检查BUF的内容是否为正偶数,如是正偶数,则AL=0。下面程序段正确的是( )
MOV AL,BUF JS K1 SHR AL,1 JNC K1 MOV AL,0 K1:
MOV AL,BUF AND AL,11 JNZ K2 MOV AL,0 K2:……
MOV AL,BUF TEST AL,81H JNZ K3 MOV AL,0 K3:
MOV AL,BUF JNP K4 TEST AL,80H JNZ K4 MOV AL,0 K4:
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