forked from KolibriOS/kolibrios
631f5b8e1e
- Added syscall_ common name for system call functions. - Fixed not logical names of system calls of functions. git-svn-id: svn://kolibrios.org@8986 a494cfbc-eb01-0410-851d-a64ba20cac60
623 lines
22 KiB
PHP
623 lines
22 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2021. All rights reserved. ;;
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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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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision$
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WINDOW_MOVE_AND_RESIZE_FLAGS = \
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mouse.WINDOW_RESIZE_N_FLAG + \
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mouse.WINDOW_RESIZE_W_FLAG + \
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mouse.WINDOW_RESIZE_S_FLAG + \
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mouse.WINDOW_RESIZE_E_FLAG + \
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mouse.WINDOW_MOVE_FLAG
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uglobal
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align 4
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event_start dd ?
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event_end dd ?
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event_uid dd 0
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endg
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EV_SPACE = 512
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FreeEvents = event_start-EVENT.fd ; "virtual" event, only following field used:
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; FreeEvents.fd=event_start and FreeEvents.bk=event_end
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;-----------------------------------------------------------------------------
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align 4
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init_events: ;; used from kernel.asm
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stdcall kernel_alloc, EV_SPACE*sizeof.EVENT
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or eax, eax
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jz .fail
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; eax - current event, ebx - previous event below
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mov ecx, EV_SPACE ; current - in allocated space
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mov ebx, FreeEvents ; previous - list beginning
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push ebx ; it will be the end later
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;--------------------------------------
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align 4
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@@:
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mov [ebx+EVENT.fd], eax
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mov [eax+EVENT.bk], ebx
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mov ebx, eax ; previos <- current
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add eax, sizeof.EVENT ; new current
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loop @b
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pop eax ; here it became the end
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mov [ebx+EVENT.fd], eax
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mov [eax+EVENT.bk], ebx
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;--------------------------------------
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align 4
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.fail:
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ret
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;-----------------------------------------------------------------------------
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EVENT_WATCHED = 0x10000000 ; bit 28
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EVENT_SIGNALED = 0x20000000 ; bit 29
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MANUAL_RESET = 0x40000000 ; bit 30
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MANUAL_DESTROY = 0x80000000 ; bit 31
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;-----------------------------------------------------------------------------
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align 4
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create_event: ;; EXPORT use
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;info:
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; Move EVENT from the FreeEvents list to the ObjList list of the current slot;
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; EVENT.state is set from ecx, EVENT.code indirectly from esi (if esi <> 0)
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;param:
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; esi - event data
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; ecx - flags
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;retval:
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; eax - event (=0 => fail)
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; edx - uid
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;scratched: ebx,ecx,esi,edi
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mov ebx, [current_slot]
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add ebx, APP_OBJ_OFFSET
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mov edx, [TASK_BASE]
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mov edx, [edx+TASKDATA.pid]
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pushfd
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cli
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;--------------------------------------
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align 4
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set_event: ;; INTERNAL use !!! don't use for Call
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;info:
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; We take a new event from FreeEvents, fill its fields from ecx, edx, esi
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; and add it to the list, which specified in ebx.
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; Return event (to eax), and it's uid (to edx)
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;param:
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; ebx - start-chain "virtual" event for entry new event Right of him
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; ecx - flags (copied to EVENT.state)
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; edx - pid (copied to EVENT.pid)
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; esi - event data (copied to EVENT.code indirect, =0 => skip)
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;retval:
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; eax - event (=0 => fail)
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; edx - uid
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;scratched: ebx,ecx,esi,edi
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mov eax, FreeEvents
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cmp eax, [eax+EVENT.fd]
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jne @f ; not empty ???
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pushad
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call init_events
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popad
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jz RemoveEventTo.break ; POPF+RET
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;--------------------------------------
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align 4
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@@:
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mov eax, [eax+EVENT.fd]
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mov [eax+EVENT.magic], 'EVNT'
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mov [eax+EVENT.destroy], destroy_event.internal
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mov [eax+EVENT.state], ecx
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mov [eax+EVENT.pid], edx
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inc [event_uid]
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mov edx, [event_uid]
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mov [eax+EVENT.id], edx
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or esi, esi
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jz RemoveEventTo
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lea edi, [eax+EVENT.code]
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mov ecx, (sizeof.EVENT -EVENT.code)/4
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cld
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rep movsd
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;--------------------------------------
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align 4
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RemoveEventTo: ;; INTERNAL use !!! don't use for Call
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;param:
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; eax - pointer to event, WHICH we will insert
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; ebx - pointer to event, AFTER which we will insert
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;scratched: ebx,ecx
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mov ecx, eax ; ecx=eax=Self, ebx=NewLeft
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xchg ecx, [ebx+EVENT.fd] ; NewLeft.fd=Self, ecx=NewRight
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cmp eax, ecx ; stop, I think...
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je .break ; - am I not a fool?
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mov [ecx+EVENT.bk], eax ; NewRight.bk=Self
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xchg ebx, [eax+EVENT.bk] ; Self.bk=NewLeft, ebx=OldLeft
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xchg ecx, [eax+EVENT.fd] ; Self.fd=NewRight, ecx=OldRight
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mov [ebx+EVENT.fd], ecx ; OldLeft.fd=OldRight
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mov [ecx+EVENT.bk], ebx ; OldRight.bk=OldLeft
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;--------------------------------------
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align 4
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.break:
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popfd
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ret
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;-----------------------------------------------------------------------------
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align 4
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NotDummyTest: ;; INTERNAL use (not returned for fail !!!)
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pop edi
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call DummyTest ; not returned for fail !!!
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mov ebx, eax
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mov eax, [ebx+EVENT.pid]
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push edi
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;--------------------------------------
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align 4
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.small: ; somehow ugly...
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pop edi
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pushfd
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cli
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call pid_to_slot ; saved all registers (eax - retval)
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shl eax, 8
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jz RemoveEventTo.break ; POPF+RET
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jmp edi ; normal return
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;-----------------------------------------------------------------------------
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align 4
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raise_event: ;; EXPORT use
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;info:
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; Setting up EVENT.code data
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; If is has flag EVENT_SIGNALED activated - nothing else
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; Otherwise: activate this flag, except when the EVENT_WATCHED flag is present in edx
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; In this case EVENT_SIGNALED will activated only if EVENT_WATCHED presents in the event itself
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;param:
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; eax - event
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; ebx - uid (for Dummy testing)
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; edx - flags
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; esi - event data (=0 => skip)
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;scratched: ebx,ecx,esi,edi
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call NotDummyTest ; not returned for fail !!!
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or esi, esi
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jz @f
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lea edi, [ebx+EVENT.code]
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mov ecx, (sizeof.EVENT -EVENT.code)/4
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cld
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rep movsd
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;--------------------------------------
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align 4
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@@:
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test byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24
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jnz RemoveEventTo.break ; POPF+RET
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bt edx, 28 ;EVENT_WATCHED
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jnc @f
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test byte[ebx+EVENT.state+3], EVENT_WATCHED shr 24
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jz RemoveEventTo.break ; POPF+RET
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;--------------------------------------
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align 4
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@@:
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or byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24
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add eax, SLOT_BASE+APP_EV_OFFSET
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xchg eax, ebx
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jmp RemoveEventTo
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;-----------------------------------------------------------------------------
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align 4
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clear_event: ;; EXPORT use
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;info:
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;
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;param:
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; eax - event
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; ebx - uid (for Dummy testing)
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;scratched: ebx,ecx
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call NotDummyTest ; not returned for fail !!!
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add eax, SLOT_BASE+APP_OBJ_OFFSET
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and byte[ebx+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24)
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xchg eax, ebx
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jmp RemoveEventTo
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;-----------------------------------------------------------------------------
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align 4
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send_event: ;; EXPORT use
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;info:
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; Creates a new EVENT (pulls from the FreeEvents list) in the EventList list
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; of target slot (eax=pid), with data from esi indirectly, and state=EVENT_SIGNALED
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;param:
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; eax - slots pid, to sending new event
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; esi - pointer to sending data (in code field of new event)
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;retval:
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; eax - event (=0 => fail)
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; edx - uid
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;warning:
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; may be used as CDECL with such prefix...
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; mov esi,[esp+8]
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; mov eax,[esp+4]
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; but not as STDCALL :(
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;scratched: ebx,ecx,esi,edi
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mov edx, eax
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call NotDummyTest.small ; not returned for fail !!!
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lea ebx, [eax+SLOT_BASE+APP_EV_OFFSET]
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mov ecx, EVENT_SIGNALED
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jmp set_event
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;-----------------------------------------------------------------------------
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align 4
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DummyTest: ;; INTERNAL use (not returned for fail !!!)
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;param:
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; eax - event
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; ebx - uid (for Dummy testing)
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cmp [eax+EVENT.magic], 'EVNT'
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jne @f
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cmp [eax+EVENT.id], ebx
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je .ret
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;--------------------------------------
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align 4
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@@:
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pop eax
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xor eax, eax
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;--------------------------------------
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align 4
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.ret:
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ret
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;-----------------------------------------------------------------------------
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align 4
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Wait_events:
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or ebx, -1; infinite timeout
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;--------------------------------------
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align 4
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Wait_events_ex:
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;info:
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; Waiting for an "abstract" event by moving the slot to the 5th position.
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; Abstractness lies in the fact, that the fact of an event is determined by the APPDATA.wait_test function,
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; which is set by the client and can be actually anything.
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; This allows the shed to reliably determine the fact of the event, and not make "idle" switches,
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; intended for showdowns like "friend / foe" within the problem.
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;param:
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; edx - wait_test, client testing function (code address)
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; ecx - wait_param, additional parameter, possibly needed for [wait_test]
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; ebx - wait_timeout
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;retval:
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; eax - call result [wait_test] (=0 => timeout)
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;scratched: esi
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mov esi, [current_slot]
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mov [esi+APPDATA.wait_param], ecx
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pushad
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mov ebx, esi ;now this is a question, what where to put..........
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pushfd ; this is a consequence of the general concept: let the test function have
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cli ; the right to hope to disable interrupts, as when called from shed
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call edx
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popfd
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mov [esp+28], eax
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popad
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or eax, eax
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jnz @f ;RET
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mov [esi+APPDATA.wait_test], edx
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mov [esi+APPDATA.wait_timeout], ebx
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mov eax, [timer_ticks]
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mov [esi+APPDATA.wait_begin], eax
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mov eax, [TASK_BASE]
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mov [eax+TASKDATA.state], TSTATE_WAITING
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call change_task
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mov eax, [esi+APPDATA.wait_param]
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;--------------------------------------
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align 4
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@@:
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ret
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;-----------------------------------------------------------------------------
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align 4
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wait_event: ;; EXPORT use
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;info:
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; Waiting for the EVENT_SIGNALED flag in a very specific Event
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; (set, presumably, via raise_event)
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; When the MANUAL_RESET flag is active, nothing else
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; Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,
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; and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,
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; and if not active, it is destroyed normally (destroy_event.internal)
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;param:
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; eax - event
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; ebx - uid (for Dummy testing)
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;scratched: ecx,edx,esi
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call DummyTest
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mov ecx, eax ; wait_param
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mov edx, get_event_alone ; wait_test
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call Wait_events ; timeout ignored
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jmp wait_finish
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;-----------------------------------------------------------------------------
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align 4
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wait_event_timeout:
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;param:
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; eax - event
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; ebx - uid (for Dummy testing)
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; ecx - timeout in timer ticks
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;retval:
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; eax - EVENT handle or 0 if timeout
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call DummyTest
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mov ebx, ecx
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mov ecx, eax ; wait_param
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mov edx, get_event_alone ; wait_test
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call Wait_events_ex
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test eax, eax
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jnz wait_finish
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ret
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;-----------------------------------------------------------------------------
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align 4
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get_event_ex: ;; syscall_some_intrenal_services:14
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;info:
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; Waiting for any event in the EventList of the current slot
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; Code event data - copied to application memory (indirectly by edi)
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; When the MANUAL_RESET flag is active, nothing else
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; Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,
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; and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,
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; and if not active, it is destroyed normally (destroy_event.internal)
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;param:
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; edi - address in the application code to copy data from EVENT.code
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;retval:
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; eax - EVENT itself (we will call it a handle)
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;scratched: ebx,ecx,edx,esi,edi
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mov edx, get_event_queue ; wait_test
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call Wait_events ; timeout ignored
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lea esi, [eax+EVENT.code]
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mov ecx, (sizeof.EVENT-EVENT.code)/4
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cld
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rep movsd
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mov byte[edi-(sizeof.EVENT-EVENT.code)+2], cl;clear priority field
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;--------------------------------------
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align 4
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wait_finish:
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test byte[eax+EVENT.state+3], MANUAL_RESET shr 24
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jnz get_event_queue.ret ; RET
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and byte[eax+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24)
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test byte[eax+EVENT.state+3], MANUAL_DESTROY shr 24
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jz destroy_event.internal
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mov ebx, [current_slot]
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add ebx, APP_OBJ_OFFSET
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pushfd
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cli
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jmp RemoveEventTo
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;-----------------------------------------------------------------------------
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align 4
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destroy_event: ;; EXPORT use
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;info:
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; Move EVENT to the FreeEvents list, clear the magic, destroy, pid, id fields
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;param:
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; eax - event
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; ebx - uid (for Dummy testing)
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;retval:
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; eax - address of EVENT object (=0 => fail)
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;scratched: ebx,ecx
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call DummyTest ; not returned for fail !!!
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;--------------------------------------
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align 4
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.internal:
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xor ecx, ecx ; clear common header
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pushfd
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cli
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mov [eax+EVENT.magic], ecx
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mov [eax+EVENT.destroy], ecx
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mov [eax+EVENT.pid], ecx
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mov [eax+EVENT.id], ecx
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mov ebx, FreeEvents
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jmp RemoveEventTo
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;-----------------------------------------------------------------------------
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align 4
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get_event_queue:
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;info:
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; client testing function for get_event_ex
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;warning:
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; -don't use [TASK_BASE],[current_slot],[current_slot_idx] - it is not for your slot
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; -may be assumed, that interrupt are disabled
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; -it is not restriction for scratched registers
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;param:
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; ebx - APPDATA address of testing slot
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;retval:
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; eax - address of EVENT object (=0 => fail)
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add ebx, APP_EV_OFFSET
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mov eax, [ebx+APPOBJ.bk] ; we choose from the end, according to the FIFO principle
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cmp eax, ebx ; empty ???
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je get_event_alone.ret0
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;--------------------------------------
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align 4
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.ret:
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ret
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;-----------------------------------------------------------------------------
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align 4
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get_event_alone:
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;info:
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; client testing function for wait_event
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;warning:
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; -don't use [TASK_BASE],[current_slot],[current_slot_idx] - it is not for your slot
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; -may be assumed, that interrupt are disabled
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; -it is not restriction for scratched registers
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;param:
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; ebx - APPDATA address of testing slot
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;retval:
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; eax - address of EVENT object (=0 => fail)
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mov eax, [ebx+APPDATA.wait_param]
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test byte[eax+EVENT.state+3], EVENT_SIGNALED shr 24
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jnz .ret
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or byte[eax+EVENT.state+3], EVENT_WATCHED shr 24
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;--------------------------------------
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align 4
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.ret0:
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xor eax, eax; NO event!!!
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;--------------------------------------
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align 4
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.ret:
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ret
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;-----------------------------------------------------------------------------
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align 4
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syscall_send_window_msg: ;; f72
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dec ebx
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jnz .ret ;subfunction==1 ?
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pushfd
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cli
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sub ecx, 2
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je .sendkey
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dec ecx
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jnz .retf
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;--------------------------------------
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align 4
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.sendbtn:
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cmp byte[BTN_COUNT], 1
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jae .result ;overflow
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inc byte[BTN_COUNT]
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shl edx, 8
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mov [BTN_BUFF], edx
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jmp .result
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;--------------------------------------
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align 4
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.sendkey:
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movzx eax, byte[KEY_COUNT]
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cmp al, 120
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jae .result ;overflow
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inc byte[KEY_COUNT]
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mov [KEY_BUFF+eax], dl
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; store empty scancode
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add eax, 120+2
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mov [KEY_BUFF+eax], byte 0
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sub eax, 120+2
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;--------------------------------------
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|
align 4
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.result:
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setae byte[esp+32+4] ;we consider that initially was: dword[esp+32+4]==72
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;--------------------------------------
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|
align 4
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.retf:
|
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popfd
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;--------------------------------------
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|
align 4
|
|
.ret:
|
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ret
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;-----------------------------------------------------------------------------
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|
align 4
|
|
syscall_checkforevent: ;; f11
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|
mov ebx, [current_slot] ;now this is a question, what where to put......
|
|
pushfd ; this is a consequence of the general concept: let the test function have
|
|
cli ; the right to hope to disable interrupts, as when called from shed
|
|
call get_event_for_app
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|
popfd
|
|
mov [esp+32], eax
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|
ret
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|
;-----------------------------------------------------------------------------
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|
align 4
|
|
syscall_waitforevent: ;; f10
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|
or ebx, -1; infinite timeout
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|
;--------------------------------------
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|
align 4
|
|
syscall_wait_event_timeout: ;; f23
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|
call unprotect_from_terminate
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|
mov edx, get_event_for_app; wait_test
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|
call Wait_events_ex ; ebx - timeout
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|
mov [esp+32], eax
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|
call protect_from_terminate
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|
ret
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|
;-----------------------------------------------------------------------------
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|
align 4
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|
get_event_for_app: ;; used from f10,f11,f23
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;info:
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; client testing function for applications (f10,f23)
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;warning:
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; -don't use [TASK_BASE],[current_slot],[current_slot_idx] - it is not for your slot
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; -may be assumed, that interrupt are disabled
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; -it is not restriction for scratched registers
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;param:
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; ebx - APPDATA address of testing slot
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;retval:
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; eax - event number (=0 => no events)
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movzx edi, bh ; bh is assumed as [current_slot_idx]
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shl edi, 5
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add edi, TASK_TABLE ; edi is assumed as [TASK_BASE]
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mov ecx, [edi+TASKDATA.event_mask]
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and ecx, 0x7FFFFFFF
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;--------------------------------------
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align 4
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.loop: ; until we run out all the bits of the mask
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bsr eax, ecx ; find a non-zero bit of the mask (31 -> 0)
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jz .no_events ; ran out all the bits of the mask but found nothing ???
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btr ecx, eax ; clear the current checking bit of the mask
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; go to the handler of this (eax) bit
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cmp eax, 10
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jae .loop ; eax=[10..31], ignored (event 11...32)
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cmp eax, 3
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je .loop ; eax=3, ignored (event 4)
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cmp eax, 4
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je .FlagAutoReset ; eax=4, retvals=eax+1 (event 5)
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cmp eax, 5
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je .mouse_check ; eax=5, retvals=eax+1 (event 6)
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ja .FlagAutoReset ; eax=[6..9], retvals=eax+1 (event 7...10)
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cmp eax, 1
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jae .BtKy ; eax=[1,2], retvals=eax+1 (event 2,3)
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;--------------------------------------
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align 4
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.WndRedraw: ; eax=0, retval WndRedraw=1
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cmp [edi-twdw+WDATA.fl_redraw], al;al==0
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jne .result
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jmp .loop
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;--------------------------------------
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align 4
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.no_events:
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xor eax, eax
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ret
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;--------------------------------------
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|
align 4
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|
.mouse_check: ; Mouse 5+1=6
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push eax
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mov eax, [TASK_BASE]
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mov eax, [eax + TASKDATA.event_mask]
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test eax, 0x80000000 ; bit 31: active/inactive filter f.40
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jz @f
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pop eax
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jmp .FlagAutoReset
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;--------------------------------------
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align 4
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|
@@:
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|
; If the window is captured and moved by the user, then no mouse events!!!
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|
mov al, [mouse.active_sys_window.action]
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and al, WINDOW_MOVE_AND_RESIZE_FLAGS
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test al, al
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|
pop eax
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|
jnz .loop
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|
;--------------------------------------
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|
align 4
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|
.FlagAutoReset: ; retvals: BgrRedraw=5, IPC=7, Stack=8, Debug=9
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btr [ebx+APPDATA.occurred_events], eax
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jnc .loop
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|
;--------------------------------------
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align 4
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.result: ; retval = eax+1
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|
inc eax
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|
ret
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|
;--------------------------------------
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|
align 4
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|
.BtKy:
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|
movzx edx, bh
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|
movzx edx, word[WIN_STACK+edx*2]
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|
je .Keys ; eax=1, retval Keys=2
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|
;--------------------------------------
|
|
align 4
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|
.Buttons: ; eax=2, retval Buttons=3
|
|
cmp byte[BTN_COUNT], 0
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|
je .loop ; empty ???
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|
cmp edx, [thread_count]
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|
jne .loop ; not Top ???
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|
mov edx, [BTN_BUFF]
|
|
shr edx, 8
|
|
cmp edx, 0xFFFF ;-ID for Minimize-Button of Form
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|
jne .result
|
|
mov [window_minimize], 1
|
|
call wakeup_osloop
|
|
dec byte[BTN_COUNT]
|
|
jmp .loop
|
|
;--------------------------------------
|
|
align 4
|
|
.Keys: ; eax==1
|
|
cmp edx, [thread_count]
|
|
jne @f ; not Top ???
|
|
cmp [KEY_COUNT], al; al==1
|
|
jae .result ; not empty ???
|
|
;--------------------------------------
|
|
align 4
|
|
@@:
|
|
mov edx, hotkey_buffer
|
|
;--------------------------------------
|
|
align 4
|
|
@@:
|
|
cmp [edx], bh ; bh - slot for testing
|
|
je .result
|
|
add edx, 8
|
|
cmp edx, hotkey_buffer+120*8
|
|
jb @b
|
|
jmp .loop
|
|
;end.
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|
;-----------------------------------------------------------------------------
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