mirror of https://github.com/nmlgc/ReC98.git
41 lines
673 B
NASM
41 lines
673 B
NASM
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MAX_ATEXIT equ 32
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; int atexit(atexit_t func)
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public _atexit
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_atexit proc DIST
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_func = DPTR_ 2 + dPtrSize
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push bp
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mov bp, sp
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push si
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push di
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cmp _atexitcnt, 20h ; ' '
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jnz short @@_atexit_do
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mov ax, 1
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jmp short @@_atexit_ret
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; ---------------------------------------------------------------------------
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@@_atexit_do:
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mov bx, _atexitcnt
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if LDATA
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mov cl, 2
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shl bx, cl
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mov dx, word ptr [bp+_func+2]
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mov ax, word ptr [bp+_func]
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mov word ptr _atexittbl+2[bx], dx
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else
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add bx, bx
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mov ax, word ptr [bp+_func]
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endif
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mov word ptr _atexittbl[bx], ax
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inc _atexitcnt
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xor ax, ax
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@@_atexit_ret:
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pop di
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pop si
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pop bp
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ret
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_atexit endp
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