mirror of https://github.com/nmlgc/ReC98.git
39 lines
787 B
NASM
39 lines
787 B
NASM
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; unsigned __int32 farcoreleft(void)
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_farcoreleft proc
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@@value = dword ptr -4
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push bp
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mov bp, sp
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sub sp, 4
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push si
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push di
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mov word ptr [bp+@@value+2], 0
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mov word ptr [bp+@@value], 0
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mov dx, word ptr _heaptop@+2
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mov ax, word ptr _heaptop@
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mov cx, word ptr _brklvl@+2
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mov bx, word ptr _brklvl@
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call N_PSBP@
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mov word ptr [bp+@@value+2], dx
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mov word ptr [bp+@@value], ax
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cmp word ptr [bp+@@value+2], 0
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jb short @@ret
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ja short @@sub16
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cmp word ptr [bp+@@value], 16
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jbe short @@ret
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@@sub16:
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sub word ptr [bp+@@value], 16
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sbb word ptr [bp+@@value+2], 0
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@@ret:
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and word ptr [bp+@@value], 0FFF0h
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mov dx, word ptr [bp+@@value+2]
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mov ax, word ptr [bp+@@value]
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pop di
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pop si
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mov sp, bp
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pop bp
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ret
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_farcoreleft endp ; sp-analysis failed
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