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Rev 7136 Rev 8053
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;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
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;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa      ;;
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;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa      ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 7136 $
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$Revision: 8053 $
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9
 
10
WINDOW_MOVE_AND_RESIZE_FLAGS = \
10
WINDOW_MOVE_AND_RESIZE_FLAGS = \
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  mouse.WINDOW_RESIZE_N_FLAG + \
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  mouse.WINDOW_RESIZE_N_FLAG + \
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  event_start   dd ?
19
  event_start   dd ?
20
  event_end     dd ?
20
  event_end     dd ?
21
  event_uid     dd 0
21
  event_uid     dd 0
22
endg
22
endg
23
EV_SPACE   = 512
23
EV_SPACE   = 512
24
FreeEvents = event_start-EVENT.fd    ; "виртуальный" event, используются только поля:
24
FreeEvents = event_start-EVENT.fd    ; "virtual" event, only following field used:
25
                                     ;  FreeEvents.fd=event_start и FreeEvents.bk=event_end
25
                                     ;  FreeEvents.fd=event_start and FreeEvents.bk=event_end
26
;-----------------------------------------------------------------------------
26
;-----------------------------------------------------------------------------
27
align 4
27
align 4
28
init_events:                                       ;; used from kernel.asm
28
init_events:                                       ;; used from kernel.asm
29
        stdcall kernel_alloc, EV_SPACE*sizeof.EVENT
29
        stdcall kernel_alloc, EV_SPACE*sizeof.EVENT
30
        or      eax, eax
30
        or      eax, eax
31
        jz      .fail
31
        jz      .fail
32
      ; eax - current event, ebx - previos event below
32
      ; eax - current event, ebx - previous event below
33
        mov     ecx, EV_SPACE        ; current - in allocated space
33
        mov     ecx, EV_SPACE        ; current - in allocated space
34
        mov     ebx, FreeEvents      ; previos - начало списка
34
        mov     ebx, FreeEvents      ; previous - list beginning
35
        push    ebx                  ; оно же и конец потом будет
35
        push    ebx                  ; it will be the end later
36
;--------------------------------------
36
;--------------------------------------
37
align 4
37
align 4
38
@@:
38
@@:
39
        mov     [ebx+EVENT.fd], eax
39
        mov     [ebx+EVENT.fd], eax
40
        mov     [eax+EVENT.bk], ebx
40
        mov     [eax+EVENT.bk], ebx
41
        mov     ebx, eax             ; previos <- current
41
        mov     ebx, eax             ; previos <- current
42
        add     eax, sizeof.EVENT    ; new current
42
        add     eax, sizeof.EVENT    ; new current
43
        loop    @b
43
        loop    @b
44
        pop     eax                  ; вот оно концом и стало
44
        pop     eax                  ; here it became the end
45
        mov     [ebx+EVENT.fd], eax
45
        mov     [ebx+EVENT.fd], eax
46
        mov     [eax+EVENT.bk], ebx
46
        mov     [eax+EVENT.bk], ebx
47
;--------------------------------------
47
;--------------------------------------
48
align 4
48
align 4
49
.fail:
49
.fail:
Line 55... Line 55...
55
MANUAL_DESTROY   = 0x80000000 ; bit 31
55
MANUAL_DESTROY   = 0x80000000 ; bit 31
56
;-----------------------------------------------------------------------------
56
;-----------------------------------------------------------------------------
57
align 4
57
align 4
58
create_event:                                      ;; EXPORT use
58
create_event:                                      ;; EXPORT use
59
;info:
59
;info:
60
;   Переносим EVENT из списка FreeEvents в список ObjList текущего слота
60
;   Move EVENT from the FreeEvents list to the ObjList list of the current slot;
61
;   EVENT.state устанавливаем из ecx, EVENT.code косвенно из esi (если esi<>0)
61
;   EVENT.state is set from ecx, EVENT.code indirectly from esi (if esi <> 0)
62
;param:
62
;param:
63
;   esi - event data
63
;   esi - event data
64
;   ecx - flags
64
;   ecx - flags
65
;retval:
65
;retval:
66
;   eax - event (=0 => fail)
66
;   eax - event (=0 => fail)
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        cli
74
        cli
75
;--------------------------------------
75
;--------------------------------------
76
align 4
76
align 4
77
set_event:                                         ;; INTERNAL use !!! don't use for Call
77
set_event:                                         ;; INTERNAL use !!! don't use for Call
78
;info:
78
;info:
79
;   Берем новый event из FreeEvents, заполняем его поля, как указано в ecx,edx,esi
79
;   We take a new event from FreeEvents, fill its fields from ecx, edx, esi
80
;   и устанавливаем в список, указанный в ebx.
80
;   and add it to the list, which specified in ebx.
81
;   Возвращаем сам event (в eax), и его uid (в edx)
81
;   Return event (to eax), and it's uid (to edx)
82
;param:
82
;param:
83
;   ebx - start-chain "virtual" event for entry new event Right of him
83
;   ebx - start-chain "virtual" event for entry new event Right of him
84
;   ecx - flags      (copied to EVENT.state)
84
;   ecx - flags      (copied to EVENT.state)
85
;   edx - pid        (copied to EVENT.pid)
85
;   edx - pid        (copied to EVENT.pid)
86
;   esi - event data (copied to EVENT.code indirect, =0 => skip)
86
;   esi - event data (copied to EVENT.code indirect, =0 => skip)
Line 114... Line 114...
114
        rep movsd
114
        rep movsd
115
;--------------------------------------
115
;--------------------------------------
116
align 4
116
align 4
117
RemoveEventTo:                                     ;; INTERNAL use !!! don't use for Call
117
RemoveEventTo:                                     ;; INTERNAL use !!! don't use for Call
118
;param:
118
;param:
119
;   eax - указатель на event, КОТОРЫЙ вставляем
119
;   eax - pointer to event, WHICH we will insert
120
;   ebx - указатель на event, ПОСЛЕ которого вставляем
120
;   ebx - pointer to event, AFTER which we will insert
121
;scratched: ebx,ecx
121
;scratched: ebx,ecx
122
        mov     ecx, eax             ; ecx=eax=Self,      ebx=NewLeft
122
        mov     ecx, eax             ; ecx=eax=Self,      ebx=NewLeft
123
        xchg    ecx, [ebx+EVENT.fd]  ; NewLeft.fd=Self,   ecx=NewRight
123
        xchg    ecx, [ebx+EVENT.fd]  ; NewLeft.fd=Self,   ecx=NewRight
124
        cmp     eax, ecx             ; стоп, себе думаю...
124
        cmp     eax, ecx             ; stop, I think...
125
        je      .break               ; - а не дурак ли я?
125
        je      .break               ; - am I not a fool?
126
        mov     [ecx+EVENT.bk], eax  ; NewRight.bk=Self
126
        mov     [ecx+EVENT.bk], eax  ; NewRight.bk=Self
127
        xchg    ebx, [eax+EVENT.bk]  ; Self.bk=NewLeft,   ebx=OldLeft
127
        xchg    ebx, [eax+EVENT.bk]  ; Self.bk=NewLeft,   ebx=OldLeft
128
        xchg    ecx, [eax+EVENT.fd]  ; Self.fd=NewRight,  ecx=OldRight
128
        xchg    ecx, [eax+EVENT.fd]  ; Self.fd=NewRight,  ecx=OldRight
129
        mov     [ebx+EVENT.fd], ecx  ; OldLeft.fd=OldRight
129
        mov     [ebx+EVENT.fd], ecx  ; OldLeft.fd=OldRight
130
        mov     [ecx+EVENT.bk], ebx  ; OldRight.bk=OldLeft
130
        mov     [ecx+EVENT.bk], ebx  ; OldRight.bk=OldLeft
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141
        mov     ebx, eax
141
        mov     ebx, eax
142
        mov     eax, [ebx+EVENT.pid]
142
        mov     eax, [ebx+EVENT.pid]
143
        push    edi
143
        push    edi
144
;--------------------------------------
144
;--------------------------------------
145
align 4
145
align 4
146
.small: ; криво как-то...
146
.small: ; somehow ugly...
147
        pop     edi
147
        pop     edi
148
        pushfd
148
        pushfd
149
        cli
149
        cli
150
        call    pid_to_slot ; saved all registers (eax - retval)
150
        call    pid_to_slot ; saved all registers (eax - retval)
151
        shl     eax, 8
151
        shl     eax, 8
152
        jz      RemoveEventTo.break ; POPF+RET
152
        jz      RemoveEventTo.break ; POPF+RET
153
        jmp     edi ; штатный возврат
153
        jmp     edi ; normal return
154
;-----------------------------------------------------------------------------
154
;-----------------------------------------------------------------------------
155
align 4
155
align 4
156
raise_event:                                       ;; EXPORT use
156
raise_event:                                       ;; EXPORT use
157
;info:
157
;info:
158
;   Устанавливаем данные EVENT.code
158
;   Setting up EVENT.code data
159
;   Если там флаг EVENT_SIGNALED уже активен - больше ничего
159
;   If is has flag EVENT_SIGNALED activated - nothing else
160
;   Иначе: этот флаг взводится, за исключением случая наличия флага EVENT_WATCHED в edx
160
;   Otherwise: activate this flag, except when the EVENT_WATCHED flag is present in edx
161
;   В этом случае EVENT_SIGNALED взводится лишь при наличие EVENT_WATCHED в самом событии
161
;   In this case EVENT_SIGNALED will activated only if EVENT_WATCHED presents in the event itself
162
;param:
162
;param:
163
;   eax - event
163
;   eax - event
164
;   ebx - uid (for Dummy testing)
164
;   ebx - uid (for Dummy testing)
165
;   edx - flags
165
;   edx - flags
166
;   esi - event data (=0 => skip)
166
;   esi - event data (=0 => skip)
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204
        jmp     RemoveEventTo
204
        jmp     RemoveEventTo
205
;-----------------------------------------------------------------------------
205
;-----------------------------------------------------------------------------
206
align 4
206
align 4
207
send_event:                                        ;; EXPORT use
207
send_event:                                        ;; EXPORT use
208
;info:
208
;info:
209
;   Создает новый EVENT (вытаскивает из списка FreeEvents) в списке EventList
209
;   Creates a new EVENT (pulls from the FreeEvents list) in the EventList list
210
;   целевого слота (eax=pid), с данными из esi косвенно, и state=EVENT_SIGNALED
210
;   of target slot (eax=pid), with data from esi indirectly, and state=EVENT_SIGNALED
211
;param:
211
;param:
212
;   eax - slots pid, to sending new event
212
;   eax - slots pid, to sending new event
213
;   esi - pointer to sending data (in code field of new event)
213
;   esi - pointer to sending data (in code field of new event)
214
;retval:
214
;retval:
215
;   eax - event (=0 => fail)
215
;   eax - event (=0 => fail)
Line 250... Line 250...
250
        or      ebx, -1; infinite timeout
250
        or      ebx, -1; infinite timeout
251
;--------------------------------------
251
;--------------------------------------
252
align 4
252
align 4
253
Wait_events_ex:
253
Wait_events_ex:
254
;info:
254
;info:
255
;   Ожидание "абстрактного" события через перевод слота в 5-ю позицию.
255
;   Waiting for an "abstract" event by moving the slot to the 5th position.
256
;   Абстрактность заключена в том, что факт события определяется функцией APPDATA.wait_test,
256
;   Abstractness lies in the fact, that the fact of an event is determined by the APPDATA.wait_test function,
257
;   которая задается клиентом и может быть фактически любой.
257
;   which is set by the client and can be actually anything.
258
;   Это позволяет shed-у надежно определить факт события, и не совершать "холостых" переключений,
258
;   This allows the shed to reliably determine the fact of the event, and not make "idle" switches,
259
;   предназначенных для разборок типа "свой/чужой" внутри задачи.
259
;   intended for showdowns like "friend / foe" within the problem.
260
;param:
260
;param:
261
;   edx - wait_test, клиентская ф-я тестирования (адрес кода)
261
;   edx - wait_test, client testing function (code address)
262
;   ecx - wait_param, дополнительный параметр, возможно необходимый для [wait_test]
262
;   ecx - wait_param, additional parameter, possibly needed for [wait_test]
263
;   ebx - wait_timeout
263
;   ebx - wait_timeout
264
;retval:
264
;retval:
265
;   eax - результат вызова [wait_test] (=0 => timeout)
265
;   eax - call result [wait_test] (=0 => timeout)
266
;scratched: esi
266
;scratched: esi
267
        mov     esi, [current_slot]
267
        mov     esi, [current_slot]
268
        mov     [esi+APPDATA.wait_param], ecx
268
        mov     [esi+APPDATA.wait_param], ecx
269
        pushad
269
        pushad
270
        mov     ebx, esi;пока это вопрос, чего куды сувать..........
270
        mov     ebx, esi  ;now this is a question, what where to put..........
271
        pushfd  ; это следствие общей концепции: пусть ф-я тестирования имеет
271
        pushfd  ; this is a consequence of the general concept: let the test function have
272
        cli     ; право рассчитывать на закрытые прерывания, как при вызове из shed
272
        cli     ; the right to hope to disable interrupts, as when called from shed
273
        call    edx
273
        call    edx
274
        popfd
274
        popfd
275
        mov     [esp+28], eax
275
        mov     [esp+28], eax
276
        popad
276
        popad
277
        or      eax, eax
277
        or      eax, eax
Line 290... Line 290...
290
        ret
290
        ret
291
;-----------------------------------------------------------------------------
291
;-----------------------------------------------------------------------------
292
align 4
292
align 4
293
wait_event:                                        ;; EXPORT use
293
wait_event:                                        ;; EXPORT use
294
;info:
294
;info:
295
;   Ожидание флага EVENT_SIGNALED в совершенно конкретном Event
295
;   Waiting for the EVENT_SIGNALED flag in a very specific Event
296
;   (устанавливаемого, надо полагать, через raise_event)
296
;   (set, presumably, via raise_event)
297
;   При активном флаге MANUAL_RESET - больше ничего
297
;   When the MANUAL_RESET flag is active, nothing else
298
;   Иначе: флаги EVENT_SIGNALED и EVENT_WATCHED у полученного события сбрасываются,
298
;   Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,
299
;   и, при активном MANUAL_DESTROY - перемещается в список ObjList текущего слота,
299
;   and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,
300
;   а при не активном - уничтожается штатно (destroy_event.internal)
300
;   and if not active, it is destroyed normally (destroy_event.internal)
301
;param:
301
;param:
302
;   eax - event
302
;   eax - event
303
;   ebx - uid (for Dummy testing)
303
;   ebx - uid (for Dummy testing)
304
;scratched: ecx,edx,esi
304
;scratched: ecx,edx,esi
305
        call    DummyTest
305
        call    DummyTest
Line 326... Line 326...
326
        ret
326
        ret
327
;-----------------------------------------------------------------------------
327
;-----------------------------------------------------------------------------
328
align 4
328
align 4
329
get_event_ex:                                      ;; f68:14
329
get_event_ex:                                      ;; f68:14
330
;info:
330
;info:
331
;   Ожидание любого события в очереди EventList текущего слота
331
;   Waiting for any event in the EventList of the current slot
332
;   Данные события code - копируются в память приложения (косвенно по edi)
332
;   Code event data - copied to application memory (indirectly by edi)
333
;   При активном флаге MANUAL_RESET - больше ничего
333
;   When the MANUAL_RESET flag is active, nothing else
334
;   Иначе: флаги EVENT_SIGNALED и EVENT_WATCHED у полученного события сбрасываются,
334
;   Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,
335
;   и, при активном MANUAL_DESTROY - перемещается в список ObjList текущего слота,
335
;   and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,
336
;   а при не активном - уничтожается штатно (destroy_event.internal)
336
;   and if not active, it is destroyed normally (destroy_event.internal)
337
;param:
337
;param:
338
;   edi - адрес в коде приложения для копирования данных из EVENT.code
338
;   edi - address in the application code to copy data from EVENT.code
339
;retval:
339
;retval:
340
;   eax - собственно EVENT (будем называть это его хэндлом)
340
;   eax - EVENT itself (we will call it a handle)
341
;scratched: ebx,ecx,edx,esi,edi
341
;scratched: ebx,ecx,edx,esi,edi
342
        mov     edx, get_event_queue ; wait_test
342
        mov     edx, get_event_queue ; wait_test
343
        call    Wait_events          ; timeout ignored
343
        call    Wait_events          ; timeout ignored
344
        lea     esi, [eax+EVENT.code]
344
        lea     esi, [eax+EVENT.code]
345
        mov     ecx, (sizeof.EVENT-EVENT.code)/4
345
        mov     ecx, (sizeof.EVENT-EVENT.code)/4
Line 361... Line 361...
361
        jmp     RemoveEventTo
361
        jmp     RemoveEventTo
362
;-----------------------------------------------------------------------------
362
;-----------------------------------------------------------------------------
363
align 4
363
align 4
364
destroy_event:                                     ;; EXPORT use
364
destroy_event:                                     ;; EXPORT use
365
;info:
365
;info:
366
;   Переносим EVENT в список FreeEvents, чистим поля magic,destroy,pid,id
366
;   Move EVENT to the FreeEvents list, clear the magic, destroy, pid, id fields
367
;param:
367
;param:
368
;   eax - event
368
;   eax - event
369
;   ebx - uid (for Dummy testing)
369
;   ebx - uid (for Dummy testing)
370
;retval:
370
;retval:
371
;   eax - адрес объекта EVENT (=0 => fail)
371
;   eax - address of EVENT object (=0 => fail)
372
;scratched: ebx,ecx
372
;scratched: ebx,ecx
373
        call    DummyTest ; not returned for fail !!!
373
        call    DummyTest ; not returned for fail !!!
374
;--------------------------------------
374
;--------------------------------------
375
align 4
375
align 4
376
.internal:
376
.internal:
Line 385... Line 385...
385
        jmp     RemoveEventTo
385
        jmp     RemoveEventTo
386
;-----------------------------------------------------------------------------
386
;-----------------------------------------------------------------------------
387
align 4
387
align 4
388
get_event_queue:
388
get_event_queue:
389
;info:
389
;info:
390
;   клиентская ф-я тестирования для get_event_ex
390
;   client testing function for get_event_ex
391
;warning:
391
;warning:
392
;  -don't use [TASK_BASE],[current_slot],[CURRENT_TASK] - it is not for your slot
392
;  -don't use [TASK_BASE],[current_slot],[CURRENT_TASK] - it is not for your slot
393
;  -may be assumed, that interrupt are disabled
393
;  -may be assumed, that interrupt are disabled
394
;  -it is not restriction for scratched registers
394
;  -it is not restriction for scratched registers
395
;param:
395
;param:
396
;   ebx - адрес APPDATA слота тестирования
396
;   ebx - APPDATA address of testing slot
397
;retval:
397
;retval:
398
;   eax - адрес объекта EVENT (=0 => fail)
398
;   eax - address of EVENT object (=0 => fail)
399
        add     ebx, APP_EV_OFFSET
399
        add     ebx, APP_EV_OFFSET
400
        mov     eax, [ebx+APPOBJ.bk] ; выбираем с конца, по принципу FIFO
400
        mov     eax, [ebx+APPOBJ.bk] ; we choose from the end, according to the FIFO principle
401
        cmp     eax, ebx ; empty ???
401
        cmp     eax, ebx ; empty ???
402
        je      get_event_alone.ret0
402
        je      get_event_alone.ret0
403
;--------------------------------------
403
;--------------------------------------
404
align 4
404
align 4
405
.ret:
405
.ret:
406
        ret
406
        ret
407
;-----------------------------------------------------------------------------
407
;-----------------------------------------------------------------------------
408
align 4
408
align 4
409
get_event_alone:
409
get_event_alone:
410
;info:
410
;info:
411
;   клиентская ф-я тестирования для wait_event
411
;   client testing function for wait_event
412
;warning:
412
;warning:
413
;  -don't use [TASK_BASE],[current_slot],[CURRENT_TASK] - it is not for your slot
413
;  -don't use [TASK_BASE],[current_slot],[CURRENT_TASK] - it is not for your slot
414
;  -may be assumed, that interrupt are disabled
414
;  -may be assumed, that interrupt are disabled
415
;  -it is not restriction for scratched registers
415
;  -it is not restriction for scratched registers
416
;param:
416
;param:
417
;   ebx - адрес APPDATA слота тестирования
417
;   ebx - APPDATA address of testing slot
418
;retval:
418
;retval:
419
;   eax - адрес объекта EVENT (=0 => fail)
419
;   eax - address of EVENT object (=0 => fail)
420
        mov     eax, [ebx+APPDATA.wait_param]
420
        mov     eax, [ebx+APPDATA.wait_param]
421
        test    byte[eax+EVENT.state+3], EVENT_SIGNALED shr 24
421
        test    byte[eax+EVENT.state+3], EVENT_SIGNALED shr 24
422
        jnz     .ret
422
        jnz     .ret
423
        or      byte[eax+EVENT.state+3], EVENT_WATCHED shr 24
423
        or      byte[eax+EVENT.state+3], EVENT_WATCHED shr 24
424
;--------------------------------------
424
;--------------------------------------
Line 462... Line 462...
462
        mov     [KEY_BUFF+eax], byte 0
462
        mov     [KEY_BUFF+eax], byte 0
463
        sub     eax, 120+2
463
        sub     eax, 120+2
464
;--------------------------------------
464
;--------------------------------------
465
align 4
465
align 4
466
.result:
466
.result:
467
        setae   byte[esp+32+4] ;считаем, что исходно: dword[esp+32+4]==72
467
        setae   byte[esp+32+4] ;we consider that initially was: dword[esp+32+4]==72
468
;--------------------------------------
468
;--------------------------------------
469
align 4
469
align 4
470
.retf:
470
.retf:
471
        popfd
471
        popfd
472
;--------------------------------------
472
;--------------------------------------
Line 474... Line 474...
474
.ret:
474
.ret:
475
        ret
475
        ret
476
;-----------------------------------------------------------------------------
476
;-----------------------------------------------------------------------------
477
align 4
477
align 4
478
sys_getevent:                                      ;; f11
478
sys_getevent:                                      ;; f11
479
        mov     ebx, [current_slot];пока это вопрос, чего куды сувать..........
479
        mov     ebx, [current_slot]  ;now this is a question, what where to put......
480
        pushfd  ; это следствие общей концепции: пусть ф-я тестирования имеет
480
        pushfd  ; this is a consequence of the general concept: let the test function have
481
        cli     ; право рассчитывать на закрытые прерывания, как при вызове из shed
481
        cli     ; the right to hope to disable interrupts, as when called from shed
482
        call    get_event_for_app
482
        call    get_event_for_app
483
        popfd
483
        popfd
484
        mov     [esp+32], eax
484
        mov     [esp+32], eax
485
        ret
485
        ret
486
;-----------------------------------------------------------------------------
486
;-----------------------------------------------------------------------------
Line 498... Line 498...
498
        ret
498
        ret
499
;-----------------------------------------------------------------------------
499
;-----------------------------------------------------------------------------
500
align 4
500
align 4
501
get_event_for_app:                                 ;; used from f10,f11,f23
501
get_event_for_app:                                 ;; used from f10,f11,f23
502
;info:
502
;info:
503
;   клиентская ф-я тестирования для приложений (f10,f23)
503
;   client testing function for applications (f10,f23)
504
;warning:
504
;warning:
505
;  -don't use [TASK_BASE],[current_slot],[CURRENT_TASK] - it is not for your slot
505
;  -don't use [TASK_BASE],[current_slot],[CURRENT_TASK] - it is not for your slot
506
;  -may be assumed, that interrupt are disabled
506
;  -may be assumed, that interrupt are disabled
507
;  -it is not restriction for scratched registers
507
;  -it is not restriction for scratched registers
508
;param:
508
;param:
509
;   ebx - адрес APPDATA слота тестирования
509
;   ebx - APPDATA address of testing slot
510
;retval:
510
;retval:
511
;   eax - номер события (=0 => no events)
511
;   eax - event number (=0 => no events)
512
        movzx   edi, bh               ; bh  is assumed as [CURRENT_TASK]
512
        movzx   edi, bh               ; bh  is assumed as [CURRENT_TASK]
513
        shl     edi, 5
513
        shl     edi, 5
514
        add     edi, CURRENT_TASK     ; edi is assumed as [TASK_BASE]
514
        add     edi, CURRENT_TASK     ; edi is assumed as [TASK_BASE]
515
        mov     ecx, [edi+TASKDATA.event_mask]
515
        mov     ecx, [edi+TASKDATA.event_mask]
516
        and     ecx, 0x7FFFFFFF
516
        and     ecx, 0x7FFFFFFF
517
;--------------------------------------
517
;--------------------------------------
518
align 4
518
align 4
519
.loop: ; пока не исчерпаем все биты маски
519
.loop: ; until we run out all the bits of the mask
520
        bsr     eax, ecx       ; находим ненулевой бит маски (31 -> 0)
520
        bsr     eax, ecx       ; find a non-zero bit of the mask (31 -> 0)
521
        jz      .no_events     ; исчерпали все биты маски, но ничего не нашли ???
521
        jz      .no_events     ; ran out all the bits of the mask but found nothing ???
522
        btr     ecx, eax       ; сбрасываем проверяемый бит маски
522
        btr     ecx, eax       ; clear the current checking bit of the mask
523
       ; переходим на обработчик этого (eax) бита
523
       ; go to the handler of this (eax) bit
524
        cmp     eax, 10
524
        cmp     eax, 10
525
        jae     .loop          ; eax=[10..31], ignored (event 11...32)
525
        jae     .loop          ; eax=[10..31], ignored (event 11...32)
Line 526... Line 526...
526
 
526
 
527
        cmp     eax, 3
527
        cmp     eax, 3