mirror of
https://github.com/ondra-novak/gates_of_skeldal.git
synced 2025-07-04 21:50:38 -04:00
90 lines
2.2 KiB
NASM
90 lines
2.2 KiB
NASM
.model small
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.386
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DGROUP group _DATA
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extrn _tasklist_sp:dword[]
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extrn _tasklist_low:dword[]
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extrn _tasklist_top:dword[]
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extrn _task_info:dword[]
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extrn _curtask:dword
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extrn _nexttask:dword
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extrn _taskcount:dword
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extrn __STACKLOW:dword
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extrn __STACKTOP:dword
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extrn _taskparam:dword
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extrn free_:proc
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_TEXT segment byte public 'CODE' use32
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assume CS:_TEXT
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assume DS:DGROUP
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public task_sleep_
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task_sleep_:
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mov _taskparam,eax
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pushfd
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pushad
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mov eax,_curtask
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mov esi,[_tasklist_sp]
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mov edi,[_tasklist_low]
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mov edx,[_tasklist_top]
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mov ecx,[_task_info]
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mov [esi+eax*4],esp
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mov ebx,_nexttask
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term_1: cmp eax,ebx
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mov eax,ebx
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jnz twake
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xor eax,eax
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taskloop:
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inc ebx
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cmp ebx,_taskcount
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jc tasktest
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xor ebx,ebx
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tasktest:
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cmp dword ptr [esi+ebx*4],0
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jz taskloop
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test byte ptr [ecx+ebx],2 ;test zda je task waiting
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jnz taskloop ;ano - pak ho preskoc (task 0 nesmi byt waiting)
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twake: mov _curtask,eax
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mov _nexttask,ebx
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mov esp,[esi+eax*4]
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mov ebx,[edi+eax*4]
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mov __STACKLOW,ebx
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mov ebx,[edx+eax*4]
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mov __STACKTOP,ebx
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popad
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popfd
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mov eax,_taskparam
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ret
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public task_terminating_
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task_terminating_:
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;tato funkce je volana po kazdem ukonceni ulohy
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mov eax,[_tasklist_sp]
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mov esp,[eax]
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mov ebx,[_tasklist_low]
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mov ebx,[ebx]
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mov __STACKLOW,ebx
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mov ebx,[_tasklist_top]
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mov ebx,[ebx]
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mov __STACKTOP,ebx
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mov eax,_curtask
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mov esi,[_tasklist_low]
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mov eax,[esi+4*eax]
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call free_
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mov eax,_curtask
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xor ebx,ebx
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mov esi,[_tasklist_sp]
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mov [esi+4*eax],ebx
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mov esi,[_tasklist_sp]
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mov edi,[_tasklist_low]
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mov edx,[_tasklist_top]
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mov eax,_curtask
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mov ebx,_nexttask
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jmp term_1
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_TEXT ends
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end
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