0,0 → 1,4285 |
SYSTEM FUNCTIONS of OS Kolibri 0.5.8.1 |
|
Number of the function is located in the register eax. |
The call of the system function is carried out by the command "int 0x40". |
All registers, except for obviously indicated in returned value, |
including the register of flags eflags, are saved. |
|
|
====================================================================== |
============== Function 0 - define and draw the window. ============== |
====================================================================== |
Defines an application window. Draws a frame of the window, header and |
working area. For windows with ñêèíîì defines standard buttons of closing |
and minimization. |
Parameters: |
* eax = 0 - number of the function |
* ebx = [coordinate on axis x]*65536 + [size on axis x] |
* ecx = [coordinate on axis y]*65536 + [size on axis y] |
* edx = 0xXYRRGGBB, where: |
* Y = style of the window: |
* Y=0 - type I - window of the fixed sizes |
* Y=1 - only to define window area, nothing to draw |
* Y=2 - type II - window with changed sizes |
* Y=3 - window with skinned |
* other possible values (from 4 up to 15) reserved, |
function call with such Y is ignored |
* RR, GG, BB = accordingly red, green, blue |
colours of a working area of the window |
(is ignored for style Y=2) |
* X = DCBA (bits) |
* A = 1 - window has caption; if Y=3, caption string address could be passed in edi, |
otherwise use function 71 subfunction 1 |
* B = 1 - draw all graphics primitives relative to window client area |
* C - reserved |
* D = 8 - fill client area with gradient |
other values are reserved |
The following parameters are intended for windows of a type I and II, |
and ignored for styles Y=1,3: |
* esi = 0xXYRRGGBB - colour of header |
* RR, GG, BB define colour |
* Y=0 - usual window, Y=1 - unmovable window |
* X defines a gradient of header: X=0 - no gradient, |
X=8 - usual gradient, |
for windows of a type II X=4 - negative gradient |
* other values X and Y reserved |
* edi = 0x00RRGGBB - colour of a frame |
Returned value: |
* function does not return value |
Remarks: |
* Location and the sizes of the window are installed by the first call of |
this function and are ignored at subsequent; for change of location |
and/or of sizes already of created window use function 67. |
* If to use windows of appropriate styles, location and - or the sizes of |
the window can vary by the user. |
Current location and the sizes can be obtained by function 9. |
* The window should be located on the screen. If the transferred coordinates |
nd the sizes do not satisfy to this condition, appropriate coordinate |
(or, probably, is considered both) as zero, and if also it does not help, |
the appropriate size (or, probably, both) is installed in a size of the |
screen. |
|
Further we shall designate xpos, ypos, xsize, ysize - values transmitted |
in ebx, ecx. The coordinates are resulted concerning the left upper corner |
of the window, which, thus, is set as (0,0), coordinate of the right lower |
corner essence (xsize, ysize). |
* The sizes of the window are understood in sense of coordinates of the |
right lower corner. This concerns and to all other functions. It means, |
that the real sizes on 1 pixel are more. |
* Look of the window of a type I: |
* draw external frame of colour indicated in edi, |
in width 1 pixel |
* draw header - rectangle with the left upper corner (1,1) and right lower |
(xsize-1, min (25, ysize)) colour indicated in esi |
(in view of a gradient) |
* If ysize > =26, the working area of the window - rectangle with the left |
upper corner (1,21) and right lower |
(xsize-1, ysize-1) (sizes (xsize-1) * (ysize-21)) - colour |
indicated in edx (in view of a gradient) is painted over |
* Look of the window of a type Y=1: |
* completely defined by the application |
* Look of the window of a type II: |
* draw external frame of width 1 pixel of the "shaded" colour |
edi (all making colours decrease twice) |
* drawn intermediate frame of width 3 pixels of colour edi |
* draw internal frame of width 1 pixel |
"shaded" colour edi |
* draw header - rectangle with the left upper corner (4,4) |
and right lower (xsize-4,min(20,ysize)) colour, indicated â esi |
(in view of a gradient) |
* If ysize > =26, the working area of the window is painted over - |
rectangle with the left upper corner (5,20) and right lower |
(xsize-5,ysize-5) - colour indicated in edx (in view of a gradient) |
* Look of the window with skinned: |
* draw external frame of width 1 pixel |
colour 'outer' from skin |
* draw intermediate framework of width 3 pixels |
colour 'frame' from skin |
* draw internal framework of width 1 pixel |
colour 'inner' from skin |
* draw header (on pictures from skin) in a rectangle |
(0,0) - (xsize,_skinh-1) |
* If ysize > =26, the working area of the window is painted over - |
rectangle with the left upper corner (5, _skinh) and right lower |
(xsize-5,ysize-5) - colour indicated in edx (in view of a gradient) |
* two standard buttons are defined: closings and minimizations |
(see function 8) |
* value _skinh is accessible as result of call |
subfunction 4 functions 48 |
|
====================================================================== |
================= Function 1 - put a point in the window. ============ |
====================================================================== |
Parameters: |
* eax = 1 - number of the function |
* ebx = x-coordinate (concerning the window) |
* ecx = y-coordinate (concerning the window) |
* edx = 0x00RRGGBB - colour of a point |
edx = 0x01xxxxxx - to invert colour of a point |
(low 24 bits ignored) |
Returned value: |
* function does not return value |
|
====================================================================== |
======== Function 2 - receive the code of the pressed key. =========== |
====================================================================== |
Takes away the code of the pressed key from the buffer. |
Parameters: |
* eax = 2 - number of the function |
Returned value: |
* if the buffer is empty, comes back eax=1 |
* If the buffer is nonblank, that comes back al=0, ah=code of the pressed key, |
high word of the register eax is set zero |
* If there is "hotkey", comes back |
al=2, ah=scancode of the pressed key (0 for direction keys), |
high word of the register eax contains a status of direction keys |
at the moment of pressing a hotkey |
Remarks: |
* There is a common system buffer of the pressed keys by a size of 120 bytes, |
organized as queue. |
* There is one more common system buffer on 120 "hotkey". |
* By call of this function the application with the inactive window |
considers, that the buffer of the pressed keys is empty. |
* By default this function returns ASCII-codes; to switch to the mode |
scancode (and back) it is possible with usage of the function 66. |
However, the hotkey always come back as scancodes. |
* Ffind out, what keys correspond to what codes, is possible, having started |
the applications keyascii and scancode. |
* Scancodes come back directly by keyboard and are fixed; ASCII-codes turn |
out with usage of the conversion tables, which can be installed |
subfunction 2 functions 21 and to read subfunction 2 functions 26. |
* As a consequence, ASCII-codes take into account current keyboard layout |
(rus/en) as against scancodes. |
* The information only about those hotkeys acts which were defined by this |
stream subfunction 4 functions 66. |
|
====================================================================== |
================ Function 3 - get system time. ======================= |
====================================================================== |
Parameters: |
* eax = 3 - number of the function |
Returned value: |
* eax = 0x00SSMMHH, where HH:MM:SS = Hours:Minutes:Seconds |
* each unit comes back as BCD-number, for example, |
for time 23:59:59 result will be 0x00595923 |
Remarks: |
* Look also subfunction 9 functions 26 - obtaining of time from the moment |
of start of the system; it in many cases is more convenient, as returns |
simply DWORD-value of the counter of time. |
* System time can be installed by the function 22. |
|
====================================================================== |
================ Function 4 - draw text in the window. =============== |
====================================================================== |
Can output both strings with given length and NULL-terminated strings |
(0x0) - ASCIIZ(string db 'text',0). To draw ASCIIZ string, pass -1 |
in esi (mov esi,-1). |
Parameters: |
* eax = 4 - number of the function |
* ebx = [coordinate on axis x]*65536 + [coordinate on axis y] |
* ecx = 0xX0RRGGBB, where |
* RR, GG, BB set colour of the text |
* X sets the used font: 0=system monowide, |
1=system font of variable width |
* edx = pointer by the beginning of string |
* esi = length of string, should be no more 255 |
Returned value: |
* function does not return value |
Remarks: |
* The first system font is read out at loading from the file char.mt, |
second system font - from char2.mt. |
* Both fonts have height 9 pixels, width of the monowide font |
is equal 6 pixels. |
|
====================================================================== |
========================= Function 5 - pause. ========================= |
====================================================================== |
Delays execution of the program on the given time. |
Parameters: |
* eax = 5 - number of the function |
* ebx = time in the 1/100 of second |
Returned value: |
* function does not return value |
Remarks: |
* The transmission ebx=0 does not transfer handle the following process |
and at all does not make any operations. If really it is required to |
transfer handle to the following process (to complete a current time |
slice), use subfunction of 1 function 68. |
* At current realization there will be an immediate return from the function, |
if the addition ebx with current value of the counter of time will call |
32-bit overflow. |
|
====================================================================== |
============== Function 6 - read the file with ramdisk. ============== |
====================================================================== |
Parameters: |
* eax = 6 - number of the function |
* ebx = pointer on a filename |
* ecx = number of the start block, beginning from 1; |
ecx=0 - read from a beginning of the file (same, as ecx=1); |
* edx = number of blocks for reading; |
edx=0 - read one block (same, as edx=1) |
* esi = pointer on area of memory, where the data will be written |
Returned value: |
* eax = file size in bytes, if the file is successfully read |
* eax = -1, if the file is not retrieved |
Remarks: |
* The given function is out-of-date; the function 70 allows to fulfil |
the same operations with the extended possibilities. |
* Block = 512 bytes. |
* For reading all file it is possible to specify the certainly large value |
in edx, for example, edx = -1; but in this case be ready that the program |
"will fall", if the file will appear too large and "will not be placed" in |
memory of the program. |
* The filename should be or in the format 8+3 characters (first 8 characters |
- purely name, last 3 - extension, the short names and extensions are |
supplemented by blanks), or in the format 8.3 characters |
"FILE.EXT" / "FILE.EX " (name no more than 8 characters, point, |
extension 3 characters supplemented if necessary by blanks). |
The filename should be written by capital letters. The completing |
character with the code 0 is not necessary (ASCIIZ-string). |
* Current implementation ramdisk does not support the directory. |
|
====================================================================== |
=============== Function 7 - draw image in the window. =============== |
====================================================================== |
Parameters: |
* eax = 7 - number of the function |
* ebx = pointer on the image in the format BBGGRRBBGGRR... |
* ecx = [size on axis x]*65536 + [size on axis y] |
* edx = [coordinate on axis x]*65536 + [coordinate on axis y] |
Returned value: |
* function does not return value |
Remarks: |
* Coordinates of the image are coordinates of the upper left corner of the |
image concerning the window. |
* Size of the image in bytes is 3*xsize*ysize. |
|
====================================================================== |
=============== Function 8 - define/delete the button. =============== |
====================================================================== |
Parameters for îïðåäåëåíèÿ êíîïêè: |
* eax = 8 - number of the function |
* ebx = [coordinate on axis x]*65536 + [size on axis x] |
* ecx = [coordinate on axis y]*65536 + [size on axis y] |
* edx = 0xXYnnnnnn, where: |
* nnnnnn = identifier of the button |
* high (31-st) bit edx is reset |
* if 30-th bit edx is installed - to not draw the button |
* If 29-th bit edx is installed - to not draw a frame |
at pressing the button |
* esi = 0x00RRGGBB - colour of the button |
Parameters for deleting the button: |
* eax = 8 - number of the function |
* edx = 0x80nnnnnn, where nnnnnn - identifier of the button |
Returned value: |
* function does not return value |
Remarks: |
* Sizes of the button should be more than 0 and less than 0x8000. |
* For windows with skin at definition of the window (call of 0-th function) |
there are two standard buttons - closing of the window with the |
identifier 1 and minimization of the window with the identifier 0xffff. |
* The creation of two buttons with identical identifiers is admitted. |
* The button with the identifier 0xffff at pressing is interpreted by the |
system as the button of minimization, the system handles such pressing |
independently, not accessing to the application. In rest it is |
the usual button. |
* Total of buttons for all applications is limited to number 4095. |
|
====================================================================== |
========== Function 9 - information on thread of execution. ========== |
====================================================================== |
Parameters: |
* eax = 9 - number of the function |
* ebx = pointer on the buffer of a size 1 Kb |
* ecx = number of the slot of thread |
ecx = -1 - get information on current thread |
Returned value: |
* eax = maximum number of the slot of thread |
* buffer, which specifies ebx, contains the following information: |
* +0: dword: usage of the processor (how many clock ticks per one second |
leaves on fulfilment of this thread) |
* +4: word: position of the window of thread in the window stack |
* +6: word: (there is no ratio to the requested thread) |
number of the slot thread, which window is in the window stack |
in a position ecx |
* +8: word: reserved |
* +10 = +0xA: 11 bytes: name of the process |
(name of an appropriate executable file in the format 8+3) |
* +21 = +0x15: byte: alignment, this byte does not vary |
* +22 = +0x16: dword: address of the process in memory |
* +26 = +0x1A: dword: size of used memory - 1 |
* +30 = +0x1E: dword: identifier (PID/TID) |
* +34 = +0x22: dword: coordinate of the window thread on axis x |
* +38 = +0x26: dword: coordinate of the window thread on axis y |
* +42 = +0x2A: dword: size of the window thread on axis x |
* +46 = +0x2E: dword: size of the window thread on axis y |
* +50 = +0x32: word: status of the slot thread: |
* 0 = thread worked |
* 1 = thread paused |
* 2 = thread paused at the moment of waiting event |
* 3 = thread completed as a result of function call -1 or |
under duress as a consequence of call subfunction 2 functions 18 |
or termination of the system |
* 4 = thread is completed as a result of exception |
* 5 = thread wait event |
* 9 = requested slot is free, |
all other information on the slot is not meaningful |
Remarks: |
* Slots are numbered with 1. |
* Returned value not is a total number of streams, as there are free slots. |
* Ïðè ñîçäàíèè ïðîöåññà àâòîìàòè÷åñêè ñîçäàåòñÿ thread âûïîëíåíèÿ. |
* Function produces the information on thread. Each process has even one |
thread. One process can create some thread, in this case everyone thread |
receives the slot, and the fields +10, +22, +26 in these slots coincide. |
For the applications there is no common way to define, whether two thread |
belong to one process. |
* Active window - window which is taking place on top of the window stack, |
it receives the messages on a keyboard input. For it the position in the |
window stack coincides with returned value. |
* Slot 1 corresponds to special thread of an operating system, for which: |
* window is in the bottom of the window stack, the fields +4 and +6 |
contain value 1 |
* Nname of the process - "OS/IDLE" (supplemented by blanks) |
* address of the process is equal memory 0, size of used memory |
16 Mb (0x1000000) |
* PID=1 |
* coordinates and sizes of the window conditionally rely equal 0 |
* status of the slot - always 0 (worked) |
* The execution time adds of time leaving on purely operation, and down |
time in waiting interruption (which can be received by call |
subfunction 4 functions 18). |
* Since the slot 2, the usual applications are placed. |
* Usual applications are placed in memory to the address 0x10000000 |
(constant of a kernel std_application_base_address). |
Intersection does not occur, as for each process the own page table. |
* At creation thread to it are assigned the slot in the system table and |
identifier (Process/Thread IDentifier = PID/TID), which for given thread |
do not vary in the subsequent time. |
After completion thread its slot can be anew used for another thread. |
The identifier thread can not be assigned to other stream even after |
completion first. |
Identifiers, assigned to new thread, monotonously grow. |
* If thread yet has not defined the window by function call 0, |
a location and the sizes of this window rely in zero. |
* In the given moment the part of the buffer by a size 52 = 0x34 of byte |
is used only. Nevertheless it is recommended to use the buffer |
by a size 1 KB for the future compatibility, in the future some fields |
can be added. |
|
====================================================================== |
====================== Function 10 - wait event. ===================== |
====================================================================== |
If the message queue is empty, waits for appearance of the message in queue. |
In such status thread does not receive CPU time. |
Then reads out the message from queue. |
|
Parameters: |
* eax = 10 - number of the function |
Returned value: |
* eax = event (look the list of events) |
Remarks: |
* Those events are taken into account only which enter into a mask installed |
by the function 40. By default it is events redraw, pressing keys |
and buttons. |
* For check, whether there is a message in queue, use the function 11. |
To wait for the no more defined time, use the function 23. |
|
======================================================================= |
= Function 11 - check up, whether there is an event, without waiting. = |
======================================================================= |
If in a message queue there is any event, reads out and returns it. |
If queue is empty, returns zero. |
Parameters: |
* eax = 11 - number of the function |
Returned value: |
* eax = 0 - message queue is empty |
* èíà÷å eax = event (look the list of events) |
Remarks: |
* Those events are taken into account only which enter into a mask installed |
by the function 40. By default it is events redraw, pressing keys |
and buttons. |
* For waiting appearance of event in queue, use the function 10. |
To wait for the no more defined time, use the function 23. |
|
====================================================================== |
========= Function 12 - begin/complete redraw of the window. ========= |
====================================================================== |
|
---------- Subfunction 1 - begin redraw of the window. --------------- |
Parameters: |
* eax = 12 - number of the function |
* ebx = 1 - number subfunction |
Returned value: |
* function does not return value |
|
--------- Subfunction 2 - complete redraw of the window. ------------- |
Parameters: |
* eax = 12 - number of the function |
* ebx = 2 - number subfunction |
Returned value: |
* function does not return value |
Remarks: |
* Function of a beginning redraw all deletes defined by the |
function 8 buttons, they should be defined again. |
|
====================================================================== |
============ Function 13 - draw a rectangle in the window. =========== |
====================================================================== |
Parameters: |
* eax = 13 - number of the function |
* ebx = [coordinate on axis x]*65536 + [size on axis x] |
* ecx = [coordinate on axis y]*65536 + [size on axis y] |
* edx = colour 0xRRGGBB èëè 0x80RRGGBB for a gradient of filling |
Returned value: |
* function does not return value |
Remarks: |
* Coordinates are understood as coordinates of the left upper corner |
of a rectangle concerning the window. |
|
====================================================================== |
================ Function 14 - get sizes of the screen. ============== |
====================================================================== |
Parameters: |
* eax = 14 - number of the function |
Returned value: |
* eax = [xsize]*65536 + [ysize], where |
* xsize = x-coordinate of the right lower corner of the screen = |
size on a horizontal - 1 |
* ysize = y-coordinate of the right lower corner of the screen = |
size on a vertical - 1 |
Remarks: |
* Look also subfunction 5 functions 48 - to receive sizes of |
a working area of the screen. |
|
======================================================================== |
= Function 15, subfunction 1 - install a size of the background image. = |
======================================================================== |
Parameters: |
* eax = 15 - number of the function |
* ebx = 1 - number subfunction |
* ecx = width of the image |
* edx = height of the image |
Returned value: |
* function does not return value |
Remarks: |
* Checks on a correctness is not done. The installation of the too large |
values will result that the background will be entered with the data abroad |
of buffer of the background map. The size of the buffer = 0x160000-0x10, |
that corresponds to maximum sizes 800*600. (800*600*3=0x15F900) |
* For upgrade of the screen (after completion of a series of commands |
working with a background) call subfunction 3 redraw of a background. |
* There is a pair function of get of sizes of the background image - |
subfunction 1 function 39. |
|
====================================================================== |
= Function 15, subfunction 2 - put a point on the background image. == |
====================================================================== |
Parameters: |
* eax = 15 - number of the function |
* ebx = 2 - number subfunction |
* ecx = offset |
* edx = colour of a point 0xRRGGBB |
Returned value: |
* function does not return value |
Remarks: |
* Offset for a point with coordinates (x, y) is calculated as |
(x+y*xsize)*3. |
* If the indicated offset exceeds 0x160000-16 = |
1.375 Mb - 16 bytes, call is ignored. |
* For upgrade of the screen (after completion of a series of commands |
working with a background) call subfunction 3 redraw of a background. |
* There is a pair function of obtaining of a point from the background |
image - subfunction 2 functions 39. |
|
====================================================================== |
=========== Function 15, subfunction 3 - redraw background. ========== |
====================================================================== |
Parameters: |
* eax = 15 - number of the function |
* ebx = 3 - number subfunction |
Returned value: |
* function does not return value |
|
========================================================================= |
= Function 15, subfunction 4 - set the mode of drawing of a background. = |
========================================================================= |
Parameters: |
* eax = 15 - number of the function |
* ebx = 4 - number subfunction |
* ecx = mode of drawing: |
* 1 = tile |
* 2 = stretch |
Returned value: |
* function does not return value |
Remarks: |
* For upgrade of the screen (after completion of a series of commands |
working with a background) call subfunction 3 redraw of a background. |
* There is a pair command of obtaining of the mode redraw of a background |
- subfunction 4 functions 39. |
|
=========================================================================== |
= Function 15, subfunction 5 - place the block of pixels on a background. = |
=========================================================================== |
Parameters: |
* eax = 15 - number of the function |
* ebx = 5 - number subfunction |
* ecx = pointer on the data in the format BBGGRRBBGGRR... |
* edx = offset in data of the background image |
* esi = size given in bytes = 3 * number of pixels |
Returned value: |
* function does not return value |
Remarks: |
* If the block gets out abroad 0x160000-16 = 1.375 Mb - 16 bytes, |
the call is ignored. |
* Colour of each pixel is stored as 3 bytes the value BBGGRR. |
* Pixels of the background image are written sequentially from left to right, |
from above downwards. |
* Offset of a pixel with coordinates (x,y) it (x+y*xsize)*3. |
* For upgrade of the screen (after completion of a series of commands |
working with a background) call subfunction 3 redraw of a background. |
|
====================================================================== |
============= Function 16 - save ramdisk on a diskette. ============== |
====================================================================== |
Parameters: |
* eax = 16 - number of the function |
* ebx = 1 èëè ebx = 2 - on what floppy to save |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - error |
|
====================================================================== |
============== Function 17 - get code of pressed button. ============= |
====================================================================== |
Takes away the code of the pressed button from the buffer. |
Parameters: |
* eax = 17 - number of the function |
Returned value: |
* If the buffer is empty, comes back eax=1 |
* If the buffer is nonblank, comes back al=0, the high 24 bits eax contain |
the identifier of the button (in particular, in ah there is a low byte of |
the identifier; if all buttons have the identifier, smaller 256, for |
distinguishing there is enough ah) |
Remarks: |
* "Buffer" keeps only one button, at pressing the new button the information |
about old is lost. |
* By call of this function by the application with the inactive window the |
answer " the buffer comes back is empty ". |
|
====================================================================== |
============ Function 18, subfunction 1 - shutdown system. =========== |
====================================================================== |
Parameters: |
* eax = 18 - number of the function |
* ebx = 1 - number subfunction |
Returned value: |
* Always comes back eax = 0 as tag of success |
Remarks: |
* On last step there is a menu of quit waiting responses of the user. |
* Look also subfunction 9, termination of the system with the parameter |
to speed up choice in the menu of an exit. |
|
====================================================================== |
= Function 18, subfunction 2 - complete process/thread on the slot. == |
====================================================================== |
Parameters: |
* eax = 18 - number of the function |
* ebx = 2 - number subfunction |
* ecx = number of the slot of process/thread |
Returned value: |
* function does not return value |
Remarks: |
* It is impossible to complete thread of an operating system OS/IDLE |
(number of the slot 1), it is possible to complete |
any usual thread/process. |
* See also subfunction 18 - completion of process/thread |
with the given identifier. |
|
========================================================================= |
= Function 18, subfunction 3 - do to the active window selected thread. = |
========================================================================= |
Parameters: |
* eax = 18 - number of the function |
* ebx = 3 - number subfunction |
* ecx = number of the slot thread |
Returned value: |
* function does not return value |
Remarks: |
* At the instruction correct, but nonexistent slot any window is made active. |
* Find out, what window is active, is possible by call subfunction 7. |
|
============================================================================== |
Function 18, subfunction 4 - get counter of empty clock ticks per one second. |
============================================================================== |
Empty clock ticks are understood as time, in which the processor stands idle |
in waiting interruption (in the instruction hlt). |
|
Parameters: |
* eax = 18 - number of the function |
* ebx = 4 - number subfunction |
Returned value: |
* eax = value of the counter of empty clock ticks per one second |
|
====================================================================== |
=========== Function 18, subfunction 5 - get cpu frequency. ========== |
====================================================================== |
Parameters: |
* eax = 18 - number of the function |
* ebx = 5 - number subfunction |
Returned value: |
* eax = cpu frequency (modulo 2^32 clock ticks = 4GHz) |
|
===================================================================== |
== Function 18, subfunction 6 - save ramdisk in file on hard disk. == |
===================================================================== |
Parameters: |
* eax = 18 - number of the function |
* ebx = 6 - number subfunction |
* ecx defines path to the file: |
* 1 = in the directory "/KOLIBRI" |
* 2 = in the root |
* 3 = edx specifies path (names of folders in the format 8+3, divided '/') |
Returned value: |
* eax = 0 - successfully |
* differently eax = an error code of a file system |
Remarks: |
* Filename is fixed, "menuet.img" (global variable of |
a kernel image_save from preboot.inc) |
* On what partition what disk the file will be saved, is defined |
subfunction 7 and subfunction 8 functions 21. |
* All directories in the indicated path should exist, differently will |
return value 5, " the file is not retrieved ". |
|
====================================================================== |
====== Function 18, subfunction 7 - get number of active window. ===== |
====================================================================== |
Parameters: |
* eax = 18 - number of the function |
* ebx = 7 - number subfunction |
Returned value: |
* eax = number of active window (number of the slot thread, which window |
is active) |
Remarks: |
* Active window is at the top of the window stack and receives the messages |
on all keyboard input. |
* Make the window active it is possible by call subfunction 3. |
|
======================================================================= |
==== Function 18, subfunction 8 - disable/enable a speaker sound . ==== |
======================================================================= |
At the disconnected sound the calls subfunction 55 functions 55 are ignored. |
At included - are routed on built - in speaker. |
|
--------------- Subsubfunction 1 - get a status. ---------------- |
Parameters: |
* eax = 18 - number of the function |
* ebx = 8 - number subfunction |
* ecx = 1 - number subsubfunction |
Returned value: |
* eax = 0 - sound speaker is enabled; 1 - is disabled |
|
-------------- Subsubfunction 2 - switch a status. -------------- |
Switches statuses of disable/enable. |
Parameters: |
* eax = 18 - number of the function |
* ebx = 8 - number subfunction |
* ecx = 2 - number subsubfunction |
Returned value: |
* function does not return value |
|
=========================================================================== |
= Function 18, subfunction 9 - shutdown of the system with the parameter. = |
=========================================================================== |
Parameters: |
* eax = 18 - number of the function |
* ebx = 9 - number subfunction |
* ecx = parameter: |
* 1 = On last step of shutdown to save ramdisk on a diskette then to |
output the menu of an exit and to request of the user further operations |
* 2 = switch off the computer |
* 3 = reboot the computer |
* 4 = restart a kernel from the file kernel.mnt on ramdisk |
Returned value: |
* At incorrect ecx the registers do not vary (i.e. eax=18) |
* By correct call tag of success eax=0 always comes back |
Remarks: |
* It is not necessary to rely on returned value by incorrect call, |
it can vary in the subsequent versions of a kernel. |
* It is possible to use subfunction 1, that on last step of termination |
the user himself has selected, that it is necessary. |
* It is not recommended to use value ecx=1 (to not irritate the user with |
excessive questions); to save ramdisk on a diskette it is possible by the |
function 16 (which admits specification, on which diskette to write), and |
to complete operation from the menu of an output(exit) it is possible |
already mentioned subfunction 1. |
|
======================================================================= |
====== Function 18, subfunction 10 - minimize application window. ===== |
======================================================================= |
Turns off the own window. |
Parameters: |
* eax = 18 - number of the function |
* ebx = 10 - number subfunction |
Returned value: |
* function does not return value |
Remarks: |
* The minimized window from the point of view of the function 9 saves |
a location and sizes. |
* Restoring of an application window occurs at activation subfunction 3. |
* Usually there is no necessity obviously to turn off/restore the window: |
turn off of the window is carried out by the system at pressing the button |
of minimization (which for windows with SKIN is defined automatically by |
function 0, for windows without SKIN it is possible to define by the |
function 8), restoring - application @panel. |
|
====================================================================== |
==================== Function 18, subfunction 11 ===================== |
================ Get information on a disk subsystem. ================ |
====================================================================== |
Parameters: |
* eax = 18 - number of the function |
* ebx = 11 - number subfunction |
* ecx = type of the table: |
* 1 = short version, 10 bytes |
* 2 = full version, 65536 bytes |
* edx = pointer on the buffer (in the application) for table |
Returned value: |
* function does not return value |
Format of the table: the short version: |
* +0: byte: information about FDD's (drives for diskettes), AAAABBBB, |
where AAAA sets type of the first drive, BBBB - second disk agrees |
to the following list: |
* 0 = there is no drive |
* 1 = 360Kb, 5.25'' |
* 2 = 1.2Mb, 5.25'' |
* 3 = 720Kb, 3.5'' |
* 4 = 1.44Mb, 3.5'' |
* 5 = 2.88Mb, 3.5'' (such diskettes already are not used) |
For example, for the standard configuration from one 1.44-drive here will |
be 40h, and for a case 1.2Mb on A: and 1.44Mb on B: the value appears 24h. |
* +1: byte: information about hard disks and CD - drives, AABBCCDD, |
where AA corresponds to the controller IDE0, ..., DD - IDE3: |
* 0 = device is absent |
* 1 = hard disk |
* 2 = CD - drive |
For example, in a case HD on IDE0 and CD on IDE2 here will be 48h. |
* +2: 4 db: Number of the retrieved sections on hard disks with |
accordingly IDE0..., IDE3. |
At absence of the hard disk on IDEx appropriate byte zero, at presence |
shows number of the recognized partitions, which can and to not be (if the |
drive is not formatted or if the file system is not supported). In the |
current version of a kernel for hard disks are supported only FAT16 |
and FAT32. |
* +6: 4 db: reserved |
Format of the table: the complete version: |
* +0: 10 db: same, as well as in the short version |
* +10: 100 db: data for the first partition |
* +110: 100 db: data for the second partition |
* ... |
* +10+100*(n-1): 100 db: data for the last partition |
The sections are located in the following order: at first sequentially all |
recognized partitions on HD on IDE0 (if are), then on HD on IDE1 (if is) |
etc. up to IDE3. |
Format of the information about partition (while is supported only FAT): |
* +0: dword: first physical sector of the partition |
* +4: dword: last physical sector of the partition |
(belongs to partition) |
* +8: dword: sectors in one copy FAT |
* +12 = +0xC: dword: number of copies FAT |
* +16 = +0x10: dword: number of sectors in a cluster |
* +20 = +0x14: dword: byte in sector; the current implementation expects, |
that here 0x200 = 512 |
* +24 = +0x18: dword: first cluster of the root in FAT32, 0 for FAT16 |
* +28 = +0x1C: dword: first physical sector FAT |
* +32 = +0x20: dword: first physical sector of the root for FAT16, |
is ignored for FAT32 |
* +36 = +0x24: dword: number of sectors in the root for FAT16, 0 for FAT32 |
* +40 = +0x28: dword: physical sector of a beginning of area of the data |
* +44 = +0x2C: dword: maximum number of a cluster |
* +48 = +0x30: dword: physical sector of the information about a file system |
for FAT32, is ignored for FAT16 |
* +52 = +0x34: dword: value used as boundary of special values in FAT |
* +56 = +0x38: dword: value used for bad clusters in FAT |
* +60 = +0x3C: dword: Value used as the end mark at recording of a chain |
in FAT |
* +64 = +0x40: dword: mask superimposed on a unit FAT |
* +68 = +0x44: byte: type of a file system: 16 or 32 |
* +69 = +0x45: 31 db: reserved |
Remarks: |
* Short table can be used for obtaining the information about available |
devices. |
* First two information fields about partition in the complete version of |
the table inform parameters of the unit which has stayed - parameters of |
a file system FAT. For other file systems (when they will be supported) |
information, specific to a file system, naturally, there will be another, |
but first two fields will be saved constant. |
|
====================================================================== |
======== Function 18, subfunction 13 - get version of a kernel. ====== |
====================================================================== |
Parameters: |
* eax = 18 - number of the function |
* ebx = 13 - number subfunction |
* ecx = pointer on the buffer (not less than 16 bytes), where the |
information will be placed |
Returned value: |
* function does not return value |
Structure of the buffer: |
db a,b,c,d for version a.b.c.d |
db UID_xxx: one of UID_NONE=0, UID_MENUET=1, UID_KOLIBRI=2 |
db 'name',0 - ASCIIZ-string with a name |
For kernel Kolibri 0.5.8.1: |
db 0,5,8,1 |
db 2 |
db 'Kolibri',0 |
|
========================================================================= |
====================== Function 18, subfunction 14 ====================== |
= Expect a beginning of retrace of a ray of scanning of screen monitor. = |
========================================================================= |
Parameters: |
* eax = 18 - number of the function |
* ebx = 14 - number subfunction |
Returned value: |
* eax = 0 as tag of success |
Remarks: |
* Function is intended only for the active high-efficiency graphics |
applications; is used for smooth output of a graphics. |
|
============================================================================ |
= Function 18, subfunction 15 - place a mouse pointer in centre of screen. = |
============================================================================ |
Parameters: |
* eax = 18 - number of the function |
* ebx = 15 - number subfunction |
Returned value: |
* eax = 0 as tag of success |
|
====================================================================== |
====================== Function 18, subfunction 16 =================== |
====================== Get a size of the free RAM. =================== |
====================================================================== |
Parameters: |
* eax = 18 - number of the function |
* ebx = 16 - number subfunction |
Returned value: |
* eax = size of free memory in kilobytes |
|
====================================================================== |
====================== Function 18, subfunction 17 =================== |
====================== Get a size of the amount RAM. ================= |
====================================================================== |
Parameters: |
* eax = 18 - number of the function |
* ebx = 17 - number subfunction |
Returned value: |
* eax = common size of amount memory in kilobytes |
|
====================================================================== |
====================== Function 18, subfunction 18 =================== |
============= complete process/thread on the identifier. ============= |
====================================================================== |
Parameters: |
* eax = 18 - number of the function |
* ebx = 18 - number subfunction |
* ecx = identifier of process/thread (PID/TID) |
Returned value: |
* eax = 0 - successfully |
* eax = -1 - error (the process is not retrieved or is system) |
Remarks: |
* It is impossible to complete thread of an operating system OS/IDLE |
(number of the slot 1), it is possible to complete any usual thread/process. |
* See also subfunction 2 - completion of process / thread on the given slot. |
|
====================================================================== |
============ Function 19 - start application with ramdisk. =========== |
====================================================================== |
Parameters: |
* eax = 19 - number of the function |
* ebx = pointer on an application name in format similar to function 6 |
* ecx = 0 or ecx = the pointer on parameters of the command line |
Returned value: |
* If eax > 0, eax contains PID of the created process |
* If eax < 0, -eax - error code of a file system |
Remarks: |
* This function is obsolete; use subfunction 7 functions 70. |
* Command line should be ended by the character with the code 0 |
(ASCIIZ-strings); it are taken into account or all characters up to |
completing zero inclusively, or the first 256 characters, that are less. |
|
====================================================================== |
==================== Function 20 - interface MIDI. =================== |
====================================================================== |
|
------------------------ Subfunction 1 - reset ------------------------ |
Parameters: |
* eax = 20 - number of the function |
* ebx = 1 - number subfunction |
|
-------------------- Subfunction 2 - output byte --------------------- |
Parameters: |
* eax = 20 - number of the function |
* ebx = 2 - number subfunction |
* cl = byte for output |
Returned value (is identical to both subfunctions): |
* eax = 0 - successfully |
* eax = 1 - base port is not defined |
Remarks: |
* Base port previously should be defined by call |
subfunction of 1 function 21. |
|
====================================================================== |
==== Function 21, subfunction 1 - install a base port MPU MIDI. ====== |
====================================================================== |
Parameters: |
* eax = 21 - number of the function |
* ebx = 1 - number subfunction |
* ecx = number of a base port |
Returned value: |
* eax = 0 - successfully |
* eax = -1 - erratic number of a port |
Remarks: |
* Number of a port should satisfy to conditions 0x100<=ecx<=0xFFFF. |
* Installation of base is necessary for operation of the function 20. |
* Get installed base port it is possible by call |
subfunction of 1 function 26. |
|
====================================================================== |
======== Function 21, subfunction 2 - install keyboard layout. ======= |
====================================================================== |
Keyboard layout is used for conversion scancodes, acting from the keyboard, |
in ASCII-codes which were read - out by the function 2. |
Parameters: |
* eax = 21 - number of the function |
* ebx = 2 - number subfunction |
* ecx = what layout to install: |
* 1 = normal layout |
* 2 = layout at pressed Shift |
* 3 = layout at pressed Alt |
* edx = pointer on layout - table of length 128 bytes |
Or: |
* ecx = 9 |
* dx = identifier of the country (1=eng, 2=fi, 3=ger, 4=rus) |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - parameter is given incorrectly |
Remarks: |
* If is pressed Alt, the layout with Alt is used; if not is pressed Alt, |
but is pressed Shift, the layout with Shift is used; if not are |
pressed Alt and Shift, but is pressed Ctrl, the normal layout is used, |
then from the code is subtracted 0x60; if not any of direction keys |
is pressed, the normal layout is used. |
* get layouts and identifier of the country it is possible with the help |
subfunction 2 functions 26. |
* The identifier of the country - global environment variable, which by |
kernel is not used; however application @panel displays an icon, |
appropriate to the current country. |
* Application @panel switches layouts on search of the user. |
|
====================================================================== |
=========== Function 21, subfunction 3 - install base CD. ============ |
====================================================================== |
Parameters: |
* eax = 21 - number of the function |
* ebx = 3 - number subfunction |
* ecx = base CD: 1=IDE0, 2=IDE1, 3=IDE2, 4=IDE3 |
Returned value: |
* eax = 0 |
Remarks: |
* Base CD is used by the function 24. |
* Receive the installed base CD it is possible by call |
subfunction 3 functions 26. |
|
====================================================================== |
=== Function 21, subfunction 4 - install base port Sound Blaster. ==== |
====================================================================== |
Parameters: |
* eax = 21 - number of the function |
* ebx = 4 - number subfunction |
* ecx = number base port |
Returned value: |
* eax = 0 - successfully |
* eax = -1 - erratic number of a port |
Remarks: |
* Number of a port should satisfy to conditions 0x100<=ecx<=0xFFFF. |
* Installation of base is necessary for operation of functions 25, 28, 55. |
* Get installed base port it is possible by call subfunction 4 functions 26. |
|
====================================================================== |
==== Function 21, subfunction 5 - install the language of system. ==== |
====================================================================== |
Parameters: |
* eax = 21 - number of the function |
* ebx = 5 - number subfunction |
* ecx = language of system (1=eng, 2=fi, 3=ger, 4=rus) |
Returned value: |
* eax = 0 |
Remarks: |
* Language of the system - global environment variable in any way which |
is not used by kernel, however application @panel draws |
an appropriate icon. |
* Checks on a correctness is not done, as the kernel this variable |
does not use. |
* Get language of the system it is possible by call |
subfunction 5 functions 26. |
|
====================================================================== |
========= Function 21, subfunction 6 - install base port WSS. ======== |
====================================================================== |
Parameters: |
* eax = 21 - number of the function |
* ebx = 6 - number subfunction |
* ecx = base port |
Returned value: |
* eax = 0 - successfully |
* eax = -1 - erratic number of a port |
Remarks: |
* Number of a port should satisfy to conditions 0x100<=ecx. |
* Base WSS is used by the function 27. |
* Get installed base port WSS it is possible by call |
subfunction 6 functions 26. |
|
====================================================================== |
=========== Function 21, subfunction 7 - install base HD. ============ |
====================================================================== |
The base HD is necessary for definition, on what hard disk to write, at usage |
of out-of-date functions of operation with a file system and functions |
implicitly using the hard disk (such as subfunction of 6 functions 18); |
At usage of functions 58 and 70 and modern syntax /HD0, /HD1, /HD2, /HD3 |
these functions install base. |
Parameters: |
* eax = 21 - number of the function |
* ebx = 7 - number subfunction |
* ecx = base HD: 1=IDE0, 2=IDE1, 3=IDE2, 4=IDE3 |
Returned value: |
* eax = 0 |
Remarks: |
* Any application at any moment of time can change base. |
* It is not necessary to change base, when any application works |
with the hard disk. If not want errors of the system. |
* Get installed base it is possible by call subfunction 7 functions 26. |
* It is necessary also to define used partition of |
the hard disk subfunction 8. |
|
====================================================================== |
========= Function 21, subfunction 8 - install partition HD. ========= |
====================================================================== |
The section HD is necessary for definition, on what partition of the hard disk |
to write, at usage of out-of-date functions of operation with a file system and |
functions implicitly using the hard disk (such as subfunction of 6 functions |
18); at usage of functions 58 and 70 and modern syntax /HD0, /HD1, /HD2, /HD3 |
these functions install base and partition. |
Parameters: |
* eax = 21 - number of the function |
* ebx = 8 - number subfunction |
* ecx = partition HD (beginning from 1) |
Returned value: |
* eax = 0 |
Remarks: |
* Any application at any moment of time can change partition. |
* It is not necessary to change partition, when any application works |
with the hard disk. If not want errors of the system. |
* Get installed partition it is possible by call subfunction 8 functions 26. |
* Checks on a correctness is not done. |
* Find out number of partitions on the hard disk it is possible by call |
subfunction 11 functions 18. |
* It is necessary also to define used base of the hard disk subfunction 7 |
|
====================================================================== |
=== Function 21, subfunction 10 - install channel DMA for a sound. === |
====================================================================== |
Parameters: |
* eax = 21 - number of the function |
* ebx = 10 - number subfunction |
* ecx = number of channel (from 0 up to 3 inclusively) |
Returned value: |
* eax = 0 - successfully |
* eax = -1 - incorrect number of the channel |
Remarks: |
* Number of the channel DMA is used in subfunction of 1 function 55. |
* Get channel DMA for a sound it is possible by call |
subfunction 10 functions 26. |
|
====================================================================== |
====================== Function 21, subfunction 11 =================== |
=============== Permit/prohibit low level access to HD. ============== |
====================================================================== |
Parameters: |
* eax = 21 - number of the function |
* ebx = 11 - number subfunction |
* ecx = 0/1 - prohibit/permit |
Returned value: |
* eax = 0 |
Remarks: |
* Is used at LBA-reading (subfunction 8 functions 58). |
* Current realization uses only low bit ecx. |
* Get a current status it is possible by call subfunction 11 functions 26. |
|
====================================================================== |
====================== Function 21, subfunction 12 =================== |
============= Permit/prohibit low level access to PCI. =============== |
====================================================================== |
Parameters: |
* eax = 21 - number of the function |
* ebx = 12 - number subfunction |
* ecx = 0/1 - prohibit/permit |
Returned value: |
* eax = 0 |
Remarks: |
* Is used by operation with the bus PCI (function 62). |
* Current realization uses only low bit ecx. |
* Get a current status it is possible by call subfunction 12 functions 26. |
|
====================================================================== |
============= Function 21, subfunction 13, subsubfunction 1 ========== |
======= Initialize + get information on the driver vmode.mdr. ======== |
====================================================================== |
Parameters: |
* eax = 21 - number of the function |
* ebx = 13 - number subfunction |
* ecx = 1 - number of the function äðàéâåðà |
* edx = pointer on the buffer of a size of 512 bytes |
Returned value: |
* If the driver is not loaded (never it happens in current implementation): |
* eax = -1 |
* ebx, ecx fail |
* If the driver is loaded: |
* eax = 'MDAZ' (in style fasm, i.e. 'M' - low byte, |
'Z' - high) - signature |
* ebx = current frequency of the scanning (in a Hz) |
* ecx fail |
* buffer, which specifies edx, is filled |
Format of the buffer: |
* +0: 32*byte: name of the driver, " Trans VideoDriver " (without quotes, |
is supplemented by blanks) |
* +32 = +0x20: dword: version of the driver (version x.y is encoded |
as y*65536+x), for current implementation 1 (1.0) |
* +36 = +0x24: 7*dword: reserved (0 in current implementation) |
* +64 = +0x40: 32*word: list of supported videomodes (each word - number |
of videomode, after the purely list there are zero) |
* +128 = +0x80: 32*(5*word): list of supported frequencies of the scannings |
for videomodes: for each videomode indicated in the previous field, |
up to 5 supported frequencies (in unused positions are indicated the zero) |
are written. |
Remarks: |
* Function initializes the driver (if it is not initialized yet) and should |
be called by first, before others (differently they will return -1, |
nothing doing). |
* In current implementation one frequency of the scanning on videomode |
is supported only. |
|
====================================================================== |
============= Function 21, subfunction 13, subsubfunction 2 ========== |
================= Get information on current videomode. ============== |
====================================================================== |
Parameters: |
* eax = 21 - number of the function |
* ebx = 13 - number subfunction |
* ecx = 2 - number of the function of the driver |
Returned value: |
* eax = -1 - driver is not loaded or is not initialized; |
ebx,ecx fail |
* eax = [width]*65536 + [height] |
* ebx = frequency of the vertical scanning (in a Hz) |
* ecx = number of current videomode |
Remarks: |
* Driver previously should be initialized by function call of the driver 1. |
* If the sizes of the screen are necessary only, it is more expedient |
to use the function 14 that it returns sizes on 1 less. |
|
====================================================================== |
= Function 21, subfunction 13, subsubfunction 3 - install videomode. |
====================================================================== |
Parameters: |
* eax = 21 - number of the function |
* ebx = 13 - number subfunction |
* ecx = 3 - number of the function of the driver |
* edx = [frequency of the scanning] *65536 + [number of videomode] |
Returned value: |
* eax = -1 - driver is not loaded, not initialized or has taken place error |
* eax = 0 - successfully |
* ebx, ecx fail |
Remarks: |
* Driver previously should be initialized by function call of the driver 1. |
* Number of videomode and frequency should be in the table returned |
function 1 of the driver. |
|
====================================================================== |
============= Function 21, subfunction 13, subsubfunction 4 ========== |
===================== Return to former videomode. ==================== |
====================================================================== |
Âîçâðàùàåò ýêðàí â videomode, óñòàíîâëåííîì ïðè çàãðóçêå ñèñòåìû. |
Parameters: |
* eax = 21 - number of the function |
* ebx = 13 - number subfunction |
* ecx = 4 - number of the function of the driver |
Returned value: |
* eax = -1 - driver is not loaded or is not initialized |
* eax = 0 - successfully |
* ebx, ecx fail |
Remarks: |
* Driver previously should be initialized by function call of the driver 1. |
|
======================================================================= |
============= Function 21, subfunction 13, subsubfunction 5 =========== |
====== Increase/reduce a size of visible area of screen monitor. ====== |
======================================================================= |
Parameters: |
* eax = 21 - number of the function |
* ebx = 13 - number subfunction |
* ecx = 5 - number of the function of the driver |
* edx = 0/1 - reduce/increase a size on a horizontal by one position |
* edx = 2/3 - in current realization is not supported; is planned as |
decrease/increase of a size on a vertical for one position |
Returned value: |
* eax = -1 - driver is not loaded or is not initialized |
* eax = 0 - successfully |
* ebx, ecx fail |
Remarks: |
* Driver previously should be initialized by function call of the driver 1. |
* Function influences only a physical size of the map on the screen monitor; |
the logical size (number of pixels) does not vary. |
|
====================================================================== |
=============== Function 22 - install system date/time. ============== |
====================================================================== |
Parameters: |
* eax = 22 - number of the function |
* ebx = 0 - install time |
* ecx = 0x00SSMMHH - time in a binary-decimal code (BCD): |
* HH=hour 00..23 |
* MM=minute 00..59 |
* SS=second 00..59 |
* ebx = 1 - óñòàíîâèòü äàòó |
* ecx = 0x00DDMMYY - date in a binary-decimal code (BCD): |
* DD=day 01..31 |
* MM=month 01..12 |
* YY=year 00..99 |
* ebx = 2 - install day of week |
* ecx = 1 for Sunday, ..., 7 for Saturday |
* ebx = 3 - install an alarm clock |
* ecx = 0x00SSMMHH |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - parameter is given incorrectly |
* eax = 2 - CMOS-battery was unloaded |
Remarks: |
* value of installation of day of week is represented doubtful, as it a |
little where is used (day of week it is possible to calculate by date of). |
* Alarm clock can be installed on operation in the given time each day. |
Thus to disable by its existing system functions it is impossible. |
* Operation of an alarm clock consists in generation IRQ8. |
* Generally CMOS supports for an alarm clock installation of value 0xFF |
as one of parameters and means it, that the appropriate parameter |
is ignored. But in current implementation it will not pass |
(will return value 1). |
* Alarm clock - global system resource; the installation of an alarm clock |
automatically cancels the previous installation. However, at present any |
program it does not use. |
|
====================================================================== |
============== Function 23 - expect event with timeout. ============= |
====================================================================== |
If message queue is empty, waits for appearance of the message in queue, but no more indicated time. Then reads out the message from queue. |
|
Parameters: |
* eax = 23 - number of the function |
* ebx = timeout (in 1/100 of second) |
Returned value: |
* eax = 0 - message queue is empty |
* differently eax = event (look the list of events) |
Remarks: |
* Those events are taken into account only which enter into a mask installed |
by the function 40. By default it is events redraw, pressing keys |
and buttons. |
* For check, whether there is a message in queue, use the function 11. |
To wait as much as long, use the function 10. |
* Transmission ebx=0 results in instant returning eax=0. |
* At current realization there will be an immediate return from the function |
with eax=0, if the addition ebx with current value of the counter of time |
will call 32-bit overflow. |
|
====================================================================== |
======= Function 24, subfunction 1 - begin to play a CD - audio. ===== |
====================================================================== |
Parameters: |
* eax = 24 - number of the function |
* ebx = 1 - number subfunction |
* ecx = 0x00FRSSMM, where |
* MM = initial minute |
* SS = initial second |
* FR = initial frame |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - base CD is not defined |
Remarks: |
* Previously it is necessary to define a base port CD by call |
subfunction 3 functions 21. |
* In one second 75 frames, in one minute 60 seconds. |
* Function is asynchronous (returns handle, when the playing) began. |
|
====================================================================== |
====== Function 24, subfunction 2 - get information on tracks. ======= |
====================================================================== |
Parameters: |
* eax = 24 - number of the function |
* ebx = 2 - number subfunction |
* ecx = pointer on the buffer for the table |
(maximal 8*64h+4 byte =100 tracks) |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - base CD is not defined |
Remarks: |
* The format of the table with the information on tracks same, as well |
as for a ATAPI-CD of the command 43h (READ TOC), usual table |
(subcommand 00h). The addresses come back in the format MSF. |
* Previously it is necessary to define a base port CD by call |
subfunction 3 functions 21. |
* Function returns the information only about no more than 100 first tracks. |
In most cases it is enough of it. |
|
====================================================================== |
========= Function 24, subfunction 3 - stop play CD - audio. ========= |
====================================================================== |
Parameters: |
* eax = 24 - number of the function |
* ebx = 1 - number subfunction |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - base CD is not defined |
Remarks: |
* Previously it is necessary to define a base port CD by call |
subfunction 3 functions 21. |
|
====================================================================== |
================= Function 25 - install volume SBPro. ================ |
====================================================================== |
Parameters: |
* eax = 25 - number of the function |
* ebx = what to install: |
* 1 - install common volume |
* 2 - install volume of CD - audio |
* cl = Level of volume: high 4 bits for the left column, low 4 - for right |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - base SB is not defined |
* eax = 2 - incorrect subfunction |
Remarks: |
* Previously it is necessary to define a base port SB by call |
subfunction 4 functions 21. |
* See also function 28 installations of a sound for later standard SB16. |
|
====================================================================== |
======== Function 26, subfunction 1 - get base port MPU MIDI. ======== |
====================================================================== |
Parameters: |
* eax = 26 - number of the function |
* ebx = 1 - number subfunction |
Returned value: |
* eax = number of a port |
Remarks: |
* Install a base port it is possible by call subfunction of 1 function 21. |
|
====================================================================== |
========== Function 26, subfunction 2 - get keyboard layout. ========= |
====================================================================== |
The keyboard layout is used for conversion scancodes, acting from the keyboard, |
in ASCII-codes which were read - out by the function 2. |
Parameters: |
* eax = 26 - number of the function |
* ebx = 2 - number subfunction |
* ecx = what layout to get: |
* 1 = normal layout |
* 2 = layout at pressed Shift |
* 3 = layout at pressed Alt |
* edx = pointer on the buffer of length 128 bytes, where the layout |
will be copied |
Returned value: |
* function does not return value |
Èëè: |
* eax = 26 - number of the function |
* ebx = 2 - number subfunction |
* ecx = 9 |
Returned value: |
* eax = identifier of the country (1=eng, 2=fi, 3=ger, 4=rus) |
Remarks: |
* If is pressed Alt, the layout with Alt is used; if not is pressed Alt, |
but is pressed Shift, the layout with Shift is used; if not are |
pressed Alt and Shift, but is pressed Ctrl, the normal layout is used, |
then from the code is subtracted 0x60; if not any of direction keys |
is pressed, the normal layout is used. |
* Install layouts and identifier of the country it is possible with the help |
subfunction 2 functions 21. |
* The identifier of the country - global environment variable, which by |
kernel is not used; however application @panel displays an icon, |
appropriate to the current country (using the described function). |
* Application @panel switches layouts on search of the user. |
|
====================================================================== |
============= Function 26, subfunction 3 - get base CD. ============== |
====================================================================== |
Parameters: |
* eax = 26 - number of the function |
* ebx = 3 - number subfunction |
Returned value: |
* eax = base CD: 1=IDE0, 2=IDE1, 3=IDE2, 4=IDE3 |
Remarks: |
* Base CD is used by the function 24. |
* Install base CD it is possible by call subfunction 3 functions 21. |
|
====================================================================== |
====== Function 26, subfunction 4 - get base port Sound Blaster. ===== |
====================================================================== |
Parameters: |
* eax = 26 - number of the function |
* ebx = 4 - number subfunction |
Returned value: |
* eax = number of a base port |
Remarks: |
* Installation of base is necessary for operation of functions 25, 55. |
* Install a base port it is possible by call subfunction 4 functions 21. |
|
====================================================================== |
======== Function 26, subfunction 5 - get language of system. ======== |
====================================================================== |
Parameters: |
* eax = 26 - number of the function |
* ebx = 5 - number subfunction |
Returned value: |
* eax = language of system (1=eng, 2=fi, 3=ger, 4=rus) |
Remarks: |
* Language of the system - global environment variable in any way which |
is not used by kernel, however application @panel draws |
an appropriate icon (using described function). |
* Install the language of the system it is possible by call |
subfunction 5 functions 21. |
|
====================================================================== |
=========== Function 26, subfunction 6 - get base port WSS. ========== |
====================================================================== |
Parameters: |
* eax = 26 - number of the function |
* ebx = 6 - number subfunction |
Returned value: |
* eax = base port |
Remarks: |
* Base WSS is used by the function 27. |
* Install a base port WSS it is possible by call subfunction 6 functions 21. |
|
====================================================================== |
============== Function 26, subfunction 7 - get base HD. ============= |
====================================================================== |
The base HD is necessary for definition, on what hard disk to write, at usage |
of out-of-date functions of operation with a file system and functions |
implicitly using the hard disk (such as subfunction of 6 functions 18); |
At usage of functions 58 and 70 and modern syntax /HD0, /HD1, /HD2, /HD3 |
these functions install base. |
Parameters: |
* eax = 26 - number of the function |
* ebx = 7 - number subfunction |
Returned value: |
* eax = base HD: 1=IDE0, 2=IDE1, 3=IDE2, 4=IDE3 |
Remarks: |
* Any application at any moment of time can change áàçó. |
* Install base it is possible by call subfunction 7 functions 21. |
* Get used partition of the hard disk it is possible subfunction 8. |
|
====================================================================== |
=========== Function 26, subfunction 8 - get partition HD. =========== |
====================================================================== |
The partition HD is necessary for definition, on what partition of the hard disk |
to write, at usage of out-of-date functions of operation with a file system and |
functions implicitly using the hard disk (such as subfunction of 6 functions |
18); at usage of functions 58 and 70 and modern syntax /HD0, /HD1, /HD2, /HD3 |
these functions install base and partition. |
Parameters: |
* eax = 26 - number of the function |
* ebx = 8 - number subfunction |
Returned value: |
* eax = partition HD (beginning from 1) |
Remarks: |
* Any application at any moment of time can change partition. |
* Install partition it is possible by call subfunction 8 functions 21. |
* Find out number of partitions on the hard disk it is possible by call |
subfunction 11 functions 18. |
* Get used base of the hard disk it is possible subfunction 7. |
|
====================================================================== |
=== Function 26, subfunction 9 - get value of the counter of time. === |
====================================================================== |
Parameters: |
* eax = 26 - number of the function |
* ebx = 9 - number subfunction |
Returned value: |
* eax = number of 1/100 second, past from the moment of start of the system |
Remarks: |
* counter takes modulo 2^32, that there corresponds by little more+ |
than 497 day. |
* System time can be get by the function 3. |
|
====================================================================== |
====== Function 26, subfunction 10 - get channel DMA for a sound. ==== |
====================================================================== |
Parameters: |
* eax = 26 - number of the function |
* ebx = 10 - number subfunction |
Returned value: |
* eax = number of the channel (from 0 up to 3 inclusively) |
Remarks: |
* Number of the channel DMA is used in subfunction 1 function 55. |
* Install the channel DMA for a sound it is possible by call |
subfunction 10 functions 21. |
|
====================================================================== |
====================== Function 26, subfunction 11 =================== |
========= Find out, whether low level access to HD is allowed. ======= |
====================================================================== |
Parameters: |
* eax = 26 - number of the function |
* ebx = 11 - number subfunction |
Returned value: |
* eax = 0/1 - prohibit/permit |
Remarks: |
* Is used at LBA-reading (subfunction 8 functions 58). |
* Install a current status it is possible by call |
subfunction 11 functions 21. |
|
====================================================================== |
====================== Function 26, subfunction 12 =================== |
======= Find out, whether low level access to PCI is allowed. ======== |
====================================================================== |
Parameters: |
* eax = 26 - number of the function |
* ebx = 12 - number subfunction |
Returned value: |
* eax = 0/1 - prohibit/permit |
Remarks: |
* Is used by operation with the bus PCI (function 62). |
* Current realization uses only low bit ecx. |
* install a current status it is possible by call |
subfunction 12 functions 21. |
|
====================================================================== |
==== Function 27 - install volume Windows Sound System (WSS). === |
====================================================================== |
Parameters: |
* eax = 27 - number of the function |
* ebx = what to install: |
* 1 - install common volume |
* 2 - install volume Line In |
* cl = Level of volume (0x0 = highest, 0x1F = lowest, |
installed bit 0x80 = to disable) |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - the base WSS is not defined |
* eax = 2 - incorrect subfunction |
Remarks: |
* Previously it is necessary to define a base port WSS by call |
subfunction 6 functions 21. |
* Installation of common volume is actually ignored (comes back eax=0). |
* In old documentation and in source code of a kernel subfunction 2 |
is erraticly called as volume of a CD - audio. |
|
====================================================================== |
================= Function 28 - install volume SB16. ================= |
====================================================================== |
Parameters: |
* eax = 28 - number of the function |
* ebx = what to install: |
* 1 - install common volume |
* 2 - install volume of a CD - audio |
* cl = level of volume (0=off, 0xFF=max) |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - the base SB is not defined |
* eax = 2 - incorrect subfunction |
Remarks: |
* Previously it is necessary to define a base port SB by call |
subfunction 4 functions 21. |
* This function gives more variants for volume, than function 25. |
|
====================================================================== |
==================== Function 29 - get system date. ================== |
====================================================================== |
Parameters: |
* eax = 29 - number of the function |
Returned value: |
* eax = 0x00DDMMYY, where |
(binary-decimal coding is used, BCD) |
* YY = two low digits of year (00.. 99) |
* MM = month (01.. 12) |
* DD = day (01.. 31) |
Remarks: |
* The system date can be installed by the function 22. |
|
====================================================================== |
=============== Function 32 - delete file with ramdisk. ============== |
====================================================================== |
Parameters: |
* eax = 32 - number of the function |
* ebx = pointer on a filename |
Returned value: |
* eax = 0 - successfully; differently error code of a file system |
Remarks: |
* This function is obsolete; the function 58 allows to fulfil the same |
operations with the extended possibilities. |
* Current realization returns only values 0 (successes) |
and 5 (the file is not retrieved). |
* The filename should be or in the format 8+3 characters (first 8 characters |
- purely name, last 3 - extension, the short names and extensions are |
supplemented by blanks), or in the format 8.3 characters |
"FILE.EXT" / "FILE.EX" (name no more than 8 characters, point, |
extension 3 characters supplemented if necessary by blanks). |
Filename should be written by capital letters. The completing character |
with the code 0 is not necessary (ASCIIZ-string). |
|
====================================================================== |
=============== Function 33 - save file on ramdisk. ================== |
====================================================================== |
Parameters: |
* eax = 33 - number of the function |
* ebx = pointer on a filename |
* ecx = pointer on data for save |
* edx = number byte for save |
* it is necessary to install esi=0 |
Returned value: |
* eax = 0 - successfully, differently error code of a file system |
Remarks: |
* This function is obsolete; the function 58 allows to fulfil the same |
operations with the extended possibilities. |
* If to specify non-zero value in esi and on ramdisk already there is an |
indicated file, one more file with the same name will be created. |
* Otherwise file is resave. |
* The filename should be or in the format 8+3 characters (first 8 characters |
- purely name, last 3 - extension, the short names and extensions are |
supplemented by blanks), or in the format 8.3 characters |
"FILE.EXT" / "FILE.EX" (name no more than 8 characters, point, |
extension 3 characters supplemented if necessary by blanks). |
Filename should be written by capital letters. The completing character |
with the code 0 is not necessary (ASCIIZ-string). |
|
====================================================================== |
======== Function 35 - read colour of a point on the screen. ========= |
====================================================================== |
Parameters: |
* eax = 35 |
* ebx = y*xsize+x, where |
* (x,y) = coordinates of a point (considering from 0) |
* xsize = size of the screen on a horizontal |
Returned value: |
* eax = colour 0x00RRGGBB |
Remarks: |
* Find out sizes of the screen it is possible by function call 14. |
Pay attention, that it subtracts 1 of both sizes. |
* To a video memory there is also direct access (without calls of system |
functions) through the selector gs. Parameters of current videomode |
it is possible to receive by the function 61. |
|
====================================================================== |
=========== Function 37 - get coordinate/status of mouse. ============ |
====================================================================== |
|
------------ Subfunction 0 - screen coordinates of mouse ------------- |
Parameters: |
* eax = 37 - number of the function |
* ebx = 0 - number subfunction |
Returned value: |
* eax = x*65536 + y, (x,y)=coordinates of mouse pointer (considering from 0) |
|
------ Subfunction 1 - coordinates of mouse concerning window ------- |
Parameters: |
* eax = 37 - number of the function |
* ebx = 1 - number subfunction |
Returned value: |
* eax = x*65536 + y, (x,y)=coordinates of mouse pointer concerning |
an application window (considering from 0) |
Remarks: |
* Value is calculated under the formula (x-xwnd) *65536 + (y-ywnd). |
If y > =ywnd, the low word nonnegatively also contains relative |
y-coordinate, and high - relative x-coordinate (correct sign). |
Otherwise low word negatively and all the same contains relative |
y-coordinate, and to a high word it is necessary to add 1. |
|
---------------- Subfunction 2 - pressed mouse buttons ---------------- |
Parameters: |
* eax = 37 - number of the function |
* ebx = 2 - number subfunction |
Returned value: |
* eax contains information on the pressed mouse buttons: |
* Bit 0 installed = left button pressed |
* Bit 1 installed = right button pressed |
* Other bits are reset |
|
====================================================================== |
====================== Function 38 - draw line. ====================== |
====================================================================== |
Parameters: |
* eax = 38 - number of the function |
* ebx = [coordinate began on axis x] *65536 + |
[coordinate of the end on axis x] |
* ecx = [coordinate began on axis y]*65536 + |
[coordinate of the end on axis y] |
* edx = 0x00RRGGBB - colour |
Returned value: |
* function does not return value |
Remarks: |
* Coordinates take concerning window. |
* Finite point also is drawn. |
|
====================================================================== |
===== Function 39, subfunction 1 - get size of background image. ===== |
====================================================================== |
Parameters: |
* eax = 39 - number of the function |
* ebx = 1 - number subfunction |
Returned value: |
* eax = [width]*65536 + [height] |
Remarks: |
* There is a pair command of installation of sizes of background image - |
subfunction of 1 function 15. After which, certainly, it is necessary |
anew to define image. |
|
====================================================================== |
== Function 39, subfunction 2 - read a point from background image. == |
====================================================================== |
Parameters: |
* eax = 39 - number of the function |
* ebx = 2 - number subfunction |
* ecx = offset |
Returned value: |
* eax = 0x00RRGGBB - colour of a point, if offset is valid (less 0x160000-16) |
* eax = 2 - differently |
Remarks: |
* It is not necessary to rely on returned value in case of incorrect offset, |
it can vary in the following versions of a kernel. |
* Offset of a point with coordinates (x, y) is calculated as (x+y*xsize) *3. |
* There is a pair function of installation of a point on background image - |
subfunction 2 functions 15. |
|
====================================================================== |
==== Function 39, subfunction 4 - get mode redraw of background. ===== |
====================================================================== |
Parameters: |
* eax = 39 - number of the function |
* ebx = 4 - number subfunction |
Returned value: |
* eax = 1 - tiled |
* eax = 2 - stretched |
Remarks: |
* There is a pair function of installation of mode redraw of a background - |
subfunction 4 functions 15. |
|
====================================================================== |
========== Function 40 - install a mask for expected events. ========= |
====================================================================== |
Mask for expected events influences function of operation with events 10, |
11, 23 - they inform only events allowed by this mask. |
Parameters: |
* eax = 40 - number of the function |
* ebx = mask: bit i corresponds to event i+1 (see list of events) |
(installed bit permits notice on event) |
Returned value: |
* function does not return value |
Remarks: |
* Mask by default (7=111b) permits notices about redraw, |
pressings keys and buttons. |
It is enough of it for the majority of the applications. |
* The events prohibited in a mask, are all same saved, if come; |
with events simply do not inform on them functions of operation. |
* Functions of operation with events take into account a mask on moment |
of function call, instead of on moment of arrival of message. |
|
====================================================================== |
=============== Function 41 - find out the owner IRQ. ================ |
====================================================================== |
Parameters: |
* eax = 41 - number of the function |
* ebx = number IRQ, 0..15 |
Returned value: |
* eax = PID of owner |
* eax = 0, if owner is not present |
* eax = -1 for incorrect ebx |
|
====================================================================== |
=============== Function 42 - read data obtained on IRQ. ============= |
====================================================================== |
At occurrence IRQ system can read out data from indicated earlier by |
function 44 ports and to write these data in buffer. |
Described function reads out on byte the data from this buffer. |
Parameters: |
* eax = 42 - number of the function |
* ebx = number IRQ, 0..15 |
Returned value: (situation can be distinguished on value ecx) |
* if thread is not owner IRQ |
(or number IRQ is given incorrectly): |
* ecx = 2 |
* if data is not present: |
* eax = 0 |
* ecx = 1 |
* ebx fail |
* if all in the order and data were: |
* eax = size given, yet not read from the buffer (in bytes) |
* ecx = 0 |
* ebx = current byte |
Remarks: |
* Previously thread should reserve for itself indicated IRQ |
by the function 45. |
* Size of the buffer for the data - 4000 bytes, at overflow |
the "fresh" data cease to be written in the buffer. |
|
====================================================================== |
================ Function 43 - input/output in port. ================= |
====================================================================== |
|
------------------------ Data output in port ------------------------- |
Parameters: |
* eax = 43 - number of the function |
* bl = byte for output |
* ecx = number of port 0xnnnn (from 0 up to 0xFFFF) |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - thread the indicated port has not reserved |
|
------------------------ Data input from a port ------------------------ |
Parameters: |
* eax = 43 - number of the function |
* ebx ignored |
* ecx = 0x8000nnnn, where nnnn = number of port (from 0 up to 0xFFFF) |
Returned value: |
* eax = 0 - successfully, thus ebx = entered byte |
* eax = 1 - thread the given port has not reserved |
Remarks: |
* Previously thread should reserve behind itself the indicated port |
by the function 46. |
* For the reserved ports instead of call of these functions it is better |
to use commands of the processor in/out is much faster both a little bit |
more shortly and easier. From the non-reserved ports to read all the same |
it is impossible. |
|
====================================================================== |
=========== Function 44 - define operations at arrival IRQ. ========== |
====================================================================== |
At occurrence IRQ the system can read out the data from the ports, indicated |
by this function, and to write these data in the buffer, whence they can be |
read by the function 42. |
Parameters: |
* eax = 44 - number of the function |
* ebx = pointer on the array of structures describing on one port: |
* +0: word: 0 means the end of the array, differently number of a port |
* +2: byte: reserved (ignored) |
* +3: byte: 1 = read out byte from this port, 2 = read out a word |
* ecx = number IRQ, 0..15 |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - thread is not owner indicated IRQ |
Remarks: |
* Previously thread should reserve behind itself indicated IRQ |
by the function 45. |
* First 16 ports are considered only. |
* Current implementation considers incorrect value of a field +3 |
as a signal of termination of processing IRQ. |
|
====================================================================== |
============ Function 45 - reserve/free IRQ. ============ |
====================================================================== |
Parameters: |
* eax = 45 - number of the function |
* ebx = 0 - reserve, 1 = free |
* ecx = number IRQ, 0..15 |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - error (incorrect number IRQ or attempt reserve not free IRQ |
or to free IRQ, not reserved by current stream) |
Remarks: |
* Reserved IRQ is necessary for operation of functions 42 and 44. |
* Only one thread can reserve selected IRQ. |
* IRQ, processed by the system is independent, are reserved by |
the system (stream 1) at loading. |
* At completion thread are automatically released all reserved by it IRQ. |
|
====================================================================== |
==== Function 46 - reserve/free group of ports of input/output. ====== |
====================================================================== |
It is possible to access to the reserved ports directly from the application by |
commands in/out (recommended way) and function call 43 (not recommended way). |
Parameters: |
* eax = 46 - number of the function |
* ebx = 0 - reserve, 1 - free |
* ecx = number of a beginning of a range of ports |
* edx = number of the end of a range of ports (inclusively) |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - error |
Remarks: |
* In case of backup of ports the error considers execution of one |
of conditions: |
* beginning address more than end address; |
* indicated range contains incorrect number of a port |
(correct - from 0 up to 0xFFFF); |
* limitation on a total number of the reserved areas - |
is exceeded the maximal 255 is admitted; |
* indicated range is intersected with one of earlier reserved |
* In case of release of ports the error considers attempt of release of |
a range, which was not wholly reserved by same function (with the same |
values ecx, edx) earlier. |
* At detection of an error (in both cases) any operations is not does. |
* At loading the system reserved behind itself ports 0.. 0xff, and at |
detection of COM-mouse - in addition range of COM-ports 0x3f0.. 0x3ff |
and/or 0x2f0.. 0x2ff. |
* At completion thread all ports, reserved by it are automatically free. |
|
====================================================================== |
============== Function 47 - draw number in window. ================== |
====================================================================== |
Parameters: |
* eax = 47 - number of the function |
* ebx = parameters of conversion of number in the text: |
* bl = 0 - ecx contains number |
* bl = 1 - ecx contains the pointer on dword-number |
* bh = 0 - to display in a decimal number system |
* bh = 1 - to display in the hexadecimal system |
* bh = 2 - to display in the binary system |
* Bits 16-21 = how many digits to display |
* The bits 22-31 are reserved and should be installed in 0 |
* ecx = number (at bl=0) or pointer (at bl=1) |
* edx = [coordinate on axis x]*65536 + [coordinate on axis y] |
* esi = 0xN0RRGGBB, RRGGBB=colour, N=font (0/1) |
Returned value: |
* function does not return value |
Remarks: |
* Indicated length should not exceed 60. |
* The equally indicated amount of digits is output. If the number a little |
also can be written by smaller amount of digits, it is supplemented by |
leading zeroes; if the number is great and can not be written by such |
amount of digits, the "superfluous" carrying on digits are not draw. |
* Parameters of fonts are indicated in the description of the function 4 |
(output of the text). |
|
====================================================================== |
===== Function 48, subfunction 0 - apply adjustments of screen. ====== |
====================================================================== |
Parameters: |
* eax = 48 - number of the function |
* ebx = 0 - number subfunction |
* ecx = 0 - reserved |
Returned value: |
* function does not return value |
Remarks: |
* Function redraw the screen after change of parameters |
subfunctions 1 and 2. |
* Function call without prior calls indicated subfunctions is ignored. |
* Function call with non-zero ecx is ignored. |
|
====================================================================== |
======= Function 48, subfunction 1 - install style of buttons. ======= |
====================================================================== |
Parameters: |
* eax = 48 - number of the function |
* ebx = 1 - number subfunction |
* ecx = type of buttons: |
* 0 = flat buttons |
* 1 = 3d buttons |
Returned value: |
* function does not return value |
Remarks: |
* After call of the described function follows redraw |
the screen subfunction 0. |
* Type of buttons influences only their plotting by the function 8. |
|
======================================================================== |
== Function 48, subfunction 2 - install standard colours of windows. === |
======================================================================== |
Parameters: |
* eax = 48 - number of the function |
* ebx = 2 - number subfunction |
* ecx = pointer on the color table |
* edx = size of the color table |
(should be 40 bytes for the future compatibility) |
Format of the color table is indicated in the description subfunction 3. |
Returned value: |
* function does not return value |
Remarks: |
* After call of the described function follows redraw |
the screen subfunction 0. |
* Table of standard colours influences only the applications, which receive |
this table by an obvious way (subfunction 3) and use (specifying colours |
from it by calls of functions of drawing). |
* Table of standard colours enters in skin and is installed anew |
at installation skin (subfunction 8). |
* Color table can be viewed/changed online with the help of |
the application desktop. |
|
====================================================================== |
=== Function 48, subfunction 3 - get standard colours of windows. ==== |
====================================================================== |
Parameters: |
* eax = 48 - number of the function |
* ebx = 3 - number subfunction |
* ecx = pointer on the buffer the size edx byte, where will write the table |
* edx = size of the color table |
(should be 40 bytes for the future compatibility) |
Returned value: |
* function does not return value |
Format of the color table: each unit - |
dword-value of colour 0x00RRGGBB |
* +0: dword: frames - colour of frame |
* +4: dword: grab - colour of header |
* +8: dword: grab_button - colour of the button on a bar of header |
* +12 = +0xC: dword: grab_button_text - colour of the text on the button |
on a bar of header |
* +16 = +0x10: dword: grab_text - colour of the text on header |
* +20 = +0x14: dword: work - colour of a working area |
* +24 = +0x18: dword: work_button - colour of the button in a working area |
* +28 = +0x1C: dword: work_button_text - colour of the text on the button |
in a working area |
* +32 = +0x20: dword: work_text - colour of the text in a working area |
* +36 = +0x24: dword: work_graph - colour of a graphics in a working area |
Remarks: |
* structure of the color table is described in the standard included file |
macros.inc under the name system_colors; for example, it is possible |
to write: |
sc system_colors ; declaration of a variable |
... ; where it is necessary to call |
; described function with ecx=sc |
mov ecx, [sc.work_button_text] ; read colour of the text |
; on the button in a working area |
* Usage/non-use of these colours - business is exclusively of the program. |
For usage it is necessary simply at call of functions of drawing to |
specify colour, taken from this table. |
* At change of the table of standard colours (subfunction 2 with the |
subsequent application of changes subfunction 0 or at installation skin |
subfunction 8) all windows the message on necessity redraw (event with |
the code 1) is dispatched. |
* Color table can be viewed/changed online with the help of |
the application desktop. |
|
====================================================================== |
========== Function 48, subfunction 4 - get height of skin. ========== |
====================================================================== |
Parameters: |
* eax = 48 - number of the function |
* ebx = 4 - number subfunction |
Returned value: |
* eax = height of skin |
Remarks: |
* Height skin on definition considers height of header |
of windows using skin. |
* See also common structure of the window in the description |
of the function 0. |
|
====================================================================== |
==== Function 48, subfunction 5 - get working area of the screen. ==== |
====================================================================== |
Parameters: |
* eax = 48 - number of the function |
* ebx = 5 - number subfunction |
Returned value: |
* eax = [left]*65536 + [right] |
* ebx = [top]*65536 + [bottom] |
Remarks: |
* Working area of the screen defines a location and coordinates |
of the maximized window. |
* Working area of the screen by normal operation is all screen |
minus the panel (@panel). |
* (left,top) - coordinates of the left upper corner, |
(right,bottom) - coordinates of the right lower corner. |
Thus, the size of a working area on an axis x is defined by |
the formula right-left+1, on an axis y - formula bottom-right+1. |
* See also function 14, permitting to define sizes of all screen. |
* There is a pair function of installation of a working area - |
subfunction 6. |
|
====================================================================== |
=== Function 48, subfunction 6 - install a working area of screen. === |
====================================================================== |
Parameters: |
* eax = 48 - number of the function |
* ebx = 6 - number subfunction |
* ecx = [left]*65536 + [right] |
* edx = [top]*65536 + [bottom] |
Returned value: |
* function does not return value |
Remarks: |
* Working area of the screen defines a location and coordinates |
of the maximized window. |
* This function is used only by application @panel, installing by |
a working area all screen minus the panel. |
* (left,top) - coordinates of the left upper corner, |
(right,bottom) - coordinates of the right lower corner. |
Thus, the size of a working area on an axis x is defined by |
the formula right-left+1, on an axis y - formula bottom-right+1. |
* If left > =right, the x-coordinates of a working area do not vary. |
If left < 0, left is not installed. If right it is more or equally |
width of the screen, right is not installed. Similarly on an axis y. |
* See also function 14, permitting to define sizes of all screen. |
* There is a pair function of get of a working area - subfunction 5. |
* This function automatically redraw the screen, on a course of business |
updates coordinates and rule(situation) of the maximized windows. |
All windows are informed on necessity redraw (event 1). |
|
====================================================================== |
====================== Function 48, subfunction 7 ==================== |
================= Get skin area for the text of header. ============== |
====================================================================== |
Returns title bar of the window with skin, intended for output of the |
text of header. |
Parameters: |
* eax = 48 - number of the function |
* ebx = 7 - number subfunction |
Returned value: |
* eax = [left]*65536 + [right] |
* ebx = [top]*65536 + [bottom] |
Remarks: |
* Usage/non-use of this function - personal business of the application. |
* It is recommended to take into account values returned by this function, |
at choice of a place for drawing the text of header (function 4) or any |
of a substitute of the text of header (at the discretion of the |
application). |
|
====================================================================== |
===== Function 48, subfunction 8 - install used skin of windows. ===== |
====================================================================== |
Parameters: |
* eax = 48 - number of the function |
* ebx = 8 - number subfunction |
* ecx = pointer on the block for the function 58, in which the field of |
the intermediate buffer is placed(installed) and the filename is indicated |
Returned value: |
* eax = 0 - successfully |
* differently eax = an error code of a file system; if the file does |
not set skin, comes back error 3 (unknown file system). |
Remarks: |
* At successful loading skin all windows are informed on necessity |
redraw (event 1). |
* At loading the system reads out skin from the file default.skn on ramdisk. |
* User can change skin statically, having created default.skn, |
or dynamically with the help of the application desktop. |
|
====================================================================== |
============ Function 49 - Advanced Power Management (APM). =========== |
====================================================================== |
Parameters: |
* eax = 49 - number of the function |
* dx = number of the function APM (clone ax in the specification) |
* bx, cx = parameters of the function APM |
Returned value: |
* 16-bit registers ax, bx, cx, dx, si, di and flag CF are installed |
according to the specification APM |
* high halves of 32-bit registers eax, ebx, ecx, edx, esi, edi fail |
Remarks: |
* Specification APM 1.2 is described in document |
"Advanced Power Management (APM) BIOS Specification " |
(Revision 1.2), accessible on |
http://www.microsoft.com/whdc/archive/amp_12.mspx; |
besides it is included in known Interrupt List by Ralf Brown |
(http://www.pobox.com/~ralf/files.html, |
ftp://ftp.cs.cmu.edu/afs/cs/user/ralf/pub/). |
|
====================================================================== |
=========== Function 50 - installation of form of window. ============ |
====================================================================== |
The usual windows represent rectangles. With the help of this function the |
window can add the arbitrary form. The form sets by a set of points inside |
a framing rectangle concerning to the window. Location and the sizes of |
a framing rectangle are set by the function 0 and vary with the function 67. |
|
----------- Installation of data with information on form ------------ |
Parameters: |
* eax = 50 - number of the function |
* ebx = 0 - number subfunction |
* ecx = pointer on the given forms (array byte 0/1) |
Returned value: |
* function does not return value |
|
---------------- Installation of a scale of given form --------------- |
Parameters: |
* eax = 50 - number of the function |
* ebx = 1 - number subfunction |
* ecx sets a scale: each byte of the data defines |
(2^scale) * (2^scale) of pixels |
Returned value: |
* function does not return value |
Remarks: |
* Scale is by default equal 0 (scaling factor 1). If in the given form |
of one byte corresponds to one pixel, the scale is possible to not install. |
* Let's designate xsize = width of the window (in pixels), ysize = height; |
pay attention, that they on unit are more, than installed by |
functions 0, 67. |
* On definition of a scale xsize and ysize should be divided on 2^scale. |
* Byte of the data on offset a should be 0/1 and defines an accessory to |
the window of a square with the side 2^scale (at scale=0 we receive |
a pixel) and coordinates of the left upper corner |
(a mod (xsize shr scale), a div (xsize shr scale)) |
* Size of the data: (xsize shr scale)*(ysize shr scale). |
* Data should be present at memory and not vary after installation |
of the form. |
* System views the data on the form at everyone redraw of the window |
by the function 0. |
* Call subfunction 0 with the zero pointer results in return to the |
rectangular form. |
|
====================================================================== |
==================== Function 51 - create thread. ==================== |
====================================================================== |
Parameters: |
* eax = 51 - number of the function |
* ebx = 1 - sole subfunction |
* ecx = address of an entry point thread (begin eip) |
* edx = pointer of the stack thread (begin esp) |
Returned value: |
* eax = -1 - error (In the system it is too much threads) |
* differently eax = TID - identifier thread |
|
====================================================================== |
== Function 52, subfunction 0 - get configuration of network driver. = |
====================================================================== |
Parameters: |
* eax = 52 - number of the function |
* ebx = 0 - number subfunction |
Returned value: |
* eax = double word of the configuration |
Remarks: |
* Word of the configuration can be installed subfunction 2. |
* Kernel does not use an appropriate variable. The value of this variable |
and working with it(her) subfunctions 0 and 2 is represented doubtful. |
|
====================================================================== |
========= Function 52, subfunction 1 - get local IP address. ========= |
====================================================================== |
Parameters: |
* eax = 52 - number of the function |
* ebx = 1 - number subfunction |
Returned value: |
* eax = IP-address (4 bytes) |
Remarks: |
* Local IP-address is installed subfunction 3. |
|
====================================================================== |
Function 52, subfunction 2 - install configuration of network driver. |
====================================================================== |
Parameters: |
* eax = 52 - number of the function |
* ebx = 2 - number subfunction |
* ecx = Double word of the configuration; if the low 7 bits will derivate |
number 3, it is perceived as call about reinitialization |
of a Ethernet-map, otherwise Ethernet is switched off |
Returned value: |
* if not the Ethernet-interface is requested, comes back eax=2, |
but it can vary in the future versions of a kernel |
* if the Ethernet-interface is requested, eax=0 means an error |
(absence of a Ethernet-map), and non-zero value - success |
Remarks: |
* Word of the configuration can be read subfunction 0. |
* Kernel does not use an appropriate variable. The value of this variable, |
subfunction 0 and part subfunction 2, installing this variable, |
is represented doubtful. |
|
====================================================================== |
========= Function 52, subfunction 3 - set local IP-address. ========= |
====================================================================== |
Parameters: |
* eax = 52 - number of the function |
* ebx = 3 - number subfunction |
* ecx = IP-address (4 bytes) |
Returned value: |
* Current realization returns eax=3, but it can be changed |
in the future versions |
Remarks: |
* Local IP-address can be received subfunction 1. |
|
====================================================================== |
= Function 52, subfunction 6 - add data in stack of an input queue. == |
====================================================================== |
Parameters: |
* eax = 52 - number of the function |
* ebx = 6 - number subfunction |
* edx = size of the data |
* esi = pointer on the data |
Returned value: |
* eax = -1 - error |
* eax = 0 - successfully |
Remarks: |
* This function is intended only for slow network drivers (PPP, SLIP). |
* Size of the data should not exceed 1500 bytes, though checks |
of a correctness is not done(made). |
|
====================================================================== |
====================== Function 52, subfunction 8 ==================== |
============== Read given from a network output queue. =============== |
====================================================================== |
Parameters: |
* eax = 52 - number of the function |
* ebx = 8 - number subfunction |
* esi = pointer on the buffer by a size of 1500 bytes |
Returned value: |
* eax = Number read byte (in current implementation or |
0 = there are no data, or 1500) |
* data are copied in the buffer |
Remarks: |
* This function is intended only for slow network drivers (PPP, SLIP). |
|
====================================================================== |
=========== Function 52, subfunction 9 - get gateway IP. ========== |
====================================================================== |
Parameters: |
* eax = 52 - number of the function |
* ebx = 9 - number subfunction |
Returned value: |
* eax = gateway IP (4 bytes) |
|
====================================================================== |
========= Function 52, subfunction 10 - get mask of a subnet. ======== |
====================================================================== |
Parameters: |
* eax = 52 - number of the function |
* ebx = 10 - number subfunction |
Returned value: |
* eax = mask of a subnet |
|
====================================================================== |
========= Function 52, subfunction 11 - install gateway IP. ========= |
====================================================================== |
Parameters: |
* eax = 52 - number of the function |
* ebx = 11 - number subfunction |
* ecx = gateway IP (4 bytes) |
Returned value: |
* current realization returns eax=11, but it can be changed in the |
future realizations |
|
====================================================================== |
====== Function 52, subfunction 12 - install mask of a subnet. ======= |
====================================================================== |
Parameters: |
* eax = 52 - number of the function |
* ebx = 12 - number subfunction |
* ecx = mask of a subnet |
Returned value: |
* Current realization returns eax=12, but it can be changed |
in the future versions |
|
====================================================================== |
============ Function 52, subfunction 13 - get DNS IP. ============ |
====================================================================== |
Parameters: |
* eax = 52 - number of the function |
* ebx = 13 - number subfunction |
Returned value: |
* eax = DNS IP (4 bytes) |
|
====================================================================== |
=========== Function 52, subfunction 14 - install DNS IP. ============ |
====================================================================== |
Parameters: |
* eax = 52 - number of the function |
* ebx = 14 - number subfunction |
* ecx = DNS IP (4 bytes) |
Returned value: |
* Current realization returns eax=14, but it can be changed |
in the future versions |
|
====================================================================== |
============ Function 53, subfunction 0 - open UDP-socket. ============ |
====================================================================== |
Parameters: |
* eax = 53 - number of the function |
* ebx = 0 - number subfunction |
* ecx = local port (is taken into account only low word) |
* edx = remote port (is taken into account only low word) |
* esi = remote IP |
Returned value: |
* eax = -1 = 0xFFFFFFFF - error; ebx fail |
* eax = socket number (some number unambiguously identifying socket and |
having sense only for the system) - successfully |
ebx fail |
|
====================================================================== |
============ Function 53, subfunction 1 - close UDP-socket. =========== |
====================================================================== |
Parameters: |
* eax = 53 - number of the function |
* ebx = 1 - number subfunction |
* ecx = socket number |
Returned value: |
* eax = -1 - incorrect number |
* eax = 0 - successfully |
* ebx fail |
Remarks: |
* The current realization does not close automatically all sockets thread |
at its completion. In particular, it is not necessary to kill thread |
with a heap open sockets - there will be an outflow of resources. |
* The current realization does not do checks on a correctness |
(sole, to what the attempt comes back error, - to close not open socket |
with correct number). |
|
====================================================================== |
============== Function 53, subfunction 2 - poll socket. ============= |
====================================================================== |
Parameters: |
* eax = 53 - number of the function |
* ebx = 2 - number subfunction |
* ecx = socket number |
Returned value: |
* eax = number getting bytes |
* ebx fail |
Remarks: |
* Checks of a correctness is not done. |
|
====================================================================== |
======== Function 53, subfunction 3 - read byte from socket. ========= |
====================================================================== |
Parameters: |
* eax = 53 - number of the function |
* ebx = 3 - number subfunction |
* ecx = number socket |
Returned value: |
* if there are no accepted data: eax=0, bl=0, the other bits ebx fail |
* If there were accepted data: eax = number stayed byte (is possible, 0), |
bl = read byte, the other bits ebx fail |
Remarks: |
* Checks of a correctness is not done. |
|
====================================================================== |
======== Function 53, subfunction 4 - write in UDP-socket. =========== |
====================================================================== |
Parameters: |
* eax = 53 - number of the function |
* ebx = 4 - number subfunction |
* ecx = number socket |
* edx = number bytes for writing |
* esi = pointer on data for writing |
Returned value: |
* eax = 0xffffffff - incorrect number |
* eax = 0xffff - lack of memory |
* eax = 0 - successfully |
* ebx fail |
Remarks: |
* Check on valid number is minimum - are eliminated only not so incorrect |
not open numbers. |
* Number bytes for writing can not exceed 1500-28, though appropriate |
check is not done. |
|
====================================================================== |
============ Function 53, subfunction 5 - open TCP-socket. =========== |
====================================================================== |
Parameters: |
* eax = 53 - number of the function |
* ebx = 5 - number subfunction |
* ecx = local port (is taken into account only low word) |
* edx = remote port (is taken into account only low word) |
* esi = remote IP |
* edi = mode of opening: SOCKET_PASSIVE=0 or SOCKET_ACTIVE=1 |
Returned value: |
* eax = -1 = 0xFFFFFFFF - error; ebx fail |
* eax = number socket (some number unambiguously identifying socket |
and having sense only for the system) - successfully; ebx fails |
|
====================================================================== |
======== Function 53, subfunction 6 - get status TCP-socket. ========= |
====================================================================== |
Parameters: |
* eax = 53 - number of the function |
* ebx = 6 - number subfunction |
* ecx = number socket |
Returned value: |
* eax = status socket: one of |
* TCB_LISTEN = 1 |
* TCB_SYN_SENT = 2 |
* TCB_SYN_RECEIVED = 3 |
* TCB_ESTABLISHED = 4 |
* TCB_FIN_WAIT_1 = 5 |
* TCB_FIN_WAIT_2 = 6 |
* TCB_CLOSE_WAIT = 7 |
* TCB_CLOSING = 8 |
* TCB_LAST_ASK = 9 |
* TCB_TIME_WAIT = 10 |
* TCB_CLOSED = 11 |
* ebx fail |
Remarks: |
* Checks of a correctness is not made. |
|
====================================================================== |
========== Function 53, subfunction 7 - write in TCP-socket. ========= |
====================================================================== |
Parameters: |
* eax = 53 - number of the function |
* ebx = 7 - number subfunction |
* ecx = number socket |
* edx = number bytes for writing |
* esi = pointer on data for writing |
Returned value: |
* eax = 0xffffffff - error |
* eax = 0xffff - lack of memory |
* eax = 0 - successfully |
* ebx fail |
Remarks: |
* Check on valid number is minimum - are eliminated only not so incorrect |
not open numbers. |
* Number bytes for writing can not exceed 1500-40, though appropriate |
check is not done. |
|
====================================================================== |
============ Function 53, subfunction 8 - close TCP-socket. =========== |
====================================================================== |
Parameters: |
* eax = 53 - number of the function |
* ebx = 8 - number subfunction |
* ecx = number socket |
Returned value: |
* eax = -1 - incorrect number |
* eax = 0xffff - lack of memory for the package of closing socket |
* eax = 0 - successfully |
* in many cases eax fails (comes back the result of the function queue) - |
probably , is an error, which will be corrected |
* ebx fail |
Remarks: |
* The current realization does not close automatically all sockets thread |
at its completion. In particular, it is not necessary to kill thread |
with a heap open sockets - there will be an outflow of resources. |
* The current realization does not do checks on a correctness |
(sole, to what the attempt comes back error, - to close not open socket |
with correct number). |
|
====================================================================== |
======== Function 53, subfunction 9 - check - local port is free ===== |
====================================================================== |
Parameters: |
* eax = 53 - number of the function |
* ebx = 9 - number subfunction |
* ecx = number of a local port (the low 16 bits are used only) |
Returned value: |
* eax = 0 - port is used |
* eax = 1 - port is free |
* ebx fail |
|
====================================================================== |
Function 53, subfunction 255 - debug information of network driver. = |
====================================================================== |
Parameters: |
* eax = 53 - number of the function |
* ebx = 255 - number subfunction |
* ecx = type of requested information (see below) |
Returned value: |
* eax = requested information |
* ebx fail |
Possible values ecx: |
* 100: length of queue 0 (empty queue) |
* 101: length of queue 1 (ip-out queue) |
* 102: length of queue 2 (ip-in queue) |
* 103: length of queue 3 (net1out queue) |
* 200: number of units in the table ARP |
* 201: a size of the table ARP (in units) (20 in the current version) |
* 202: read a unit edx of the table ARP in the temporary buffer, |
whence take the information 5 subsequent types; |
in this case eax is not defined |
* 203: IP-address saved by the type 202 |
* 204: high dword of MAC-address saved by the type 202 |
* 205: low word of MAC-address saved by the type 202 |
* 206: a word of the status saved by the type 202 |
* 207: a word ttl, saved by the type 202 |
* 2: a total number of the obtained IP-packages |
* 3: a total number of the transferred(handed) IP-packages |
* 4: a total number dumps of the obtained packages |
* 5: a total number of the obtained ARP-packages |
* 6: the status of the driver of packages, 0 = is inactive, |
non-zero value = is active |
|
|
====================================================================== |
========== Function 55, subfunction 0 - load data for SB16. ========== |
====================================================================== |
Parameters: |
* eax = 55 - number of the function |
* ebx = 0 - number subfunction |
* ecx = pointer on the data (is copied 64 kilobytes, is used so much, |
how many is installed subfunction 2) |
Returned value: |
* function does not return value |
Remarks: |
* Format and size of data are installed subfunction 2. |
|
====================================================================== |
===== Function 55, subfunction 1 - begin to play data on SB16. ======= |
====================================================================== |
Parameters: |
* eax = 55 - number of the function |
* ebx = 1 - number subfunction |
Returned value: |
* function does not return value |
Remarks: |
* Previously data should be loaded subfunction 0 and their format |
subfunction 2 is defined. |
* Function returns handle, when playing the data began; after that the |
playing goes irrespective of the application (and at all does not |
require loading the processor). |
* Previously should be defined a base port SB16 (subfunction 4 functions 21) |
and channel DMA (subfunction 10 functions 21). |
|
====================================================================== |
====== Function 55, subfunction 2 - install a data format SB16. ====== |
====================================================================== |
Parameters: |
* eax = 55 - number of the function |
* ebx = 2 - number subfunction |
* ecx = 0 - install a digit capacity |
* edx = 1 - 8 bits mono |
* edx = 2 - 8 bits stereo |
* ecx = 1 - install a size of data |
* edx = size in bytes |
* ecx = 2 - install frequency of playing |
* edx = frequency |
Returned value: |
* function does not return value |
Remarks: |
* At loading the system the following default settings are installed: |
a digit capacity - 8 bits mono, size - 64 KB, frequency 44100 Hz. |
Nevertheless it is recommended obviously to install necessary values, |
as they could be reinstalled by any program. |
|
====================================================================== |
====================== Function 55, subfunction 55 =================== |
=============== Begin to play data on built speaker. ================= |
====================================================================== |
Parameters: |
* eax = 55 - number of the function |
* ebx = 55 - number subfunction |
* esi = pointer on the data |
Returned value: |
* eax = 0 - successfully |
* eax = 55 - error (speaker is disconnected or occupied) |
Data is an array of units of a variable length. |
Format of each unit is defined in first byte: |
* 0 = end of data |
* 1..0x80 = sets duration of sounding in 1/100 of second of note |
defined by direct value of frequency |
* following word (2 bytes) is contained by a divider of frequency; |
the frequency is defined as 1193180/divider |
* 0x81 = invalid |
* 0x82..0xFF = note defined by octave and number: |
* duration in 1/100 of second = (first byte) - 0x81 |
* there is one more byte; |
* (second byte) = 0xFF - pause |
* differently it looks like a*0x10+b, where b=number of the note |
in an octave from 1 up to 12, a=number of an octave (beginning from 0) |
Remarks: |
* Speaker play can be disable /enable subfunction 8 functions 18. |
* Function returns handle, having informed where follows the information |
on play. Playing goes irrespective of the program. |
* Data should be saved in memory at least up to the end of playing. |
|
====================================================================== |
================ Function 56 - write file to hard disk. ============== |
====================================================================== |
Parameters: |
* eax = 56 - number of the function |
* ebx = pointer on a filename |
* ecx = size data for writing (in bytes) |
* edx = pointer on data for writing |
* esi = pointer on path (ASCIIZ-string) |
Returned value: |
* eax = 0 - successfully, differently error code of a file system |
Remarks: |
* This function is obsolete; the function 70 allows to fulfil the same |
operations with the extended possibilities. |
* Given function assumes, that during its call one application any other |
application does not work with the hard disk. |
* Path to the file - ASCIIZ-string, which can be empty (if the file creates |
in the root) or to have the format /d1/d2/ .../dn, where all names of |
directories should have the format 8+3, i.e. 8 characters of a name |
and 3 characters of the extension without a separator if necessary |
supplemented by blanks; all characters should be capital. |
* Name to the file also should have the format 8+3. |
|
====================================================================== |
============== Function 58 - ðàáîòà ñ ôàéëîâîé ñèñòåìîé. ============== |
====================================================================== |
Parameters: |
* eax = 58 |
* ebx = pointer on information structure |
Returned value: |
* eax = 0 - successfully; differently error code of a file system |
* depending on subfunction the value and in other registers can come back |
Common format of information structure: |
* +0: dword: number subfunction |
* +4: dword: number of block |
* +8: dword: size |
* +12 = +0xC: dword: pointer on data |
* +16 = +0x10: dword: pointer on memory for system operation |
(4096 bytes) |
* +20 = +0x14: n db: ASCIIZ-string with a filename |
Specifications - in documentation on appropriate subfunction. |
Filename is insensitive to the register of latin characters, |
russian characters should be capital. |
Format of a filename: |
/base/number/dir1/dir2/.../dirn/file, |
where /base/number identifies the device, on which the file is searched: |
one of |
* /RD/1 = /RAMDISK/1 for access to ramdisk |
* /FD/1 = /FLOPPYDISK/1 for access to first floppy - drive, |
/FD/2 = /FLOPPYDISK/2 for second floppy - drive |
* /HD/x = /HARDDISK/x - out-of-date variant of access to the hard disk |
(in this case base is defined subfunction 7 functions 21), |
x - number of partition (beginning from 1) |
* /HD0/x, /HD1/x, /HD2/x, /HD3/x for access accordingly |
to devices IDE0 (Primary Master), IDE1 (Primary Slave), |
IDE2 (Secondary Master), IDE3 (Secondary Slave); |
x - number of partition on selected hard disk, varies from 1 up to 255 |
(on each of hard disks the indexing starts with 1) |
Remarks: |
* In first two cases usage FIRST instead of 1, SECOND instead of 2 is |
admitted, but to use this possibility it is not recommended for |
convenience of transition on the future extensions. |
* Imposed limitation n<=39. |
* Names of folders and file dir1..., dirn, file should be in the format 8.3: |
a name no more than 8 characters, point, extension no more than 3 |
characters. The tail blanks are ignored. Other blanks be does not owe. |
If the name occupies equally 8 characters, the point can be omitted |
(though to use it it is not recommended for convenience of transition |
on the future extensions). |
Examples: |
* '/RAMDISK/FIRST/KERNEL.ASM',0 |
'/rd/1/kernel.asm',0 |
* '/HD0/1/kernel.asm',0 |
* '/hd0/1/menuet/pics/tanzania.bmp',0 |
Accessible subfunction: |
* subfunction 0 - reading of a file/folder |
* subfunction 1 - overwriting of the file |
* subfunction 2 - deleting of a file/folder |
* subfunction 3 - writing data in the existing file |
* subfunction 4 - creation of a folder |
* subfunction 5 - renaming/moving of a file/folder |
* subfunction 8 - LBA-reading from the device |
* subfunction 12 - definition of a file size |
* subfunction 13 - definition of attributes of a file/folder |
* subfunction 14 - definition of date/time of a file/folder |
* subfunction 15 - obtaining of the information about a file system |
* subfunction 16 - start of the application |
|
|
====================================================================== |
======= Function 58, subfunction 0 - reading of a file/folder. ======= |
====================================================================== |
Parameters: |
* eax = 58 |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 0 = number subfunction |
* +4: dword: number of block for reading (beginning from 0) |
* +8: dword: éuantity blocks for reading |
* +12 = +0xC: dword: pointer on the buffer, where the data will be written |
* +16 = +0x10: dword: pointer on the buffer for system operation |
(4096 bytes) |
* +20 = +0x14: ASCIIZ-name of the file, the rules of creation of names |
are indicated in the common description |
Returned value: |
* eax = 0 - successfully, differently error code of a file system |
* ebx = file size (in bytes) or |
-1=0xffffffff, if the file is not retrieved |
Remarks: |
* Size of block - 512 bytes. |
* This function is obsolete, for reading files use subfunction 0 |
functions 70, for reading folders - subfunction of 1 function 70. |
* Function allows to read contents of a folder. From file systems is |
supported only FAT. The format of a FAT-folder is described in any |
documentation on FAT. |
* Size of a folder is defined on a size of a chain of clusters in FAT. |
* If the file was terminated earlier, than last requested block was read, |
the function will read, how many can, then will return eax=6 (EOF). |
* Function allows to read root folders /rd/1, /fd/x, /hd [n] /x, but |
in first two cases the current implementation does not follow the |
installed rules: |
for /rd/1: |
* if 0 blocks for reading are indicated, it is considered, |
that is requested 1; |
* if is requested more than 14 blocks or the initial block is not |
less 14, comes back eax=5 (not found) and ebx =-1; |
* size of the root ramdisk = 14 blocks, 0x1C00=7168 bytes; but comes |
back ebx=0 (except for a case of the previous item); |
* strangely enough, it is possible to read 14 block (there, generally |
speaking, garbage - I remind, the score carries on with 0); |
* if one block with number, not smaller 14 was requested even, |
comes back eax=6 (EOF); differently eax=0. |
for /fd/x: |
* if the initial block is not less 14, comes back eax=5 (not found) |
and ebx=0; |
* by the way speaking, the format FAT12 admits diskettes with a size |
of the root less or more than 14 blocks; |
* checks of length is not done; |
* if it was possible to read given with a diskette, comes back eax=0, |
ebx=0; otherwise eax=10 (access denied), ebx =-1. |
* Function handles reading special folders /, /rd, /fd, /hd [n]; but the |
result does not correspond expected (on operation with usual |
files/folders), does not follow the installed rules, can vary in the |
following versions of a kernel and consequently is not described. |
For obtaining the information about the equipment use subfunction 11 |
functions 18 or read appropriate folders subfunction of 1 function 70. |
|
====================================================================== |
======== Function 58, subfunction 1 - overwriting of the file. ======= |
====================================================================== |
If the file does not exist, it creates. |
If the file exists, it is rewritten. |
Parameters: |
* eax = 58 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 1 = number subfunction |
* +4: dword: ignored (install in 0) |
* +8: dword: number bytes for writing |
* +12 = +0xC: dword: pointer on data for çàïèñè |
* +16 = +0x10: dword: pointer on buffer for system operation |
(4096 bytes) |
* +20 = +0x14: ASCIIZ-name of file, the rules of creation of names |
are indicated in the common description |
Returned value: |
* eax = 0 - successfully, differently error code of a file system |
* ebx fail |
Remarks: |
* This function is obsolete, use subfunction 2 functions 70. |
|
====================================================================== |
====== Function 58, subfunction 2 - deleting of a file/folder. ======= |
====================================================================== |
Parameters: |
* eax = 58 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 2 = number subfunction |
* +4: dword: ignored |
* +8: dword: ignored |
* +12 = +0xC: dword: ignored |
* +16 = +0x10: dword: pointer on buffer for system operation |
(4096 bytes) |
* +20 = +0x14: ASCIIZ-name of file, the rules of creation of names |
are indicated in the common description |
Returned value: |
* eax = 0 - successfully, differently error code of a file system |
* ebx fail |
Remarks: |
* By operation with a diskette it is not necessary to delete a nonblank |
folder. The code of operation with the hard disk nonblank folders |
deletes correctly (i.e. recursively with all files and nested folders). |
Ramdisk of folders does not support. |
|
====================================================================== |
=== Function 58, subfunction 3 - writing data in the existing file === |
====================================================================== |
Parameters: |
* eax = 58 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 3 = number subfunction |
* +4: dword: initial position in the file; -1 = to add in the end |
* +8: dword: number bytes for writing |
* +12 = +0xC: dword: pointer on data for writing |
* +16 = +0x10: dword: pointer on buffer for system operation |
(4096 bytes) |
* +20 = +0x14: ASCIIZ-name of file, the rules of creation of names |
are indicated in the common description |
Returned value: |
* eax = 0 - successfully, differently error code of a file system |
* ebx fail |
Remarks: |
* Ramdisk and the diskettes do not support this function, |
it only for hard disks. |
* File should already exist (differently comes back 5, not found). |
For creation of files use subfunction 1. |
* If the initial position is more than a file size, comes back eax=6 (EOF). |
If the finite position is more than a file size, the file extends. |
* Code of processing of data writing for the hard disk interpretes zero |
value of a field +8 as the instruction of a truncation of the file |
up to a size indicated in a field +4. However code of processing of |
58-th function locks this possibility for the applications, at once |
returning handle (with eax=0) in case of a zero size. |
|
====================================================================== |
======== Function 58, subfunction 4 - creation of a folder. ========== |
====================================================================== |
Parameters: |
* eax = 58 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 4 = number subfunction |
* +4: dword: ignored |
* +8: dword: ignored |
* +12 = +0xC: dword: ignored |
* +16 = +0x10: dword: pointer on buffer for system operation |
(4096 bytes) |
* +20 = +0x14: ASCIIZ-name of file, the rules of creation of names |
are indicated in the common description |
Returned value: |
* eax = 0 - successfully, differently error code of a file system |
* ebx fail |
Remarks: |
* Ramdisk and the diskettes do not support this function, |
it only for hard disks. |
|
====================================================================== |
=== Function 58, subfunction 5 - renaming/moving of a file/folder. === |
====================================================================== |
Parameters: |
* eax = 58 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 5 = number subfunction |
* +4: dword: ignored |
* +8: dword: ignored |
* +12 = +0xC: dword: ignored |
* +16 = +0x10: dword: pointer on buffer for system operation |
(4096 bytes) |
* +20 = +0x14: ASCIIZ-name of file, the rules of creation of names |
are indicated in the common description |
* +20+n: (at once after a completing null character) new ASCIIZ-name, |
should start with /hd/1, that is interpreted as the hard disk |
indicated in the first name |
(moving from one disk on another is not supported) |
Returned value: |
* eax = 0 - successfully, differently error code of a file system |
* ebx fail |
Remarks: |
* Ramdisk and the diskettes do not support this function, |
it only for hard disks. |
* If new ASCIIZ-name strongly incorrect, i.e. does not start with /hd/1, |
/hd/first, /harddisk/1, /harddisk/first or after that beginnings there |
is a blank or character with the code 0, the function returns, strangely |
enough, error code 4. Is the sole function, which in general returns |
this code. |
|
====================================================================== |
====== Function 58, subfunction 8 - LBA-reading from the device. ===== |
====================================================================== |
Parameters: |
* eax = 58 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 8 = number subfunction |
* +4: dword: number of the block for reading (beginning from 0) |
* +8: dword: ignored (install in 1) |
* +12 = +0xC: dword: pointer on buffer, where data will be written |
(512 bytes) |
* +16 = +0x10: dword: pointer on buffer for system operation |
(4096 bytes) |
* +20 = +0x14: ASCIIZ-name of the device: is not sensitive to the register, |
one of /rd/1 = /RamDisk/1, /hd/n = /HardDisk/n, |
1<=n<=4 - number of device: 1=IDE0, ..., 4=IDE3. |
Instead of digits is admitted, though usage 'first', 'second', 'third', |
'fourth' is not recommended for convenience of transition on the future |
extensions. |
Returned value: |
* if device name /hd/xxx is indicated, where xxx is not in list above: |
* eax = ebx = 1 |
* if the incorrect device name is indicated |
(except for the previous case): |
* eax = 5 |
* ebx does not vary |
* if the LBA-access is prohibited subfunction 11 functions 21: |
* eax = 2 |
* ebx fail |
* for ramdisk attempt of reading of the block outside ramdisk |
(18*2*80 blocks) results to |
* eax = 3 |
* ebx = 0 |
* at successful reading: |
* eax = ebx = 0 |
Remarks: |
* Size of the block - 512 bytes; one block is read. |
* It is not necessary to rely on returned value, it can vary in |
the following versions. |
* It is required, that the LBA-access to devices subfunction 11 functions 21 |
should be allowed. Find out it it is possible by call |
subfunction 11 functions 26. |
* LBA-reading of a diskette is not supported. |
* Function reads out the data of the physical hard disk; if for any reasons |
the data of the concrete unit are necessary, will come to define initial |
sector of this unit (or directly through MBR, or from the extended |
structure returned same subfunction 11 functions 18). |
* Function the error code of the hard disk does not check, so search of |
nonexistent sector all the same something will read (more probably |
everything, zero, but it is defined by the device) and it will be |
considered as success (eax=0). |
|
============================================================================= |
= Function 58, subfunction 15 - obtaining of information about a file system. |
============================================================================= |
Parameters: |
* eax = 58 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 15 = number of the function |
* +4: dword: ignored |
* +8: dword: ignored |
* +12 = +0xC: dword: ignored |
* +16 = +0x10: dword: ignored |
* +20 = +0x14: (second character is checked only, at once after /) |
/rd=/RAMDISK or /hd=/HARDDISK |
Returned value: |
* If second character does not belong to set {'r','R','h','H'}: |
* eax = 3 |
* ebx = ecx = dword [fileinfo] = 0 |
* for ramdisk: |
* eax = 0 (success) |
* ebx = total number of clusters = 2847 |
* ecx = number of free clusters |
* dword [fileinfo] = cluster size = 512 |
* for the hard disk: base and partition are defined |
subfunctions 7 and 8 functions 21: |
* eax = 0 (success) |
* ebx = total number of clusters |
* ecx = number of free clusters |
* dword [fileinfo] = cluster size (in bytes) |
Remarks: |
* Be not surprised to strange layout of 4-th returned parameter - when this |
code was written, at system calls to the application the registers eax, |
ebx, ecx (from pushad-structure transmitted as argument to the system |
function) came back only. Now it is corrected, so, probably, it is |
meaningful to return a cluster size in edx, while this function have |
not begun to use |
* Generally still exists subfunction 11 functions 18, returning the |
information on a file system. Under the extended table of a disk |
subsystem it is possible to define a cluster size (there it is stored |
in sectors) and total number of clusters for hard disks. |
|
====================================================================== |
======== Function 58, subfunction 16 - start of application. ========= |
====================================================================== |
Parameters: |
* eax = 58 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 16 = number subfunction |
* +4: dword: Field of flags: |
* bit 0: to start the process as debugged |
* other bits are reserved and should be installed in 0 |
* +8: dword: 0 or pointer on ASCIIZ-string with parameters |
* +12 = +0xC: dword: ignored |
* +16 = +0x10: dword: pointer on buffer for system operation |
(4096 bytes) |
* +20 = +0x14: ASCIIZ-name of file, the rules of creation of names |
are indicated in the common description |
Returned value: |
* eax > 0 - program is loaded, eax contains PID |
* eax < 0 - has taken place error, -eax contains an error code |
of a file system |
Remarks: |
* This function is obsolete, use subfunction 7 functions 70. |
* Command line should be ended by the character with the code 0 |
(ASCIIZ-strings); it are taken into account or all characters up to |
completing zero inclusively, or the first 256 characters, that are less. |
* If the process is started as debugged, it creates in the frozen status; |
for start use subfunction 5 functions 69. |
|
====================================================================== |
======== Function 59 - get information on last system calls. ========= |
====================================================================== |
Get data on all system calls of all processes. |
Parameters: |
* eax = 59 - number of the function |
* ebx = 0 - sole subfunction |
* ecx = pointer on buffer |
* edx = size of buffer |
Returned value: |
* eax = total number of system calls made from moment |
of loading system (modulo 2^32) |
* ebx = 0 |
Format of information about one call: (size = 0x40 = 64 bytes) |
* +0: dword: PID process/thread |
* +4: 7*dword: garbage |
* +32 = +0x20: dword: value edi by call |
* +36 = +0x24: dword: esi |
* +40 = +0x28: dword: ebp |
* +44 = +0x2C: dword: pointer of stack of kernel handler |
* +48 = +0x30: dword: ebx |
* +52 = +0x34: dword: edx |
* +56 = +0x38: dword: ecx |
* +60 = +0x3C: dword: eax (=number system function) |
Remarks: |
* Function is used only in the application systrace. It is rather difficult |
to present a situation, in which this application or this function are |
really useful, and all system calls for support of this function are a |
little decelerated (though and not strongly)... |
* In this connection there is a sentence support of this function from |
a kernel to remove absolutely, together with the application systrace. |
* Information on system calls is saved in system ring buffer |
on 0x10 of inputs. |
This function simply copies the indicated size given from the mentioned |
buffer to the indicated address. |
* To what from inputs in the buffer corresponds to last call, it is possible |
to define on value eax, namely, |
input (eax and 0xF) (on offset (eax and 0xF) *0x40). |
* In current implementation the seldom meeting problems of |
unsynchronization are possible, when about some calls the |
information becomes outdated. |
* Under the system buffer the page, 4 KB is allocated. |
Size of an input = 64 bytes. |
Why 16 inputs - not clearly are used only. |
* Value esp at moment of system call by this function cannot be found out. |
* Checks of a correctness edx in current implementation is not done. |
|
====================================================================== |
=========== Function 60 - Inter Process Communication (IPC). ========== |
====================================================================== |
IPC is applied to sendings the messages from one process / thread to another. |
Thus it is necessary previously to agree how to interpreted |
the concrete message. |
|
-------- Subfunction 1 - install area for obtaining IPC --------- |
Is called by the process - receiver. |
Parameters: |
* eax = 60 - number of the function |
* ebx = 1 - number subfunction |
* ecx = pointer on buffer |
* edx = size of buffer |
Returned value: |
* eax = 0 - always successfully |
Ôîðìàò IPC-áóôåðà: |
* +0: dword: if here not 0, the buffer is considered disabled; lock/unblock |
the buffer, when you with it actively work also to you it is necessary, |
that the data of the buffer from the outside varied |
(the new messages) not acted |
* +4: dword: occupied place in the buffer (in bytes) |
* +8: first message |
* +8+n: second message |
* ... |
Format of message: |
* +0: dword: PID of process / thread which has transmitted the message |
* +4: dword: length of the message (not including this header) |
* +8: n*byte: data messages |
|
--------------- Subfunction 2 - transmit message IPC. ---------------- |
Is called by the process - initiator. |
Parameters: |
* eax = 60 - number of the function |
* ebx = 2 - number subfunction |
* ecx = PID of receiver |
* edx = pointer on message data |
* esi = length of message (in bytes) |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - receiver has not defined buffer for IPC-messages |
(can be, was not in time yet, and there can be, it not that thread, |
which is necessary) |
* eax = 2 - receiver has blocked the IPC-buffer; try slightly to wait |
* eax = 3 - overflow of IPC-buffer of receiver |
* eax = 4 - process/thread with such PID does not exist |
Remarks: |
* System at once after writing the IPC-message in the buffer dispatches |
to stream - receiver event with the code 7 (see codes of events). |
|
====================================================================== |
==== Function 61 - get parameters for direct access to a graphics. === |
====================================================================== |
Data of graphics screen are accessible to program (area of memory, which purely |
also displays contents of screen) directly without calls of system functions |
through the selector gs: |
mov eax, [gs:0] |
will place in eax first dword of buffer containing information on colour |
of left upper point (and, probably, colour of several following). |
mov [gs:0], eax |
by operation in modes VESA c LFB will install colour of left upper point |
(and, probably, colour of several following). |
Interpretations given of the graphics screen need knowledge of some parameters, |
which come back by this function. |
Remarks: |
* Parameters of a graphics very seldom vary at system operation, namely, |
only in cases, when the user works with the program VRR. |
* At change of videomode the system redraw all windows |
(event with the code 1) and redraw a background (event 5). |
Same events occur and in other cases, which meet much more often, |
than change of videomode. |
* By operation in videomodes with LFB the selector gs specifies on purely |
LFB, so reading / writing on gs result directly in change of contents of |
the screen. By operation in videomodes without LFB gs specifies some area |
of the given kernel, and all functions of output on the screen honesty |
fulfil double operation on writing directly on the screen and on |
writing in this buffer. In result at reading contents of this buffer the |
results correspond to contents of the screen (with, generally speaking, |
large colour permission), and writing ignored. |
Exception is the mode 320*200, for which in main loop system thread the |
upgrade of the screen is fulfilled according to movements |
of a mouse pointer. |
|
------------------------- Screen resolution -------------------------- |
Parameters: |
* eax = 61 - number of the function |
* ebx = 1 - number subfunction |
Returned value: |
* eax = [permission on axis x] *65536 + [permission on axis y] |
Remarks: |
* It is possible to use the function 14 that it returns sizes on 1 less. |
It completely equivalent way. |
|
------------------------ Number bits on pixel ------------------------ |
Parameters: |
* eax = 61 - number of the function |
* ebx = 2 - number subfunction |
Returned value: |
* eax = number bits on pixel (24 or 32) |
|
------------------------ Number bytes on string ------------------------ |
Parameters: |
* eax = 61 - number of the function |
* ebx = 3 - number subfunction |
Returned value: |
* eax = number bytes, which is occupied by one string of the scanning |
(horizontal line on the screen) |
|
====================================================================== |
==== Function 62, subfunction 0 - get version of PCI-interface. ===== |
====================================================================== |
Parameters: |
* eax = 62 - number of the function |
* bl = 0 - number subfunction |
Returned value: |
* eax = -1 - access to PCI is prohibited; differently |
* ah.al = version of PCI-interface (ah=version, al=subversion) |
* high word eax contains a zero |
Remarks: |
* Low level access to PCI for applications subfunction 12 |
functions 21 previously should be allowed. |
* If PCI BIOS is not supported, the value ax is not defined. |
|
====================================================================== |
==== Function 62, subfunction 1 - get number of last PCI-bus. === |
====================================================================== |
Parameters: |
* eax = 62 - number of the function |
* bl = 1 - number subfunction |
Returned value: |
* eax = -1 - access to PCI is prohibited; differently |
* al = number of last PCI-bus; the stayed bits eax fail |
Remarks: |
* Low level access to PCI for applications subfunction 12 |
functions 21 previously should be allowed. |
* If PCI BIOS is not supported, the value al is not defined. |
|
====================================================================== |
====================== Function 62, subfunction 2 ==================== |
=========== Get mechanism of call to configuration space PCI. ======== |
====================================================================== |
Parameters: |
* eax = 62 - number of the function |
* bl = 2 - number subfunction |
Returned value: |
* eax = -1 - access to PCI is prohibited; differently |
* al = mechanism (1 or 2); the other bits eax fail |
Remarks: |
* Low level access to PCI for applications subfunction 12 |
functions 21 previously should be allowed. |
* Mechanism of call is selected according to characteristics of equipment. |
* Subfunctions of reading and writing automatically work with |
selected mechanism. |
|
====================================================================== |
========= Function 62, subfunction 4,5,6 - read PCI-register. ======== |
====================================================================== |
Parameters: |
* eax = 62 - number of the function |
* bl = 4 - read bytes |
* bl = 5 - read a word |
* bl = 6 - tread a double word |
* bh = number of PCI-bus |
* ch = dddddfff, where ddddd = number of device on bus, |
fff = number of function of device |
* cl = number of the register (should be even for bl=5, |
be divided on 4 for bl=6) |
Returned value: |
* eax = -1 - error (prohibited access to PCI |
or unsupported parameters); differently |
* al/ax/eax (depending on the requested size) contains the data; |
the rest of the register eax fail |
Remarks: |
* Low level access to PCI for applications subfunction 12 |
functions 21 previously should be allowed. |
* Access mechanism 2 supports only 16 devices on the bus and ignores number |
of the function. To receive an access mechanism it is possible by call |
subfunction 2. |
* Some registers are standard and exist for all devices, some are defined |
by the concrete device. The list first enters, for example, in known |
Interrupt List by Ralf Brown |
(http://www.pobox.com/~ralf/files.html, |
ftp://ftp.cs.cmu.edu/afs/cs/user/ralf/pub/); |
list second should be indicated in documentation on the device. |
|
====================================================================== |
====== Function 62, subfunction 8,9,10 - write in PCI-register. ====== |
====================================================================== |
Parameters: |
* eax = 62 - number of the function |
* bl = 8 - write bytes |
* bl = 9 - write a word |
* bl = 10 - write a double word |
* bh = number of PCI-bus |
* ch = dddddfff, where ddddd = number of the device on bus, |
fff = number of function of device |
* cl = number of register (should be even for bl=9, |
be divided on 4 for bl=10) |
* dl/dx/edx (depending on requested size) contains given for writing |
Returned value: |
* eax = -1 - error (prohibited access to PCI or unsupported parameters) |
* eax = 0 - successfully |
Remarks: |
* Low level access to PCI for applications subfunction 12 |
functions 21 previously should be allowed. |
* Access mechanism 2 supports only 16 devices on the bus and ignores number |
of the function. To receive an access mechanism it is possible by call |
subfunction 2. |
* Some registers are standard and exist for all devices, some are defined |
by the concrete device. The list first enters, for example, in known |
Interrupt List by Ralf Brown; |
list second should be indicated in documentation on the device. |
|
====================================================================== |
============== Function 63 - work with debugging board. ============== |
====================================================================== |
Debugging board represents the system buffer (on 512 bytes), in which any |
program can write (generally speaking, arbitrary) data and from which other |
program can these data read. |
There is an agreement, according to which written given - text strings |
interpreted as of the debug message on a course of execution of the program. |
The kernel in the defined situations also writes to board of debugging of the |
item of information about execution of some functions; under the agreement of |
the message of a kernel start with the prefix " K: ". |
For review of board of debugging the application board is created which reads |
out the data from the buffer and displays them in the window. board understands |
a sequence of codes 13,10 as transition on new string |
Character with the zero code at the end of string is not mandatory, |
but also does not prevent. |
As has appeared of the debugger necessity of board of debugging a little has |
decreased, as the debugger allows completely to inspect a course of execution |
of the program, and for this purpose it is not required of any efforts on the |
part of the program. Nevertheless in many cases the board of debugging |
continues to remain useful. |
|
---------------------------- Writing of byte ---------------------------- |
Parameters: |
* eax = 63 - number of the function |
* ebx = 1 - number subfunction |
* cl = bytes of data |
Returned value: |
* function does not return value |
Remarks: |
* Byte is written in buffer. Length of buffer - 512 bytes. |
At overflow of the buffer all obtained data are lost also filling |
starts again with zero. |
* For output to board of debugging of more complex objects (strings, numbers) |
this function called in cycle suffices. It is possible to not write |
manually appropriate code, and to take advantage of the file debug.inc, |
included in the distribution kit. |
|
---------------------------- Reading of byte ---------------------------- |
Takes away bytes from the buffer. |
Parameters: |
* eax = 63 - number of the function |
* ebx = 2 - number subfunction |
Returned value: |
* eax = ebx = 0 - buffer is empty |
* eax = bytes, ebx = 1 - bytes successfully is read |
|
====================================================================== |
========== Function 64 - reallocate memory of application. ========== |
====================================================================== |
Parameters: |
* eax = 64 - number of the function |
* ebx = 1 - sole subfunction |
* ecx = new size of memory |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - not enough of memory |
Remarks: |
* At present this function is a sole resource for dynamic |
allocation/free of memory for application. |
|
====================================================================== |
================= Function 66 - work with keyboard. ================= |
====================================================================== |
Mode of input influences results of reading of keys by function 2. |
At program loading for it ASCII-mode of input is installed. |
|
-------- Subfunction 1 - install a keyboard mode. --------- |
Parameters: |
* eax = 66 - number of the function |
* ebx = 1 - number subfunction |
* ecx = mode: |
* 0 = normal (ASCII-characters) |
* 1 = scancodes |
Returned value: |
* function does not return value |
|
--------- Subfunction 2 - get a keyboard mode. ---------- |
Parameters: |
* eax = 66 - number of the function |
* ebx = 2 - number subfunction |
Returned value: |
* eax = current mode |
|
------- Subfunction 3 - get a status of direction keys. -------- |
Parameters: |
* eax = 66 - number of the function |
* ebx = 3 - number subfunction |
Returned value: |
* eax = bit mask: |
* Bit 0 (mask 1): left Shift is pressed |
* Bit 1 (mask 2): right Shift is pressed |
* Bit 2 (mask 4): left Ctrl is pressed |
* Bit 3 (mask 8): right Ctrl is pressed |
* Bit 4 (mask 0x10): left Alt is pressed |
* Bit 5 (mask 0x20): right Alt is pressed |
* Bit 6 (mask 0x40): CapsLock is included |
* Bit 7 (mask 0x80): NumLock is included |
* Bit 8 (mask 0x100): ScrollLock is included |
* The other bits are reset |
|
----- Subfunction 4 - install common system "hotkey". ----- |
Applications which have installed it are informed only on pressing "hotkey"; |
the active application (to which acts all normal input) such keys does not get. |
Notice consists in sending event with the code 2. |
To read "hotkey" it is possible the same as also usual, - function 2. |
Parameters: |
* eax = 66 - number of the function |
* ebx = 4 - number subfunction |
* cl sets scancode of the key; |
ãse cl=0 for definition of combinations of a type Ctrl+Shift |
* edx = 0xXYZ ûets possible statuses of direction keys: |
* Z (low 4 bits) are set by a status of keys LShift and RShift: |
* 0 = any of keys should not be pressed; |
* 1 = only one of keys is should be pressed; |
* 2 = both keys should be pressed; |
* 3 = should be pressed LShift, but not RShift; |
* 4 = should be pressed RShift, but not LShift |
* Y - is similar for LCtrl and RCtrl; |
* X - is similar for LAlt and RAlt |
Returned value: |
* eax=0 - successfully |
* eax=1 - too much "hotkey" is admitted (maximal 256) |
Remarks: |
* Hotkey can work either at pressing, or at release. Scancode of release |
of the key on 128 it is more, than scancode of pressing |
(i.e. high bit is installed). |
* Some applications can install the same combination; all such applications |
will be informed on pressing such combination. |
|
------ Subfunction 5 - delete installed "hotkey". ------- |
Parameters: |
* eax = 66 - number of the function |
* ebx = 5 - number subfunction |
* cl = scancode of key and edx = 0xXYZ same, as well as in subfunction 4 |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - there is no such hotkey |
Remarks: |
* At completion of process / thread all hotkey, installed by it are deleted. |
* Function call does not influence other applications. If other application |
has defined same combination, it will receive still notices. |
|
====================================================================== |
============ Function 67 - change location/sizes of window. =========== |
====================================================================== |
Parameters: |
* eax = 67 - number of the function |
* ebx = new x-coordinate of the window |
* ecx = new y-coordinate of the window |
* edx = new x-size of the window |
* esi = new y-size of the window |
Returned value: |
* function does not return value |
Remarks: |
* Value -1 for the parameter means "to not change"; for example, for moving |
the window without resizing it is possible to specify edx=esi =-1. |
* Previously window should be defined by the function 0. |
It sets initial coordinates and sizes of the window. |
* Sizes of the window are understood in sense of the function 0, |
i.e. on one pixel it is less, than real sizes. |
* Function call for the maximized windows is simple ignored. |
* For windows of appropriate styles a location and/or the sizes can be |
changed by the user; current a location and the sizes can be obtained |
by function call 9. |
* Function dispatches to window event redraw (with the code 1). |
|
====================================================================== |
== Function 68, subfunction 0 - get the counter of task switchings. == |
====================================================================== |
Parameters: |
* eax = 68 - number of the function |
* ebx = 0 - number subfunction |
Returned value: |
* eax = number of task switchings from the moment of loading the system |
(modulo 2^32) |
|
====================================================================== |
====================== Function 68, subfunction 1 ==================== |
=========== To switch to the following thread of execution. ========== |
====================================================================== |
Function completes a current time slice allocated to stream, |
and switches to the following.(What thread what process will be by the |
following, to predict it is impossible). |
Later, when up to current thread queue will reach, |
the execution will be restored. |
Parameters: |
* eax = 68 - number of the function |
* ebx = 1 - number subfunction |
Returned value: |
* function does not return value |
|
====================================================================== |
============ Function 68, subfunction 2 - cache + rdpmc. ============= |
====================================================================== |
Parameters: |
* eax = 68 - number of the function |
* ebx = 2 - number subfunction |
* ecx = required operation: |
* ecx = 0 - to permit execution of the instruction rdpmc |
(ReaD Performance-Monitoring Counters) |
* ecx = 1 - find out, enabled/disabled cache |
* ecx = 2 - enabled cache |
* ecx = 3 - disabled cache |
Returned value: |
* for ecx=0: |
* eax = value cr4 |
* for ecx=1: |
* eax = (cr0 and 0x60000000): |
* eax = 0 - cache enabled |
* eax <> 0 - cache disabled |
* for ecx=2 and ecx=3: |
* function does not return value |
|
====================================================================== |
=========== Function 68, subfunction 3 - read MSR-register. ========== |
====================================================================== |
MSR = Model Specific Register; the complete list of the MSR-registers of the |
processor contains in documentation on the processor (for example, IA-32 Intel |
Architecture Software Developer's Manual, Volume 3, Appendix B); each set of |
processors has the subset of the MSR-registers. |
Parameters: |
* eax = 68 - number of the function |
* ebx = 3 - number subfunction |
* ecx ignored |
* edx = address MSR |
Returned value: |
* ebx:eax = high:low dword of result |
Remarks: |
* Instruction in ecx nonexistent or non-realized for of the given processor |
MSR will entail exception in a kernel, which will kill thread. |
* Previously it is necessary to define, whether are supported MSR as a whole, |
command cpuid. Differently there will be already other exception in a |
kernel, which all the same will kill thread. |
|
====================================================================== |
========= Function 68, subfunction 4 - çàïèñàòü â MSR-ðåãèñòð. ========= |
====================================================================== |
MSR = Model Specific Register; the complete list of the MSR-registers of the |
processor contains in documentation on the processor (for example, IA-32 Intel |
Architecture Software Developer's Manual, Volume 3, Appendix B); each set of |
processors has the subset of the MSR-registers. |
Parameters: |
* eax = 68 - number of the function |
* ebx = 4 - number subfunction |
* ecx ignored |
* edx = address MSR |
* esi:edi = high:low dword of result |
Returned value: |
* ebx:eax = copy esi:edi |
Remarks: |
* Instruction in ecx nonexistent or non-realized for of the given processor |
MSR will entail exception in a kernel, which will kill thread. |
* Previously it is necessary to define, whether are supported MSR as a whole, |
command cpuid. Differently there will be already other exception in a |
kernel, which all the same will kill thread. |
|
====================================================================== |
======= Function 68, subfunction 5 - allocate physical memory. ======= |
====================================================================== |
Parameters: |
* eax = 68 - number of the function |
* ebx = 5 - number subfunction |
* ecx = size (in bytes) |
Returned value: |
* eax = physical address of allocated memory |
Remarks: |
* Usual applications should not use this function, it is intended for of a |
case, when by operation with any device it is required to place the data |
to the known physical address. (In effect, this function was developed for |
AC97WAV.) |
* Number of blocks of the actual storage is limited (constant 24, and this |
constant includes and some memories for of needs of a kernel). |
* Free allocated memory it is possible subfunction 6, in copying data |
there/back are engaged subfunction 7 and 8. |
|
====================================================================== |
========= Function 68, subfunction 6 - free physical memory. ========= |
====================================================================== |
Parameters: |
* eax = 68 - number of the function |
* ebx = 6 - number subfunction |
* ecx = physical address of memory |
Returned value: |
* function does not return value |
Remarks: |
* Usual applications should not use this function, it is intended for of a |
case, when by operation with any device it is required to place the data |
to the known physical address. (In effect, this function was developed for |
AC97WAV.) |
* Memory should be earlier allocated subfunction 5. |
|
====================================================================== |
==== Function 68, subfunction 7 - write data in physical memory. ===== |
====================================================================== |
Parameters: |
* eax = 68 - number of the function |
* ebx = 7 - number subfunction |
* ecx = physical address |
* edx = pointer on data (in application) |
* esi = data size (in bytes) |
Returned value: |
* function does not return value |
Remarks: |
* Usual applications should not use this function, it is intended for of a |
case, when by operation with any device it is required to place the data |
to the known physical address. (In effect, this function was developed for |
AC97WAV.) |
* Range of physical addresses should lay inside allocated subfunction 5 |
blocks of physical memory. |
* Checks of a correctness is not made. |
|
====================================================================== |
==== Function 68, subfunction 8 - read data from physical memory. ==== |
====================================================================== |
Parameters: |
* eax = 68 - number of the function |
* ebx = 8 - number subfunction |
* ecx = physical address |
* edx = pointer on buffer for data (in application) |
* esi = data size (in bytes) |
Returned value: |
* function does not return value |
Remarks: |
* Usual applications should not use this function, it is intended for of a |
case, when by operation with any device it is required to place the data |
to the known physical address. (In effect, this function was developed for |
AC97WAV.) |
* Range of physical addresses should lay inside allocated subfunction 5 |
blocks of physical memory. |
* Checks of a correctness is not made. |
|
====================================================================== |
====================== Function 69 - debugging. ====================== |
====================================================================== |
Process can load other process as debugged by installation of appropriate bit |
by call subfunction 16 functions 58. Process can have only one debugger; |
one process can debug some processes. System notifies the debugger on events |
occurring to the debugged process. Messages are written in the buffer defined |
subfunction 0. |
Ôîðìàò ñîîáùåíèÿ: |
+0: dword: the code of the message |
+4: dword: PID of the debugged process |
+8: there can be additional data defined by the code of the message |
Codes of messages: |
* 1 = exception |
* in addition transfers dword-number of exception |
* process is paused |
* 2 = process was completed |
* comes at any completion: both through the system function -1, |
and at "murder" by any other process (including debugger) |
* 3 = debug exception int 1 = #DB |
* in addition transfers a dword-image of the register DR6: |
* Bits 0-3: the condition of appropriate breakpoint |
(installed subfunction 9) is fulfilled |
* Bit 14: the exception has taken place because of the mode of step |
tracing (the flag TF is installed) |
* process is paused |
At completion of the debugger all debugged processes are killed. |
If the debugger it does not want, it should previously be disabled |
subfunction 3. |
|
All subfunction are applicable only to the processes/threads started from |
current function 58 with a installed debugging flag. |
Debugging of multithread programs is not supported yet. |
Full list subfunctions: |
* subfunction 0 - define area given for of debug messages |
* subfunction 1 - get a status of the registers debugged thread |
* subfunction 2 - install a status of the registers debugged thread |
* subfunction 3 - disabled from the debugged process |
* subfunction 4 - paused debugged thread |
* subfunction 5 - restored execution debugged thread |
* subfunction 6 - read from memory of the debugged process |
* subfunction 7 - write in memory of the debugged process |
* subfunction 8 - complete debugged thread |
* subfunction 9 - place/remove the hardware point break |
|
====================================================================== |
====================== Function 69, subfunction 0 ==================== |
============= Define area given for of debug messages. =============== |
====================================================================== |
Parameters: |
* eax = 69 - number of the function |
* ebx = 0 - number subfunction |
* ecx = pointer |
Format of data area: |
* +0: dword: N = size of buffer (not including this header) |
* +4: dword: occupied in buffer |
* +8: N*byte: buffer |
Returned value: |
* function does not return value |
Remarks: |
* If a field of a size negatively, the buffer is considered disabled and |
at arrival of the new message the system will wait. |
For synchronization frame all operation with the buffer by operations |
of the locking/unlocking |
neg [bufsize] |
* Data in the buffer are treated as the array of units of a variable |
length - messages. The format of the message is indicated in |
the common description. |
|
====================================================================== |
====================== Function 69, subfunction 1 ==================== |
=========== Get a status of the registers debugged thread. =========== |
====================================================================== |
Parameters: |
* eax = 69 - number of the function |
* ebx = 1 - number subfunction |
* ecx = thread identifier |
* edx = length of structure of a context, should be 0x28=40 bytes |
Returned value: |
* function does not return value |
Format of structure of a context: (FPU is not supported yet) |
* +0: dword: eip |
* +4: dword: eflags |
* +8: dword: eax |
* +12 = +0xC: dword: ecx |
* +16 = +0x10: dword: edx |
* +20 = +0x14: dword: ebx |
* +24 = +0x18: dword: esp |
* +28 = +0x1C: dword: ebp |
* +32 = +0x20: dword: esi |
* +36 = +0x24: dword: edi |
Remarks: |
* If thread fulfils the code of a ring-0, the status of the registers |
of a ring-3 comes back. |
* Process should be loaded for of debugging (as is indicated in |
the common description). |
|
====================================================================== |
====================== Function 69, subfunction 2 ====================== |
======== Install a status of the registers debugged thread. ======== |
====================================================================== |
Parameters: |
* eax = 69 - number of the function |
* ebx = 2 - number subfunction |
* ecx = thread identifier |
* edx = length of structure of a context, should be 0x28=40 bytes |
Returned value: |
* function does not return value |
Format of structure of a context is indicated in the description subfunction 1. |
Remarks: |
* If thread fulfils the code of a 0-ring, the status of the registers |
of a 3-ring is installed. |
* Process should be loaded for of debugging (as is indicated in |
the common description). |
|
====================================================================== |
== Function 69, subfunction 3 - disabled from the debugged process. == |
====================================================================== |
Parameters: |
* eax = 69 - number of the function |
* ebx = 3 - number subfunction |
* ecx = identifier |
Returned value: |
* function does not return value |
Remarks: |
* If the process was paused, it restores execution. |
|
====================================================================== |
======== Function 69, subfunction 4 - paused debugged thread. ======== |
====================================================================== |
Parameters: |
* eax = 69 - number ïðîöåññà |
* ebx = 4 - number subfunction |
* ecx = identifier |
Returned value: |
* function does not return value |
Remarks: |
* Process should be loaded for of debugging (as is indicated in |
the common description). |
|
====================================================================== |
====================== Function 69, subfunction 5 ==================== |
================ Restored execution debugged thread. ================= |
====================================================================== |
Parameters: |
* eax = 69 - number of the function |
* ebx = 5 - number subfunction |
* ecx = identifier |
Returned value: |
* function does not return value |
Remarks: |
* Process should be loaded for of debugging (as is indicated in |
the common description). |
|
====================================================================== |
====================== Function 69, subfunction 6 ==================== |
============= Read from memory of the debugged process. ============== |
====================================================================== |
Parameters: |
* eax = 69 - number of the function |
* ebx = 6 - number subfunction |
* ecx = identifier |
* edx = how many bytes to read |
* esi = memory address of the debugged process |
* edi = pointer on buffer for data |
Returned value: |
* eax = -1 error (incorrect PID or buffer) |
* differently eax = the number read bytes |
(is possible, 0, if in esi the too large value) |
Remarks: |
* Process should be loaded for of debugging (as is indicated in |
the common description). |
|
====================================================================== |
Function 69, subfunction 7 - write in memory of the debugged process. |
====================================================================== |
Parameters: |
* eax = 69 - number of the function |
* ebx = 7 - number subfunction |
* ecx = identifier |
* edx = how many bytes to write |
* esi = memory address of the debugged process |
* edi = pointer on data |
Returned value: |
* eax = -1 error (incorrect PID or buffer) |
* differently eax = the number written bytes |
(is possible, 0, if in esi the too large value) |
Remarks: |
* Process should be loaded for of debugging (as is indicated in |
the common description). |
|
====================================================================== |
======= Function 69, subfunction 8 - complete debugged thread. ======= |
====================================================================== |
Parameters: |
* eax = 69 - number of the function |
* ebx = 8 - number subfunction |
* ecx = identifier |
Returned value: |
* function does not return value |
Remarks: |
* Process should be loaded for of debugging (as is indicated in |
the common description). |
* Function is similar subfunction 2 functions 18 with two differences: |
the execution of the first remark is required and is accepted PID, |
instead of number of the slot. |
|
====================================================================== |
====================== Function 69, subfunction 9 ==================== |
=============== Place/remove the hardware point break. =============== |
====================================================================== |
Parameters: |
* eax = 69 - number of the function |
* ebx = 9 - number subfunction |
* ecx = thread identifier |
* dl = index of breakpoint, from 0 up to 3 inclusively |
* dh = flags: |
* if high bit is reset - install breakpoint: |
* bits 0-1 - condition: |
* 00 = breakpoint on execution |
* 01 = breakpoint on writing |
* 11 = breakpoint on reading/writing |
* bits 2-3 - length; for breakpoints on fulfilment should be 00, |
otherwise one of |
* 00 = bytes |
* 01 = word |
* 11 = double word |
* esi = address of breakpoint; should be aligned according to length |
(i.e. should be even for of breakpoints on a word, is multiple 4 for |
of a double word) |
* if high bit is installed - reset breakpoint |
Returned value: |
* eax = 0 - successfully |
* eax = 1 - error in the input data |
* eax = 2 - (reserved, never comes back in current realization) |
with this index global breakpoint already is installed |
Remarks: |
* Process should be loaded for of debugging (as is indicated in |
the common description). |
* Hardware breakpoints are realized through the DRx-register of the |
processor, from here all limitations. |
* Function can reinstall the breakpoint, earlier installed to it |
(in any way not informing about it). |
Carry on the list of the installed breakpoints in the debugger. |
* Operation of breakpoint consists in generation of debug exception #DB, |
which the system informs to the debugger. |
* Breakpoint on writing and reading/writing works after execution of |
the instruction, which has called it. |
|
====================================================================== |
== Function 70 - work with a file system with support of long names. = |
====================================================================== |
Parameters: |
* eax = 70 |
* ebx = pointer on information structure |
Returned value: |
* eax = 0 - successfully; differently error code of a file system |
* depending on subfunction the value and in other registers can come back |
Common format of information structure: |
* +0: dword: number subfunction |
* +4: dword: offset in the file |
* +8: dword: high dword of offset (should be 0) or field of flags |
* +12 = +0xC: dword: size |
* +16 = +0x10: dword: pointer on data |
* +20 = +0x14: n db: ASCIIZ-string with a filename |
or |
* +20 = +0x14: db 0 |
* +21 = +0x15: dd pointer on ASCIIZ-string with a filename |
Specifications - in documentation on appropriate subfunction. |
Filename is insensitive to the register of characters. Russian characters should be written in the coding cp866 (DOS). |
Ôîðìàò èìåíè ôàéëà: |
/base/number/dir1/dir2/.../dirn/file, |
where /base/number Identifies the device, on which the file is searched: |
one of |
* /RD/1 = /RAMDISK/1 for access to ramdisk |
* /FD/1 = /FLOPPYDISK/1 for access to the first floppy-drive, |
/FD/2 = /FLOPPYDISK/2 for access to the second floppy-drive |
* /HD0/x, /HD1/x, /HD2/x, /HD3/x for access accordingly |
to hard disks on IDE0 (Primary Master), IDE1 (Primary Slave), |
IDE2 (Secondary Master), IDE3 (Secondary Slave); |
x - number of partition on selected hard disk, varies from 1 up to 255 |
(on each of hard disks partitions starts with 1) |
* /CD0/1, /CD1/1, /CD2/1, /CD3/1 for access accordingly |
to CD on IDE0 (Primary Master), IDE1 (Primary Slave), |
IDE2 (Secondary Master), IDE3 (Secondary Slace) |
Examples: |
* '/rd/1/kernel.asm',0 |
* '/HD0/1/kernel.asm',0 |
* '/hd0/2/menuet/pics/tanzania.bmp',0 |
* '/hd0/1/Program files/NameOfProgram/SomeFile.SomeExtension',0 |
Accessible subfunctions: |
* subfunction 0 - read file |
* subfunction 1 - read folder |
* subfunction 2 - create/rewrite file |
* subfunction 5 - get file/directory attributes structure |
* subfunction 6 - set file/directory attributes structure |
* subfunction 7 - start application |
|
====================================================================== |
= Function 70, subfunction 0 - read file with support of long names. = |
====================================================================== |
Parameters: |
* eax = 70 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 0 = number subfunction |
* +4: dword: position in the file (in bytes) |
* +8: dword: 0 (reserved for high dword of a position) |
* +12 = +0xC: dword: how many bytes to read |
* +16 = +0x10: dword: pointer on buffer, where the data will be written |
* +20 = +0x14: ASCIIZ-name of the file, the rules of creation of names |
are indicated in the common description |
or |
* +20 = +0x14: db 0 |
* +21 = +0x15: dd pointer on ASCIIZ-string with a filename |
Returned value: |
* eax = 0 - successfully, differently error code of a file system |
* ebx = number read bytes or |
-1=0xffffffff, if the file is not retrieved |
Remarks: |
* If the file was terminated earlier, than last requested block was read, |
the function will read, how many can, then will return eax=6 (EOF). |
* Function does not allow to read folders |
(will return eax=10, access denied). |
|
======================================================================== |
= Function 70, subfunction 1 - read folder with support of long names. = |
======================================================================== |
Parameters: |
* eax = 70 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 1 = number subfunction |
* +4: dword: index of the initial block (beginning from 0) |
* +8: dword: field of flags: |
* bit 0 (mask 1): in what format to return names, |
0=ANSI, 1=UNICODE |
* Other bits are reserved and should be installed in 0 |
for of the future compatibility |
* +12 = +0xC: dword: how many blocks to read |
* +16 = +0x10: dword: pointer on buffer, where the data will be written, |
size of buffer should be not less than 32 + [+12] *560 bytes |
* +20 = +0x14: ASCIIZ-name of the file, the rules of creation of names |
are indicated in the common description |
or |
* +20 = +0x14: db 0 |
* +21 = +0x15: dd pointer on ASCIIZ-string with a filename |
Returned value: |
* eax = 0 - successfully, differently error code of a file system |
* ebx = number of files, the information about which was written |
in the buffer, |
or -1=0xffffffff, if the folder is not retrieved |
Structure of the buffer: |
* +0: 32*byte: header |
* +32 = +0x20: n1*byte: block with information on file 1 |
* +32+n1: n2*byte: block with information on file 2 2 |
* ... |
Structure of header: |
* +0: dword: version of structure (current version = 1) |
* +4: dword: amount of the placed blocks; it is no more, |
than +12 information structures are requested in a field; |
can be less, if in a folder the files (same, as in ebx) were terminated |
* +8: dword: total number of files in a folder |
* +12 = +0xC: 20*byte: reserved (zero) |
Structure of data block of input of directory (DBID): |
* +0: dword: file attributes: |
* áèò 0 (ìàñêà 1): file only for reading |
* áèò 1 (ìàñêà 2): file is hidden |
* áèò 2 (ìàñêà 4): file is system |
* áèò 3 (ìàñêà 8): it not file, it is volume label |
(on given partition meets no more once and only in a root folder) |
* áèò 4 (ìàñêà 0x10): It is a folder |
* áèò 5 (ìàñêà 0x20): file was not archived - many programs of archiving |
have an option, on which the files with installed this bit are archived |
only, then this bit is dumped(reset) is it can be useful for of automatic |
creation of backup-archives, for at recording bit is usually installed |
* +4: byte: type of data of a name: |
(coincides with bit 0 flags of information structure) |
* 0 = ASCII = 1- byte performance of each character |
* 1 = UNICODE = 2-byte performance of each character |
* +5: 3*byte: reserved (zero) |
* +8: 4*byte: time of creation of file |
* +12 = +0xC: 4*byte: date of creation of file |
* +16 = +0x10: 4*byte: time of last access (reading or writing) |
* +20 = +0x14: 4*byte: date of last access |
* +24 = +0x18: 4*byte: time of a last modification |
* +28 = +0x1C: 4*byte: date of a last modification |
* +32 = +0x20: qword: file size in bytes (up to 16777216 Tbytes) |
* +40 = +0x28: name |
* for of the format ASCII: maximum length of a name 263 characters |
(263 bytes), bytes after a name matters 0 |
* for of the format UNICODE: maximum length of a name 259 characters |
(518 bytes), two bytes after a name matter 0 |
Format of time: |
* +0: byte: seconds |
* +1: byte: minutes |
* +2: byte: hours |
* +3: byte: reserved (0) |
* For example, 23.59.59 is written as (in hex) 3B 3B 17 00 |
Format of date: |
* +0: byte: day |
* +1: byte: month |
* +2: word: year |
* For example, 25.11.1979 is written as (in hex) 19 0B BB 07 |
Remarks: |
* If in DBID there is a name in ASCII, length makes 304 bytes, |
if in UNICODE - 560 bytes. Value of length aligned on whole |
multiple 16 bytes (for of acceleration of processing in cache-memory CPU). |
* First character after a name zero (ASCIIZ-string). |
The further data contain garbage. |
* If the files in a folder were terminated earlier, than the requested |
amount was read, the function will read, how many can, |
then will return eax=6 (EOF). |
* Any folder on the disk, except for root, contains two special |
inputs(entrances) "." And "..", identifying accordingly folder |
and parent folder. |
* Function allows also to read virtual folders "/", "/rd", "/fd", |
"/hd [n] ", thus the attributes subfolders rely equal 0x10, and the times |
and dates are unset. An alternate way of obtaining of the information |
about the equipment - subfunction 11 functions 18 |
|
====================================================================== |
====================== Function 70, subfunction 2 ==================== |
========== Create/rewrite file with support of long names. =========== |
====================================================================== |
Parameters: |
* eax = 70 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 2 = number subfunction |
* +4: dword: 0 (reserved) |
* +8: dword: 0 (reserved) |
* +12 = +0xC: dword: how many bytes to write |
* +16 = +0x10: dword: pointer on data |
* +20 = +0x14: ASCIIZ-name of the file, the rules of creation of names |
are indicated in the common description |
or |
* +20 = +0x14: db 0 |
* +21 = +0x15: dd pointer on ASCIIZ-string with a filename |
Returned value: |
* eax = 0 - successfully, differently error code of a file system |
* ebx = number written bytes (is possible, 0) |
Remarks: |
* If the file with such name did not exist, it creates; if existed, |
is rewritten. |
* If it is not enough of free space on of the disk, the function will write, |
how many can, then will return an error code 8. |
|
====================================================================== |
= Function 70, subfunction 5 - get file/directory attributes structure. |
====================================================================== |
Parameters: |
* eax = 70 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 5 = number subfunction |
* +4: dword: 0 (reserved) |
* +8: dword: 0 (reserved) |
* +12 = +0xC: dword: 0 (reserved) |
* +16 = +0x10: dword: pointer on buffer, where data will be written (40 bytes) |
* +20 = +0x14: ASCIIZ-name of the file, the rules of creation of names |
are indicated in the common description |
or |
* +20 = +0x14: db 0 |
* +21 = +0x15: dd pointer on ASCIIZ-string with a filename |
Returned value: |
* eax = 0 - successfully, differently error code of a file system |
* ebx fail |
Information on the file comes back in the format DBID |
(data block of input of directory), indicated in the description subfunction 1, |
but without a filename (only first 40 = 0x28 bytes). |
Remarks: |
* Function does not support virtual folders such as /, /rd |
and root folders such as /rd/1. |
|
====================================================================== |
= Function 70, subfunction 6 - set file/directory attributes structure. |
====================================================================== |
Parameters: |
* eax = 70 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 6 = number subfunction |
* +4: dword: 0 (reserved) |
* +8: dword: 0 (reserved) |
* +12 = +0xC: dword: 0 (reserved) |
* +16 = +0x10: dword: pointer on buffer with attributes (32 bytes) |
* +20 = +0x14: ASCIIZ-name of the file, the rules of creation of names |
are indicated in the common description |
or |
* +20 = +0x14: db 0 |
* +21 = +0x15: dd pointer on ASCIIZ-string with a filename |
Returned value: |
* eax = 0 - successfully, differently error code of a file system |
* ebx fail |
File attributes - first 32 bytes in DBID (data block of input of directory), |
which format is indicated in the description subfunction 1 |
(that is without a name and file size). Attribute the file/folder/volume label |
(bits 3,4 in dword +0) does not vary. |
Byte +4 (format of a name) ignored. |
Remarks: |
* Function does not support virtual folders such as /, /rd |
and root folders such as /rd/1. |
|
====================================================================== |
============ Function 70, subfunction 7 - start application. ============ |
====================================================================== |
Parameters: |
* eax = 70 - number of the function |
* ebx = pointer on information structure |
Format of information structure: |
* +0: dword: 7 = number subfunction |
* +4: dword: field of flags: |
* áèò 0: to start the process as debugged |
* other bits are reserved and should be installed in 0 |
* +8: dword: 0 or pointer on ASCIIZ-string with parameters |
* +12 = +0xC: dword: 0 (reserved) |
* +16 = +0x10: dword: 0 (reserved) |
* +20 = +0x14: ASCIIZ-name of the file, the rules of creation of names |
are indicated in the common description |
or |
* +20 = +0x14: db 0 |
* +21 = +0x15: dd pointer on ASCIIZ-string with a filename |
Returned value: |
* eax > 0 - program is loaded, eax contains PID |
* eax < 0 - has taken place error, |
-eax contains an error code of a file system |
* ebx fail |
Remarks: |
* Command line should be ended by the character with the code 0 |
(ASCIIZ-strings); it are taken into account or all characters up to |
completing zero inclusively, or the first 256 characters, that are less. |
* If the process is started as debugged, it creates in the frozen status; |
for of start use subfunction 5 functions 69. |
|
====================================================================== |
=========== Function 71, subfunction 1 - set window caption ========== |
====================================================================== |
Parameters: |
* eax = 71 - function number |
* ebx = 1 - subfunction number |
* eáx = caption string address |
Returned value: |
* eax = 0 - caption changed successfully |
* eax = 1 - error occured |
Remarks: |
* String should be in ASCIIZ format. Disregarding real string length, |
no more than 255 chars will be wrawn. |
* Pass NULL in ecx to remove caption |
|
====================================================================== |
========== Function -1 - complete execution of thread/proces ========= |
====================================================================== |
Parameters: |
* eax = -1 - number of the function |
Returned value: |
* function does not return neither value, nor handle |
Remarks: |
* If the process obviously did not create streams, it has only one thread, |
which completion results in completion of the process. |
* If current thread - last in process, its completion also results |
in completion of the process. |
* This function completes current thread. Another thread |
is possible kill by call subfunction 2 functions 18. |
|
====================================================================== |
=========================== List of events =========================== |
====================================================================== |
Next event is possible get by call of one from functions 10 (to expect event), |
11 (to check up without waiting), 23 (to expect during the given time). |
These functions return only those events, which enter into a mask installed by |
the function 40. By default it is first three, that there is enough for of many |
applications of. |
Codes of events: |
* 1 = message about redraw (is reset at function call 0) |
* 2 = key on keyboard is pressed (acts, only when the window is active) |
or "hotkey" is pressed; is reset, when all keys from the buffer are read |
out by the function 2 |
* 3 = button is pressed, defined earlier by function 8(or buttons of closing, |
created implicitly by function 0 is pressed; the button of minimization is |
handled by the system and about it of the message does not come; acts, only |
when the window is active; is reset, when all buttons from the buffer are |
read out by the function 17) |
* 4 = reserved (in current implementation never comes even at unmasking |
by the function 40) |
* 5 = redraw the background of a desktop (is reset automatically after |
redraw, so if in time redraw of a background the program does not wait |
and does not check event, this event it will not remark) |
* 6 = event from the mouse (something happened - pressing a mouse button |
or moving; is reset at reading) |
* 7 = there was an event IPC (look the function 60 - Inter Process |
Communication; is reset at reading) |
* 8 = there was a network event (is reset at reading; look operation |
with the network) |
* 9 = there was a debug event (is reset at reading; look a debug subsystem) |
* 16..31 = there was an event with appropriate IRQ |
(16=IRQ0, 31=IRQ15) (is reset at reading all data IRQ) |
|
====================================================================== |
==================== Error codes of a file system ==================== |
====================================================================== |
* 0 = successfully |
* 1 = base and/or partition of the hard disk is not defined |
(subfunctions 7, 8 functions 21) |
* 2 = function is not supported for of the given file system |
(comes back in case of attempt of LBA-reading at prohibited LBA) |
* 3 = Unknown file system |
* 4 = comes back only by function rename by transmission of the strongly |
incorrect parameter and in any way does not correspond to the description |
in sources of a kernel " partition not defined at hd " |
* 5 = file is not retrieved |
* 6 = file was completed |
* 7 = pointer outside of memory of the application |
* 8 = disk is filled |
* 9 = table FAT is destroyed |
* 10 = access denied |
* 11 = error of the device |
At start of the program the following error codes are possible also: |
* 30 = 0x1E = not enough of memory |
* 31 = 0x1F = file is not application |
* 32 = 0x20 = too much processes |
|