汇编逻辑运算

data segment
    x db 7fh,5 dup (?)
    y dw 55aah,4 dup (?)
data ends
code segment
    assume cs:code,ds:data
    start:
        mov ax,data
        mov ds,ax

        mov al,x
        and al,11101111b
        mov x+1,al

        mov al,x
        or al,10000000b
        mov x+2,al

        mov al,x
        xor al,00000011b
        mov x+3,al

        mov al,x
        xor al,al
        mov x+4,al

        mov al,x
        not al
        test al,10000000b
        jnz bb    ;条件转移
        mov x+5,-1
        jmp mm    ;无条件转移

    bb:
        mov x+5,1

    mm:
        mov ax,y
        and ax,0fffh
        mov y+2,ax

        mov ax,y
        or ax,000fh
        mov y+4,ax

        mov ax,y
        xor ax,00aah
        mov y+6,ax

        mov ax,y
        test ax,8000h
        jnz  cc
        mov y+8,-1
        mov ah,4ch
        int 21h

    cc:
        mov x+8,1
    
    code ends
end start