casmlink.asm

来自「汇编&c语言code」· 汇编 代码 · 共 24 行

; Turbo Assembler    Copyright (c) 1988, 1991 By Borland International, Inc.

; CASMLINK.ASM

; From the Turbo Assembler Users Guide

        .MODEL  small
        .DATA
        EXTRN   _Flag:WORD
        .CODE
        PUBLIC  _ToggleFlag
_ToggleFlag     PROC
        cmp     [_Flag],0              ;is the flag reset?
        jz      SetFlag                ;yes, set it
        mov     [_Flag],0              ;no, reset it
        jmp     short EndToggleFlag    ;done
SetFlag:
        mov     [_Flag],1              ;set flag
EndToggleFlag:
        ret
_ToggleFlag     ENDP
        END