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2971 Serge 1
SYSTEM FUNCTIONS of OS Kolibri 0.7.5.0
114 mikedld 2
 
3
Number of the function is located in the register eax.
118 diamond 4
The call of the system function is executed by "int 0x40" command.
5
All registers except explicitly declared in the returned value,
6
    including eflags, are preserved.
114 mikedld 7
 
8
 
9
======================================================================
10
============== Function 0 - define and draw the window. ==============
11
======================================================================
12
Defines an application window. Draws a frame of the window, header and
133 diamond 13
working area. For skinned windows defines standard close and minimize
14
buttons.
114 mikedld 15
Parameters:
118 diamond 16
  * eax = 0 - function number
114 mikedld 17
  * ebx = [coordinate on axis x]*65536 + [size on axis x]
18
  * ecx = [coordinate on axis y]*65536 + [size on axis y]
19
  * edx = 0xXYRRGGBB, where:
20
    * Y = style of the window:
131 diamond 21
      * Y=0 - type I - fixed-size window
118 diamond 22
      * Y=1 - only define window area, draw nothing
131 diamond 23
      * Y=2 - type II - variable-size window
24
      * Y=3 - skinned window
641 diamond 25
      * Y=4 - skinned fixed-size window
26
      * other possible values (from 5 up to 15) are reserved,
114 mikedld 27
        function call with such Y is ignored
118 diamond 28
    * RR, GG, BB = accordingly red, green, blue components of a color
29
      of the working area of the window (are ignored for style Y=2)
114 mikedld 30
    * X = DCBA (bits)
641 diamond 31
      * A = 1 - window has caption; for styles Y=3,4 caption string
118 diamond 32
                  must be passed in edi, for other styles use
33
                  subfunction 1 of function 71
34
      * B = 1 - coordinates of all graphics primitives are relative to
35
                  window client area
303 mikedld 36
      * C = 1 - don't fill working area on window draw
118 diamond 37
      * D = 0 - normal filling of the working area, 1 - gradient
38
    The following parameters are intended for windows
39
    of a type I and II, and ignored for styles Y=1,3:
40
  * esi = 0xXYRRGGBB - color of the header
41
    * RR, GG, BB define color
114 mikedld 42
    * Y=0 - usual window, Y=1 - unmovable window
118 diamond 43
    * X defines a gradient of header: X=0 - no gradient,
114 mikedld 44
      X=8 - usual gradient,
45
      for windows of a type II X=4 - negative gradient
118 diamond 46
    * other values of X and Y are reserved
47
  * edi = 0x00RRGGBB - color of the frame
114 mikedld 48
Returned value:
49
  * function does not return value
50
Remarks:
118 diamond 51
  * Position and sizes of the window are installed by the first
52
    call of this function and are ignored at subsequent; to change
53
    position and/or sizes of already created window use function 67.
641 diamond 54
  * For windows with styles Y=3,4 and caption (A=1) caption string
55
    is set by the first call of this function and is ignored
56
    at subsequent (strictly speaking, is ignored after a call to
57
    subfunction 2 of function 12 - end redraw); to change caption of
58
    already created window use subfunction 1 of function 71.
118 diamond 59
  * If the window has appropriate styles, position and/or sizes can be
60
    changed by user. Current position and sizes can be obtained
61
    by function 9.
62
  * The window must fit on the screen. If the transferred
63
    coordinates and sizes do not satisfy to this condition,
64
    appropriate coordinate (or, probably, both) is considered as zero,
131 diamond 65
    and if it does not help too, the appropriate size
118 diamond 66
    (or, probably, both) is installed in a size of the screen.
114 mikedld 67
 
131 diamond 68
    Further let us designate xpos,ypos,xsize,ysize - values passed
69
    in ebx,ecx. The coordinates are resulted concerning
118 diamond 70
    the left upper corner of the window, which, thus, is set as (0,0),
71
    coordinates of the right lower corner essence (xsize,ysize).
72
  * The sizes of the window are understood in sence of coordinates
73
    of the right lower corner. This concerns all other functions too.
74
    It means, that the real sizes are on 1 pixel more.
75
  * The window of type I looks as follows:
76
    * draw external frame of color indicated in edi, 1 pixel in width
77
    * draw header - rectangle with the left upper corner (1,1) and
78
      right lower (xsize-1,min(25,ysize)) color indicated in esi
79
      (taking a gradient into account)
80
    * if ysize>=26, fill the working area of the window -
81
      rectangle with the left upper corner (1,21) and right lower
82
      (xsize-1,ysize-1) (sizes (xsize-1)*(ysize-21)) with color
83
      indicated in edx (taking a gradient into account)
84
    * if A=1 and caption has been already set by subfunction 1
85
      of function 71, it is drawn in the corresponding place of header
86
  * The window of style Y=1 looks as follows:
114 mikedld 87
    * completely defined by the application
118 diamond 88
  * The window of type II looks as follows:
89
    * draw external frame of width 1 pixel with the "shaded" color
90
      edi (all components of the color decrease twice)
91
    * draw intermediate frame of width 3 pixels with color edi
92
    * draw internal frame of width 1 pixel with the "shaded" color edi
114 mikedld 93
    * draw header - rectangle with the left upper corner (4,4)
118 diamond 94
      and right lower (xsize-4,min(20,ysize)) color, indicated in esi
95
      (taking a gradient into account)
96
    * if ysize>=26, fill the working area of the window -
114 mikedld 97
      rectangle with the left upper corner (5,20) and right lower
118 diamond 98
      (xsize-5,ysize-5) with color indicated in edx
99
      (taking a gradient into account)
100
    * if A=1 and caption has been already set by subfunction 1
101
      of function 71, it is drawn in the corresponding place of header
102
  * The skinned window looks as follows:
114 mikedld 103
    * draw external frame of width 1 pixel
118 diamond 104
      with color 'outer' from the skin
105
    * draw intermediate frame of width 3 pixel
106
      with color 'frame' from the skin
107
    * draw internal frame of width 1 pixel
108
      with color 'inner' from the skin
109
    * draw header (on bitmaps from the skin) in a rectangle
114 mikedld 110
      (0,0) - (xsize,_skinh-1)
118 diamond 111
    * if ysize>=26, fill the working area of the window -
112
      rectangle with the left upper corner (5,_skinh) and right lower
113
      (xsize-5,ysize-5) with color indicated in edx
114
      (taking a gradient into account)
133 diamond 115
    * define two standard buttons: close and minimize
114 mikedld 116
      (see function 8)
118 diamond 117
    * if A=1 and edi contains (nonzero) pointer to caption string,
118
      it is drawn in place in header defined in the skin
119
    * value _skinh is accessible as the result of call
120
      subfunction 4 of function 48
114 mikedld 121
 
122
======================================================================
118 diamond 123
================ Function 1 - put pixel in the window. ===============
114 mikedld 124
======================================================================
125
Parameters:
118 diamond 126
  * eax = 1 - function number
127
  * ebx = x-coordinate (relative to the window)
128
  * ecx = y-coordinate (relative to the window)
129
  * edx = 0x00RRGGBB - color of a pixel
130
    edx = 0x01xxxxxx - invert color of a pixel
131
          (low 24 bits are ignored)
114 mikedld 132
Returned value:
133
  * function does not return value
134
 
135
======================================================================
118 diamond 136
============ Function 2 - get the code of the pressed key. ===========
114 mikedld 137
======================================================================
138
Takes away the code of the pressed key from the buffer.
139
Parameters:
118 diamond 140
  * eax = 2 - function number
114 mikedld 141
Returned value:
118 diamond 142
  * if the buffer is empty, function returns eax=1
143
  * if the buffer is not empty, function returns al=0,
144
    ah=code of the pressed key, high word of eax is zero
145
  * if there is "hotkey", function returns al=2,
146
    ah=scancode of the pressed key (0 for control keys),
147
    high word of eax contains a status of control keys at the moment
148
    of pressing a hotkey
114 mikedld 149
Remarks:
118 diamond 150
  * There is a common system buffer of the pressed keys
151
    by a size of 120 bytes, organized as queue.
152
  * There is one more common system buffer on 120 "hotkeys".
153
  * If the application with the inactive window calls this function,
154
    the buffer of the pressed keys is considered to be empty.
155
  * By default this function returns ASCII-codes; to switch
156
    to the scancodes mode (and back) use function 66.
157
    However, hotkeys are always notificated as scancodes.
158
  * To find out, what keys correspond to what codes, start
159
    the application keyascii and scancode.
160
  * Scancodes come directly from keyboard and are fixed;
161
    ASCII-codes turn out with usage of the conversion tables,
162
    which can be set by subfunction 2 of function 21
163
    and get by subfunction 2 of function 26.
164
  * As a consequence, ASCII-codes take into account current
165
    keyboard layout (rus/en) as opposed to scancodes.
166
  * This function notifies only about those hotkeys, which were
167
    defined by this thread by subfunction 4 of function 66.
114 mikedld 168
 
169
======================================================================
118 diamond 170
==================== Function 3 - get system time. ===================
114 mikedld 171
======================================================================
172
Parameters:
118 diamond 173
  * eax = 3 - function number
114 mikedld 174
Returned value:
175
  * eax = 0x00SSMMHH, where HH:MM:SS = Hours:Minutes:Seconds
118 diamond 176
  * each item is BCD-number, for example,
177
    for time 23:59:59 function returns 0x00595923
114 mikedld 178
Remarks:
118 diamond 179
  * See also subfunction 9 of function 26 - get time from
180
    the moment of start of the system; it is more convenient, because
181
    returns simply DWORD-value of the time counter.
182
  * System time can be set by function 22.
114 mikedld 183
 
184
======================================================================
118 diamond 185
============ Function 4 - draw text string in the window. ============
114 mikedld 186
======================================================================
187
Parameters:
118 diamond 188
  * eax = 4 - function number
114 mikedld 189
  * ebx = [coordinate on axis x]*65536 + [coordinate on axis y]
190
  * ecx = 0xX0RRGGBB, where
118 diamond 191
    * RR, GG, BB specify text color
139 diamond 192
    * X=ABnn (bits):
185 heavyiron 193
    * nn specifies the used font: 0=system monospaced,
194
      1=system font of variable width
139 diamond 195
    * A=0 - output esi characters, A=1 - output ASCIIZ-string
196
    * B=1 - fill background with the color edi
118 diamond 197
  * edx = pointer to the beginning of the string
139 diamond 198
  * esi = for A=0 length of the string, must not exceed 255;
199
          for A=1 is ignored
114 mikedld 200
Returned value:
201
  * function does not return value
202
Remarks:
118 diamond 203
  * First system font is read out at loading from the file char.mt,
204
    second - from char2.mt.
205
  * Both fonts have height 9 pixels, width of the monospaced font
206
    is equal to 6 pixels.
114 mikedld 207
 
208
======================================================================
118 diamond 209
========================= Function 5 - delay. ========================
114 mikedld 210
======================================================================
211
Delays execution of the program on the given time.
212
Parameters:
118 diamond 213
  * eax = 5 - function number
114 mikedld 214
  * ebx = time in the 1/100 of second
215
Returned value:
216
  * function does not return value
217
Remarks:
118 diamond 218
  * Passing ebx=0 does not transfer control to the next process
219
    and does not make any operations at all. If it is really required
220
    to transfer control to the next process (to complete a current
221
    time slice), use subfunction 1 of function 68.
114 mikedld 222
 
223
======================================================================
118 diamond 224
============== Function 6 - read the file from ramdisk. ==============
114 mikedld 225
======================================================================
226
Parameters:
118 diamond 227
  * eax = 6 - function number
228
  * ebx = pointer to the filename
229
  * ecx = number of start block, beginning from 1;
230
    ecx=0 - read from the beginning of the file (same as ecx=1)
231
  * edx = number of blocks to read;
232
    edx=0 - read one block (same as edx=1)
233
  * esi = pointer to memory area for the data
114 mikedld 234
Returned value:
118 diamond 235
  * eax = file size in bytes, if the file was successfully read
236
  * eax = -1, if the file was not found
114 mikedld 237
Remarks:
118 diamond 238
  * This function is out-of-date; function 70 allows
239
    to fulfil the same operations with the extended possibilities.
114 mikedld 240
  * Block = 512 bytes.
118 diamond 241
  * For reading all file you can specify the certainly large value
242
    in edx, for example, edx = -1; but in this case be ready that
243
    the program will "fall", if the file will appear too large and can
244
    not be placed in the program memory.
245
  * The filename must be either in the format 8+3 characters
246
    (first 8 characters - name itself, last 3 - extension,
247
    the short names and extensions are supplemented with spaces),
248
    or in the format 8.3 characters "FILE.EXT"/"FILE.EX "
249
    (name no more than 8 characters, dot, extension 3 characters
250
    supplemented if necessary by spaces).
251
    The filename must be written with capital letters. The terminating
252
    character with code 0 is not necessary (not ASCIIZ-string).
253
  * This function does not support folders on the ramdisk.
114 mikedld 254
 
255
======================================================================
256
=============== Function 7 - draw image in the window. ===============
257
======================================================================
118 diamond 258
Paramters:
259
  * eax = 7 - function number
260
  * ebx = pointer to the image in the format BBGGRRBBGGRR...
114 mikedld 261
  * ecx = [size on axis x]*65536 + [size on axis y]
262
  * edx = [coordinate on axis x]*65536 + [coordinate on axis y]
263
Returned value:
264
  * function does not return value
265
Remarks:
118 diamond 266
  * Coordinates of the image are coordinates of the upper left corner
267
    of the image relative to the window.
114 mikedld 268
  * Size of the image in bytes is 3*xsize*ysize.
269
 
270
======================================================================
271
=============== Function 8 - define/delete the button. ===============
272
======================================================================
118 diamond 273
Parameters for button definition:
274
  * eax = 8 - function number
114 mikedld 275
  * ebx = [coordinate on axis x]*65536 + [size on axis x]
276
  * ecx = [coordinate on axis y]*65536 + [size on axis y]
277
  * edx = 0xXYnnnnnn, where:
278
    * nnnnnn = identifier of the button
118 diamond 279
    * high (31st) bit of edx is cleared
280
    * if 30th bit of edx is set - do not draw the button
281
    * if 29th bit of edx is set - do not draw a frame
114 mikedld 282
      at pressing the button
118 diamond 283
  * esi = 0x00RRGGBB - color of the button
284
Parameters for button deleting:
285
  * eax = 8 - function number
114 mikedld 286
  * edx = 0x80nnnnnn, where nnnnnn - identifier of the button
287
Returned value:
288
  * function does not return value
289
Remarks:
118 diamond 290
  * Sizes of the button must be more than 0 and less than 0x8000.
131 diamond 291
  * For skinned windows definition of the window
118 diamond 292
    (call of 0th function) creates two standard buttons -
293
    for close of the window with identifier 1 and
294
    for minimize of the window with identifier 0xffff.
295
  * The creation of two buttons with same identifiers is admitted.
296
  * The button with the identifier 0xffff at pressing is interpreted
297
    by the system as the button of minimization, the system handles
298
    such pressing independently, not accessing to the application.
299
    In rest it is usual button.
300
  * Total number of buttons for all applications is limited to 4095.
114 mikedld 301
 
302
======================================================================
118 diamond 303
============ Function 9 - information on execution thread. ===========
114 mikedld 304
======================================================================
305
Parameters:
118 diamond 306
  * eax = 9 - function number
307
  * ebx = pointer to 1-Kb buffer
308
  * ecx = number of the slot of the thread
309
    ecx = -1 - get information on the current thread
114 mikedld 310
Returned value:
118 diamond 311
  * eax = maximum number of the slot of a thread
312
  * buffer pointed to by ebx contains the following information:
313
    * +0: dword: usage of the processor (how many time units
314
      per second leaves on execution of this thread)
114 mikedld 315
    * +4: word: position of the window of thread in the window stack
118 diamond 316
    * +6: word: (has no relation to the specified thread)
317
      number of the thread slot, which window has in the window stack
318
      position ecx
114 mikedld 319
    * +8: word: reserved
320
    * +10 = +0xA: 11 bytes: name of the process
118 diamond 321
      (name of corresponding executable file in the format 8+3)
142 diamond 322
    * +21 = +0x15: byte: reserved, this byte is not changed
114 mikedld 323
    * +22 = +0x16: dword: address of the process in memory
324
    * +26 = +0x1A: dword: size of used memory - 1
325
    * +30 = +0x1E: dword: identifier (PID/TID)
118 diamond 326
    * +34 = +0x22: dword: coordinate of the thread window on axis x
327
    * +38 = +0x26: dword: coordinate of the thread window on axis y
328
    * +42 = +0x2A: dword: size of the thread window on axis x
329
    * +46 = +0x2E: dword: size of the thread window on axis y
330
    * +50 = +0x32: word: status of the thread slot:
331
      * 0 = thread is running
332
      * 1 = thread is suspended
333
      * 2 = thread is suspended while waiting for event
334
      * 3 = thread is terminating as a result of call to function -1
335
        or under duress as a result of call to subfunction 2
336
        of function 18 or termination of the system
337
      * 4 = thread is terminating as a result of exception
338
      * 5 = thread waits for event
339
      * 9 = requested slot is free, all other information on the slot
340
        is not meaningful
142 diamond 341
    * +52 = +0x34: word: reserved, this word is not changed
342
    * +54 = +0x36: dword: coordinate of the client area on axis x
343
    * +58 = +0x3A: dword: coordinate of the client area on axis y
344
    * +62 = +0x3E: dword: width of the client area
345
    * +66 = +0x42: dword: height of the client area
346
    * +70 = +0x46: byte: state of the window - bitfield
347
      * bit 0 (mask 1): window is maximized
348
      * bit 1 (mask 2): window is minimized to panel
349
      * bit 2 (mask 4): window is rolled up
114 mikedld 350
Remarks:
118 diamond 351
  * Slots are numbered starting from 1.
352
  * Returned value is not a total number of threads, because there
353
    can be free slots.
354
  * When process is starting, system automatically creates
355
    execution thread.
356
  * Function gives information on the thread. Each process has
357
    at least one thread. One process can create many threads,
358
    in this case each thread has its own slot and the fields
359
    +10, +22, +26 in these slots coincide.
360
    Applications have no common way to define whether two threads
114 mikedld 361
    belong to one process.
118 diamond 362
  * The active window - window on top of the window stack -
363
    receives the messages on a keyboard input. For such window
364
    the position in the window stack coincides with returned value.
365
  * Slot 1 corresponds to special system thread, for which:
366
    * the window is in the bottom of the window stack, the fields
367
      +4 and +6 contain value 1
368
    * name of the process - "OS/IDLE" (supplemented by spaces)
369
    * address of the process in memory is 0, size of used memory is
114 mikedld 370
      16 Mb (0x1000000)
371
    * PID=1
142 diamond 372
    * coordinates and sizes of the window and the client area are by
373
      convention set to 0
118 diamond 374
    * status of the slot is always 0 (running)
375
    * the execution time adds of time leaving on operations itself
376
      and idle time in waiting for interrupt (which can be got by call
377
      to subfunction 4 of function 18).
378
  * Beginning from slot 2, the normal applications are placed.
379
  * The normal applications are placed in memory at the address
193 diamond 380
    0x60400000 (kernel constant 'std_application_base_address').
118 diamond 381
    There is no intersection, as each process has its own page table.
382
  * At creation of the thread it is assigned the slot
383
    in the system table and identifier (Process/Thread IDentifier =
384
    PID/TID), which do not vary with time for given thread.
385
    After completion of the thread its slot can be anew used
386
    for another thread. The thread identifier can not be assigned
387
    to other thread even after completion of this thread.
388
    Identifiers, assigned to new threads, grow monotonously.
389
  * If the thread has not yet defined the window by call to
390
    function 0, the position and the sizes
391
    of its window are considered to be zero.
142 diamond 392
  * Coordinates of the client area are relative to the window.
118 diamond 393
  * At the moment only the part of the buffer by a size
142 diamond 394
    71 = 0x37 bytes is used. Nevertheless it is recommended to use
118 diamond 395
    1-Kb buffer for the future compatibility, in the future
396
    some fields can be added.
114 mikedld 397
 
398
======================================================================
118 diamond 399
==================== Function 10 - wait for event. ===================
114 mikedld 400
======================================================================
118 diamond 401
If the message queue is empty, waits for appearance of the message
402
in queue. In this state thread does not consume CPU time.
114 mikedld 403
Then reads out the message from queue.
404
 
405
Parameters:
118 diamond 406
  * eax = 10 - function number
114 mikedld 407
Returned value:
118 diamond 408
  * eax = event (see the list of events)
114 mikedld 409
Remarks:
118 diamond 410
  * Those events are taken into account only which enter into
411
    a mask set by function 40. By default it is
412
    redraw, key and button events.
413
  * To check, whether there is a message in queue, use function 11.
414
    To wait for no more than given time, use function 23.
114 mikedld 415
 
118 diamond 416
======================================================================
417
=============== Function 11 - check for event, no wait. ==============
418
======================================================================
419
If the message queue contains event, function reads out
420
and return it. If the queue is empty, function returns 0.
114 mikedld 421
Parameters:
118 diamond 422
  * eax = 11 - function number
114 mikedld 423
Returned value:
424
  * eax = 0 - message queue is empty
118 diamond 425
  * else eax = event (see the list of events)
114 mikedld 426
Remarks:
118 diamond 427
  * Those events are taken into account only, which enter into
428
    a mask set by function 40. By default it is
429
    redraw, key and button events.
430
  * To wait for event, use function 10.
431
    To wait for no more than given time, use function 23.
114 mikedld 432
 
433
======================================================================
118 diamond 434
=============== Function 12 - begin/end window redraw. ===============
114 mikedld 435
======================================================================
436
 
139 diamond 437
---------------- Subfunction 1 - begin window redraw. ----------------
114 mikedld 438
Parameters:
118 diamond 439
  * eax = 12 - function number
440
  * ebx = 1 - subfunction number
114 mikedld 441
Returned value:
442
  * function does not return value
443
 
139 diamond 444
----------------- Subfunction 2 - end window redraw. -----------------
114 mikedld 445
Parameters:
118 diamond 446
  * eax = 12 - function number
447
  * ebx = 2 - subfunction number
114 mikedld 448
Returned value:
449
  * function does not return value
450
Remarks:
118 diamond 451
  * Subfunction 1 deletes all buttons defined with
452
    function 8, they must be defined again.
114 mikedld 453
 
454
======================================================================
455
============ Function 13 - draw a rectangle in the window. ===========
456
======================================================================
457
Parameters:
118 diamond 458
  * eax = 13 - function number
114 mikedld 459
  * ebx = [coordinate on axis x]*65536 + [size on axis x]
460
  * ecx = [coordinate on axis y]*65536 + [size on axis y]
118 diamond 461
  * edx = color 0xRRGGBB or 0x80RRGGBB for gradient fill
114 mikedld 462
Returned value:
463
  * function does not return value
464
Remarks:
465
  * Coordinates are understood as coordinates of the left upper corner
118 diamond 466
    of a rectangle relative to the window.
114 mikedld 467
 
468
======================================================================
118 diamond 469
=================== Function 14 - get screen size. ===================
114 mikedld 470
======================================================================
471
Parameters:
118 diamond 472
  * eax = 14 - function number
114 mikedld 473
Returned value:
474
  * eax = [xsize]*65536 + [ysize], where
475
  * xsize = x-coordinate of the right lower corner of the screen =
118 diamond 476
            horizontal size - 1
114 mikedld 477
  * ysize = y-coordinate of the right lower corner of the screen =
118 diamond 478
            vertical size - 1
114 mikedld 479
Remarks:
118 diamond 480
  * See also subfunction 5 of function 48 - get sizes of
481
    working area of the screen.
114 mikedld 482
 
118 diamond 483
======================================================================
484
== Function 15, subfunction 1 - set a size of the background image. ==
485
======================================================================
114 mikedld 486
Parameters:
118 diamond 487
  * eax = 15 - function number
488
  * ebx = 1 - subfunction number
114 mikedld 489
  * ecx = width of the image
490
  * edx = height of the image
491
Returned value:
492
  * function does not return value
493
Remarks:
499 diamond 494
  * Before calling subfunctions 2 and 5 you should call this function
485 heavyiron 495
    to set image size!
118 diamond 496
  * For update of the screen (after completion of a series of commands
497
    working with a background) call subfunction 3.
498
  * There is a pair function for get size of the background image -
499
    subfunction 1 of function 39.
114 mikedld 500
 
501
======================================================================
118 diamond 502
=== Function 15, subfunction 2 - put pixel on the background image. ==
114 mikedld 503
======================================================================
504
Parameters:
118 diamond 505
  * eax = 15 - function number
506
  * ebx = 2 - subfunction number
114 mikedld 507
  * ecx = offset
118 diamond 508
  * edx = color of a pixel 0xRRGGBB
114 mikedld 509
Returned value:
510
  * function does not return value
511
Remarks:
118 diamond 512
  * Offset for a pixel with coordinates (x,y) is calculated as
114 mikedld 513
    (x+y*xsize)*3.
499 diamond 514
  * If the given offset exceeds size set by subfunction 1,
118 diamond 515
    the call is ignored.
516
  * For update of the screen (after completion of a series of commands
517
    working with a background) call subfunction 3.
518
  * There is a pair function for get pixel on the background image -
519
    subfunction 2 of function 39.
114 mikedld 520
 
521
======================================================================
522
=========== Function 15, subfunction 3 - redraw background. ==========
523
======================================================================
524
Parameters:
118 diamond 525
  * eax = 15 - function number
526
  * ebx = 3 - subfunction number
114 mikedld 527
Returned value:
528
  * function does not return value
529
 
118 diamond 530
======================================================================
531
== Function 15, subfunction 4 - set drawing mode for the background. =
532
======================================================================
114 mikedld 533
Parameters:
118 diamond 534
  * eax = 15 - function number
535
  * ebx = 4 - subfunction number
536
  * ecx = drawing mode:
114 mikedld 537
    * 1 = tile
538
    * 2 = stretch
539
Returned value:
540
  * function does not return value
541
Remarks:
118 diamond 542
  * For update of the screen (after completion of a series of commands
543
    working with a background) call subfunction 3.
544
  * There is a pair function for get drawing mode of the background -
545
    subfunction 4 of function 39.
114 mikedld 546
 
118 diamond 547
======================================================================
548
===================== Function 15, subfunction 5 =====================
549
============ Put block of pixels on the background image. ============
550
======================================================================
114 mikedld 551
Parameters:
118 diamond 552
  * eax = 15 - function number
553
  * ebx = 5 - subfunction number
554
  * ecx = pointer to the data in the format BBGGRRBBGGRR...
114 mikedld 555
  * edx = offset in data of the background image
118 diamond 556
  * esi = size of data in bytes = 3 * number of pixels
114 mikedld 557
Returned value:
558
  * function does not return value
559
Remarks:
499 diamond 560
  * Offset and size are not checked for correctness.
118 diamond 561
  * Color of each pixel is stored as 3-bytes value BBGGRR.
562
  * Pixels of the background image are written sequentially
563
    from left to right, from up to down.
564
  * Offset of pixel with coordinates (x,y) is (x+y*xsize)*3.
565
  * For update of the screen (after completion of a series of commands
566
    working with a background) call subfunction 3.
114 mikedld 567
 
568
======================================================================
546 diamond 569
===================== Function 15, subfunction 6 =====================
570
======== Map background data to the address space of process. ========
571
======================================================================
572
Parameters:
573
  * eax = 15 - function number
574
  * ebx = 6 - subfunction number
575
Returned value:
576
  * eax = pointer to background data, 0 if error
577
Remarks:
578
  * Mapped data are available for read and write.
579
  * Size of background data is 3*xsize*ysize. The system blocks
580
    changes of background sizes while process works with mapped data.
581
  * Color of each pixel is stored as 3-bytes value BBGGRR.
582
  * Pixels of the background image are written sequentially
583
    from left to right, from up to down.
584
 
585
======================================================================
586
===== Function 15, subfunction 7 - close mapped background data. =====
587
======================================================================
588
Parameters:
589
  * eax = 15 - function number
590
  * ebx = 7 - subfunction number
591
  * ecx = pointer to mapped data
592
Returned value:
593
  * eax = 1 - success, 0 - error
594
 
595
======================================================================
118 diamond 596
=============== Function 16 - save ramdisk on a floppy. ==============
114 mikedld 597
======================================================================
598
Parameters:
118 diamond 599
  * eax = 16 - function number
600
  * ebx = 1 or ebx = 2 - on which floppy save
114 mikedld 601
Returned value:
118 diamond 602
  * eax = 0 - success
114 mikedld 603
  * eax = 1 - error
604
 
605
======================================================================
118 diamond 606
======= Function 17 - get the identifier of the pressed button. ======
114 mikedld 607
======================================================================
608
Takes away the code of the pressed button from the buffer.
609
Parameters:
118 diamond 610
  * eax = 17 - function number
114 mikedld 611
Returned value:
118 diamond 612
  * if the buffer is empty, function returns eax=1
2971 Serge 613
  * if the buffer is not empty:
614
    * high 24 bits of eax contain button identifier (in particular,
615
      ah contains low byte of the identifier; if all buttons have
616
      the identifier less than 256, ah is enough to distinguish)
617
    * al = 0 - the button was pressed with left mouse button
618
    * al = bit corresponding to used mouse button otherwise
114 mikedld 619
Remarks:
118 diamond 620
  * "Buffer" keeps only one button, at pressing the new button the
621
    information about old is lost.
622
  * The call of this function by an application with inactive window
623
    will return answer "buffer is empty".
2971 Serge 624
  * Returned value for al corresponds to the state of mouse buttons
625
    as in subfunction 2 of function 37 at the beginning
626
    of button press, excluding lower bit, which is cleared.
114 mikedld 627
 
628
======================================================================
118 diamond 629
= Function 18, subfunction 2 - terminate process/thread by the slot. =
114 mikedld 630
======================================================================
631
Parameters:
118 diamond 632
  * eax = 18 - function number
633
  * ebx = 2 - subfunction number
114 mikedld 634
  * ecx = number of the slot of process/thread
635
Returned value:
636
  * function does not return value
637
Remarks:
118 diamond 638
  * It is impossible to terminate system thread OS/IDLE (with
639
    number of the slot 1),
640
    it is possible to terminate any normal process/thread.
641
  * See also subfunction 18 - terminate
642
    process/thread by the identifier.
114 mikedld 643
 
118 diamond 644
======================================================================
645
===================== Function 18, subfunction 3 =====================
646
============= Make active the window of the given thread. ============
647
======================================================================
114 mikedld 648
Parameters:
118 diamond 649
  * eax = 18 - function number
650
  * ebx = 3 - subfunction number
651
  * ecx = number of the thread slot
114 mikedld 652
Returned value:
653
  * function does not return value
654
Remarks:
118 diamond 655
  * If correct, but nonexistent slot is given,
656
    some window is made active.
657
  * To find out, which window is active, use subfunction 7.
114 mikedld 658
 
118 diamond 659
======================================================================
660
===================== Function 18, subfunction 4 =====================
661
=========== Get counter of idle time units per one second. ===========
662
======================================================================
663
Idle time units are units, in which the processor stands idle
664
in waiting for interrupt (in the command 'hlt').
114 mikedld 665
 
666
Parameters:
118 diamond 667
  * eax = 18 - function number
668
  * ebx = 4 - subfunction number
114 mikedld 669
Returned value:
118 diamond 670
  * eax = value of the counter of idle time units per one second
114 mikedld 671
 
672
======================================================================
118 diamond 673
========== Function 18, subfunction 5 - get CPU clock rate. ==========
114 mikedld 674
======================================================================
675
Parameters:
118 diamond 676
  * eax = 18 - function number
677
  * ebx = 5 - subfunction number
114 mikedld 678
Returned value:
118 diamond 679
  * eax = clock rate (modulo 2^32 clock ticks = 4GHz)
114 mikedld 680
 
118 diamond 681
======================================================================
2971 Serge 682
 Function 18, subfunction 6 - save ramdisk to the file on hard drive.
118 diamond 683
======================================================================
114 mikedld 684
Parameters:
118 diamond 685
  * eax = 18 - function number
686
  * ebx = 6 - subfunction number
341 heavyiron 687
  * ecx = pointer to the full path to file
688
    (for example, "/hd0/1/kolibri/kolibri.img")
114 mikedld 689
Returned value:
118 diamond 690
  * eax = 0 - success
691
  * else eax = error code of the file system
499 diamond 692
Remarks:
118 diamond 693
  * All folders in the given path must exist, otherwise function
694
    returns value 5, "file not found".
114 mikedld 695
 
696
======================================================================
118 diamond 697
=========== Function 18, subfunction 7 - get active window. ==========
114 mikedld 698
======================================================================
699
Parameters:
118 diamond 700
  * eax = 18 - function number
701
  * ebx = 7 - subfunction number
114 mikedld 702
Returned value:
118 diamond 703
  * eax = number of the active window
704
    (number of the slot of the thread with active window)
114 mikedld 705
Remarks:
118 diamond 706
  * Active window is at the top of the window stack and receives
707
    messages on all keyboard input.
708
  * To make a window active, use subfunction 3.
114 mikedld 709
 
118 diamond 710
======================================================================
711
== Function 18, subfunction 8 - disable/enable the internal speaker. =
712
======================================================================
713
If speaker sound is disabled, all calls to subfunction 55 of
714
function 55 are ignored. If speaker sound is enabled,
715
they are routed on builtin speaker.
114 mikedld 716
 
118 diamond 717
------------------- Subsubfunction 1 - get status. -------------------
114 mikedld 718
Parameters:
118 diamond 719
  * eax = 18 - function number
720
  * ebx = 8 - subfunction number
721
  * ecx = 1 - number of the subsubfunction
114 mikedld 722
Returned value:
118 diamond 723
  * eax = 0 - speaker sound is enabled; 1 - disabled
114 mikedld 724
 
118 diamond 725
----------------- Subsubfunction 2 - toggle status. ------------------
726
Toggles states of disable/enable.
114 mikedld 727
Parameters:
118 diamond 728
  * eax = 18 - function number
729
  * ebx = 8 - subfunction number
730
  * ecx = 2 - number of the subsubfunction
114 mikedld 731
Returned value:
732
  * function does not return value
733
 
118 diamond 734
======================================================================
2971 Serge 735
== Function 18, subfunction 9 - system shutdown with the parameter. ==
118 diamond 736
======================================================================
114 mikedld 737
Parameters:
118 diamond 738
  * eax = 18 - function number
739
  * ebx = 9 - subfunction number
114 mikedld 740
  * ecx = parameter:
118 diamond 741
    * 2 = turn off computer
742
    * 3 = reboot computer
743
    * 4 = restart the kernel from the file 'kernel.mnt' on ramdisk
114 mikedld 744
Returned value:
118 diamond 745
  * at incorrect ecx the registers do not change (i.e. eax=18)
746
  * by correct call function always returns eax=0
747
    as the tag of success
114 mikedld 748
Remarks:
118 diamond 749
  * Do not rely on returned value by incorrect call, it can be
750
    changed in future versions of the kernel.
2971 Serge 751
 
118 diamond 752
======================================================================
753
===== Function 18, subfunction 10 - minimize application window. =====
754
======================================================================
755
Minimizes the own window.
114 mikedld 756
Parameters:
118 diamond 757
  * eax = 18 - function number
758
  * ebx = 10 - subfunction number
114 mikedld 759
Returned value:
760
  * function does not return value
761
Remarks:
118 diamond 762
  * The minimized window from the point of view of function 9
763
    keeps position and sizes.
2971 Serge 764
  * Restoring of an application window occurs at its activation by
118 diamond 765
    subfunction 3.
766
  * Usually there is no necessity to minimize/restire a window
767
    obviously: minimization of a window is carried out by the system
768
    at pressing the minimization button (for skinned windows
769
    it is defined automatically by function 0,
770
    for other windows it can be defined manually by function 8),
771
    restore of a window is done by the application '@panel'.
114 mikedld 772
 
773
======================================================================
2971 Serge 774
 Function 18, subfunction 11 - get information on the disk subsystem.
114 mikedld 775
======================================================================
776
Parameters:
118 diamond 777
  * eax = 18 - function number
778
  * ebx = 11 - subfunction number
114 mikedld 779
  * ecx = type of the table:
780
    * 1 = short version, 10 bytes
781
    * 2 = full version, 65536 bytes
118 diamond 782
  * edx = pointer to the buffer (in the application) for the table
114 mikedld 783
Returned value:
784
  * function does not return value
118 diamond 785
Format of the table: short version:
786
  * +0: byte: information about FDD's (drives for floppies),
787
    AAAABBBB, where AAAA gives type of the first drive, BBBB -
788
    of the second regarding to the following list:
114 mikedld 789
    * 0 = there is no drive
790
    * 1 = 360Kb, 5.25''
791
    * 2 = 1.2Mb, 5.25''
792
    * 3 = 720Kb, 3.5''
793
    * 4 = 1.44Mb, 3.5''
118 diamond 794
    * 5 = 2.88Mb, 3.5'' (such drives are not used anymore)
795
    For example, for the standard configuration from one 1.44-drive
796
    here will be 40h, and for the case 1.2Mb on A: and 1.44Mb on B:
797
    the value is 24h.
798
  * +1: byte: information about hard disks and CD-drives, AABBCCDD,
114 mikedld 799
    where AA corresponds to the controller IDE0, ..., DD - IDE3:
800
    * 0 = device is absent
118 diamond 801
    * 1 = hard drive
802
    * 2 = CD-drive
803
    For example, in the case HD on IDE0 and CD on IDE2
804
    this field contains 48h.
805
  * +2: 4 db: number of the retrieved partitions on hard disks
806
    at accordingly IDE0,...,IDE3.
807
    If the hard disk on IDEx is absent, appropriate byte is zero,
808
    otherwise it shows number of the recognized partitions, which
809
    can be not presented (if the drive is not formatted or if
810
    the file system is not supported). Current version of the kernel
277 diamond 811
    supports only FAT16, FAT32 and NTFS for hard disks.
114 mikedld 812
  * +6: 4 db: reserved
118 diamond 813
Format of the table: full version:
814
  * +0: 10 db: same as for the short version
114 mikedld 815
  * +10: 100 db: data for the first partition
816
  * +110: 100 db: data for the second partition
817
  * ...
818
  * +10+100*(n-1): 100 db: data for the last partition
118 diamond 819
The partitions are located as follows: at first sequentially all
820
recoginzed partitions on HD on IDE0 (if present),
821
then on HD on IDE1 (if present) and so on up to IDE3.
822
Format of the information about partition
823
(at moment only FAT is supported):
114 mikedld 824
  * +0: dword: first physical sector of the partition
825
  * +4: dword: last physical sector of the partition
118 diamond 826
    (belongs to the partition)
277 diamond 827
  * +8: byte: file system type:
828
    16=FAT16, 32=FAT32, 1=NTFS
829
  * other data are dependent on file system, are modified with
830
    kernel modifications and therefore are not described
114 mikedld 831
Remarks:
118 diamond 832
  * The short table can be used for obtaining the information about
833
    available devices.
114 mikedld 834
 
835
======================================================================
118 diamond 836
========== Function 18, subfunction 13 - get kernel version. =========
114 mikedld 837
======================================================================
838
Parameters:
118 diamond 839
  * eax = 18 - function number
840
  * ebx = 13 - subfunction number
841
  * ecx = pointer to the buffer (not less than 16 bytes), where
842
    the information will be placed
114 mikedld 843
Returned value:
844
  * function does not return value
845
Structure of the buffer:
846
db a,b,c,d for version a.b.c.d
847
db UID_xxx: one of UID_NONE=0, UID_MENUET=1, UID_KOLIBRI=2
540 victor 848
dd REV - kernel SVN revision number
641 diamond 849
For Kolibri 0.7.1.0 kernel:
540 victor 850
db 0,7,0,0
114 mikedld 851
db 2
641 diamond 852
dd 638
114 mikedld 853
 
118 diamond 854
======================================================================
855
======= Function 18, subfunction 14 - wait for screen retrace. =======
856
======================================================================
857
Waits for the beginning of retrace of the scanning ray of the screen
858
monitor.
114 mikedld 859
Parameters:
118 diamond 860
  * eax = 18 - function number
861
  * ebx = 14 - subfunction number
114 mikedld 862
Returned value:
118 diamond 863
  * eax = 0 as the tag of success
114 mikedld 864
Remarks:
118 diamond 865
  * Function is intended only for active high-efficiency graphics
114 mikedld 866
    applications; is used for smooth output of a graphics.
867
 
118 diamond 868
======================================================================
869
== Function 18, subfunction 15 - center mouse cursor on the screen. ==
870
======================================================================
114 mikedld 871
Parameters:
118 diamond 872
  * eax = 18 - function number
873
  * ebx = 15 - subfunction number
114 mikedld 874
Returned value:
118 diamond 875
  * eax = 0 as the tag of success
114 mikedld 876
 
877
======================================================================
118 diamond 878
========= Function 18, subfunction 16 - get size of free RAM. ========
114 mikedld 879
======================================================================
880
Parameters:
118 diamond 881
  * eax = 18 - function number
882
  * ebx = 16 - subfunction number
114 mikedld 883
Returned value:
884
  * eax = size of free memory in kilobytes
885
 
886
======================================================================
118 diamond 887
======== Function 18, subfunction 17 - get full amount of RAM. =======
114 mikedld 888
======================================================================
889
Parameters:
118 diamond 890
  * eax = 18 - function number
891
  * ebx = 17 - subfunction number
114 mikedld 892
Returned value:
118 diamond 893
  * eax = total size of existing memory in kilobytes
114 mikedld 894
 
895
======================================================================
118 diamond 896
===================== Function 18, subfunction 18 ====================
897
============= Terminate process/thread by the identifier. ============
114 mikedld 898
======================================================================
899
Parameters:
118 diamond 900
  * eax = 18 - function number
901
  * ebx = 18 - subfunction number
902
  * ecx = identifer of process/thread (PID/TID)
114 mikedld 903
Returned value:
118 diamond 904
  * eax = 0 - success
905
  * eax = -1 - error (process is not found or is system)
114 mikedld 906
Remarks:
118 diamond 907
  * It is impossible to terminate system thread OS/IDLE (identifier
908
    1), it is possible to terminate any normal process/thread.
909
  * See also subfunction 2 - terminate
910
    process/thread by given slot.
114 mikedld 911
 
912
======================================================================
131 diamond 913
======== Function 18, subfunction 19 - get/set mouse features. =======
120 mario79 914
======================================================================
131 diamond 915
 
916
---------------- Subsubfunction 0 - get mouse speed. -----------------
120 mario79 917
Parameters:
918
  * eax = 18 - function number
919
  * ebx = 19 - subfunction number
131 diamond 920
  * ecx = 0 - subsubfunction number
921
Returned value:
922
  * eax = current mouse speed
120 mario79 923
 
131 diamond 924
---------------- Subsubfunction 1 - set mouse speed. -----------------
925
Parameters:
926
  * eax = 18 - function number
927
  * ebx = 19 - subfunction number
928
  * ecx = 1 - subsubfunction number
929
  * edx = new value for speed
930
Returned value:
931
  * function does not return value
120 mario79 932
 
131 diamond 933
---------------- Subsubfunction 2 - get mouse delay. -----------------
934
Parameters:
935
  * eax = 18 - function number
936
  * ebx = 19 - subfunction number
937
  * ecx = 2 - subsubfunction number
938
Returned value:
939
  * eax = current mouse delay
120 mario79 940
 
131 diamond 941
---------------- Subsubfunction 3 - set mouse delay. -----------------
942
Parameters:
943
  * eax = 18 - function number
944
  * ebx = 19 - subfunction number
945
  * ecx = 3 - subsubfunction number
946
  * edx = new value for mouse delay
947
Returned value:
948
  * function does not return value
120 mario79 949
 
131 diamond 950
----------- Subsubfunction 4 - set mouse pointer position. -----------
951
Parameters:
952
  * eax = 18 - function number
953
  * ebx = 19 - subfunction number
954
  * ecx = 4 - subsubfunction number
955
  * edx = [coordinate on axis x]*65536 + [coordinate on axis y]
956
Returned value:
957
  * function does not return value
621 mario79 958
 
641 diamond 959
-------- Subsubfunction 5 - simulate state of mouse buttons. ---------
621 mario79 960
Parameters:
961
  * eax = 18 - function number
962
  * ebx = 19 - subfunction number
963
  * ecx = 5 - subsubfunction number
641 diamond 964
  * edx = information about emulated state of mouse buttons:
965
    (same as return value in subfunction 2 of function 37)
621 mario79 966
    * bit 0 is set = left button is pressed
967
    * bit 1 is set = right button is pressed
968
    * bit 2 is set = middle button is pressed
969
    * bit 3 is set = 4th button is pressed
970
    * bit 4 is set = 5th button is pressed
971
Returned value:
972
  * function does not return value
120 mario79 973
Remarks:
131 diamond 974
  * It is recommended to set speed of the mouse (in subsubfunction 1)
975
    from 1 up to 9. The installed value is not inspected by the kernel
976
    code, so set it carefully, at incorrect value the cursor
977
    can "freeze". Speed of the mouse can be regulated through the
978
    application SETUP.
979
  * Recommended delay of the mouse (in subsubfunction 3) = 10. Lower
980
    value is not handled by COM mice. At the very large values the
981
    movement of the mouse on 1 pixel is impossible and the cursor will
982
    jump on the value of installed speed (subsubfunction 1). The
983
    installed value is not inspected by the kernel code.
133 diamond 984
    Mouse delay can be regulated through the application SETUP.
131 diamond 985
  * The subsubfunction 4 does not check the passed value. Before
986
    its call find out current screen resolution (with function 14)
987
    and check that the value of position is inside the limits of the
988
    screen.
120 mario79 989
 
990
======================================================================
193 diamond 991
======== Function 18, subfunction 20 - get information on RAM. =======
992
======================================================================
993
Parameters:
994
  * eax = 18 - function number
995
  * ebx = 20 - subfunction number
996
  * ecx = pointer to the buffer for information (36 bytes)
997
Returned value:
998
  * eax = total size of existing RAM in pages
999
    or -1 if error has occured
1000
  * buffer pointed to by ecx contains the following information:
1001
    * +0:  dword: total size of existing RAM in pages
1002
    * +4:  dword: size of free RAM in pages
1003
    * +8:  dword: number of page faults (exceptions #PF)
1004
                 in applications
1005
    * +12: dword: size of kernel heap in bytes
1006
    * +16: dword: free in kernel heap in bytes
1007
    * +20: dword: total number of memory blocks in kernel heap
1008
    * +24: dword: number of free memory blocks in kernel heap
1009
    * +28: dword: size of maximum free block in kernel heap
1010
                 (reserved)
1011
    * +32: dword: size of maximum allocated block in kernel heap
1012
                 (reserved)
1013
 
1014
======================================================================
641 diamond 1015
===================== Function 18, subfunction 21 ====================
1016
======== Get slot number of process/thread by the identifier. ========
608 alver 1017
======================================================================
1018
Parameters:
1019
  * eax = 18 - function number
1020
  * ebx = 21 - subfunction number
641 diamond 1021
  * ecx = identifer of process/thread (PID/TID)
608 alver 1022
Returned value:
641 diamond 1023
  * eax = 0 - error (invalid identifier)
1024
  * otherwise eax = slot number
608 alver 1025
 
1026
======================================================================
641 diamond 1027
===================== Function 18, subfunction 22 ====================
1028
============== Operations with window of another thread. =============
608 alver 1029
======================================================================
1030
Parameters:
1031
  * eax = 18 - function number
1032
  * ebx = 22 - subfunction number
641 diamond 1033
  * ecx = operation type:
1034
    * 0 = minimize window of the thread with given slot number
1035
    * 1 = minimize window of the thread with given identifier
1036
    * 2 = restore window of the thread with given slot number
1037
    * 3 = restore window of the thread with given identifier
1038
  * edx = parameter (slot number or PID/TID)
608 alver 1039
Returned value:
641 diamond 1040
  * eax = 0 - success
1041
  * eax = -1 - error (invalid identifier)
1042
Remarks:
1043
  * The thread can minimize its window with subfunction 10.
1044
  * One can restore and activate window simultaneously with
1045
    subfunction 3 (which requires slot number).
608 alver 1046
 
1047
======================================================================
118 diamond 1048
==================== Function 20 - MIDI interface. ===================
114 mikedld 1049
======================================================================
1050
 
118 diamond 1051
----------------------- Subfunction 1 - reset ------------------------
114 mikedld 1052
Parameters:
118 diamond 1053
  * eax = 20 - function number
1054
  * ebx = 1 - subfunction number
114 mikedld 1055
 
1056
-------------------- Subfunction 2 - output byte ---------------------
1057
Parameters:
118 diamond 1058
  * eax = 20 - function number
1059
  * ebx = 2 - subfunction number
114 mikedld 1060
  * cl = byte for output
118 diamond 1061
Returned value (is the same for both subfunctions):
1062
  * eax = 0 - success
114 mikedld 1063
  * eax = 1 - base port is not defined
1064
Remarks:
2971 Serge 1065
  * Previously the base port must be defined by
118 diamond 1066
    subfunction 1 of function 21.
114 mikedld 1067
 
1068
======================================================================
118 diamond 1069
======== Function 21, subfunction 1 - set MPU MIDI base port. ========
114 mikedld 1070
======================================================================
1071
Parameters:
118 diamond 1072
  * eax = 21 - function number
1073
  * ebx = 1 - subfunction number
1074
  * ecx = number of base port
1075
Returned value
1076
  * eax = 0 - success
114 mikedld 1077
  * eax = -1 - erratic number of a port
1078
Remarks:
118 diamond 1079
  * Number of a port must satisfy to conditions 0x100<=ecx<=0xFFFF.
1080
  * The installation of base is necessary for function 20.
1081
  * To get base port use subfunction 1 of function 26.
114 mikedld 1082
 
1083
======================================================================
118 diamond 1084
========== Function 21, subfunction 2 - set keyboard layout. =========
114 mikedld 1085
======================================================================
118 diamond 1086
Keyboard layout is used to convert keyboard scancodes to ASCII-codes,
1087
which will be read by function 2.
114 mikedld 1088
Parameters:
118 diamond 1089
  * eax = 21 - function number
1090
  * ebx = 2 - subfunction number
1091
  * ecx = which layout to set:
114 mikedld 1092
    * 1 = normal layout
1093
    * 2 = layout at pressed Shift
1094
    * 3 = layout at pressed Alt
118 diamond 1095
  * edx = pointer to layout - table of length 128 bytes
114 mikedld 1096
Or:
1097
  * ecx = 9
118 diamond 1098
  * dx = country identifier (1=eng, 2=fi, 3=ger, 4=rus)
114 mikedld 1099
Returned value:
118 diamond 1100
  * eax = 0 - success
1101
  * eax = 1 - incorrect parameter
114 mikedld 1102
Remarks:
118 diamond 1103
  * If Alt is pressed, the layout with Alt is used;
1104
    if Alt is not pressed, but Shift is pressed,
1105
    the layout with Shift is used;
1106
    if Alt and Shift are not pressed, but Ctrl is pressed, the normal
1107
    layout is used and then from the code is subtracted 0x60;
1108
    if no control key is pressed, the normal layout is used.
2971 Serge 1109
  * To get layout and country identifier use
118 diamond 1110
    subfunction 2 of function 26.
1111
  * Country identifier is global system variable, which is not used
1112
    by the kernel itself; however the application '@panel' displays
1113
    the corresponding icon.
1114
  * The application @panel switches layouts on user request.
114 mikedld 1115
 
1116
======================================================================
118 diamond 1117
============== Function 21, subfunction 3 - set CD base. =============
114 mikedld 1118
======================================================================
1119
Parameters:
118 diamond 1120
  * eax = 21 - function number
1121
  * ebx = 3 - subfunction number
1122
  * ecx = CD base: 1=IDE0, 2=IDE1, 3=IDE2, 4=IDE3
114 mikedld 1123
Returned value:
1124
  * eax = 0
1125
Remarks:
118 diamond 1126
  * CD base is used by function 24.
1127
  * To get CD base use subfunction 3 of function 26.
114 mikedld 1128
 
1129
======================================================================
118 diamond 1130
========== Function 21, subfunction 5 - set system language. =========
114 mikedld 1131
======================================================================
1132
Parameters:
118 diamond 1133
  * eax = 21 - function number
1134
  * ebx = 5 - subfunction number
1135
  * ecx = system language (1=eng, 2=fi, 3=ger, 4=rus)
114 mikedld 1136
Returned value:
1137
  * eax = 0
1138
Remarks:
118 diamond 1139
  * System language is global system variable and is not used
1140
    by the kernel itself, however application @panel draws the
1141
    appropriate icon.
1142
  * Function does not check for correctness, as the kernel does not
1143
    use this variable.
1144
  * To get system language use subfunction 5 of function 26.
114 mikedld 1145
 
1146
======================================================================
118 diamond 1147
============== Function 21, subfunction 7 - set HD base. =============
114 mikedld 1148
======================================================================
118 diamond 1149
The HD base defines hard disk to write with usage of obsolete
346 diamond 1150
syntax /HD in obsolete function 58; at usage of modern syntax
1151
/HD0,/HD1,/HD2,/HD3 base is set automatically.
114 mikedld 1152
Parameters:
118 diamond 1153
  * eax = 21 - function number
1154
  * ebx = 7 - subfunction number
1155
  * ecx = HD base: 1=IDE0, 2=IDE1, 3=IDE2, 4=IDE3
114 mikedld 1156
Returned value:
1157
  * eax = 0
1158
Remarks:
118 diamond 1159
  * Any application at any time can change the base.
1160
  * Do not change base, when any application works with hard disk.
1161
    If you do not want system bugs.
1162
  * To get HD base use subfunction 7 of function 26.
2971 Serge 1163
  * It is also necessary to define used partition of hard disk by
118 diamond 1164
    subfunction 8.
114 mikedld 1165
 
1166
======================================================================
118 diamond 1167
========= Function 21, subfunction 8 - set used HD partition. ========
114 mikedld 1168
======================================================================
118 diamond 1169
The HD partition defines partition of the hard disk to write with
346 diamond 1170
usage of obsolete syntax /HD and obsolete function 58;
118 diamond 1171
at usage of functions 58 and 70 and modern syntax /HD0,/HD1,/HD2,/HD3
346 diamond 1172
base and partition are set automatically.
114 mikedld 1173
Parameters:
118 diamond 1174
  * eax = 21 - function number
1175
  * ebx = 8 - subfunction number
1176
  * ecx = HD partition (beginning from 1)
1177
Return value:
114 mikedld 1178
  * eax = 0
1179
Remarks:
118 diamond 1180
  * Any application at any time can change partition.
1181
  * Do not change partition when any application works with hard disk.
1182
    If you do not want system bugs.
1183
  * To get used partition use subfunction 8 of function 26.
1184
  * There is no correctness checks.
2971 Serge 1185
  * To get the number of partitions of a hard disk use
118 diamond 1186
    subfunction 11 of function 18.
1187
  * It is also necessary to define used HD base by subfunction 7.
114 mikedld 1188
 
1189
======================================================================
2971 Serge 1190
 Function 21, subfunction 11 - enable/disable low-level access to HD.
114 mikedld 1191
======================================================================
1192
Parameters:
118 diamond 1193
  * eax = 21 - function number
1194
  * ebx = 11 - subfunction number
1195
  * ecx = 0/1 - disable/enable
114 mikedld 1196
Returned value:
1197
  * eax = 0
1198
Remarks:
118 diamond 1199
  * Is used in LBA-read (subfunction 8 of function 58).
1200
  * The current implementation uses only low bit of ecx.
1201
  * To get current status use subfunction 11 of function 26.
114 mikedld 1202
 
1203
======================================================================
2971 Serge 1204
 Function 21, subfunction 12 - enable/disable low-level access to PCI.
114 mikedld 1205
======================================================================
1206
Parameters:
118 diamond 1207
  * eax = 21 - function number
1208
  * ebx = 12 - subfunction number
1209
  * ecx = 0/1 - disable/enable
114 mikedld 1210
Returned value:
1211
  * eax = 0
1212
Remarks:
118 diamond 1213
  * Is used in operations with PCI bus (function 62).
1214
  * The current implementation uses only low bit of ecx.
1215
  * To get current status use subfunction 12 of function 26.
114 mikedld 1216
 
1217
======================================================================
118 diamond 1218
============ Function 21, subfunction 13, subsubfunction 1 ===========
1219
======== Initialize + get information on the driver vmode.mdr. =======
114 mikedld 1220
======================================================================
1221
Parameters:
118 diamond 1222
  * eax = 21 - function number
1223
  * ebx = 13 - subfunction number
1224
  * ecx = 1 - number of the driver function
1225
  * edx = pointer to 512-bytes buffer
114 mikedld 1226
Returned value:
118 diamond 1227
  * if driver is not loaded
1228
    (never happens in the current implementation):
114 mikedld 1229
    * eax = -1
118 diamond 1230
    * ebx, ecx destroyed
1231
  * if driver is loaded:
1232
    * eax = 'MDAZ' (in fasm style, that is 'M' - low byte, 'Z' - high)
1233
      - signature
1234
    * ebx = current frequency of the scanning (in Hz)
1235
    * ecx destroyed
1236
    * buffer pointed to by edx is filled
114 mikedld 1237
Format of the buffer:
118 diamond 1238
  * +0: 32*byte: driver name, "Trans VideoDriver"
1239
    (without quotes, supplemented by spaces)
1240
  * +32 = +0x20: dword: driver version (version x.y is encoded as
1241
    y*65536+x), for the current implementation is 1 (1.0)
1242
  * +36 = +0x24: 7*dword: reserved (0 in the current implementation)
1243
  * +64 = +0x40: 32*word: list of supported videomodes (each word
1244
    is number of a videomode, after list itself there are zeroes)
1245
  * +128 = +0x80: 32*(5*word): list of supported frequences of the
1246
    scannings for videomodes: for each videomode listed in the
1247
    previous field up to 5 supported frequences are given
1248
    (unused positions contain zeroes)
114 mikedld 1249
Remarks:
118 diamond 1250
  * Function initializes the driver (if it is not initialized yet)
1251
    and must be called first, before others (otherwise they will do
1252
    nothing and return -1).
1253
  * The current implementation supports only one frequency
1254
    of the scanning on videomode.
114 mikedld 1255
 
1256
======================================================================
118 diamond 1257
============ Function 21, subfunction 13, subsubfunction 2 ===========
1258
================ Get information on current videomode. ===============
114 mikedld 1259
======================================================================
1260
Parameters:
118 diamond 1261
  * eax = 21 - function number
1262
  * ebx = 13 - subfunction number
1263
  * ecx = 2 - number of the driver function
114 mikedld 1264
Returned value:
118 diamond 1265
  * eax = -1 - driver is not loaded or not initialized;
1266
    ebx,ecx are destroyed
114 mikedld 1267
  * eax = [width]*65536 + [height]
118 diamond 1268
  * ebx = frequency of the vertical scanning (in Hz)
114 mikedld 1269
  * ecx = number of current videomode
1270
Remarks:
2971 Serge 1271
  * Driver must be initialized by call to
118 diamond 1272
    driver function 1.
1273
  * If only screen sizes are required, it is more expedient to use
1274
    function 14 taking into account that it
1275
    returns sizes on 1 less.
114 mikedld 1276
 
1277
======================================================================
118 diamond 1278
=== Function 21, subfunction 13, subsubfunction 3 - set videomode. ===
114 mikedld 1279
======================================================================
1280
Parameters:
118 diamond 1281
  * eax = 21 - function number
1282
  * ebx = 13 - subfunction number
1283
  * ecx = 3 - number of the driver function
1284
  * edx = [scanning frequency]*65536 + [videomode number]
114 mikedld 1285
Returned value:
118 diamond 1286
  * eax = -1 - driver is not loaded, not initialized or
1287
    an error has occured
1288
  * eax = 0 - success
1289
  * ebx, ecx destroyed
114 mikedld 1290
Remarks:
118 diamond 1291
  * Driver must be initialized by driver function 1.
1292
  * The videomode number and frequency must be in the table
1293
    returned by driver function 1.
114 mikedld 1294
 
1295
======================================================================
118 diamond 1296
============ Function 21, subfunction 13, subsubfunction 4 ===========
1297
================== Return to the initial videomode. ==================
114 mikedld 1298
======================================================================
118 diamond 1299
Returns the screen to the videomode set at system boot.
114 mikedld 1300
Parameters:
118 diamond 1301
  * eax = 21 - function number
1302
  * ebx = 13 - subfunction number
1303
  * ecx = 4 - number of the driver function
114 mikedld 1304
Returned value:
118 diamond 1305
  * eax = -1 - driver is not loaded or not initialized
1306
  * eax = 0 - success
1307
  * ebx, ecx destroyed
114 mikedld 1308
Remarks:
118 diamond 1309
  * Driver must be initialized by call to driver function 1.
114 mikedld 1310
 
118 diamond 1311
======================================================================
1312
============ Function 21, subfunction 13, subsubfunction 5 ===========
1313
===== Increase/decrease the size of the visible area of monitor. =====
1314
======================================================================
114 mikedld 1315
Parameters:
118 diamond 1316
  * eax = 21 - function number
1317
  * ebx = 13 - subfunction number
1318
  * ecx = 5 - number of the driver function
1319
  * edx = 0/1 - decrease/increase horizontal size on 1 position
1320
  * edx = 2/3 - is not supported in the current implementation;
1321
    is planned as decrease/increase vertical size on 1 position
114 mikedld 1322
Returned value:
118 diamond 1323
  * eax = -1 - driver is not loaded or not initialized
1324
  * eax = 0 - success
1325
  * ebx, ecx destroyed
114 mikedld 1326
Remarks:
118 diamond 1327
  * Driver must be initialized by call to driver function 1.
1328
  * Function influences only the physical size of the screen image;
1329
    the logical size (number of pixels) does not change.
114 mikedld 1330
 
1331
======================================================================
118 diamond 1332
================= Function 22 - set system date/time. ================
114 mikedld 1333
======================================================================
1334
Parameters:
118 diamond 1335
  * eax = 22 - function number
1336
  * ebx = 0 - set time
1337
    * ecx = 0x00SSMMHH - time in the binary-decimal code (BCD):
114 mikedld 1338
    * HH=hour 00..23
1339
    * MM=minute 00..59
1340
    * SS=second 00..59
118 diamond 1341
  * ebx = 1 - set date
1342
    * ecx = 0x00DDMMYY - date in the binary-decimal code (BCD):
114 mikedld 1343
    * DD=day 01..31
1344
    * MM=month 01..12
1345
    * YY=year 00..99
118 diamond 1346
  * ebx = 2 - set day of week
114 mikedld 1347
    * ecx = 1 for Sunday, ..., 7 for Saturday
118 diamond 1348
  * ebx = 3 - set alarm clock
114 mikedld 1349
    * ecx = 0x00SSMMHH
1350
Returned value:
118 diamond 1351
  * eax = 0 - success
1352
  * eax = 1 - incorrect parameter
114 mikedld 1353
  * eax = 2 - CMOS-battery was unloaded
1354
Remarks:
118 diamond 1355
  * Value of installation of day of week seems to be doubtful,
1356
    as it a little where is used
1357
    (day of week can be calculated by date).
1358
  * Alarm clock can be set on operation in the given time every day.
1359
    But there is no existing system function to disable it.
1360
  * Operation of alarm clock consists in generation IRQ8.
1361
  * Generally CMOS supports for alarm clock set of value 0xFF
1362
    as one of parameters and it means that the appropriate parameter
1363
    is ignored. But current implementation does not allow this
1364
    (will return 1).
1365
  * Alarm clock is a global system resource; the set of
1366
    an alarm clock cancels automatically the previous set.
1367
    However, at moment no program uses it.
114 mikedld 1368
 
1369
======================================================================
118 diamond 1370
============= Function 23 - wait for event with timeout. =============
114 mikedld 1371
======================================================================
118 diamond 1372
If the message queue is empty, waits for new message in the queue,
1373
but no more than given time. Then reads out a message from the queue.
114 mikedld 1374
 
1375
Parameters:
118 diamond 1376
  * eax = 23 - function number
114 mikedld 1377
  * ebx = timeout (in 1/100 of second)
1378
Returned value:
118 diamond 1379
  * eax = 0 - the message queue is empty
1380
  * otherwise eax = event (see the list of events)
114 mikedld 1381
Remarks:
118 diamond 1382
  * Only those events are taken into account, which enter into
1383
    the mask set by function 40. By default it is
1384
    redraw, key and button events.
1385
  * To check for presence of a message in the queue use function 11.
1386
    To wait without timeout use function 10.
1387
  * Transmission ebx=0 results in immediate returning eax=0.
1388
  * Current implementation returns immediately with eax=0,
1389
    if the addition of ebx with the current value of time counter
1390
    makes 32-bit overflow.
114 mikedld 1391
 
1392
======================================================================
118 diamond 1393
======== Function 24, subfunction 1 - begin to play CD-audio. ========
114 mikedld 1394
======================================================================
1395
Parameters:
118 diamond 1396
  * eax = 24 - function number
1397
  * ebx = 1 - subfunction number
114 mikedld 1398
  * ecx = 0x00FRSSMM, where
118 diamond 1399
    * MM = starting minute
1400
    * SS = starting second
1401
    * FR = starting frame
114 mikedld 1402
Returned value:
118 diamond 1403
  * eax = 0 - success
1404
  * eax = 1 - CD base is not defined
114 mikedld 1405
Remarks:
2971 Serge 1406
  * Previously CD base must be defined by the call to
118 diamond 1407
    subfunction 3 of function 21.
1408
  * One second includes 75 frames, one minute includes 60 seconds.
1409
  * The function is asynchronous (returns control, when play begins).
114 mikedld 1410
 
1411
======================================================================
118 diamond 1412
======= Function 24, subfunction 2 - get information on tracks. ======
114 mikedld 1413
======================================================================
1414
Parameters:
118 diamond 1415
  * eax = 24 - function number
1416
  * ebx = 2 - subfunction number
1417
  * ecx = pointer to the buffer for the table
1418
    (maximum 8*64h+4 bytes=100 tracks)
114 mikedld 1419
Returned value:
118 diamond 1420
  * eax = 0 - success
1421
  * eax = 1 - CD base is not defined
114 mikedld 1422
Remarks:
118 diamond 1423
  * The format of the table with tracks information is the same as
1424
    for ATAPI-CD command 43h (READ TOC), usual table (subcommand 00h).
1425
    Function returns addresses in MSF.
2971 Serge 1426
  * Previously CD base port must be set by call to
118 diamond 1427
    subfunction 3 of function 21.
1428
  * Function returns information only about no more than 100
1429
    first tracks. In most cases it is enough.
114 mikedld 1430
 
1431
======================================================================
118 diamond 1432
========== Function 24, subfunction 3 - stop play CD-audio. ==========
114 mikedld 1433
======================================================================
1434
Parameters:
118 diamond 1435
  * eax = 24 - function number
1436
  * ebx = 1 - subfunction number
114 mikedld 1437
Returned value:
118 diamond 1438
  * eax = 0 - success
1439
  * eax = 1 - CD base is not defined
499 diamond 1440
Remarks:
2971 Serge 1441
  * Previously CD base port must be defined by call to
118 diamond 1442
    subfunction 3 of function 21.
114 mikedld 1443
 
1444
======================================================================
641 diamond 1445
======= Function 24, subfunction 4 - eject tray of disk drive. =======
588 diamond 1446
======================================================================
1447
Parameters:
1448
  * eax = 24 - function number
1449
  * ebx = 4 - subfunction number
641 diamond 1450
  * ecx = position of CD/DVD-drive
1451
      (from 0=Primary Master to 3=Secondary Slave)
588 diamond 1452
Returned value:
641 diamond 1453
  * function does not return value
588 diamond 1454
Remarks:
1455
  * The function is supported only for ATAPI devices (CD and DVD).
641 diamond 1456
  * When the tray is being ejected,
1457
    manual control of tray is unlocked.
1458
  * When the tray is being ejected, the code clears the cache for
1459
    corresponding device.
588 diamond 1460
  * An example of usage of the function is the application CD_tray.
1461
 
1462
======================================================================
641 diamond 1463
======== Function 24, subfunction 5 - load tray of disk drive. =======
588 diamond 1464
======================================================================
1465
Parameters:
1466
  * eax = 24 - function number
1467
  * ebx = 5 - subfunction number
641 diamond 1468
  * ecx = position of CD/DVD-drive
1469
      (from 0=Primary Master to 3=Secondary Slave)
588 diamond 1470
Returned value:
641 diamond 1471
  * function does not return value
588 diamond 1472
Remarks:
1473
  * The function is supported only for ATAPI devices (CD and DVD).
1474
  * An example of usage of the function is the application CD_tray.
1475
 
1476
======================================================================
118 diamond 1477
======== Function 26, subfunction 1 - get MPU MIDI base port. ========
114 mikedld 1478
======================================================================
1479
Parameters:
118 diamond 1480
  * eax = 26 - function number
1481
  * ebx = 1 - subfunction number
114 mikedld 1482
Returned value:
118 diamond 1483
  * eax = port number
1484
Parameters:
1485
  * To set base port use subfunction 1 of function 21.
114 mikedld 1486
 
1487
======================================================================
1488
========== Function 26, subfunction 2 - get keyboard layout. =========
1489
======================================================================
118 diamond 1490
The keyboard layout is used to convert keyboard scancodes to
1491
ASCII-codes for function 2.
114 mikedld 1492
Parameters:
118 diamond 1493
  * eax = 26 - function number
1494
  * ebx = 2 - subfunction number
114 mikedld 1495
  * ecx = what layout to get:
1496
    * 1 = normal layout
118 diamond 1497
    * 2 = layout with pressed Shift
1498
    * 3 = layout with pressed Alt
1499
  * edx = pointer to the 128-bytes buffer, where the layout will be
1500
    copied
114 mikedld 1501
Returned value:
1502
  * function does not return value
118 diamond 1503
Or:
1504
  * eax = 26 - function number
1505
  * ebx = 2 - subfunction number
114 mikedld 1506
  * ecx = 9
1507
Returned value:
118 diamond 1508
  * eax = country identifier (1=eng, 2=fi, 3=ger, 4=rus)
114 mikedld 1509
Remarks:
118 diamond 1510
  * If Alt is pressed, the layout with Alt is used;
1511
    if Alt is not pressed, but Shift is pressed,
1512
    the layout with Shift is used;
1513
    if Alt and Shift are not pressed, but Ctrl is pressed, the normal
1514
    layout is used and then from the code is subtracted 0x60;
1515
    if no control key is pressed, the normal layout is used.
2971 Serge 1516
  * To set layout and country identifier use
118 diamond 1517
    subfunction 2 of function 21.
1518
  * Country identifier is global system variable, which is not used
1519
    by the kernel itself; however the application '@panel' displays
1520
    the corresponding icon (using this function).
1521
  * The application @panel switches layouts on user request.
114 mikedld 1522
 
1523
======================================================================
118 diamond 1524
============== Function 26, subfunction 3 - get CD base. =============
114 mikedld 1525
======================================================================
1526
Parameters:
118 diamond 1527
  * eax = 26 - function number
1528
  * ebx = 3 - subfunction number
114 mikedld 1529
Returned value:
118 diamond 1530
  * eax = CD base: 1=IDE0, 2=IDE1, 3=IDE2, 4=IDE3
114 mikedld 1531
Remarks:
118 diamond 1532
  * CD base is used by function 24.
1533
  * To set CD base use subfunction 3 of function 21.
114 mikedld 1534
 
1535
======================================================================
118 diamond 1536
========== Function 26, subfunction 5 - get system language. =========
114 mikedld 1537
======================================================================
1538
Parameters:
118 diamond 1539
  * eax = 26 - function number
1540
  * ebx = 5 - subfunction number
114 mikedld 1541
Returned value:
118 diamond 1542
  * eax = system language (1=eng, 2=fi, 3=ger, 4=rus)
114 mikedld 1543
Remarks:
118 diamond 1544
  * System language is global system variable and is not used
1545
    by the kernel itself, however application @panel draws the
1546
    appropriate icon (using this function).
1547
  * To set system language use subfunction 5 of function 21.
114 mikedld 1548
 
1549
======================================================================
118 diamond 1550
============== Function 26, subfunction 7 - get HD base. =============
114 mikedld 1551
======================================================================
118 diamond 1552
The HD base defines hard disk to write with usage of obsolete
346 diamond 1553
syntax /HD in obsolete function 58; at usage of modern syntax
1554
/HD0,/HD1,/HD2,/HD3 base is set automatically.
114 mikedld 1555
Parameters:
118 diamond 1556
  * eax = 26 - function number
1557
  * ebx = 7 - subfunction number
114 mikedld 1558
Returned value:
118 diamond 1559
  * eax = HD base: 1=IDE0, 2=IDE1, 3=IDE2, 4=IDE3
114 mikedld 1560
Remarks:
118 diamond 1561
  * Any application in any time can change HD base.
1562
  * To set base use subfunction 7 of function 21.
1563
  * To get used partition of hard disk use subfunction 8.
114 mikedld 1564
 
1565
======================================================================
118 diamond 1566
========= Function 26, subfunction 8 - get used HD partition. ========
114 mikedld 1567
======================================================================
118 diamond 1568
The HD partition defines partition of the hard disk to write with
346 diamond 1569
usage of obsolete syntax /HD in obsolete function 58;
118 diamond 1570
at usage of functions 58 and 70 and modern syntax /HD0,/HD1,/HD2,/HD3
346 diamond 1571
base and partition are set automatically.
114 mikedld 1572
Parameters:
118 diamond 1573
  * eax = 26 - function number
1574
  * ebx = 8 - subfunction number
114 mikedld 1575
Returned value:
118 diamond 1576
  * eax = HD partition (beginning from 1)
114 mikedld 1577
Remarks:
118 diamond 1578
  * Any application in any time can change partition.
1579
  * To set partition use subfunction 8 of function 21.
1580
  * To get number of partitions on a hard disk use
1581
    subfunction 11 of function 18.
1582
  * To get base of used hard disk, use subfunction 7.
114 mikedld 1583
 
1584
======================================================================
118 diamond 1585
=== Function 26, subfunction 9 - get the value of the time counter. ==
114 mikedld 1586
======================================================================
1587
Parameters:
118 diamond 1588
  * eax = 26 - function number
1589
  * ebx = 9 - subfunction number
114 mikedld 1590
Returned value:
118 diamond 1591
  * eax = number of 1/100s of second, past from the system boot time
114 mikedld 1592
Remarks:
118 diamond 1593
  * Counter takes modulo 2^32, that correspond to a little more
1594
    than 497 days.
1595
  * To get system time use function 3.
114 mikedld 1596
 
1597
======================================================================
118 diamond 1598
===================== Function 26, subfunction 11 ====================
1599
========== Find out whether low-level HD access is enabled. ==========
114 mikedld 1600
======================================================================
1601
Parameters:
118 diamond 1602
  * eax = 26 - function number
1603
  * ebx = 11 - subfunction number
114 mikedld 1604
Returned value:
118 diamond 1605
  * eax = 0/1 - disabled/enabled
114 mikedld 1606
Remarks:
118 diamond 1607
  * Is used in LBA read (subfunction 8 of function 58).
1608
  * To set current state use subfunction 11 of function 21.
114 mikedld 1609
 
1610
======================================================================
118 diamond 1611
===================== Function 26, subfunction 12 ====================
1612
========== Find out whether low-level PCI access is enabled. =========
114 mikedld 1613
======================================================================
1614
Parameters:
118 diamond 1615
  * eax = 26 - function number
1616
  * ebx = 12 - subfunction number
114 mikedld 1617
Returned value:
118 diamond 1618
  * eax = 0/1 - disabled/enabled
114 mikedld 1619
Remarks:
118 diamond 1620
  * Is used by operations with PCI bus (function 62).
1621
  * The current implementation uses only low bit of ecx.
1622
  * To set the current state use subfunction 12 of function 21.
114 mikedld 1623
 
1624
======================================================================
118 diamond 1625
=================== Function 29 - get system date. ===================
114 mikedld 1626
======================================================================
1627
Parameters:
118 diamond 1628
  * eax = 29 - function number
114 mikedld 1629
Returned value:
1630
  * eax = 0x00DDMMYY, where
118 diamond 1631
    (binary-decimal coding, BCD, is used)
1632
  * YY = two low digits of year (00..99)
1633
  * MM = month (01..12)
1634
  * DD = day (01..31)
114 mikedld 1635
Remarks:
118 diamond 1636
  * To set system date use function 22.
114 mikedld 1637
 
1638
======================================================================
521 diamond 1639
============= Function 30 - work with the current folder. ============
1640
======================================================================
1641
 
1642
--------- Subfunction 1 - set current folder for the thread. ---------
1643
Parameters:
1644
  * eax = 30 - function number
1645
  * ebx = 1 - subfunction number
1646
  * ecx = pointer to ASCIIZ-string with the path to new current folder
1647
Returned value:
1648
  * function does not return value
1649
 
1650
--------- Subfunction 2 - get current folder for the thread. ---------
1651
Parameters:
1652
  * eax = 30 - function number
1653
  * ebx = 2 - subfunction number
1654
  * ecx = pointer to buffer
1655
  * edx = size of buffer
1656
Returned value:
1657
  * eax = size of the current folder's name (including terminating 0)
1658
Remarks:
1659
  * If the buffer is too small to hold all data, only first (edx-1)
1660
    bytes are copied and than terminating 0 is inserted.
1661
 
1662
======================================================================
2971 Serge 1663
=============== Function 32 - delete file from ramdisk. ==============
1664
======================================================================
1665
Parameters:
1666
  * eax = 32 - function number
1667
  * ebx = pointer to the filename
1668
Returned value:
1669
  * eax = 0 - success; otherwise file system error code
1670
Remarks:
1671
  * This function is obsolete; function 58 allows to fulfill
1672
    the same operations with the extended possibilities.
1673
  * The current implementation returns only values 0(success) and
1674
    5(file not found).
1675
  * The filename must be either in the format 8+3 characters
1676
    (first 8 characters - name itself, last 3 - extension,
1677
    the short names and extensions are supplemented with spaces),
1678
    or in the format 8.3 characters "FILE.EXT"/"FILE.EX "
1679
    (name no more than 8 characters, dot, extension 3 characters
1680
    supplemented if necessary by spaces).
1681
    The filename must be written with capital letters. The terminating
1682
    character with code 0 is not necessary (not ASCIIZ-string).
1683
  * This function does not support folders on the ramdisk.
1684
 
1685
======================================================================
1686
================ Function 33 - write file to ramdisk. ================
1687
======================================================================
1688
Parameters:
1689
  * eax = 33 - function number
1690
  * ebx = pointer to the filename
1691
  * ecx = pointer to data for writing
1692
  * edx = number of bytes for writing
1693
  * should be set esi=0
1694
Returned value:
1695
  * eax = 0 - success, otherwise file system error code
1696
Remarks:
1697
  * This function is obsolete; function 70 allows to fulfil
1698
    the same operations with extended possibilities.
1699
  * If esi contains non-zero value and selected file already exists,
1700
    one more file with the same name will be created.
1701
  * Otherwise file will be overwritten.
1702
  * The filename must be either in the format 8+3 characters
1703
    (first 8 characters - name itself, last 3 - extension,
1704
    the short names and extensions are supplemented with spaces),
1705
    or in the format 8.3 characters "FILE.EXT"/"FILE.EX "
1706
    (name no more than 8 characters, dot, extension 3 characters
1707
    supplemented if necessary by spaces).
1708
    The filename must be written with capital letters. The terminating
1709
    character with code 0 is not necessary (not ASCIIZ-string).
1710
  * This function does not support folders on the ramdisk.
1711
 
1712
======================================================================
118 diamond 1713
======= Function 35 - read the color of a pixel on the screen. =======
114 mikedld 1714
======================================================================
1715
Parameters:
1716
  * eax = 35
1717
  * ebx = y*xsize+x, where
118 diamond 1718
  * (x,y) = coordinates of a pixel (beginning from 0)
1719
  * xsize = horizontal screen size
114 mikedld 1720
Returned value:
118 diamond 1721
  * eax = color 0x00RRGGBB
114 mikedld 1722
Remarks:
118 diamond 1723
  * To get screen sizes use function 14. Pay attention,
1724
    that it subtracts 1 from both sizes.
1725
  * There is also direct access (without any system calls)
1726
    to videomemory through the selector gs. To get parameters of
1727
    the current videomode, use function 61.
114 mikedld 1728
 
1729
======================================================================
2971 Serge 1730
=================== Function 36 - read screen area. ==================
1731
======================================================================
1732
Paramters:
1733
  * eax = 36 - function number
1734
  * ebx = pointer to the previously allocated memory area,
1735
        where will be placed the image in the format BBGGRRBBGGRR...
1736
  * ecx = [size on axis x]*65536 + [size on axis y]
1737
  * edx = [coordinate on axis x]*65536 + [coordinate on axis y]
1738
Returned value:
1739
  * function does not return value
1740
Remarks:
1741
  * Coordinates of the image are coordinates of the upper left corner
1742
    of the image relative to the screen.
1743
  * Size of the image in bytes is 3*xsize*ysize.
1744
 
1745
======================================================================
277 diamond 1746
=================== Function 37 - work with mouse. ===================
114 mikedld 1747
======================================================================
1748
 
118 diamond 1749
---------- Subfunction 0 - screen coordinates of the mouse -----------
114 mikedld 1750
Parameters:
118 diamond 1751
  * eax = 37 - function number
1752
  * ebx = 0 - subfunction number
114 mikedld 1753
Returned value:
118 diamond 1754
  * eax = x*65536 + y, (x,y)=coordinates of the mouse pointer
1755
    (beginning from 0)
114 mikedld 1756
 
118 diamond 1757
-- Subfunction 1 - coordinates of the mouse relative to the window ---
114 mikedld 1758
Parameters:
118 diamond 1759
  * eax = 37 - function number
1760
  * ebx = 1 - subfunction number
114 mikedld 1761
Returned value:
118 diamond 1762
  * eax = x*65536 + y, (x,y)=coordinates of the mouse pointer
1763
    relative to the application window (beginning from 0)
114 mikedld 1764
Remarks:
118 diamond 1765
  * The value is calculated by formula (x-xwnd)*65536 + (y-ywnd).
1766
    If y>=ywnd, the low word is non-negative and contains
1767
    relative y-coordinate, and the high word - relative x-coordinate
1768
    (with correct sign). Otherwise the low word is negative and still
1769
    contains relative y-coordinate, and to the high word
1770
    1 should be added.
114 mikedld 1771
 
118 diamond 1772
------------ Subfunction 2 - pressed buttons of the mouse ------------
114 mikedld 1773
Parameters:
118 diamond 1774
  * eax = 37 - function number
1775
  * ebx = 2 - subfunction number
114 mikedld 1776
Returned value:
118 diamond 1777
  * eax contains information on the pressed mouse buttons:
1778
  * bit 0 is set = left button is pressed
1779
  * bit 1 is set = right button is pressed
486 kastigar 1780
  * bit 2 is set = middle button is pressed
1781
  * bit 3 is set = 4th button is pressed
1782
  * bit 4 is set = 5th button is pressed
118 diamond 1783
  * other bits are cleared
114 mikedld 1784
 
277 diamond 1785
-------------------- Subfunction 4 - load cursor ---------------------
1786
Parameters:
1787
  * eax = 37 - function number
1788
  * ebx = 4 - subfunction number
1789
  * dx = data source:
1790
  * dx = LOAD_FROM_FILE = 0 - data in a file
1791
    * ecx = pointer to full path to the cursor file
1792
    * the file must be in the format .cur, which is standard for
1793
      MS Windows, at that of the size 32*32 pixels
1794
  * dx = LOAD_FROM_MEM = 1 - data of file are already loaded in memory
1795
    * ecx = pointer to data of the cursor file
1796
    * the data format is the same as in the previous case
1797
  * dx = LOAD_INDIRECT = 2 - data in memory
1798
    * ecx = pointer to cursor image in the format ARGB 32*32 pixels
1799
    * edx = 0xXXYY0002, where
1800
      * XX = x-coordinate of cursor hotspot
1801
      * YY = y-coordinate
1802
      * 0 <= XX, YY <= 31
1803
Returned value:
1804
  * eax = 0 - failed
1805
  * otherwise eax = cursor handle
1806
 
1807
--------------------- Subfunction 5 - set cursor ---------------------
1808
Sets new cursor for the window of the current thread.
1809
Parameters:
1810
  * eax = 37 - function number
1811
  * ebx = 5 - subfunction number
1812
  * ecx = cursor handle
1813
Returned value:
1814
  * eax = handle of previous cursor
1815
Remarks:
1816
  * If the handle is incorrect, the function restores the default
1817
    cursor (standard arrow). In particular, ecx=0 restores it.
1818
 
1819
------------------- Subfunction 6 - delete cursor --------------------
1820
Parameters:
1821
  * eax = 37 - function number
1822
  * ebx = 6 - subfunction number
1823
  * ecx = cursor handle
1824
Returned value:
1825
  * eax destroyed
1826
Remarks:
1827
  * The cursor must be loaded previously by the current thread
1828
    (with the call to subfunction 4). The function does not delete
1829
    system cursors and cursors, loaded by another applications.
1830
  * If the active cursor (set by subfunction 5) is deleted,
1831
    the system restores the default cursor (standard arrow).
1832
 
499 diamond 1833
------------------ Subfunction 7 - get scroll data -------------------
486 kastigar 1834
Parameters:
1835
  * eax = 37 - function number
1836
  * ebx = 7 - subfunction number
1837
Returned value:
499 diamond 1838
  * eax = [horizontal offset]*65536 + [vertical offset]
486 kastigar 1839
Remarks:
499 diamond 1840
  * Scroll data is available for active window only.
1841
  * Values are zeroed after reading.
1842
  * Values are signed.
486 kastigar 1843
 
114 mikedld 1844
======================================================================
1845
====================== Function 38 - draw line. ======================
1846
======================================================================
1847
Parameters:
118 diamond 1848
  * eax = 38 - function number
1849
  * ebx = [start coordinate on axis x]*65536 +
1850
              [end coordinate on axis x]
1851
  * ecx = [start coordinate on axis y]*65536 +
1852
              [end coordinate on axis y]
1853
  * edx = 0x00RRGGBB - color
133 diamond 1854
    edx = 0x01xxxxxx - draw inversed line
1855
          (low 24 bits are ignored)
114 mikedld 1856
Returned value:
1857
  * function does not return value
1858
Remarks:
118 diamond 1859
  * Coordinates are relative to the window.
1860
  * End point is also drawn.
114 mikedld 1861
 
1862
======================================================================
118 diamond 1863
== Function 39, subfunction 1 - get a size of the background image. ==
114 mikedld 1864
======================================================================
1865
Parameters:
118 diamond 1866
  * eax = 39 - function number
1867
  * ebx = 1 - subfunction number
114 mikedld 1868
Returned value:
1869
  * eax = [width]*65536 + [height]
1870
Remarks:
118 diamond 1871
  * There is a pair function to set sizes of background image -
1872
    subfunction 1 of function 15. After which it is necessary,
1873
    of course, anew to define image.
114 mikedld 1874
 
1875
======================================================================
118 diamond 1876
== Function 39, subfunction 2 - get pixel from the background image. =
114 mikedld 1877
======================================================================
1878
Parameters:
118 diamond 1879
  * eax = 39 - function number
1880
  * ebx = 2 - subfunction number
114 mikedld 1881
  * ecx = offset
1882
Returned value:
118 diamond 1883
  * eax = 0x00RRGGBB - pixel color, if offset is valid
1884
    (less than 0x160000-16)
1885
  * eax = 2 otherwise
114 mikedld 1886
Remarks:
118 diamond 1887
  * Do not rely on returned value for invalid offsets, it may be
1888
    changed in future kernel versions.
1889
  * Offset for pixel with coordinates (x,y)
1890
    is calculated as (x+y*xsize)*3.
2971 Serge 1891
  * There is a pair function to set pixel on the background image -
118 diamond 1892
    subfunction 2 of function 15.
114 mikedld 1893
 
1894
======================================================================
118 diamond 1895
== Function 39, subfunction 4 - get drawing mode for the background. =
114 mikedld 1896
======================================================================
1897
Parameters:
118 diamond 1898
  * eax = 39 - function number
1899
  * ebx = 4 - subfunction number
114 mikedld 1900
Returned value:
118 diamond 1901
  * eax = 1 - tile
1902
  * eax = 2 - stretch
114 mikedld 1903
Remarks:
2971 Serge 1904
  * There is a pair function to set drawing mode -
118 diamond 1905
    subfunction 4 of function 15.
114 mikedld 1906
 
1907
======================================================================
118 diamond 1908
=========== Function 40 - set the mask for expected events. ==========
114 mikedld 1909
======================================================================
118 diamond 1910
The mask for expected events affects function working with events
1911
10, 11, 23 - they notify only about events allowed by this mask.
114 mikedld 1912
Parameters:
118 diamond 1913
  * eax = 40 - function number
114 mikedld 1914
  * ebx = mask: bit i corresponds to event i+1 (see list of events)
118 diamond 1915
    (set bit permits notice on event)
114 mikedld 1916
Returned value:
1917
  * function does not return value
1918
Remarks:
118 diamond 1919
  * Default mask (7=111b) enables nofices about redraw,
1920
    keys and buttons. This is enough for many applications.
1921
  * Events prohibited in the mask are saved anyway, when come;
1922
    they are simply not informed with event functions.
1923
  * Event functions take into account the mask on moment of
1924
    function call, not on moment of event arrival.
114 mikedld 1925
 
1926
======================================================================
118 diamond 1927
==================== Function 41 - get IRQ owner. ====================
114 mikedld 1928
======================================================================
1929
Parameters:
118 diamond 1930
  * eax = 41 - function number
1931
  * ebx = IRQ number, 0..15
114 mikedld 1932
Returned value:
118 diamond 1933
  * eax = owner PID
1934
  * eax = 0, if there is no owner
114 mikedld 1935
  * eax = -1 for incorrect ebx
1936
 
1937
======================================================================
2971 Serge 1938
================== Function 42 - work with IRQ data. =================
114 mikedld 1939
======================================================================
118 diamond 1940
When an IRQ occurs, the system reads data from ports indicated
1941
earlier by function 44 and writes this data to
2971 Serge 1942
internal buffer. This function reads out data from that buffer.
1943
 
1944
--------------------- Subfunction 0 - read data ----------------------
114 mikedld 1945
Parameters:
118 diamond 1946
  * eax = 42 - function number
760 Rus 1947
  * bl = IRQ number, 0..15
2971 Serge 1948
  * bh = 0 - subfunction number
1949
  * rest of ebx must be zeroed
1950
  * ecx = pointer to a buffer with size not less than 4000 bytes
760 Rus 1951
Returned value: (use value of eax to distinguish)
2971 Serge 1952
  * if the thread is not IRQ owner
1953
    (or IRQ number is incorrect): eax = -1
1954
  * if there is no data: eax = 0
118 diamond 1955
  * if all is ok:
2971 Serge 1956
    eax = size of data read (in bytes)
760 Rus 1957
 
2971 Serge 1958
------------- Subfunction 1 - get size of data in buffer -------------
760 Rus 1959
Parameters:
1960
  * eax = 42 - function number
1961
  * bl = IRQ number, 0..15
2971 Serge 1962
  * bh = 0 - subfunction number
1963
  * rest of ebx must be zeroed
1964
Returned value:
1965
  * if the thread is not IRQ owner
1966
    (or IRQ number is incorrect): eax = -1
1967
  * otherwise eax = size of data in buffer
114 mikedld 1968
Remarks:
118 diamond 1969
  * Previously the thread must reserve indicated IRQ for itself
1970
    by function 45.
1971
  * The size of data buffer is 4000 bytes, on overflow
1972
    "fresh" data cease to be written in the buffer.
114 mikedld 1973
 
1974
======================================================================
118 diamond 1975
================ Function 43 - input/output to a port. ===============
114 mikedld 1976
======================================================================
1977
 
118 diamond 1978
------------------------ Output data to port -------------------------
114 mikedld 1979
Parameters:
118 diamond 1980
  * eax = 43 - function number
114 mikedld 1981
  * bl = byte for output
118 diamond 1982
  * ecx = port number 0xnnnn (from 0 to 0xFFFF)
114 mikedld 1983
Returned value:
118 diamond 1984
  * eax = 0 - success
1985
  * eax = 1 - the thread has not reserved the selected port
114 mikedld 1986
 
118 diamond 1987
------------------------ Input data from port ------------------------
114 mikedld 1988
Parameters:
118 diamond 1989
  * eax = 43 - function number
1990
  * ebx is ignored
1991
  * ecx = 0x8000nnnn, where nnnn = port number (from 0 to 0xFFFF)
114 mikedld 1992
Returned value:
118 diamond 1993
  * eax = 0 - success, thus ebx = entered byte
1994
  * eax = 1 - the thread has not reserved the selected port
114 mikedld 1995
Remarks:
118 diamond 1996
  * Previously the thread must reserve the selected port
1997
    for itself by function 46.
1998
  * Instead of call to this function it is better to use
1999
    processor instructions in/out - this is much
2000
    faster and a bit shorter and easier.
114 mikedld 2001
 
2002
======================================================================
118 diamond 2003
=========== Function 44 - define operations at IRQ arrival. ==========
114 mikedld 2004
======================================================================
118 diamond 2005
At IRQ arrival the system can read the data from ports defined
2006
by this function and write these data to internal buffer, whence
2007
they can be read by функцией 42.
114 mikedld 2008
Parameters:
118 diamond 2009
  * eax = 44 - function number
2010
  * ebx = pointer to the array of structures each describing one port:
2011
    * +0: word: 0 means end of array, otherwise port number
114 mikedld 2012
    * +2: byte: reserved (ignored)
118 diamond 2013
    * +3: byte: 1=read byte from this port, 2=read word
2014
  * ecx = IRQ number, 0..15
114 mikedld 2015
Returned value:
118 diamond 2016
  * eax = 0 - success
2017
  * eax = 1 - the thread is not owner of selected IRQ
114 mikedld 2018
Remarks:
118 diamond 2019
  * Previously the thread must reserve for itself selected IRQ
2020
    by function 45.
114 mikedld 2021
  * First 16 ports are considered only.
118 diamond 2022
  * The current implementation considers incorrect value of field +3
2023
    as a signal to terminate IRQ processing.
114 mikedld 2024
 
2025
======================================================================
118 diamond 2026
=================== Function 45 - reserve/free IRQ. ==================
114 mikedld 2027
======================================================================
2028
Parameters:
118 diamond 2029
  * eax = 45 - function number
114 mikedld 2030
  * ebx = 0 - reserve, 1 = free
118 diamond 2031
  * ecx = IRQ number, 0..15
114 mikedld 2032
Returned value:
118 diamond 2033
  * eax = 0 - success
2034
  * eax = 1 - error (invalid IRQ number
2035
    or attempt to reserve not free IRQ
2036
    or to free IRQ, not reserved by this thread)
114 mikedld 2037
Remarks:
118 diamond 2038
  * IRQ reservation is required for functions 42 and 44.
2039
  * Only one thread can reserve the specific IRQ.
2040
  * IRQs, handled by the system itself, are reserved by the system
2041
    (thread 1) at booting.
2042
  * When a thread terminates, all reserved by it IRQs
2043
    are freed automatically.
114 mikedld 2044
 
2045
======================================================================
118 diamond 2046
====== Function 46 - reserve/free a group of input/output ports. =====
114 mikedld 2047
======================================================================
118 diamond 2048
To work with reserved ports an application can access directly by
2049
commands in/out (recommended way) and can use function 43
2050
(not recommended way).
114 mikedld 2051
Parameters:
118 diamond 2052
  * eax = 46 - function number
114 mikedld 2053
  * ebx = 0 - reserve, 1 - free
118 diamond 2054
  * ecx = start port number
2055
  * edx = end port number (inclusive)
114 mikedld 2056
Returned value:
118 diamond 2057
  * eax = 0 - success
114 mikedld 2058
  * eax = 1 - error
2059
Remarks:
118 diamond 2060
  * For ports reservation: an error occurs if and only if
2061
    one from the following condition satisfies:
2062
    * start port is more than end port;
2063
    * the selected range contains incorrect port number
2064
      (correct are from 0 to 0xFFFF);
2065
    * limit for the total number of reserved areas is exceeded
2066
      (maximum 255 are allowed);
2067
    * the selected range intersects with any of earlier reserved
2068
  * For ports free: an error is an attempt to free range,
2069
    that was not earlier reserved by this function
2070
    (with same ecx,edx).
2071
  * If an error occurs (for both cases) function performs no action.
277 diamond 2072
  * At booting the system reserves for itself ports
2073
    0..0x2d, 0x30..0x4d, 0x50..0xdf, 0xe5..0xff (inclusively).
118 diamond 2074
  * When a thread terminates, all reserved by it ports
2075
    are freed automatically.
114 mikedld 2076
 
2077
======================================================================
118 diamond 2078
============= Function 47 - draw a number in the window. =============
114 mikedld 2079
======================================================================
2080
Parameters:
118 diamond 2081
  * eax = 47 - function number
2082
  * ebx = parameters of conversion number to text:
114 mikedld 2083
    * bl = 0 - ecx contains number
665 diamond 2084
    * bl = 1 - ecx contains pointer to dword/qword-number
118 diamond 2085
    * bh = 0 - display in decimal number system
2086
    * bh = 1 - display in hexadecimal system
2087
    * bh = 2 - display in binary system
499 diamond 2088
    * bits 16-21 = how many digits to display
655 mario79 2089
    * bits 22-29 reserved and must be set to 0
665 diamond 2090
    * bit 30 set = display qword (64-bit) number (must be bl=1)
2091
    * bit 31 set = do not display leading zeroes of the number
118 diamond 2092
  * ecx = number (if bl=0) or pointer (if bl=1)
114 mikedld 2093
  * edx = [coordinate on axis x]*65536 + [coordinate on axis y]
139 diamond 2094
  * esi = 0xX0RRGGBB:
2095
    * RR, GG, BB specify the color
2096
    * X = ABnn (bits)
2097
    * nn = font (0/1)
2098
    * A is ignored
2099
    * B=1 - fill background with the color edi
114 mikedld 2100
Returned value:
2101
  * function does not return value
2102
Remarks:
118 diamond 2103
  * The given length must not exceed 60.
2104
  * The exactly given amount of digits is output. If number is small
2105
    and can be written by smaller amount of digits, it is supplemented
2106
    by leading zeroes; if the number is big and can not be written by
2107
    given amount of digits, extra digits are not drawn.
2108
  * Parameters of fonts are shown in the description of function 4
2109
    (text output).
114 mikedld 2110
 
2111
======================================================================
118 diamond 2112
========= Function 48, subfunction 0 - apply screen settings. ========
114 mikedld 2113
======================================================================
2114
Parameters:
118 diamond 2115
  * eax = 48 - function number
2116
  * ebx = 0 - subfunction number
114 mikedld 2117
  * ecx = 0 - reserved
2118
Returned value:
2119
  * function does not return value
2120
Remarks:
118 diamond 2121
  * Function redraws the screen after parameters change by
114 mikedld 2122
    subfunctions 1 and 2.
118 diamond 2123
  * Function call without prior call to one of indicated subfunctions
2124
    is ignored.
2125
  * Function call with nonzero ecx is ignored.
114 mikedld 2126
 
2127
======================================================================
118 diamond 2128
=========== Function 48, subfunction 1 - set button style. ===========
114 mikedld 2129
======================================================================
2130
Parameters:
118 diamond 2131
  * eax = 48 - function number
2132
  * ebx = 1 - subfunction number
2133
  * ecx = button style:
2134
    * 0 = flat
2135
    * 1 = 3d
114 mikedld 2136
Returned value:
2137
  * function does not return value
2138
Remarks:
118 diamond 2139
  * After call to this function one should redraw the screen by
2140
    subfunction 0.
2141
  * Button style influences only to their draw of function 8.
114 mikedld 2142
 
118 diamond 2143
======================================================================
2144
====== Function 48, subfunction 2 - set standard window colors. ======
2145
======================================================================
114 mikedld 2146
Parameters:
118 diamond 2147
  * eax = 48 - function number
2148
  * ebx = 2 - subfunction number
2149
  * ecx = pointer to the color table
114 mikedld 2150
  * edx = size of the color table
118 diamond 2151
    (must be 40 bytes for future compatibility)
2152
Format of the color table is shown in description of subfunction 3.
114 mikedld 2153
Returned value:
2154
  * function does not return value
2155
Remarks:
118 diamond 2156
  * After call to this function one should redraw the screen by
2157
    subfunction 0.
2158
  * Table of standard colors influences only to applications,
2159
    which receive this table obviously (by subfunction 3)
2160
    and use it (specifying colors from it to drawing functions).
2161
  * Table of standard colors is included in skin and is installed
2162
    anew with skin installation (by subfunction 8).
2163
  * Color table can be viewed/changed interactively with
2164
    the application 'desktop'.
114 mikedld 2165
 
2166
======================================================================
118 diamond 2167
====== Function 48, subfunction 3 - get standard window colors. ======
114 mikedld 2168
======================================================================
2169
Parameters:
118 diamond 2170
  * eax = 48 - function number
2171
  * ebx = 3 - subfunction number
2172
  * ecx = pointer to the buffer with size edx bytes,
2173
    where table will be written
2174
  * edx = size of color table
2175
    (must be 40 bytes for future compatibility)
114 mikedld 2176
Returned value:
2177
  * function does not return value
118 diamond 2178
Format of the color table:
2179
each item is dword-value for color 0x00RRGGBB
2180
  * +0: dword: frames - color of frame
2181
  * +4: dword: grab - color of header
2182
  * +8: dword: grab_button - color of button on header bar
2183
  * +12 = +0xC: dword: grab_button_text - color of text on button
2184
    on header bar
2185
  * +16 = +0x10: dword: grab_text - color of text on header
2186
  * +20 = +0x14: dword: work - color of working area
2187
  * +24 = +0x18: dword: work_button - color of button in working area
2188
  * +28 = +0x1C: dword: work_button_text - color of text on button
2189
    in working area
2190
  * +32 = +0x20: dword: work_text - color of text in working area
2191
  * +36 = +0x24: dword: work_graph - color of graphics in working area
114 mikedld 2192
Remarks:
118 diamond 2193
  * Structure of the color table is described in the standard
2194
    include file 'macros.inc' as 'system_colors'; for example,
2195
    it is possible to write:
2971 Serge 2196
        sc      system_colors           ; variable declaration
2197
        ...                             ; somewhere one must call
2198
                                        ; this function with ecx=sc
2199
        mov     ecx, [sc.work_button_text]      ; read text color on
2200
                                        ; buttin in working area
118 diamond 2201
  * A program itself desides to use or not to use color table.
2202
    For usage program must simply at calls to drawing functions select
2203
    color taken from the table.
2204
  * At change of the table of standard colors (by subfunction 2 with
2205
    the subsequent application of changes by subfunction 0 or
2206
    at skin set by subfunction 8) the system sends to all windows
2207
    redraw message (the event with code 1).
2208
  * Color table can be viewed/changed interactively with
2209
    the application 'desktop'.
114 mikedld 2210
 
2211
======================================================================
118 diamond 2212
============ Function 48, subfunction 4 - get skin height. ===========
114 mikedld 2213
======================================================================
2214
Parameters:
118 diamond 2215
  * eax = 48 - function number
2216
  * ebx = 4 - subfunction number
114 mikedld 2217
Returned value:
118 diamond 2218
  * eax = skin height
114 mikedld 2219
Remarks:
118 diamond 2220
  * Skin height is defined as the height of a header
2221
    of skinned windows.
2222
  * See also general structure of window in the description
2223
    of function 0.
114 mikedld 2224
 
2225
======================================================================
118 diamond 2226
======== Function 48, subfunction 5 - get screen working area. =======
114 mikedld 2227
======================================================================
2228
Parameters:
118 diamond 2229
  * eax = 48 - function number
2230
  * ebx = 5 - subfunction number
114 mikedld 2231
Returned value:
2232
  * eax = [left]*65536 + [right]
2233
  * ebx = [top]*65536 + [bottom]
2234
Remarks:
118 diamond 2235
  * The screen working area defines position and coordinates of
2236
    a maximized window.
2237
  * The screen working area in view of normal work is all screen
2238
    without system panel (the application '@panel').
2239
  * (left,top) are coordinates of the left upper corner,
2240
    (right,bottom) are coordinates of the right lower one.
2241
    Thus the size of working area on x axis can be calculated by
2242
    formula right-left+1, on y axis - by formula bottom-right+1.
2243
  * See also function 14,
2244
    to get sizes of all screen.
2245
  * There is a pair function to set working area - subfunction 6.
114 mikedld 2246
 
2247
======================================================================
118 diamond 2248
======== Function 48, subfunction 6 - set screen working area. =======
114 mikedld 2249
======================================================================
2250
Parameters:
118 diamond 2251
  * eax = 48 - function number
2252
  * ebx = 6 - subfunction number
114 mikedld 2253
  * ecx = [left]*65536 + [right]
2254
  * edx = [top]*65536 + [bottom]
2255
Returned value:
2256
  * function does not return value
2257
Remarks:
118 diamond 2258
  * The screen working area defines position and coordinates of
2259
    a maximized window.
2260
  * This function is used only by the application '@panel',
2261
    which set working area to all screen without system panel.
2262
  * (left,top) are coordinates of the left upper corner,
2263
    (right,bottom) are coordinates of the right lower one.
2264
    Thus the size of working area on x axis can be calculated by
2265
    formula right-left+1, on y axis - by formula bottom-right+1.
2266
  * If 'left'>='right', x-coordinate of working area is not changed.
2267
    If 'left'<0, 'left' will not be set. If 'right' is greater than or
2268
    equal to screen width, 'right' will not be set.
2269
    Similarly on y axis.
2270
  * See also function 14,
2271
    to get sizes of all screen.
2272
  * There is a pair function to get working area - subfunction 5.
2273
  * This function redraws the screen automatically,
2274
    updating coordinates and sizes of maximized windows.
2275
    The system sends to all windows redraw message (the event 1).
114 mikedld 2276
 
2277
======================================================================
118 diamond 2278
=========== Function 48, subfunction 7 - get skin margins. ===========
114 mikedld 2279
======================================================================
118 diamond 2280
Returns the area of a header of a skinned window, intended for
2281
a text of a header.
114 mikedld 2282
Parameters:
118 diamond 2283
  * eax = 48 - function number
2284
  * ebx = 7 - subfunction number
114 mikedld 2285
Returned value:
2286
  * eax = [left]*65536 + [right]
2287
  * ebx = [top]*65536 + [bottom]
2288
Remarks:
118 diamond 2289
  * An application decides itself to use or not to use this function.
2290
  * It is recommended to take into account returned value
2291
    of this function for choice of a place for drawing header text
2292
    (by function 4) or a substitute of header text
2293
    (at the discretion of an application).
114 mikedld 2294
 
2295
======================================================================
118 diamond 2296
============= Function 48, subfunction 8 - set used skin. ============
114 mikedld 2297
======================================================================
2298
Parameters:
118 diamond 2299
  * eax = 48 - function number
2300
  * ebx = 8 - subfunction number
2301
  * ecx = pointer to a block for function 58, in
2302
    which the fields of intermediate buffer and file name are filled
114 mikedld 2303
Returned value:
118 diamond 2304
  * eax = 0 - success
2305
  * otherwise eax = file system error code; if file does not
2306
    contain valid skin, function returns error 3
2307
    (unknown file system).
114 mikedld 2308
Remarks:
118 diamond 2309
  * After successful skin loading the system sends to all windows
2310
    redraw message (the event 1).
2311
  * At booting the system reads skin from file 'default.skn'
2312
    on ramdisk.
2313
  * User can change the skin statically by creating hisself
2314
    'default.skn' or dynamically with the application 'desktop'.
114 mikedld 2315
 
2316
======================================================================
118 diamond 2317
=========== Function 49 - Advanced Power Management (APM). ===========
114 mikedld 2318
======================================================================
2319
Parameters:
118 diamond 2320
  * eax = 49 - function number
2321
  * dx = number of the APM function
2322
    (analogue of ax in APM specification)
2323
  * bx, cx = parameters of the APM function
114 mikedld 2324
Returned value:
118 diamond 2325
  * 16-bit registers ax, bx, cx, dx, si, di and carry flag CF
2326
    are set according to the APM specification
2327
  * high halves of 32-bit registers eax, ebx, ecx,
2328
    edx, esi, edi are destroyed
114 mikedld 2329
Remarks:
118 diamond 2330
  * APM 1.2 specification is described in the document
2331
    "Advanced Power Management (APM) BIOS Specification"
2332
    (Revision 1.2), available at
114 mikedld 2333
    http://www.microsoft.com/whdc/archive/amp_12.mspx;
118 diamond 2334
    besides it is included in famous Interrupt List by Ralf Brown
114 mikedld 2335
    (http://www.pobox.com/~ralf/files.html,
2336
    ftp://ftp.cs.cmu.edu/afs/cs/user/ralf/pub/).
2337
 
2338
======================================================================
118 diamond 2339
=================== Function 50 - set window shape. ==================
114 mikedld 2340
======================================================================
118 diamond 2341
Normal windows have rectangular shape. This function can give to
2342
a window any shape. The shape is given by a set of points inside
2343
the base rectangle belonging to a window. Position and coordinates
2344
of the base rectangle are set by function 0
2345
and changed by function 67.
114 mikedld 2346
 
118 diamond 2347
--------------------------- Set shape data ---------------------------
114 mikedld 2348
Parameters:
118 diamond 2349
  * eax = 50 - function number
2350
  * ebx = 0 - subfunction number
2351
  * ecx = pointer to shape data (array of bytes 0/1)
114 mikedld 2352
Returned value:
2353
  * function does not return value
2354
 
118 diamond 2355
-------------------------- Set shape scale ---------------------------
114 mikedld 2356
Parameters:
118 diamond 2357
  * eax = 50 - function number
2358
  * ebx = 1 - subfunction number
2359
  * ecx sets a scale: each byte of data defines
2360
    (2^scale)*(2^scale) pixels
114 mikedld 2361
Returned value:
2362
  * function does not return value
2363
Remarks:
118 diamond 2364
  * Default scale is 0 (scale factor is 1). If in the shape data
2365
    one byte corresponds to one pixel, there is no necessity
2366
    to set scale.
2367
  * Let's designate xsize = window width (in pixels), ysize = height;
2368
    pay attention, that they are one pixel more than defined by
114 mikedld 2369
    functions 0, 67.
118 diamond 2370
  * On definition of scale xsize and ysize must be divisible
2371
    on 2^scale.
2372
  * Byte of data on offset 'a' must be 0/1 and defines belonging
2373
    to a window of square with the side 2^scale (if scale=0,
2374
    this is one pixel) and coordinates of the left upper corner
114 mikedld 2375
    (a mod (xsize shr scale), a div (xsize shr scale))
118 diamond 2376
  * Data size: (xsize shr scale)*(ysize shr scale).
2377
  * Data must be presented in the memory and not change
2378
    after set of shape.
2379
  * The system views the shape data at every window redraw by
2380
    function 0.
2381
  * The call of subfunction 0 with NULL pointer results in return
2382
    to the rectangular shape.
114 mikedld 2383
 
2384
======================================================================
2385
==================== Function 51 - create thread. ====================
2386
======================================================================
2387
Parameters:
118 diamond 2388
  * eax = 51 - function number
2389
  * ebx = 1 - unique subfunction
2390
  * ecx = address of thread entry point (starting eip)
2391
  * edx = pointer to thread stack (starting esp)
114 mikedld 2392
Returned value:
118 diamond 2393
  * eax = -1 - error (there is too many threads)
2394
  * otherwise eax = TID - thread identifier
2971 Serge 2395
    
114 mikedld 2396
 
2397
======================================================================
118 diamond 2398
=== Function 52, subfunction 0 - get network driver configuration. ===
114 mikedld 2399
======================================================================
2400
Parameters:
118 diamond 2401
  * eax = 52 - function number
2402
  * ebx = 0 - subfunction number
114 mikedld 2403
Returned value:
118 diamond 2404
  * eax = configuration dword
114 mikedld 2405
Remarks:
118 diamond 2406
  * Configuration dword can be set by subfunction 2.
2407
  * The kernel does not use this variable. The value of this
2408
    variable and working with it subfunctions 0 and 2 is represented
2409
    doubtful.
114 mikedld 2410
 
2411
======================================================================
118 diamond 2412
========= Function 52, subfunction 1 - get local IP-address. =========
114 mikedld 2413
======================================================================
2414
Parameters:
118 diamond 2415
  * eax = 52 - function number
2416
  * ebx = 1 - subfunction number
114 mikedld 2417
Returned value:
2418
  * eax = IP-address (4 bytes)
2419
Remarks:
118 diamond 2420
  * Local IP-address is set by subfunction 3.
114 mikedld 2421
 
2422
======================================================================
118 diamond 2423
=== Function 52, subfunction 2 - set network driver configuration. ===
114 mikedld 2424
======================================================================
2425
Parameters:
118 diamond 2426
  * eax = 52 - function number
2427
  * ebx = 2 - subfunction number
2428
  * ecx = configuration dword; if low 7 bits derivate the number 3,
2429
    function [re-]initializes Ethernet-card, otherwise
2430
    Ethernet turns off
114 mikedld 2431
Returned value:
118 diamond 2432
  * if Ethernet-interface is not requested, function returns eax=2,
2433
    but this can be changed in future kernel versions
2434
  * if Ethernet-interface is requested, eax=0 means error
2435
    (absence of Ethernet-card), and nonzero value - success
114 mikedld 2436
Remarks:
118 diamond 2437
  * Configuration dword can be read by subfunction 0.
2438
  * The kernel does not use this variable. The value of this
2439
    variable, subfunction 0 and part of subfunction 2, which set it,
114 mikedld 2440
    is represented doubtful.
2441
 
2442
======================================================================
2443
========= Function 52, subfunction 3 - set local IP-address. =========
2444
======================================================================
2445
Parameters:
118 diamond 2446
  * eax = 52 - function number
2447
  * ebx = 3 - subfunction number
114 mikedld 2448
  * ecx = IP-address (4 bytes)
2449
Returned value:
118 diamond 2450
  * the current implementation returns eax=3, but this can be changed
2451
    in future versions
114 mikedld 2452
Remarks:
118 diamond 2453
  * Local IP-address can be get by subfunction 1.
114 mikedld 2454
 
2455
======================================================================
118 diamond 2456
= Function 52, subfunction 6 - add data to the stack of input queue. =
114 mikedld 2457
======================================================================
2458
Parameters:
118 diamond 2459
  * eax = 52 - function number
2460
  * ebx = 6 - subfunction number
2461
  * edx = data size
2462
  * esi = data pointer
114 mikedld 2463
Returned value:
2464
  * eax = -1 - error
118 diamond 2465
  * eax = 0 - success
114 mikedld 2466
Remarks:
118 diamond 2467
  * This function is intended only for slow network drivers
2468
    (PPP, SLIP).
2469
  * Data size must not exceed 1500 bytes, though function
2470
    performs no checks on correctness.
114 mikedld 2471
 
2472
======================================================================
2971 Serge 2473
 Function 52, subfunction 8 - read data from the network output queue.
114 mikedld 2474
======================================================================
2475
Parameters:
118 diamond 2476
  * eax = 52 - function number
2477
  * ebx = 8 - subfunction number
2478
  * esi = pointer to 1500-byte buffer
114 mikedld 2479
Returned value:
118 diamond 2480
  * eax = number of read bytes (in the current implementation
2481
    either 0 = no data or 1500)
2482
  * data was copied in buffer
114 mikedld 2483
Remarks:
118 diamond 2484
  * This function is intended only for slow network drivers
2485
    (PPP, SLIP).
114 mikedld 2486
 
2487
======================================================================
118 diamond 2488
============ Function 52, subfunction 9 - get gateway IP. ============
114 mikedld 2489
======================================================================
2490
Parameters:
118 diamond 2491
  * eax = 52 - function number
2492
  * ebx = 9 - subfunction number
114 mikedld 2493
Returned value:
2494
  * eax = gateway IP (4 bytes)
2495
 
2496
======================================================================
118 diamond 2497
=========== Function 52, subfunction 10 - get subnet mask. ===========
114 mikedld 2498
======================================================================
2499
Parameters:
118 diamond 2500
  * eax = 52 - function number
2501
  * ebx = 10 - subfunction number
114 mikedld 2502
Returned value:
118 diamond 2503
  * eax = subnet mask
114 mikedld 2504
 
2505
======================================================================
118 diamond 2506
============ Function 52, subfunction 11 - set gateway IP. ===========
114 mikedld 2507
======================================================================
2508
Parameters:
118 diamond 2509
  * eax = 52 - function number
2510
  * ebx = 11 - subfunction number
114 mikedld 2511
  * ecx = gateway IP (4 bytes)
2512
Returned value:
118 diamond 2513
  * the current implementation returns eax=11, but this can be changed
2514
    in future versions
114 mikedld 2515
 
2516
======================================================================
118 diamond 2517
=========== Function 52, subfunction 12 - set subnet mask. ===========
114 mikedld 2518
======================================================================
2519
Parameters:
118 diamond 2520
  * eax = 52 - function number
2521
  * ebx = 12 - subfunction number
2522
  * ecx = subnet mask
114 mikedld 2523
Returned value:
118 diamond 2524
  * the current implementation returns eax=12, but this can be changed
2525
    in future versions
114 mikedld 2526
 
2527
======================================================================
118 diamond 2528
============== Function 52, subfunction 13 - get DNS IP. =============
114 mikedld 2529
======================================================================
2530
Parameters:
118 diamond 2531
  * eax = 52 - function number
2532
  * ebx = 13 - subfunction number
114 mikedld 2533
Returned value:
2534
  * eax = DNS IP (4 bytes)
2535
 
2536
======================================================================
118 diamond 2537
============== Function 52, subfunction 14 - set DNS IP. =============
114 mikedld 2538
======================================================================
2539
Parameters:
118 diamond 2540
  * eax = 52 - function number
2541
  * ebx = 14 - subfunction number
114 mikedld 2542
  * ecx = DNS IP (4 bytes)
2543
Returned value:
118 diamond 2544
  * the current implementation returns eax=14, but this can be changed
2545
    in future versions
114 mikedld 2546
 
2547
======================================================================
277 diamond 2548
======== Function 52, subfunction 15 - get local MAC address. ========
2549
======================================================================
2550
Parameters:
2551
  * eax = 52 - function number
2552
  * ebx = 15 - subfunction number
2553
  * ecx = 0 - read first 4 bytes,
2554
    ecx = 4 - read last 2 bytes
2555
Returned value:
2556
  * for ecx=0: eax = first 4 bytes of MAC address
2557
  * for ecx=4: ax = last 2 bytes of MAC address,
2558
               high half of eax is destroyed
2559
  * for other ecx: eax = -1 indicates an error
2560
 
2561
======================================================================
118 diamond 2562
============ Function 53, subfunction 0 - open UDP-socket. ===========
114 mikedld 2563
======================================================================
2564
Parameters:
118 diamond 2565
  * eax = 53 - function number
2566
  * ebx = 0 - subfunction number
2567
  * ecx = local port (only low word is taken into account)
2568
  * edx = remote port (only low word is taken into account)
114 mikedld 2569
  * esi = remote IP
2570
Returned value:
118 diamond 2571
  * eax = -1 = 0xFFFFFFFF - error; ebx destroyed
2572
  * eax = socket handle (some number which unambiguously identifies
2573
    socket and have sense only for the system) - success;
2574
    ebx destroyed
114 mikedld 2575
 
2576
======================================================================
118 diamond 2577
=========== Function 53, subfunction 1 - close UDP-socket. ===========
114 mikedld 2578
======================================================================
2579
Parameters:
118 diamond 2580
  * eax = 53 - function number
2581
  * ebx = 1 - subfunction number
2582
  * ecx = socket handle
114 mikedld 2583
Returned value:
118 diamond 2584
  * eax = -1 - incorrect handle
2585
  * eax = 0 - success
2586
  * ebx destroyed
114 mikedld 2587
Remarks:
118 diamond 2588
  * The current implementation does not close automatically all
2589
    sockets of a thread at termination. In particular, one should not
2590
    kill a thread with many opened sockets - there will be an outflow
2591
    of resources.
114 mikedld 2592
 
2593
======================================================================
2594
============== Function 53, subfunction 2 - poll socket. =============
2595
======================================================================
2596
Parameters:
118 diamond 2597
  * eax = 53 - function number
2598
  * ebx = 2 - subfunction number
2599
  * ecx = socket handle
114 mikedld 2600
Returned value:
2971 Serge 2601
  * eax = number of read bytes, 0 for incorrect handle
118 diamond 2602
  * ebx destroyed
114 mikedld 2603
 
2604
======================================================================
118 diamond 2605
========= Function 53, subfunction 3 - read byte from socket. ========
114 mikedld 2606
======================================================================
2607
Parameters:
118 diamond 2608
  * eax = 53 - function number
2609
  * ebx = 3 - subfunction number
2610
  * ecx = socket handle
114 mikedld 2611
Returned value:
2971 Serge 2612
  * if there is no read data or handle is incorrect: eax=0, bl=0,
118 diamond 2613
    other bytes of ebx are destroyed
2614
  * if there are read data: eax=number of rest bytes
2615
    (possibly 0), bl=read byte, other bytes of ebx are destroyed
114 mikedld 2616
 
2617
======================================================================
118 diamond 2618
========== Function 53, subfunction 4 - write to UDP-socket. =========
114 mikedld 2619
======================================================================
2620
Parameters:
118 diamond 2621
  * eax = 53 - function number
2622
  * ebx = 4 - subfunction number
2623
  * ecx = socket handle
2624
  * edx = number of bytes to write
2625
  * esi = pointer to data to write
114 mikedld 2626
Returned value:
2971 Serge 2627
  * eax = 0xffffffff - error (invalid handle or not enough memory)
118 diamond 2628
  * eax = 0 - success
2629
  * ebx destroyed
114 mikedld 2630
Remarks:
118 diamond 2631
  * Number of bytes to write must not exceed 1500-28, though
2632
    the appropriate check is not made.
114 mikedld 2633
 
2634
======================================================================
2635
============ Function 53, subfunction 5 - open TCP-socket. ===========
2636
======================================================================
2637
Parameters:
118 diamond 2638
  * eax = 53 - function number
2639
  * ebx = 5 - subfunction number
2640
  * ecx = local port (only low word is taken into account)
2641
  * edx = remote port (only low word is taken into account)
114 mikedld 2642
  * esi = remote IP
118 diamond 2643
  * edi = open mode: SOCKET_PASSIVE=0 or SOCKET_ACTIVE=1
114 mikedld 2644
Returned value:
118 diamond 2645
  * eax = -1 = 0xFFFFFFFF - error; ebx destroys
2646
  * eax = socket handle (some number which unambiguously identifies
2647
    socket and have sense only for the system) - success;
2648
    ebx destroyed
114 mikedld 2649
 
2650
======================================================================
118 diamond 2651
========= Function 53, subfunction 6 - get TCP-socket status. ========
114 mikedld 2652
======================================================================
2653
Parameters:
118 diamond 2654
  * eax = 53 - function number
2655
  * ebx = 6 - subfunction number
2656
  * ecx = socket handle
114 mikedld 2657
Returned value:
2971 Serge 2658
  * eax = 0 for incorrect handle or socket status: one of
114 mikedld 2659
  * TCB_LISTEN = 1
2660
  * TCB_SYN_SENT = 2
2661
  * TCB_SYN_RECEIVED = 3
2662
  * TCB_ESTABLISHED = 4
2663
  * TCB_FIN_WAIT_1 = 5
2664
  * TCB_FIN_WAIT_2 = 6
2665
  * TCB_CLOSE_WAIT = 7
2666
  * TCB_CLOSING = 8
2667
  * TCB_LAST_ASK = 9
2668
  * TCB_TIME_WAIT = 10
2669
  * TCB_CLOSED = 11
2971 Serge 2670
  * ebx destroyed
114 mikedld 2671
 
2672
======================================================================
118 diamond 2673
========== Function 53, subfunction 7 - write to TCP-socket. =========
114 mikedld 2674
======================================================================
2675
Parameters:
118 diamond 2676
  * eax = 53 - function number
2677
  * ebx = 7 - subfunction number
2678
  * ecx = socket handle
2679
  * edx = number of bytes to write
2680
  * esi = pointer to data to write
114 mikedld 2681
Returned value:
2971 Serge 2682
  * eax = 0xffffffff - error (invalid handle or not enough memory)
118 diamond 2683
  * eax = 0 - success
2684
  * ebx destroyed
114 mikedld 2685
Remarks:
118 diamond 2686
  * Number of bytes to write must not exceed 1500-40, though
2687
    the appropriate check is not made.
114 mikedld 2688
 
2689
======================================================================
118 diamond 2690
=========== Function 53, subfunction 8 - close TCP-socket. ===========
114 mikedld 2691
======================================================================
2692
Parameters:
118 diamond 2693
  * eax = 53 - function number
2694
  * ebx = 8 - subfunction number
2695
  * ecx = socket handle
114 mikedld 2696
Returned value:
2971 Serge 2697
  * eax = -1 - error (invalid handle or
2698
    not enough memory for socket close packet)
118 diamond 2699
  * eax = 0 - success
2700
  * ebx destroyed
114 mikedld 2701
Remarks:
118 diamond 2702
  * The current implementation does not close automatically all
2703
    sockets of a thread at termination. In particular, one should not
2704
    kill a thread with many opened sockets - there will be an outflow
2705
    of resources.
114 mikedld 2706
 
2707
======================================================================
118 diamond 2708
=== Function 53, subfunction 9 - check whether local port is free. ===
114 mikedld 2709
======================================================================
2710
Parameters:
118 diamond 2711
  * eax = 53 - function number
2712
  * ebx = 9 - subfunction number
2713
  * ecx = local port number (low 16 bits are used only)
114 mikedld 2714
Returned value:
2715
  * eax = 0 - port is used
2716
  * eax = 1 - port is free
118 diamond 2717
  * ebx destroyed
114 mikedld 2718
 
2719
======================================================================
314 diamond 2720
===== Function 53, subfunction 10 - query Ethernet cable status. =====
2721
======================================================================
2722
Parameters:
2723
  * eax = 53 - function number
2724
  * ebx = 10 - subfunction number
2725
Returned value:
2726
  * al = -1 - a network driver is not loaded or
2727
              does not support this function
2728
  * al = 0 - Ethernet cable is unplugged
2729
  * al = 1 - Ethernet cable is plugged
346 diamond 2730
  * ebx destroyed
314 diamond 2731
Remarks:
2732
  * The current kernel implementation supports this function
2733
    only for RTL8139 network cards.
2734
 
2735
======================================================================
346 diamond 2736
======= Function 53, subfunction 11 - read network stack data. =======
340 heavyiron 2737
======================================================================
346 diamond 2738
Paramters:
2739
  * eax = 53 - function number
2740
  * ebx = 11 - subfunction number
2741
  * ecx = socket handle
2742
  * edx = pointer to buffer
2743
  * esi = number of bytes to read;
2744
  * esi = 0 - read all data (maximum 4096 bytes)
2745
Returned value:
2971 Serge 2746
  * eax = number of bytes read (0 for incorrect handle)
346 diamond 2747
  * ebx destroyed
340 heavyiron 2748
 
2749
======================================================================
2971 Serge 2750
= Function 53, subfunction 255 - debug information of network driver.
114 mikedld 2751
======================================================================
2752
Parameters:
118 diamond 2753
  * eax = 53 - function number
2754
  * ebx = 255 - subfunction number
114 mikedld 2755
  * ecx = type of requested information (see below)
2756
Returned value:
2757
  * eax = requested information
118 diamond 2758
  * ebx destroyed
2759
Possible values for ecx:
114 mikedld 2760
  * 100: length of queue 0 (empty queue)
2761
  * 101: length of queue 1 (ip-out queue)
2762
  * 102: length of queue 2 (ip-in queue)
2763
  * 103: length of queue 3 (net1out queue)
118 diamond 2764
  * 200: number of items in the ARP table
2765
  * 201: size of the ARP table (in items) (20 for current version)
2766
  * 202: read item at edx of the ARP table to the temporary buffer,
2767
    whence 5 following types take information;
114 mikedld 2768
    in this case eax is not defined
118 diamond 2769
  * 203: IP-address saved by type 202
2770
  * 204: high dword of MAC-address saved by type 202
2771
  * 205: low word of MAC-address saved by type 202
2772
  * 206: status word saved by type 202
2773
  * 207: ttl word saved by type 202
2774
  * 2: total number of received IP-packets
2775
  * 3: total number of transferred IP-packets
2776
  * 4: total number of dumped received packets
2777
  * 5: total number of received ARP-packets
2778
  * 6: status of packet driver, 0=inactive, nonzero=active
114 mikedld 2779
 
2780
======================================================================
2971 Serge 2781
 Function 55, subfunction 55 - begin to play data on built-in speaker.
114 mikedld 2782
======================================================================
2783
Parameters:
118 diamond 2784
  * eax = 55 - function number
2785
  * ebx = 55 - subfunction number
2786
  * esi = pointer to data
114 mikedld 2787
Returned value:
118 diamond 2788
  * eax = 0 - success
2789
  * eax = 55 - error (speaker is off or busy)
2790
Data is an array of items with variable length.
2791
Format of each item is defined by first byte:
114 mikedld 2792
  * 0 = end of data
118 diamond 2793
  * 1..0x80 = sets sound duration on 1/100 of second; sound note
2794
    is defined by immediate value of frequency
2795
    * following word (2 bytes) contains frequency divider;
2796
      frequency is defined as 1193180/divider
114 mikedld 2797
  * 0x81 = invalid
118 diamond 2798
  * 0x82..0xFF = note is defined by octave and number:
2799
    * duration in 1/100 of second = (first byte)-0x81
114 mikedld 2800
    * there is one more byte;
118 diamond 2801
    * (second byte)=0xFF - delay
2802
    * otherwise it looks like a*0x10+b, where b=number of the note in
2803
      an octave from 1 to 12, a=number of octave (beginning from 0)
114 mikedld 2804
Remarks:
118 diamond 2805
  * Speaker play can be disabled/enabled by
2806
    subfunction 8 of function 18.
2807
  * Function returns control, having informed the system
2808
    an information on request. Play itself goes independently from
2809
    the program.
2810
  * The data must be kept in the memory at least up to the end
2811
    of play.
114 mikedld 2812
 
2813
======================================================================
641 diamond 2814
======================= Function 57 - PCI BIOS. ======================
2815
======================================================================
2816
Parameters:
2817
  * eax = 57 - function number
2818
  * ebp corresponds to al in PCI BIOS specification
2819
  * other registers are set according to PCI BIOS specification
2820
Returned value:
2821
  * CF is undefined
2822
  * other registers are set according to PCI BIOS specification
2823
Remarks:
2824
  * Many effects of this function can be also achieved with
2825
    corresponding subfunctions of function 62.
2826
  * The function calls PCI32 BIOS extension, documented e.g. in
2827
    http://alpha1.dyns.net/files/PCI/bios21.pdf.
2828
  * If BIOS does not support this extension, its behavior is emulated
2829
    (through kernel-mode analogues of subfunctions of function 62).
2830
 
2831
======================================================================
118 diamond 2832
================ Function 58 - work with file system. ================
114 mikedld 2833
======================================================================
2834
Parameters:
2835
  * eax = 58
118 diamond 2836
  * ebx = pointer to the information structure
114 mikedld 2837
Returned value:
118 diamond 2838
  * eax = 0 - success; otherwise file system error code
2839
  * some subfunctions return value in other registers too
2840
General format of the information structure:
2841
  * +0: dword: subfunction number
114 mikedld 2842
  * +4: dword: number of block
2843
  * +8: dword: size
118 diamond 2844
  * +12 = +0xC: dword: pointer to data
2845
  * +16 = +0x10: dword: pointer to a memory for system operations
114 mikedld 2846
    (4096 bytes)
118 diamond 2847
  * +20 = +0x14: n db: ASCIIZ-string with the file name
2848
Specifications - in documentation on the appropriate subfunction.
2849
Filename is case-insensitive for latin letters, russian letters
2850
must be capital.
2851
Format of filename:
114 mikedld 2852
/base/number/dir1/dir2/.../dirn/file,
118 diamond 2853
where /base/number identifies device, on which file is located:
114 mikedld 2854
one of
118 diamond 2855
  * /RD/1 = /RAMDISK/1 to access ramdisk
2856
  * /FD/1 = /FLOPPYDISK/1 to access first floppy drive,
2857
    /FD/2 = /FLOPPYDISK/2 to access second one
2858
  * /HD/x = /HARDDISK/x - obsolete variant of access to hard disk
2859
    (in this case base is defined by subfunction 7 of function 21),
2860
    x - partition number (beginning from 1)
2861
  * /HD0/x, /HD1/x, /HD2/x, /HD3/x to access accordingly to devices
2862
    IDE0 (Primary Master), IDE1 (Primary Slave),
114 mikedld 2863
    IDE2 (Secondary Master), IDE3 (Secondary Slave);
118 diamond 2864
    x - partition number on the selected hard drive, varies from 1
2865
    to 255 (on each hard drive the indexing starts from 1)
114 mikedld 2866
Remarks:
118 diamond 2867
  * In the first two cases it is also possible to use FIRST
2868
    instead of 1, SECOND instead of 2, but it is not recommended
2869
    for convenience of transition to the future extensions.
2870
  * Limitation n<=39 is imposed.
2871
  * Names of folders and file dir1,...,dirn,file must have the
2872
    format 8.3: name no more than 8 characters, dot, extension no
2873
    more than 3 characters. Trailing spaces are ignored, no other
2874
    spaces is allowed. If name occupies equally 8 characters,
2875
    dot may be omitted (though it is not recommended to use this
2876
    feature for convenience of transition to the future extensions).
2877
  * This function does not support folders on ramdisk.
114 mikedld 2878
Examples:
2879
  * '/RAMDISK/FIRST/KERNEL.ASM',0
2880
    '/rd/1/kernel.asm',0
2881
  * '/HD0/1/kernel.asm',0
2882
  * '/hd0/1/menuet/pics/tanzania.bmp',0
118 diamond 2883
Existing subfunctions:
2884
  * subfunction 0 - read file/folder
2885
  * subfunction 8 - LBA-read from device
2886
  * subfunction 15 - get file system information
114 mikedld 2887
 
2888
======================================================================
118 diamond 2889
=========== Function 58, subfunction 0 - read file/folder. ===========
114 mikedld 2890
======================================================================
2891
Parameters:
2892
  * eax = 58
118 diamond 2893
  * ebx = pointer to the information structure
2894
Format of the information structure:
2895
  * +0: dword: 0 = subfunction number
2896
  * +4: dword: first block to read (beginning from 0)
2897
  * +8: dword: amount of blocks to read
2898
  * +12 = +0xC: dword: pointer to buffer for data
2899
  * +16 = +0x10: dword: pointer to buffer for system operations
114 mikedld 2900
    (4096 bytes)
118 diamond 2901
  * +20 = +0x14: ASCIIZ-name of file, the rules of names forming are
2902
    given in the general description
114 mikedld 2903
Returned value:
118 diamond 2904
  * eax = 0 - success, otherwise file system error code
2905
  * ebx = file size (in bytes) or -1=0xffffffff, if file was not found
114 mikedld 2906
Remarks:
118 diamond 2907
  * Block size is 512 bytes.
114 mikedld 2908
  * This function is obsolete, for reading files use subfunction 0
118 diamond 2909
    of function 70, for reading folders - subfunction 1 of
2910
    function 70.
2911
  * Function can read contents of a folder. Only FAT file system is
2912
    supported. The format of FAT-folder is described
2913
    in any FAT documentation.
2914
  * Size of a folder is determined by size of FAT clusters chain.
2915
  * If file was ended before last requested block was read,
2916
    the function will read as many as it can, and after that return
2917
    eax=6 (EOF).
2918
  * Function can read root folders /rd/1,/fd/x,/hd[n]/x, but
2919
    in the first two cases the current implementation does not follow
2920
    to the declared rules:
114 mikedld 2921
    for /rd/1:
118 diamond 2922
    * if one want to read 0 blocks, function considers,
2923
      that he requested 1;
2924
    * if one requests more than 14 blocks or starting block is
2925
      not less than 14, function returns eax=5 (not found) и ebx=-1;
2971 Serge 2926
    * size of ramdisk root folder is 14 blocks,
118 diamond 2927
      0x1C00=7168 байт; but function returns ebx=0
2928
      (except of the case of previous item);
2929
    * strangely enough, it is possible to read 14th block (which
2930
      generally contains a garbage - I remind, the indexing begins
2931
      from 0);
2932
    * if some block with the number not less than 14 was requested,
2933
      function returns eax=6(EOF); otherwise eax=0.
2934
    For /fd/x:
2935
    * if the start block is not less than 14, function returns
2936
      eax=5 (not found) and ebx=0;
2937
    * note that format of FAT12 allows floppies with the root size
2938
      more or less than 14 blocks;
2939
    * check for length is not performed;
2940
    * if data was successful read, function returns
2941
      eax=0,ebx=0; otherwise eax=10 (access denied), ebx=-1.
2942
  * The function handles reading of special folders /,/rd,/fd,/hd[n];
2943
    but the result does not correspond to expected (on operations with
2944
    normal files/folders), does not follow the declared rules,
2945
    may be changed in future versions of the kernel and consequently
2946
    is not described. To obtain the information about the equipment
2947
    use subfunction 11 of function 18 or
2948
    read corresponding folder with subfunction 1 of function 70.
114 mikedld 2949
 
2950
======================================================================
118 diamond 2951
========= Function 58, subfunction 8 - LBA-read from device. =========
114 mikedld 2952
======================================================================
2953
Parameters:
118 diamond 2954
  * eax = 58 - function number
2955
  * ebx = pointer to the information structure
2956
Format of the information structure:
2957
  * +0: dword: 8 = subfunction number
2958
  * +4: dword: number of block to read (beginning from 0)
2959
  * +8: dword: ignored (set to 1)
2960
  * +12 = +0xC: dword: pointer to buffer for data (512 bytes)
2961
  * +16 = +0x10: dword: pointer to buffer for system operations
114 mikedld 2962
    (4096 bytes)
118 diamond 2963
  * +20 = +0x14: ASCIIZ-name of device: case-insensitive, one of
2964
    /rd/1 = /RamDisk/1, /hd/n = /HardDisk/n,
114 mikedld 2965
    1<=n<=4 - number of device: 1=IDE0, ..., 4=IDE3.
118 diamond 2966
    Instead of digits it is allowed, though not recommended for
2967
    convenience of transition to future extensions, to use
2968
    'first','second','third','fourth'.
114 mikedld 2969
Returned value:
118 diamond 2970
  * for device name /hd/xxx, where xxx is not in the list above:
114 mikedld 2971
    * eax = ebx = 1
118 diamond 2972
  * for invalid device name (except for the previous case):
114 mikedld 2973
    * eax = 5
118 diamond 2974
    * ebx does not change
2975
  * if LBA-access is disabled by subfunction 11 of function 21:
114 mikedld 2976
    * eax = 2
118 diamond 2977
    * ebx destroyed
2978
  * for ramdisk: attempt to read block outside ramdisk
2979
    (18*2*80 blocks) results in
114 mikedld 2980
    * eax = 3
2981
    * ebx = 0
118 diamond 2982
  * for successful read:
114 mikedld 2983
    * eax = ebx = 0
2984
Remarks:
118 diamond 2985
  * Block size is 512 bytes; function reads one block.
2986
  * Do not depend on returned value, it can be changed
2987
    in future versions.
2971 Serge 2988
  * Function requires that LBA-access to devices is enabled by
2989
    subfunction 11 of function 21. To check this one can use
118 diamond 2990
    subfunction 11 of function 26.
2991
  * LBA-read of floppy is not supported.
2992
  * Function reads data on physical hard drive; if for any reason
2993
    data of the concrete partition are required, application must
2994
    define starting sector of this partition (either directly
2995
    through MBR, or from the full structure returned by
2996
    подфункцией 11 функции 18).
2997
  * Function does not check error code of hard disk, so request of
2998
    nonexisting sector reads something (most probably it will be
2999
    zeroes, but this is defined by device) and this is considered
3000
    as success (eax=0).
114 mikedld 3001
 
118 diamond 3002
======================================================================
3003
==== Function 58, subfunction 15 - get information on file system. ===
3004
======================================================================
114 mikedld 3005
Parameters:
118 diamond 3006
  * eax = 58 - function number
3007
  * ebx = pointer to the information structure
3008
Format of the information structure:
3009
  * +0: dword: 15 = subfunction number
114 mikedld 3010
  * +4: dword: ignored
3011
  * +8: dword: ignored
3012
  * +12 = +0xC: dword: ignored
3013
  * +16 = +0x10: dword: ignored
118 diamond 3014
  * +20 = +0x14: (only second character is checked)
114 mikedld 3015
    /rd=/RAMDISK or /hd=/HARDDISK
3016
Returned value:
118 diamond 3017
  * if the second character does not belong to set {'r','R','h','H'}:
114 mikedld 3018
    * eax = 3
3019
    * ebx = ecx = dword [fileinfo] = 0
3020
  * for ramdisk:
3021
    * eax = 0 (success)
3022
    * ebx = total number of clusters = 2847
3023
    * ecx = number of free clusters
3024
    * dword [fileinfo] = cluster size = 512
118 diamond 3025
  * for hard disk: base and partition are defined by subfunctions
3026
    7 and 8 of function 21:
114 mikedld 3027
    * eax = 0 (success)
3028
    * ebx = total number of clusters
3029
    * ecx = number of free clusters
3030
    * dword [fileinfo] = cluster size (in bytes)
3031
Remarks:
118 diamond 3032
  * Be not surprised to strange layout of 4th returned parameter
3033
    - when this code was writing, at system calls application got
3034
    only registers eax,ebx,ecx (from pushad-structure transmitted
3035
    as argument to the system function). Now it is corrected, so,
3036
    probably, it is meaningful to return cluster size in edx, while
3037
    this function is not used yet.
3038
  * There exists also subfunction 11 of function 18,
3039
    which returns information on file system. From the full table
3040
    of disk subsystem it is possible to deduce cluster size (there
3041
    it is stored in sectors) and total number of clusters
3042
    for hard disks.
114 mikedld 3043
 
3044
======================================================================
118 diamond 3045
========== Function 60 - Inter Process Communication (IPC). ==========
114 mikedld 3046
======================================================================
118 diamond 3047
IPC is used for message dispatching from one process/thread to
3048
another. Previously it is necessary to agree how to interpret
114 mikedld 3049
the concrete message.
3050
 
118 diamond 3051
----------- Subfunction 1 - set the area for IPC receiving -----------
3052
Is called by process-receiver.
114 mikedld 3053
Parameters:
118 diamond 3054
  * eax = 60 - function number
3055
  * ebx = 1 - subfunction number
3056
  * ecx = pointer to the buffer
3057
  * edx = size of the buffer
114 mikedld 3058
Returned value:
118 diamond 3059
  * eax = 0 - always success
3060
Format of IPC-buffer:
3061
  * +0: dword: if nonzero, buffer is considered locked;
3062
    lock/unlock the buffer, when you work with it and need that
3063
    buffer data are not changed from outside (no new messages)
114 mikedld 3064
  * +4: dword: occupied place in the buffer (in bytes)
3065
  * +8: first message
3066
  * +8+n: second message
3067
  * ...
118 diamond 3068
Format of a message:
3069
  * +0: dword: PID of sender
3070
  * +4: dword: message length (not including this header)
3071
  * +8: n*byte: message data
114 mikedld 3072
 
118 diamond 3073
------------------ Subfunction 2 - send IPC message ------------------
3074
Is called by process-sender.
114 mikedld 3075
Parameters:
118 diamond 3076
  * eax = 60 - function number
3077
  * ebx = 2 - subfunction number
114 mikedld 3078
  * ecx = PID of receiver
118 diamond 3079
  * edx = pointer to the message data
3080
  * esi = message length (in bytes)
114 mikedld 3081
Returned value:
118 diamond 3082
  * eax = 0 - success
3083
  * eax = 1 - the receiver has not defined buffer for IPC messages
3084
    (can be, still have no time,
3085
    and can be, this is not right process)
3086
  * eax = 2 - the receiver has blocked IPC-buffer; try to wait a bit
3087
  * eax = 3 - overflow of IPC-buffer of the receiver
114 mikedld 3088
  * eax = 4 - process/thread with such PID does not exist
3089
Remarks:
118 diamond 3090
  * Immediately after writing of IPC-message to the buffer the system
3091
    sends to the receiver the event with code 7 (see event codes).
114 mikedld 3092
 
3093
======================================================================
118 diamond 3094
==== Function 61 - get parameters for the direct graphics access. ====
114 mikedld 3095
======================================================================
118 diamond 3096
The data of the graphics screen (the memory area which displays
3097
screen contents) are accessible to a program directly, without
3098
any system calls, through the selector gs:
2971 Serge 3099
        mov     eax, [gs:0]
118 diamond 3100
places in eax the first dword of the buffer, which contains
3101
information on color of the left upper point (and, possibly, colors
3102
of several following).
2971 Serge 3103
        mov     [gs:0], eax
118 diamond 3104
by work in VESA modes with LFB sets color of the left upper point
3105
(and, possibly, colors of several following).
3106
To interpret the data of graphics screen program needs to know
3107
some parameters, returning by this function.
114 mikedld 3108
Remarks:
118 diamond 3109
  * Graphics parameters changes very seldom at work,
3110
    namely, only in cases, when user works with the application VRR.
3111
  * At videomode change the system redraws all windows (event
3112
    with code 1) and redraws the background (event 5).
3113
    Same events occur in other cases too, which meet much more often,
3114
    than videomode change.
3115
  * By operation in videomodes with LFB the selector gs points to
3116
    LFB itself, so reading/writing on gs result directly in
3117
    change of screen contents. By operation in videomodes without
3118
    LFB gs points to some data area in the kernel, and all functions
3119
    of screen output fulfil honesty double operation on writing
3120
    directly to the screen and writing to this buffer. In result
3121
    at reading contents of this buffer the results correspond to
3122
    screen contents (with, generally speaking, large color
3123
    resolution), and writing is ignored.
3124
    One exception is the mode 320*200, for which main loop of the
3125
    system thread updates the screen according to mouse movements.
114 mikedld 3126
 
3127
------------------------- Screen resolution --------------------------
3128
Parameters:
118 diamond 3129
  * eax = 61 - function number
3130
  * ebx = 1 - subfunction number
114 mikedld 3131
Returned value:
118 diamond 3132
  * eax = [resolution on x axis]*65536 + [resolution on y axis]
114 mikedld 3133
Remarks:
118 diamond 3134
  * One can use function 14 paying attention that
3135
    it returns sizes on 1 pixel less. It is fully equivalent way.
114 mikedld 3136
 
118 diamond 3137
---------------------- Number of bits per pixel ----------------------
114 mikedld 3138
Parameters:
118 diamond 3139
  * eax = 61 - function number
3140
  * ebx = 2 - subfunction number
114 mikedld 3141
Returned value:
118 diamond 3142
  * eax = number of bits per pixel (24 or 32)
114 mikedld 3143
 
118 diamond 3144
-------------------- Number of bytes per scanline --------------------
114 mikedld 3145
Parameters:
118 diamond 3146
  * eax = 61 - function number
3147
  * ebx = 3 - subfunction number
114 mikedld 3148
Returned value:
118 diamond 3149
  * eax = number of bytes occupied by one scanline
114 mikedld 3150
    (horizontal line on the screen)
3151
 
3152
======================================================================
118 diamond 3153
===== Function 62, subfunction 0 - get version of PCI-interface. =====
114 mikedld 3154
======================================================================
3155
Parameters:
118 diamond 3156
  * eax = 62 - function number
3157
  * bl = 0 - subfunction number
114 mikedld 3158
Returned value:
118 diamond 3159
  * eax = -1 - PCI access is disabled; otherwise
3160
  * ah.al = version of PCI-interface (ah=version, al=subversion)
3161
  * high word of eax is zeroed
114 mikedld 3162
Remarks:
118 diamond 3163
  * Previously low-level access to PCI for applications must be
3164
    enabled by subfunction 12 of function 21.
3165
  * If PCI BIOS is not supported, the value of ax is undefined.
114 mikedld 3166
 
3167
======================================================================
118 diamond 3168
==== Function 62, subfunction 1 - get number of the last PCI-bus. ====
114 mikedld 3169
======================================================================
3170
Parameters:
118 diamond 3171
  * eax = 62 - function number
3172
  * bl = 1 - subfunction number
114 mikedld 3173
Returned value:
118 diamond 3174
  * eax = -1 - access to PCI is disabled; otherwise
3175
  * al = number of the last PCI-bus; other bytes of eax are destroyed
114 mikedld 3176
Remarks:
118 diamond 3177
  * Previously low-level access to PCI for applications must be
3178
    enabled by subfunction 12 of function 21.
3179
  * If PCI BIOS is not supported, the value of ax is undefined.
114 mikedld 3180
 
3181
======================================================================
118 diamond 3182
===================== Function 62, subfunction 2 =====================
3183
===== Get mechanism of addressing to the PCI configuration space. ====
114 mikedld 3184
======================================================================
3185
Parameters:
118 diamond 3186
  * eax = 62 - function number
3187
  * bl = 2 - subfunction number
114 mikedld 3188
Returned value:
118 diamond 3189
  * eax = -1 - access to PCI is disabled; otherwise
3190
  * al = mechanism (1 or 2); other bytes of eax are destroyed
114 mikedld 3191
Remarks:
118 diamond 3192
  * Previously low-level access to PCI for applications must be
3193
    enabled by subfunction 12 of function 21.
3194
  * Addressing mechanism is selected depending on
3195
    equipment characteristics.
3196
  * Subfunctions of read and write work automatically
3197
    with the selected mechanism.
114 mikedld 3198
 
3199
======================================================================
118 diamond 3200
======== Function 62, subfunctions 4,5,6 - read PCI-register. ========
114 mikedld 3201
======================================================================
3202
Parameters:
118 diamond 3203
  * eax = 62 - function number
3204
  * bl = 4 - read byte
3205
  * bl = 5 - read word
3206
  * bl = 6 - read dword
114 mikedld 3207
  * bh = number of PCI-bus
118 diamond 3208
  * ch = dddddfff, where ddddd = number of the device on the bus,
3209
    fff = function number of device
3210
  * cl = number of register (must be even for bl=5,
3211
    divisible by 4 for bl=6)
114 mikedld 3212
Returned value:
118 diamond 3213
  * eax = -1 - error (access to PCI is disabled or parameters
3214
    are not supported); otherwise
3215
  * al/ax/eax (depending on requested size) contains the data;
3216
    the other part of register eax is destroyed
114 mikedld 3217
Remarks:
118 diamond 3218
  * Previously low-level access to PCI for applications must be
3219
    enabled by subfunction 12 of function 21.
3220
  * Access mechanism 2 supports only 16 devices on a bus and ignores
3221
    function number. To get access mechanism use subfunction 2.
3222
  * Some registers are standard and exist for all devices, some are
3223
    defined by the concrete device. The list of registers of the
3224
    first type can be found e.g. in famous
114 mikedld 3225
    Interrupt List by Ralf Brown
3226
    (http://www.pobox.com/~ralf/files.html,
3227
    ftp://ftp.cs.cmu.edu/afs/cs/user/ralf/pub/);
118 diamond 3228
    registers of the second type must be listed
3229
    in the device documentation.
114 mikedld 3230
 
3231
======================================================================
118 diamond 3232
====== Function 62, subfunctions 8,9,10 - write to PCI-register. =====
114 mikedld 3233
======================================================================
3234
Parameters:
118 diamond 3235
  * eax = 62 - function number
3236
  * bl = 8 - write byte
3237
  * bl = 9 - write word
3238
  * bl = 10 - write dword
114 mikedld 3239
  * bh = number of PCI-bus
118 diamond 3240
  * ch = dddddfff, where ddddd = number of the device on the bus,
3241
    fff = function number of device
3242
  * cl = number of register (must be even for bl=9,
3243
    divisible by 4 for bl=10)
3244
  * dl/dx/edx (depending on requested size) contatins
3245
    the data to write
114 mikedld 3246
Returned value:
118 diamond 3247
  * eax = -1 - error (access to PCI is disabled or parameters
3248
    are not supported)
3249
  * eax = 0 - success
114 mikedld 3250
Remarks:
118 diamond 3251
  * Previously low-level access to PCI for applications must be
3252
    enabled by subfunction 12 of function 21.
3253
  * Access mechanism 2 supports only 16 devices on a bus and ignores
3254
    function number. To get access mechanism use subfunction 2.
3255
  * Some registers are standard and exist for all devices, some are
3256
    defined by the concrete device. The list of registers of the
3257
    first type can be found e.g. in famous Interrupt List by
3258
    Ralf Brown; registers of the second type must be listed
3259
    in the device documentation.
114 mikedld 3260
 
3261
======================================================================
118 diamond 3262
============== Function 63 - work with the debug board. ==============
114 mikedld 3263
======================================================================
118 diamond 3264
The debug board is the global system buffer (with the size
499 diamond 3265
1024 bytes), to which any program can write (generally speaking,
118 diamond 3266
arbitrary) data and from which other program can read these data.
3267
By the agreement written data are text strings interpreted as
3268
debug messages on a course of program execution. The kernel in
3269
some situations also writes to the debug board information on
3270
execution of some functions; by the agreement kernel messages
3271
begins from the prefix "K : ".
3272
For view of the debug board the application 'board' was created,
3273
which reads data from the buffer and displays them in its window.
3274
'board' interpretes the sequence of codes 13,10 as newline.
3275
A character with null code in an end of line is not necessary,
114 mikedld 3276
but also does not prevent.
118 diamond 3277
Because debugger has been written, the value of the debug board
3278
has decreased, as debugger allows to inspect completely a course of
3279
program execution without any efforts from the direction of program
3280
itself. Nevertheless in some cases the debug board is still useful.
114 mikedld 3281
 
118 diamond 3282
----------------------------- Write byte -----------------------------
114 mikedld 3283
Parameters:
118 diamond 3284
  * eax = 63 - function number
3285
  * ebx = 1 - subfunction number
3286
  * cl = data byte
114 mikedld 3287
Returned value:
3288
  * function does not return value
3289
Remarks:
118 diamond 3290
  * Byte is written to the buffer. Buffer size is 512 bytes.
3291
    At buffer overflow all obtained data are lost.
3292
  * For output to the debug board of more complicated objects
3293
    (strings, numbers) it is enough to call this function in cycle.
3294
    It is possible not to write the appropriate code manually and use
3295
    file 'debug.inc', which is included into the distributive.
114 mikedld 3296
 
118 diamond 3297
----------------------------- Read byte ------------------------------
3298
Takes away byte from the buffer.
114 mikedld 3299
Parameters:
118 diamond 3300
  * eax = 63 - function number
3301
  * ebx = 2 - subfunction number
114 mikedld 3302
Returned value:
118 diamond 3303
  * eax = ebx = 0 - the buffer is empty
3304
  * eax = byte, ebx = 1 - byte was successfully read
114 mikedld 3305
 
3306
======================================================================
118 diamond 3307
============== Function 64 - resize application memory. ==============
114 mikedld 3308
======================================================================
3309
Parameters:
118 diamond 3310
  * eax = 64 - function number
3311
  * ebx = 1 - unique subfunction
3312
  * ecx = new memory size
114 mikedld 3313
Returned value:
118 diamond 3314
  * eax = 0 - success
3315
  * eax = 1 - not enough memory
114 mikedld 3316
Remarks:
193 diamond 3317
  * There is another way to dynamically allocate/free memory -
3318
    subfunctions 11, 12, 13 of function 68.
3319
  * The function cannot be used together with 68.11, 68.12, 68.13.
3320
    The function call will be ignored after creation of process heap
3321
    with function 68.11.
114 mikedld 3322
 
3323
======================================================================
283 diamond 3324
======== Function 65 - draw image with palette in the window. ========
3325
======================================================================
3326
Parameters:
3327
  * eax = 65 - function number
3328
  * ebx = pointer to the image
3329
  * ecx = [size on axis x]*65536 + [size on axis y]
3330
  * edx = [coordinate on axis x]*65536 + [coordinate on axis y]
2971 Serge 3331
  * esi = number of bits per pixel, must be 1,2,4,8,15,16,24 or 32
3332
  * edi = pointer to palette (2 to the power esi colors 0x00RRGGBB);
3333
          ignored when esi > 8
314 diamond 3334
  * ebp = offset of next row data relative to previous row data
283 diamond 3335
Returned value:
3336
  * function does not return value
3337
Remarks:
3338
  * Coordinates of the image are coordinates of the upper left corner
3339
    of the image relative to the window.
2971 Serge 3340
  * Format of image with 1 bit per pixel: each byte of image
3341
    (possibly excluding last bytes in rows), contains information on
3342
    the color of 8 pixels, MSB corresponds to first pixel.
3343
  * Format of image with 2 bits per pixel: each byte of image
3344
    (possibly excluding last bytes in rows), contains information on
3345
    the color of 4 pixels, two MSBs correspond to first pixel.
3346
  * Format of image with 4 bits per pixel: each byte of image
3347
    excluding last bytes in rows (if width is odd) contains
3348
    information on the color of 2 pixels, high-order tetrad
3349
    corresponds to first pixel.
3350
  * Format of image with 8 bits per pixel: each byte of image is
3351
    index in the palette.
3352
  * Format of image with 15 bits per pixel: the color of each pixel
3353
    is coded as (bit representation) 0RRRRRGGGGGBBBBB - 5 bits per
3354
    each color.
3355
  * Format of image with 16 bits per pixel: the color of each pixel
3356
    is coded as RRRRRGGGGGGBBBBB (5+6+5).
3357
  * Format of image with 24 bits per pixel: the color of each pixel
3358
    is coded as 3 bytes - sequentially blue, green, red components.
3359
  * Format of image with 32 bits per pixel: similar to 24, but
3360
    one additional ignored byte is present.
314 diamond 3361
  * The call to function 7 is equivalent to call to this function
3362
    with esi=24, ebp=0.
283 diamond 3363
 
3364
======================================================================
118 diamond 3365
================== Function 66 - work with keyboard. =================
114 mikedld 3366
======================================================================
118 diamond 3367
The input mode influences results of reading keys by function 2.
3368
When a program loads, ASCII input mode is set for it.
114 mikedld 3369
 
118 diamond 3370
-------------- Subfunction 1 - set keyboard input mode. --------------
114 mikedld 3371
Parameters:
118 diamond 3372
  * eax = 66 - function number
3373
  * ebx = 1 - subfunction number
114 mikedld 3374
  * ecx = mode:
3375
    * 0 = normal (ASCII-characters)
3376
    * 1 = scancodes
3377
Returned value:
3378
  * function does not return value
3379
 
118 diamond 3380
-------------- Subfunction 2 - get keyboard input mode. --------------
114 mikedld 3381
Parameters:
118 diamond 3382
  * eax = 66 - function number
3383
  * ebx = 2 - subfunction number
114 mikedld 3384
Returned value:
3385
  * eax = current mode
3386
 
118 diamond 3387
------------ Subfunction 3 - get status of control keys. -------------
114 mikedld 3388
Parameters:
118 diamond 3389
  * eax = 66 - function number
3390
  * ebx = 3 - subfunction number
114 mikedld 3391
Returned value:
3392
  * eax = bit mask:
118 diamond 3393
  * bit 0 (mask 1): left Shift is pressed
3394
  * bit 1 (mask 2): right Shift is pressed
3395
  * bit 2 (mask 4): left Ctrl is pressed
3396
  * bit 3 (mask 8): right Ctrl is pressed
3397
  * bit 4 (mask 0x10): left Alt is pressed
3398
  * bit 5 (mask 0x20): right Alt is pressed
3399
  * bit 6 (mask 0x40): CapsLock is on
3400
  * bit 7 (mask 0x80): NumLock is on
3401
  * bit 8 (mask 0x100): ScrollLock is on
3402
  * other bits are cleared
114 mikedld 3403
 
118 diamond 3404
-------------- Subfunction 4 - set system-wide hotkey. ---------------
3405
When hotkey is pressed, the system notifies only those applications,
3406
which have installed it; the active application (which receives
3407
all normal input) does not receive such keys.
3408
The notification consists in sending event with the code 2.
3409
Reading hotkey is the same as reading normal key - by function 2.
114 mikedld 3410
Parameters:
118 diamond 3411
  * eax = 66 - function number
3412
  * ebx = 4 - subfunction number
3413
  * cl determines key scancode;
3414
    use cl=0 to give combinations such as Ctrl+Shift
3415
  * edx = 0xXYZ determines possible states of control keys:
3416
    * Z (low 4 bits) determines state of LShift and RShift:
3417
      * 0 = no key must be pressed;
3418
      * 1 = exactly one key must be pressed;
3419
      * 2 = both keys must be pressed;
3420
      * 3 = must be pressed LShift, but not RShift;
3421
      * 4 = must be pressed RShift, but not LShift
3422
    * Y - similar for LCtrl and RCtrl;
3423
    * X - similar for LAlt and RAlt
114 mikedld 3424
Returned value:
118 diamond 3425
  * eax=0 - success
3426
  * eax=1 - too mant hotkeys (maximum 256 are allowed)
114 mikedld 3427
Remarks:
118 diamond 3428
  * Hotkey can work either at pressing or at release. Release
3429
    scancode of a key is more on 128 than pressing scancode
3430
    (i.e. high bit is set).
3431
  * Several applications can set the same combination;
3432
    all such applications will be informed on pressing
3433
    such combination.
114 mikedld 3434
 
118 diamond 3435
-------------- Subfunction 5 - delete installed hotkey. --------------
114 mikedld 3436
Parameters:
118 diamond 3437
  * eax = 66 - function number
3438
  * ebx = 5 - subfunction number
3439
  * cl = scancode of key and edx = 0xXYZ the same as in subfunction 4
114 mikedld 3440
Returned value:
118 diamond 3441
  * eax = 0 - success
114 mikedld 3442
  * eax = 1 - there is no such hotkey
3443
Remarks:
118 diamond 3444
  * When a process/thread terminates, all hotkey installed by it are
3445
    deleted.
3446
  * The call to this subfunction does not affect other applications.
3447
    If other application has defined the same combination, it will
3448
    still receive notices.
114 mikedld 3449
 
3450
======================================================================
118 diamond 3451
========= Function 67 - change position/sizes of the window. =========
114 mikedld 3452
======================================================================
3453
Parameters:
118 diamond 3454
  * eax = 67 - function number
114 mikedld 3455
  * ebx = new x-coordinate of the window
3456
  * ecx = new y-coordinate of the window
3457
  * edx = new x-size of the window
3458
  * esi = new y-size of the window
3459
Returned value:
3460
  * function does not return value
3461
Remarks:
118 diamond 3462
  * The value -1 for a parameter means "do not change"; e.g. to move
3463
    the window without resizing it is possible to specify edx=esi=-1.
3464
  * Previously the window must be defined by function 0.
114 mikedld 3465
    It sets initial coordinates and sizes of the window.
118 diamond 3466
  * Sizes of the window are understood in sense of function 0,
3467
    that is one pixel less than real sizes.
3468
  * The function call for maximized windows is simply ignored.
3469
  * For windows of appropriate styles position and/or sizes can be
3470
    changed by user; current position and sizes can be obtained by
3471
    call to function 9.
3472
  * The function sends to the window redraw event (with the code 1).
114 mikedld 3473
 
3474
======================================================================
118 diamond 3475
====== Function 68, subfunction 0 - get the task switch counter. =====
114 mikedld 3476
======================================================================
3477
Parameters:
118 diamond 3478
  * eax = 68 - function number
3479
  * ebx = 0 - subfunction number
114 mikedld 3480
Returned value:
118 diamond 3481
  * eax = number of task switches from the system booting
3482
    (modulo 2^32)
114 mikedld 3483
 
3484
======================================================================
118 diamond 3485
======= Function 68, subfunction 1 - switch to the next thread. ======
114 mikedld 3486
======================================================================
118 diamond 3487
The function completes the current time slice allocated to the
3488
thread and switches to the next. (Which thread in which process
3489
will be next, is unpredictable). Later, when execution queue
3490
will reach the current thread, execution will be continued.
114 mikedld 3491
Parameters:
118 diamond 3492
  * eax = 68 - function number
3493
  * ebx = 1 - subfunction number
114 mikedld 3494
Returned value:
3495
  * function does not return value
3496
 
3497
======================================================================
118 diamond 3498
============= Function 68, subfunction 2 - cache + rdpmc. ============
114 mikedld 3499
======================================================================
3500
Parameters:
118 diamond 3501
  * eax = 68 - function number
3502
  * ebx = 2 - subfunction number
3503
  * ecx = required action:
3504
    * ecx = 0 - enable instruction 'rdpmc'
3505
      (ReaD Performance-Monitoring Counters) for applications
3506
    * ecx = 1 - find out whether cache is disabled/enabled
3507
    * ecx = 2 - enable cache
3508
    * ecx = 3 - disable cache
114 mikedld 3509
Returned value:
3510
  * for ecx=0:
118 diamond 3511
    * eax = the value of cr4
114 mikedld 3512
  * for ecx=1:
3513
    * eax = (cr0 and 0x60000000):
118 diamond 3514
    * eax = 0 - cache is on
3515
    * eax <> 0 - cache is off
114 mikedld 3516
  * for ecx=2 and ecx=3:
3517
    * function does not return value
3518
 
3519
======================================================================
3520
=========== Function 68, subfunction 3 - read MSR-register. ==========
3521
======================================================================
118 diamond 3522
MSR = Model Specific Register; the complete list of MSR-registers
3523
of a processor is included to the documentation on it (for example,
3524
IA-32 Intel Architecture Software Developer's Manual,
3525
Volume 3, Appendix B); each processor family has its own subset
3526
of the MSR-registers.
114 mikedld 3527
Parameters:
118 diamond 3528
  * eax = 68 - function number
3529
  * ebx = 3 - subfunction number
3530
  * ecx is ignored
3531
  * edx = MSR address
114 mikedld 3532
Returned value:
118 diamond 3533
  * ebx:eax = high:low dword of the result
114 mikedld 3534
Remarks:
118 diamond 3535
  * If ecx contains nonexistent or not implemented for this processor
3536
    MSR, processor will generate an exception in the kernel, which
3537
    will kill the thread.
3538
  * Previously it is necessary to check, whether MSRs are supported
3539
    as a whole, with the instruction 'cpuid'. Otherwise processor
3540
    will generate other exception in the kernel, which will anyway
3541
    kill the thread.
114 mikedld 3542
 
3543
======================================================================
118 diamond 3544
========= Function 68, subfunction 4 - write to MSR-register. ========
114 mikedld 3545
======================================================================
118 diamond 3546
MSR = Model Specific Register; the complete list of MSR-registers
3547
of a processor is included to the documentation on it (for example,
3548
IA-32 Intel Architecture Software Developer's Manual,
3549
Volume 3, Appendix B); each processor family has its own subset
3550
of the MSR-registers.
114 mikedld 3551
Parameters:
118 diamond 3552
  * eax = 68 - function number
3553
  * ebx = 4 - subfunction number
3554
  * ecx is ignored
3555
  * edx = MSR address
3556
  * esi:edi = high:low dword
114 mikedld 3557
Returned value:
499 diamond 3558
  * function does not return value
3559
Remarks:
118 diamond 3560
  * If ecx contains nonexistent or not implemented for this processor
3561
    MSR, processor will generate an exception in the kernel, which
3562
    will kill the thread.
3563
  * Previously it is necessary to check, whether MSRs are supported
3564
    as a whole, with the instruction 'cpuid'. Otherwise processor
3565
    will generate other exception in the kernel, which will anyway
3566
    kill the thread.
114 mikedld 3567
 
3568
======================================================================
193 diamond 3569
======= Function 68, subfunction 11 - initialize process heap. =======
114 mikedld 3570
======================================================================
3571
Parameters:
118 diamond 3572
  * eax = 68 - function number
193 diamond 3573
  * ebx = 11 - subfunction number
114 mikedld 3574
Returned value:
193 diamond 3575
  * eax = 0 - failed
3576
  * otherwise size of created heap
114 mikedld 3577
Remarks:
193 diamond 3578
  * The function call initializes heap, from which one can in future
3579
    allocate and free memory blocks with subfunctions 12 and 13.
3580
    Heap size is equal to total amount of free application memory.
3581
  * The second function call from the same process results in
3582
    returning the size of the existing heap.
3583
  * After creation of the heap calls to function 64 will be ignored.
114 mikedld 3584
 
3585
======================================================================
193 diamond 3586
======== Function 68, subfunction 12 - allocate memory block. ========
114 mikedld 3587
======================================================================
3588
Parameters:
118 diamond 3589
  * eax = 68 - function number
193 diamond 3590
  * ebx = 12 - subfunction number
3591
  * ecx = required size in bytes
114 mikedld 3592
Returned value:
193 diamond 3593
  * eax = pointer to the allocated block
114 mikedld 3594
Remarks:
193 diamond 3595
  * Before this call one must initialize process heap by call to
3596
    subfunction 11.
3597
  * The function allocates an integer number of pages (4 Kb) in such
3598
    way that the real size of allocated block is more than or equal to
3599
    requested size.
114 mikedld 3600
 
3601
======================================================================
193 diamond 3602
========== Function 68, subfunction 13 - free memory block. ==========
114 mikedld 3603
======================================================================
3604
Parameters:
118 diamond 3605
  * eax = 68 - function number
193 diamond 3606
  * ebx = 13 - subfunction number
3607
  * ecx = pointer to the memory block
114 mikedld 3608
Returned value:
193 diamond 3609
  * eax = 1 - success
3610
  * eax = 0 - failed
114 mikedld 3611
Remarks:
448 diamond 3612
  * The memory block must have been allocated by subfunction 12
3613
    or subfunction 20.
114 mikedld 3614
 
3615
======================================================================
2971 Serge 3616
===================== Function 68, subfunction 14 ====================
3617
====== Waiting delivering of signal from another program/driver ======
114 mikedld 3618
======================================================================
3619
Parameters:
118 diamond 3620
  * eax = 68 - function number
193 diamond 3621
  * ebx = 14 - subfunction number
2971 Serge 3622
  * ecx = pointer to the buffer for information (24 bytes)
114 mikedld 3623
Returned value:
193 diamond 3624
  * buffer pointed to by ecx contains the following information:
2971 Serge 3625
    * +0: dword: identifier for underlying data of signal
3626
    * +4: data of signal (20 bytes), format of which is defining by
3627
          first dword
114 mikedld 3628
 
3629
======================================================================
193 diamond 3630
====== Function 68, subfunction 15 - set FPU exception handler. ======
3631
======================================================================
2971 Serge 3632
Deleted (in current implementation only 0 is returned).
3633
Using subfunctions 24, 25 is true.
193 diamond 3634
 
3635
======================================================================
3636
============= Function 68, subfunction 16 - load driver. =============
3637
======================================================================
3638
Parameters:
3639
  * eax = 68 - function number
3640
  * ebx = 16 - subfunction number
3641
  * ecx = pointer to ASCIIZ-string with driver name
3642
Returned value:
3643
  * eax = 0 - failed
3644
  * otherwise eax = driver handle
3645
Remarks:
3646
  * If the driver was not loaded yet, it is loaded;
3647
    if the driver was loaded yet, nothing happens.
3648
  * Driver name is case-sensitive.
3649
    Maximum length of the name is 16 characters, including
3650
    terminating null character, the rest is ignored.
346 diamond 3651
  * Driver ABC is loaded from file /rd/1/drivers/ABC.obj.
193 diamond 3652
 
3653
======================================================================
3654
============ Function 68, subfunction 17 - driver control. ===========
3655
======================================================================
3656
Parameters:
3657
  * eax = 68 - function number
3658
  * ebx = 17 - subfunction number
3659
  * ecx = pointer to the control structure:
3660
    * +0: dword: handle of driver
3661
    * +4: dword: code of driver function
3662
    * +8: dword: pointer to input data
3663
    * +12 = +0xC: dword: size of input data
3664
    * +16 = +0x10: dword: pointer to output data
3665
    * +20 = +0x14: dword: size of output data
3666
Returned value:
2971 Serge 3667
  * eax =  error code
3668
 
3669
     -1  - any error.
3670
     -2, -3, -4, etc. reserved for kernel error codes
3671
      1, 2, 3, etc    driver specific error codes
193 diamond 3672
Remarks:
3673
  * Function codes and the structure of input/output data
3674
    are defined by driver.
3675
  * Previously one must obtain driver handle by subfunction 16.
3676
 
3677
======================================================================
3678
====== Function 68, subfunction 18 - set SSE exception handler. ======
3679
======================================================================
2971 Serge 3680
Deleted (in current implementation only 0 is returned).
3681
Using subfunctions 24, 25 is true.
193 diamond 3682
 
3683
======================================================================
277 diamond 3684
=============== Function 68, subfunction 19 - load DLL. ==============
3685
======================================================================
3686
Parameters:
3687
  * eax = 68 - function number
3688
  * ebx = 19 - subfunction number
3689
  * ecx = pointer to ASCIIZ-string with the full path to DLL
3690
Returned value:
3691
  * eax = 0 - failed
3692
  * otherwise eax = pointer to DLL export table
3693
Remarks:
3694
  * Export table is an array of structures of 2 dword's, terminated
3695
    by zero. The first dword in structure points to function name,
3696
    the second dword contains address of function.
3697
 
3698
======================================================================
448 diamond 3699
======= Function 68, subfunction 20 - reallocate memory block. =======
3700
======================================================================
3701
Parameters:
3702
  * eax = 68 - function number
3703
  * ebx = 20 - subfunction number
3704
  * ecx = new size in bytes
3705
  * edx = pointer to already allocated block
3706
Returned value:
3707
  * eax = pointer to the reallocated block, 0 = error
3708
Remarks:
3709
  * Before this call one must initialize process heap by call to
3710
    subfunction 11.
3711
  * The function allocates an integer number of pages (4 Kb) in such
3712
    way that the real size of allocated block is more than or equal to
3713
    requested size.
3714
  * If edx=0, the function call is equivalent to memory allocation
3715
    with subfunction 12. Otherwise the block at edx
3716
    must be allocated earlier with subfunction 12 or this subfunction.
3717
  * If ecx=0, the function frees memory block at edx and returns 0.
3718
  * The contents of the block are unchanged up to the shorter of
3719
    the new and old sizes.
3720
 
3721
======================================================================
2971 Serge 3722
====== Function 68, subfunction 24 - set new exceptions handler ======
3723
======================================================================
3724
Parameters:
3725
  * eax = 68 - function number
3726
  * ebx = 24 - subfunction number
3727
  * ecx = address of the new exception handler
3728
  * edx = the mask of processing exceptions
3729
Returned value:
3730
  * eax = address of the old exception handler (0, if it was not set)
3731
  * ebx = the old mask of exception handler
3732
Remarks:
3733
  * Bit number in mask of exceptions is correspond to exception number
3734
    by CPU-specification (Intel-PC). For example, FPU-exception have
3735
    number 16 (#MF), and SSE-exception - 19 (#XF)
3736
  * The current implementation ignore the inquiry for hook of 7
3737
    exception - system process #NM by one's own.
3738
  * User handler get exception number in stack parameter. So, correct
3739
    exit from handler is: RET 4. Return from handler is to the same
3740
    instruction, that was cause the exception
3741
  * When control is transfering to user handler, corresponding bit in
3742
    exception mask is clearing. Rising this exception in consequence
3743
    - reduce to default-handling. Exactly: terminating the application,
3744
    or suspending with debug-notify to owner.
3745
  * After completion of critical operations in user handler, it may be
3746
    rising corresponding bit in exception mask by using subfunction 25
3747
    Clearing exceptions flags in FPU and/or XMM modules - is
3748
    responsibility of user handler too.
3749
 
3750
======================================================================
3751
==== Function 68, subfunction 25 - change state of signal activity ===
3752
======================================================================
3753
Parameters:
3754
  * eax = 68 - function number
3755
  * ebx = 25 - subfunction number
3756
  * ecx = signal number
3757
  * edx = value of activity (0/1)
3758
Returned value:
3759
  * eax = value of old activity for this signal (0/1)
3760
Remarks:
3761
  * In current implementation, it is changed only exception mask for
3762
    user exception handler, wich was previously set by subfunction 24.
3763
    At that, number of signal correspond to exception number.
3764
 
3765
======================================================================
118 diamond 3766
====================== Fucntion 69 - debugging. ======================
114 mikedld 3767
======================================================================
118 diamond 3768
A process can load other process as debugged by set of corresponding
193 diamond 3769
bit by call to subfunction 7 of function 70.
118 diamond 3770
A process can have only one debugger; one process can debug some
3771
others. The system notifies debugger on events occuring with
3772
debugged process. Messages are written to the buffer defined by
114 mikedld 3773
subfunction 0.
118 diamond 3774
Format of a message:
3775
  * +0: dword: message code
3776
  * +4: dword: PID of debugged process
3777
  * +8: there can be additional data depending on message code
3778
Message codes:
114 mikedld 3779
  * 1 = exception
118 diamond 3780
    * in addition dword-number of the exception is given
3781
    * process is suspended
3782
  * 2 = process has terminated
3783
    * comes at any termination: both through the system function -1,
3784
      and at "murder" by any other process (including debugger itself)
114 mikedld 3785
  * 3 = debug exception int 1 = #DB
118 diamond 3786
    * in addition dword-image of the register DR6 is given:
3787
      * bits 0-3: condition of the corresponding breakpoint (set by
3788
        subfunction 9) is satisfied
3789
      * бит 14: exception has occured because of the trace mode
3790
        (flag TF is set TF)
3791
    * process is suspended
3792
When debugger terminates, all debugged processes are killed.
3793
If debugger does not want this, it must previously detach by
114 mikedld 3794
subfunction 3.
3795
 
2971 Serge 3796
All subfunctions are applicable only to processes/threads started
3797
from the current by function 70 with set debugging flag.
118 diamond 3798
Debugging of multithreaded programs is not supported yet.
3799
The full list of subfunctions:
3800
  * subfunction 0 - define data area for debug messages
3801
  * subfunction 1 - get contents of registers of debugged thread
3802
  * subfunction 2 - set contents of registers of debugged thread
3803
  * subfunction 3 - detach from debugged process
3804
  * subfunction 4 - suspend debugged thread
3805
  * subfunction 5 - resume debugged thread
3806
  * subfunction 6 - read from the memory of debugged process
3807
  * subfunction 7 - write to the memory of debugged process
3808
  * subfunction 8 - terminate debugged thread
3809
  * subfunction 9 - set/clear hardware breakpoint
114 mikedld 3810
 
3811
======================================================================
118 diamond 3812
= Function 69, subfunction 0 - define data area fror debug messages. =
114 mikedld 3813
======================================================================
3814
Parameters:
118 diamond 3815
  * eax = 69 - function number
3816
  * ebx = 0 - subfunction number
114 mikedld 3817
  * ecx = pointer
3818
Format of data area:
118 diamond 3819
  * +0: dword: N = buffer size (not including this header)
3820
  * +4: dword: occupied place
114 mikedld 3821
  * +8: N*byte: buffer
3822
Returned value:
3823
  * function does not return value
3824
Remarks:
118 diamond 3825
  * If the size field is negative, the buffer is considered locked
3826
    and at arrival of new message the system will wait.
3827
    For synchronization frame all work with the buffer by operations
3828
    lock/unlock
2971 Serge 3829
        neg     [bufsize]
118 diamond 3830
  * Data in the buffer are considered as array of items with variable
3831
    length - messages. Format of a message is explained in
3832
    general description.
114 mikedld 3833
 
3834
======================================================================
118 diamond 3835
===================== Function 69, subfunction 1 =====================
3836
============ Get contents of registers of debugged thread. ===========
114 mikedld 3837
======================================================================
3838
Parameters:
118 diamond 3839
  * eax = 69 - function number
3840
  * ebx = 1 - subfunction number
114 mikedld 3841
  * ecx = thread identifier
118 diamond 3842
  * edx = size of context structure, must be 0x28=40 bytes
3843
  * esi = pointer to context structure
114 mikedld 3844
Returned value:
3845
  * function does not return value
118 diamond 3846
Format of context structure: (FPU is not supported yet)
114 mikedld 3847
  * +0: dword: eip
3848
  * +4: dword: eflags
3849
  * +8: dword: eax
3850
  * +12 = +0xC: dword: ecx
3851
  * +16 = +0x10: dword: edx
3852
  * +20 = +0x14: dword: ebx
3853
  * +24 = +0x18: dword: esp
3854
  * +28 = +0x1C: dword: ebp
3855
  * +32 = +0x20: dword: esi
3856
  * +36 = +0x24: dword: edi
3857
Remarks:
118 diamond 3858
  * If the thread executes code of ring-0, the function returns
3859
    contents of registers of ring-3.
3860
  * Process must be loaded for debugging (as is shown in
3861
    general description).
114 mikedld 3862
 
3863
======================================================================
118 diamond 3864
===================== Function 69, subfunction 2 =====================
3865
============ Set contents of registers of debugged thread. ===========
114 mikedld 3866
======================================================================
3867
Parameters:
118 diamond 3868
  * eax = 69 - function number
3869
  * ebx = 2 - subfunction number
114 mikedld 3870
  * ecx = thread identifier
118 diamond 3871
  * edx = size of context structure, must be 0x28=40 bytes
114 mikedld 3872
Returned value:
3873
  * function does not return value
118 diamond 3874
Format of context structure is shown in the description of
3875
subfunction 1.
114 mikedld 3876
Remarks:
118 diamond 3877
  * If the thread executes code of ring-0, the function returns
3878
    contents of registers of ring-3.
3879
  * Process must be loaded for debugging (as is shown in
3880
    general description).
114 mikedld 3881
 
3882
======================================================================
118 diamond 3883
===== Function 69, subfunction 3 - detach from debugged process. =====
114 mikedld 3884
======================================================================
3885
Parameters:
118 diamond 3886
  * eax = 69 - function number
3887
  * ebx = 3 - subfunction number
114 mikedld 3888
  * ecx = identifier
3889
Returned value:
3890
  * function does not return value
3891
Remarks:
118 diamond 3892
  * If the process was suspended, it resumes execution.
114 mikedld 3893
 
3894
======================================================================
2971 Serge 3895
======== Function 69, subfunction 4 - suspend debugged thread. =======
114 mikedld 3896
======================================================================
3897
Parameters:
118 diamond 3898
  * eax = 69 - function number
3899
  * ebx = 4 - subfunction number
3900
  * ecx = thread identifier
114 mikedld 3901
Returned value:
3902
  * function does not return value
2971 Serge 3903
Remarks:
3904
  * Process must be loaded for debugging (as is shown in
3905
    general description).
114 mikedld 3906
 
3907
======================================================================
2971 Serge 3908
======== Function 69, subfunction 5 - resume debugged thread. ========
114 mikedld 3909
======================================================================
3910
Parameters:
118 diamond 3911
  * eax = 69 - function number
3912
  * ebx = 5 - subfunction number
3913
  * ecx = thread identifier
114 mikedld 3914
Returned value:
3915
  * function does not return value
2971 Serge 3916
Remarks:
3917
  * Process must be loaded for debugging (as is shown in
3918
    general description).
114 mikedld 3919
 
3920
======================================================================
118 diamond 3921
= Fucntion 69, subfunction 6 - read from memory of debugged process. =
114 mikedld 3922
======================================================================
3923
Parameters:
118 diamond 3924
  * eax = 69 - function number
3925
  * ebx = 6 - subfunction number
114 mikedld 3926
  * ecx = identifier
118 diamond 3927
  * edx = number of bytes to read
3928
  * esi = address in the memory of debugged process
3929
  * edi = pointer to buffer for data
114 mikedld 3930
Returned value:
118 diamond 3931
  * eax = -1 at an error (invalid PID or buffer)
3932
  * otherwise eax = number of read bytes (possibly, 0,
3933
    if esi is too large)
114 mikedld 3934
Remarks:
118 diamond 3935
  * Process must be loaded for debugging (as is shown in
3936
    general description).
114 mikedld 3937
 
3938
======================================================================
118 diamond 3939
== Function 69, subfunction 7 - write to memory of debugged process. =
114 mikedld 3940
======================================================================
3941
Parameters:
118 diamond 3942
  * eax = 69 - function number
3943
  * ebx = 7 - subfunction number
114 mikedld 3944
  * ecx = identifier
118 diamond 3945
  * edx = number of bytes to write
3946
  * esi = address of memory in debugged process
3947
  * edi = pointer to data
114 mikedld 3948
Returned value:
118 diamond 3949
  * eax = -1 at an error (invalid PID or buffer)
3950
  * otherwise eax = number of written bytes (possibly, 0,
3951
    if esi is too large)
114 mikedld 3952
Remarks:
118 diamond 3953
  * Process must be loaded for debugging (as is shown in
3954
    general description).
114 mikedld 3955
 
3956
======================================================================
118 diamond 3957
======= Function 69, subfunction 8 - terminate debugged thread. ======
114 mikedld 3958
======================================================================
3959
Parameters:
118 diamond 3960
  * eax = 69 - function number
3961
  * ebx = 8 - subfunction number
114 mikedld 3962
  * ecx = identifier
3963
Returned value:
3964
  * function does not return value
3965
Remarks:
118 diamond 3966
  * Process must be loaded for debugging (as is shown in
3967
    general description).
3968
  * The function is similar to subfunction 2 of function 18
3969
    with two differences: it requires first remark and
3970
    accepts PID rather than slot number.
114 mikedld 3971
 
3972
======================================================================
118 diamond 3973
===== Function 69, subfunction 9 - set/clear hardware breakpoint. ====
114 mikedld 3974
======================================================================
3975
Parameters:
118 diamond 3976
  * eax = 69 - function number
3977
  * ebx = 9 - subfunction number
114 mikedld 3978
  * ecx = thread identifier
118 diamond 3979
  * dl = index of breakpoint, from 0 to 3 inclusively
114 mikedld 3980
  * dh = flags:
118 diamond 3981
    * if high bit is cleared - set breakpoint:
114 mikedld 3982
      * bits 0-1 - condition:
3983
        * 00 = breakpoint on execution
118 diamond 3984
        * 01 = breakpoint on read
3985
        * 11 = breakpoint on read/write
3986
      * bits 2-3 - length; for breakpoints on exception it must be
3987
        00, otherwise one of
3988
        * 00 = byte
114 mikedld 3989
        * 01 = word
118 diamond 3990
        * 11 = dword
3991
      * esi = breakpoint address; must be aligned according to
3992
        the length (i.e. must be even for word breakpoints,
3993
        divisible by 4 for dword)
3994
    * if high bit is set - clear breakpoint
114 mikedld 3995
Returned value:
118 diamond 3996
  * eax = 0 - success
114 mikedld 3997
  * eax = 1 - error in the input data
118 diamond 3998
  * eax = 2 - (reserved, is never returned in the current
3999
    implementation) a global breakpoint with that index is already set
114 mikedld 4000
Remarks:
118 diamond 4001
  * Process must be loaded for debugging (as is shown in
4002
    general description).
4003
  * Hardware breakpoints are implemented through DRx-registers of
4004
    the processor, all limitations results from this.
4005
  * The function can reinstall the breakpoint, previously set
4006
    by it (and it does not inform on this).
4007
    Carry on the list of set breakpoints in the debugger.
4008
  * Breakpoints generate debug exception #DB, on which the system
4009
    notifies debugger.
4010
  * Breakpoints on write and read/write act after
4011
    execution of the caused it instruction.
114 mikedld 4012
 
4013
======================================================================
118 diamond 4014
==== Function 70 - work with file system with long names support. ====
114 mikedld 4015
======================================================================
4016
Parameters:
4017
  * eax = 70
118 diamond 4018
  * ebx = pointer to the information structure
114 mikedld 4019
Returned value:
118 diamond 4020
  * eax = 0 - success; otherwise file system error code
4021
  * some subfunctions return value in other registers too
4022
General format of the information structure:
4023
  * +0: dword: subfunction number
4024
  * +4: dword: file offset
4025
  * +8: dword: high dword of offset (must be 0) or flags field
114 mikedld 4026
  * +12 = +0xC: dword: size
118 diamond 4027
  * +16 = +0x10: dword: pointer to data
4028
  * +20 = +0x14: n db: ASCIIZ-string with the filename
114 mikedld 4029
    or
4030
  * +20 = +0x14: db 0
118 diamond 4031
  * +21 = +0x15: dd pointer to ASCIIZ-string with the filename
4032
Specifications - in documentation on the appropriate subfunction.
4033
Filename is case-insensitive. Russian letters must be written in
4034
the encoding cp866 (DOS).
4035
Format of filename:
114 mikedld 4036
/base/number/dir1/dir2/.../dirn/file,
118 diamond 4037
where /base/number identifies device, on which file is located:
114 mikedld 4038
one of
118 diamond 4039
  * /RD/1 = /RAMDISK/1 to access ramdisk
4040
  * /FD/1 = /FLOPPYDISK/1 to access first floppy drive,
4041
    /FD/2 = /FLOPPYDISK/2 to access second one
4042
  * /HD0/x, /HD1/x, /HD2/x, /HD3/x to access accordingly to devices
4043
    IDE0 (Primary Master), IDE1 (Primary Slave),
114 mikedld 4044
    IDE2 (Secondary Master), IDE3 (Secondary Slave);
118 diamond 4045
    x - partition number on the selected hard drive, varies from 1
4046
    to 255 (on each hard drive the indexing starts from 1)
4047
  * /CD0/1, /CD1/1, /CD2/1, /CD3/1 to access accordingly to
4048
    CD on IDE0 (Primary Master), IDE1 (Primary Slave),
4049
    IDE2 (Secondary Master), IDE3 (Secondary Slave)
546 diamond 4050
  * /SYS means system folder; with the usual boot (from floppy)
4051
    is equivalent to /RD/1
114 mikedld 4052
Examples:
4053
  * '/rd/1/kernel.asm',0
4054
  * '/HD0/1/kernel.asm',0
4055
  * '/hd0/2/menuet/pics/tanzania.bmp',0
4056
  * '/hd0/1/Program files/NameOfProgram/SomeFile.SomeExtension',0
546 diamond 4057
  * '/sys/MySuperApp.ini',0
118 diamond 4058
Available subfunctions:
114 mikedld 4059
  * subfunction 0 - read file
4060
  * subfunction 1 - read folder
4061
  * subfunction 2 - create/rewrite file
131 diamond 4062
  * subfunction 3 - write to existing file
133 diamond 4063
  * subfunction 4 - set file size
118 diamond 4064
  * subfunction 5 - get attributes of file/folder
4065
  * subfunction 6 - set attributes of file/folder
114 mikedld 4066
  * subfunction 7 - start application
193 diamond 4067
  * subfunction 8 - delete file/folder
321 diamond 4068
  * subfunction 9 - create folder
118 diamond 4069
For CD-drives due to hardware limitations only subfunctions
4070
0,1,5 and 7 are available, other subfunctions return error
4071
with code 2.
641 diamond 4072
At the first call of subfunctions 0,1,5,7 to ATAPI devices
4073
(CD and DVD) the manual control of tray is locked due to caching
4074
drive data. Unlocking is made when subfunction 4 of function 24
4075
is called for corresponding device.
114 mikedld 4076
 
4077
======================================================================
118 diamond 4078
=== Function 70, subfunction 0 - read file with long names support. ==
114 mikedld 4079
======================================================================
4080
Parameters:
118 diamond 4081
  * eax = 70 - function number
4082
  * ebx = pointer to the information structure
4083
Format of the information structure:
4084
  * +0: dword: 0 = subfunction number
4085
  * +4: dword: file offset (in bytes)
4086
  * +8: dword: 0 (reserved for high dword of offset)
4087
  * +12 = +0xC: dword: number of bytes to read
4088
  * +16 = +0x10: dword: pointer to buffer for data
4089
  * +20 = +0x14: ASCIIZ-name of file, the rules of names forming are
4090
    given in the general description
114 mikedld 4091
    or
4092
  * +20 = +0x14: db 0
118 diamond 4093
  * +21 = +0x15: dd pointer to ASCIIZ-string with file name
114 mikedld 4094
Returned value:
118 diamond 4095
  * eax = 0 - success, otherwise file system error code
4096
  * ebx = number of read bytes or -1=0xffffffff if file was not found
114 mikedld 4097
Remarks:
118 diamond 4098
  * If file was ended before last requested block was read,
4099
    the function will read as many as it can, and after that return
4100
    eax=6 (EOF).
4101
  * The function does not allow to read folder (returns eax=10,
4102
    access denied).
114 mikedld 4103
 
118 diamond 4104
======================================================================
4105
== Function 70, subfunction 1 - read folder with long names support. =
4106
======================================================================
114 mikedld 4107
Parameters:
118 diamond 4108
  * eax = 70 - function number
4109
  * ebx = pointer to the information structure
4110
Format of the information structure:
4111
  * +0: dword: 1 = subfunction number
4112
  * +4: dword: index of starting block (beginning from 0)
4113
  * +8: dword: flags field:
114 mikedld 4114
    * bit 0 (mask 1): in what format to return names,
4115
      0=ANSI, 1=UNICODE
118 diamond 4116
    * other bits are reserved and must be set to 0 for the future
4117
      compatibility
4118
  * +12 = +0xC: dword: number of blocks to read
4119
  * +16 = +0x10: dword: pointer to buffer for data, buffer size
4120
    must be not less than 32 + [+12]*560 bytes
4121
  * +20 = +0x14: ASCIIZ-name of folder, the rules of names forming are
4122
    given in the general description
114 mikedld 4123
    or
4124
  * +20 = +0x14: db 0
118 diamond 4125
  * +21 = +0x15: dd pointer to ASCIIZ-string with file name
114 mikedld 4126
Returned value:
118 diamond 4127
  * eax = 0 - success, otherwise file system error code
4128
  * ebx = number of files, information on which was written to
4129
    the buffer, or -1=0xffffffff, if folder was not found
114 mikedld 4130
Structure of the buffer:
4131
  * +0: 32*byte: header
4132
  * +32 = +0x20: n1*byte: block with information on file 1
118 diamond 4133
  * +32+n1: n2*byte: block with information on file 2
114 mikedld 4134
  * ...
4135
Structure of header:
118 diamond 4136
  * +0: dword: version of structure (current is 1)
4137
  * +4: dword: number of placed blocks; is not greater than requested
4138
    in the field +12 of information structure; can be less, if
4139
    there are no more files in folder (the same as in ebx)
4140
  * +8: dword: total number of files in folder
4141
  * +12 = +0xC: 20*byte: reserved (zeroed)
4142
Structure of block of data for folder entry (BDFE):
4143
  * +0: dword: attributes of file:
4144
    * bit 0 (mask 1): file is read-only
4145
    * bit 1 (mask 2): file is hidden
4146
    * bit 2 (mask 4): file is system
4147
    * bit 3 (mask 8): this is not a file but volume label
4148
      (for one partition meets no more than once and
4149
      only in root folder)
4150
    * bit 4 (mask 0x10): this is a folder
4151
    * bit 5 (mask 0x20): file was not archived - many archivation
4152
      programs have an option to archive only files with this bit set,
4153
      and after archiving this bit is cleared - it can be useful
4154
      for automatically creating of backup-archives as at writing
4155
      this bit is usually set
4156
  * +4: byte: type of name data:
4157
    (coincides with bit 0 of flags in the information structure)
4158
    * 0 = ASCII = 1-byte representation of each character
4159
    * 1 = UNICODE = 2-byte representation of each character
114 mikedld 4160
  * +5: 3*byte: reserved (zero)
118 diamond 4161
  * +8: 4*byte: time of file creation
4162
  * +12 = +0xC: 4*byte: date of file creation
4163
  * +16 = +0x10: 4*byte: time of last access (read or write)
114 mikedld 4164
  * +20 = +0x14: 4*byte: date of last access
118 diamond 4165
  * +24 = +0x18: 4*byte: time of last modification
4166
  * +28 = +0x1C: 4*byte: date of last modification
4167
  * +32 = +0x20: qword: file size in bytes (up to 16777216 Tb)
114 mikedld 4168
  * +40 = +0x28: name
118 diamond 4169
    * for ASCII format: maximum length is 263 characters
4170
      (263 bytes), byte after the name has value 0
321 diamond 4171
    * for UNICODE format: maximum length is 259 characters
118 diamond 4172
      (518 bytes), 2 bytes after the name have value 0
4173
Time format:
114 mikedld 4174
  * +0: byte: seconds
4175
  * +1: byte: minutes
4176
  * +2: byte: hours
4177
  * +3: byte: reserved (0)
118 diamond 4178
  * for example, 23.59.59 is written as (in hex) 3B 3B 17 00
4179
Date format:
4180
  * +0: byte: day
4181
  * +1: byte: month
4182
  * +2: word: year
4183
  * for example, 25.11.1979 is written as (in hex) 19 0B BB 07
114 mikedld 4184
Remarks:
118 diamond 4185
  * If BDFE contains ASCII name, the length of BDFE is 304 bytes,
4186
    if UNICODE name - 560 bytes. Value of length is aligned
4187
    on 16-byte bound (to accelerate processing in CPU cache).
4188
  * First character after a name is zero (ASCIIZ-string). The further
4189
    data contain garbage.
4190
  * If files in folder were ended before requested number was read,
4191
    the function will read as many as it can, and after that return
4192
    eax=6 (EOF).
114 mikedld 4193
  * Any folder on the disk, except for root, contains two special
118 diamond 4194
    entries "." and "..", identifying accordingly the folder itself
4195
    and the parent folder.
4196
  * The function allows also to read virtual folders "/", "/rd",
4197
    "/fd", "/hd[n]", thus attributes of subfolders are set to 0x10,
4198
    and times and dates are zeroed. An alternative way to get the
4199
    equipment information - subfunction 11 of function 18.
114 mikedld 4200
 
4201
======================================================================
118 diamond 4202
===================== Function 70, subfunction 2 =====================
4203
============ Create/rewrite file with long names support. ============
114 mikedld 4204
======================================================================
4205
Parameters:
118 diamond 4206
  * eax = 70 - function number
4207
  * ebx = pointer to the information structure
4208
Format of the information structure:
4209
  * +0: dword: 2 = subfunction number
114 mikedld 4210
  * +4: dword: 0 (reserved)
4211
  * +8: dword: 0 (reserved)
118 diamond 4212
  * +12 = +0xC: dword: number of bytes to read
4213
  * +16 = +0x10: dword: pointer to data
4214
  * +20 = +0x14: ASCIIZ-name of file, the rules of names forming are
4215
    given in the general description
114 mikedld 4216
    or
4217
  * +20 = +0x14: db 0
118 diamond 4218
  * +21 = +0x15: dd pointer to ASCIIZ-string with file name
114 mikedld 4219
Returned value:
118 diamond 4220
  * eax = 0 - success, otherwise file system error code
4221
  * ebx = number of written bytes (possibly 0)
114 mikedld 4222
Remarks:
118 diamond 4223
  * If a file with given name did not exist, it is created;
4224
    if it existed, it is rewritten.
4225
  * If there is not enough free space on disk, the function will
4226
    write as many as can and then return error code 8.
4227
  * The function is not supported for CD (returns error code 2).
114 mikedld 4228
 
4229
======================================================================
131 diamond 4230
===================== Function 70, subfunction 3 =====================
4231
=========== Write to existing file with long names support. ==========
4232
======================================================================
4233
Parameters:
4234
  * eax = 70 - function number
4235
  * ebx = pointer to the information structure
4236
Format of the information structure:
4237
  * +0: dword: 3 = subfunction number
4238
  * +4: dword: file offset (in bytes)
4239
  * +8: dword: high dword of offset (must be 0 for FAT)
4240
  * +12 = +0xC: dword: number of bytes to write
4241
  * +16 = +0x10: dword: pointer to data
4242
  * +20 = +0x14: ASCIIZ-name of file, the rules of names forming are
4243
    given in the general description
4244
    or
4245
  * +20 = +0x14: db 0
4246
  * +21 = +0x15: dd pointer to ASCIIZ-string with file name
4247
Returned value:
4248
  * eax = 0 - success, otherwise file system error code
4249
  * ebx = number of written bytes (possibly 0)
4250
Remarks:
4251
  * The file must already exist, otherwise function returns eax=5.
4252
  * The only result of write 0 bytes is update in the file attributes
4253
    date/time of modification and access to the current date/time.
4254
  * If beginning and/or ending position is greater than file size
4255
    (except for the previous case), the file is expanded to needed
4256
    size with zero characters.
133 diamond 4257
  * The function is not supported for CD (returns error code 2).
131 diamond 4258
 
4259
======================================================================
133 diamond 4260
============ Function 70, subfunction 4 - set end of file. ===========
4261
======================================================================
4262
Parameters:
4263
  * eax = 70 - function number
4264
  * ebx = pointer to the information structure
4265
Format of the information structure:
4266
  * +0: dword: 4 = subfunction number
4267
  * +4: dword: low dword of new file size
4268
  * +8: dword: high dword of new file size (must be 0 for FAT)
4269
  * +12 = +0xC: dword: 0 (reserved)
4270
  * +16 = +0x10: dword: 0 (reserved)
4271
  * +20 = +0x14: ASCIIZ-name of file, the rules of names forming are
4272
    given in the general description
4273
    or
4274
  * +20 = +0x14: db 0
4275
  * +21 = +0x15: dd pointer to ASCIIZ-string with file name
4276
Returned value:
4277
  * eax = 0 - success, otherwise file system error code
4278
  * ebx destroyed
4279
Remarks:
4280
  * If the new file size is less than old one, file is truncated.
4281
    If the new size is greater than old one, file is expanded with
4282
    characters with code 0. If the new size is equal to old one,
4283
    the only result of call is set date/time of modification and
4284
    access to the current date/time.
4285
  * If there is not enough free space on disk for expansion, the
4286
    function will expand to maximum possible size and then return
4287
    error code 8.
4288
  * The function is not supported for CD (returns error code 2).
4289
 
4290
======================================================================
118 diamond 4291
==== Function 70, subfunction 5 - get information on file/folder. ====
114 mikedld 4292
======================================================================
4293
Parameters:
118 diamond 4294
  * eax = 70 - function number
4295
  * ebx = pointer to the information structure
4296
Format of the information structure:
4297
  * +0: dword: 5 = subfunction number
114 mikedld 4298
  * +4: dword: 0 (reserved)
4299
  * +8: dword: 0 (reserved)
4300
  * +12 = +0xC: dword: 0 (reserved)
118 diamond 4301
  * +16 = +0x10: dword: pointer to buffer for data (40 bytes)
4302
  * +20 = +0x14: ASCIIZ-name of file, the rules of names forming are
4303
    given in the general description
114 mikedld 4304
    or
4305
  * +20 = +0x14: db 0
118 diamond 4306
  * +21 = +0x15: dd pointer to ASCIIZ-string with file name
114 mikedld 4307
Returned value:
118 diamond 4308
  * eax = 0 - success, otherwise file system error code
4309
  * ebx destroyed
4310
Information on file is returned in the BDFE format (block of data
4311
for folder entry), explained in the description of
4312
subfunction 1, but without filename
4313
(i.e. only first 40 = 0x28 bytes).
114 mikedld 4314
Remarks:
118 diamond 4315
  * The function does not support virtual folders such as /, /rd and
4316
    root folders like /rd/1.
114 mikedld 4317
 
4318
======================================================================
118 diamond 4319
===== Function 70, subfunction 6 - set attributes of file/folder. ====
114 mikedld 4320
======================================================================
4321
Parameters:
118 diamond 4322
  * eax = 70 - function number
4323
  * ebx = pointer to the information structure
4324
Format of the information structure:
4325
  * +0: dword: 6 = subfunction number
114 mikedld 4326
  * +4: dword: 0 (reserved)
4327
  * +8: dword: 0 (reserved)
4328
  * +12 = +0xC: dword: 0 (reserved)
118 diamond 4329
  * +16 = +0x10: dword: pointer to buffer with attributes (32 bytes)
4330
  * +20 = +0x14: ASCIIZ-name of file, the rules of names forming are
4331
    given in the general description
114 mikedld 4332
    or
4333
  * +20 = +0x14: db 0
118 diamond 4334
  * +21 = +0x15: dd pointer to ASCIIZ-string with file name
114 mikedld 4335
Returned value:
118 diamond 4336
  * eax = 0 - success, otherwise file system error code
4337
  * ebx destroyed
4338
File attributes are first 32 bytes in BDFE (block of data
4339
for folder entry), explained in the description of subfunction 1
4340
(that is, without name and size of file). Attribute
4341
file/folder/volume label (bits 3,4 in dword +0) is not changed.
4342
Byte +4 (name format) is ignored.
114 mikedld 4343
Remarks:
118 diamond 4344
  * The function does not support virtual folders such as /, /rd and
4345
    root folders like /rd/1.
4346
  * The function is not supported for CD (returns error code 2).
114 mikedld 4347
 
4348
======================================================================
118 diamond 4349
=========== Function 70, subfunction 7 - start application. ==========
114 mikedld 4350
======================================================================
4351
Parameters:
118 diamond 4352
  * eax = 70 - function number
4353
  * ebx = pointer to the information structure
4354
Format of the information structure:
4355
  * +0: dword: 7 = subfunction number
4356
  * +4: dword: flags field:
4357
    * бит 0: start process as debugged
4358
    * other bits are reserved and must be set to 0
4359
  * +8: dword: 0 or pointer to ASCIIZ-string with parameters
114 mikedld 4360
  * +12 = +0xC: dword: 0 (reserved)
4361
  * +16 = +0x10: dword: 0 (reserved)
118 diamond 4362
  * +20 = +0x14: ASCIIZ-name of file, the rules of names forming are
4363
    given in the general description
114 mikedld 4364
    or
4365
  * +20 = +0x14: db 0
118 diamond 4366
  * +21 = +0x15: dd pointer to ASCIIZ-string with file name
114 mikedld 4367
Returned value:
4368
  * eax > 0 - program is loaded, eax contains PID
118 diamond 4369
  * eax < 0 - an error has occured, -eax contains
4370
    file system error code
4371
  * ebx destroyed
114 mikedld 4372
Remarks:
118 diamond 4373
  * Command line must be terminated by the character with the code 0
4374
    (ASCIIZ-string); function takes into account either all characters
4375
    up to terminating zero inclusively or first 256 character
4376
    regarding what is less.
4377
  * If the process is started as debugged, it is created in
4378
    the suspended state; to run use subfunction 5 of function 69.
114 mikedld 4379
 
4380
======================================================================
193 diamond 4381
========== Function 70, subfunction 8 - delete file/folder. ==========
4382
======================================================================
4383
Parameters:
4384
  * eax = 70 - function number
4385
  * ebx = pointer to the information structure
4386
Format of the information structure:
4387
  * +0: dword: 8 = subfunction number
4388
  * +4: dword: 0 (reserved)
4389
  * +8: dword: 0 (reserved)
4390
  * +12 = +0xC: dword: 0 (reserved)
4391
  * +16 = +0x10: dword: 0 (reserved)
4392
  * +20 = +0x14: ASCIIZ-name of file, the rules of names forming are
4393
    given in the general description
4394
    or
4395
  * +20 = +0x14: db 0
4396
  * +21 = +0x15: dd pointer to ASCIIZ-string with file name
4397
Returned value:
4398
  * eax = 0 - success, otherwise file system error code
4399
  * ebx destroyed
4400
Remarks:
4401
  * The function is not supported for CD (returns error code 2).
4402
  * The function can delete only empty folders (attempt to delete
4403
    nonempty folder results in error with code 10, "access denied").
4404
 
4405
======================================================================
321 diamond 4406
============= Function 70, subfunction 9 - create folder. ============
4407
======================================================================
4408
Parameters:
4409
  * eax = 70 - function number
4410
  * ebx = pointer to the information structure
4411
Format of the information structure:
4412
  * +0: dword: 9 = subfunction number
4413
  * +4: dword: 0 (reserved)
4414
  * +8: dword: 0 (reserved)
4415
  * +12 = +0xC: dword: 0 (reserved)
4416
  * +16 = +0x10: dword: 0 (reserved)
4417
  * +20 = +0x14: ASCIIZ-name of folder, the rules of names forming are
4418
    given in the general description
4419
    or
4420
  * +20 = +0x14: db 0
4421
  * +21 = +0x15: dd pointer to ASCIIZ-string with folder name
4422
Returned value:
4423
  * eax = 0 - success, otherwise file system error code
4424
  * ebx destroyed
4425
Remarks:
4426
  * The function is not supported for CD (returns error code 2).
4427
  * The parent folder must already exist.
4428
  * If target folder already exists, function returns success (eax=0).
4429
 
4430
======================================================================
118 diamond 4431
========== Function 71, subfunction 1 - set window caption. ==========
114 mikedld 4432
======================================================================
4433
Parameters:
4434
  * eax = 71 - function number
4435
  * ebx = 1 - subfunction number
118 diamond 4436
  * ecx = pointer to caption string
114 mikedld 4437
Returned value:
118 diamond 4438
  * function does not return value
114 mikedld 4439
Remarks:
118 diamond 4440
  * String must be in the ASCIIZ-format. Disregarding real string
4441
    length, no more than 255 characters are drawn.
4442
  * Pass NULL in ecx to remove caption.
114 mikedld 4443
 
4444
======================================================================
665 diamond 4445
=============== Function 72 - send message to a window. ==============
4446
======================================================================
4447
 
4448
- Subfunction 1 - send message with parameter to the active window. --
4449
Parameters:
4450
  * eax = 72 - function number
4451
  * ebx = 1 - subfunction number
4452
  * ecx = event code: 2 or 3
4453
  * edx = parameter: key code for ecx=2, button identifier for ecx=3
4454
Returned value:
4455
  * eax = 0 - success
4456
  * eax = 1 - buffer is full
4457
 
4458
======================================================================
118 diamond 4459
=============== Function -1 - terminate thread/process ===============
114 mikedld 4460
======================================================================
4461
Parameters:
118 diamond 4462
  * eax = -1 - function number
114 mikedld 4463
Returned value:
118 diamond 4464
  * function does not return neither value nor control
114 mikedld 4465
Remarks:
118 diamond 4466
  * If the process did not create threads obviously, it has only
4467
    one thread, which termination results in process termination.
4468
  * If the current thread is last in the process, its termination
4469
    also results in process terminates.
4470
  * This function terminates the current thread. Other thread can be
4471
    killed by call to subfunction 2 of function 18.
114 mikedld 4472
 
4473
======================================================================
4474
=========================== List of events ===========================
4475
======================================================================
118 diamond 4476
Next event can be retrieved by the call of one from functions 10
4477
(to wait for event), 11 (to check without waiting), 23
4478
(to wait during the given time).
4479
These functions return only those events, which enter into a mask set
4480
by function 40. By default it is first three,
4481
there is enough for most applications.
114 mikedld 4482
Codes of events:
118 diamond 4483
  * 1 = redraw event (is reset by call to function 0)
4484
  * 2 = key on keyboard is pressed (acts, only when the window is
4485
    active) or hotkey is pressed; is reset, when all keys from
4486
    the buffer are read out by function 2
4487
  * 3 = button is pressed, defined earlier by function 8
4488
    (or close button, created implicitly by function 0;
4489
    minimize button is handled by the system and sends no message;
4490
    acts, only when the window is active;
4491
    is reset when all buttons from the buffer
4492
    are read out by function 17)
4493
  * 4 = reserved (in current implementation never comes even after
4494
    unmasking by function 40)
4495
  * 5 = the desktop background is redrawed (is reset automatically
4496
    after redraw, so if in redraw time program does not wait and
4497
    does not check events, it will not remark this event)
4498
  * 6 = mouse event (something happened - button pressing or moving;
4499
    is reset at reading)
4500
  * 7 = IPC event (see function 60 -
4501
    Inter Process Communication; is reset at reading)
4502
  * 8 = network event (is reset at reading)
4503
  * 9 = debug event (is reset at reading; see
4504
    debug subsystem)
4505
  * 16..31 = event with appropriate IRQ
4506
    (16=IRQ0, 31=IRQ15) (is reset after reading all IRQ data)
114 mikedld 4507
 
4508
======================================================================
118 diamond 4509
=================== Error codes of the file system ===================
114 mikedld 4510
======================================================================
118 diamond 4511
  * 0 = success
4512
  * 1 = base and/or partition of a hard disk is not defined
4513
    (by subfunctions 7, 8 of function 21)
4514
  * 2 = function is not supported for the given file system
4515
  * 3 = unknown file system
448 diamond 4516
  * 4 = reserved, is never returned in the current implementation
118 diamond 4517
  * 5 = file not found
4518
  * 6 = end of file, EOF
4519
  * 7 = pointer lies outside of application memory
4520
  * 8 = disk is full
4521
  * 9 = FAT table is destroyed
114 mikedld 4522
  * 10 = access denied
118 diamond 4523
  * 11 = device error
4524
Application start functions can return also following errors:
4525
  * 30 = 0x1E = not enough memory
4526
  * 31 = 0x1F = file is not executable
4527
  * 32 = 0x20 = too many processes