loops - “add-sub”程序emu8086对应的流程图是什么？

Question

name "add-sub"
org 100h

        mov al, 5 ; bin=00000101b
        mov bl, 10 ; hex=0ah or bin=00001010b
        add bl, al
        sub bl, 1
        mov cx, 8
 print: mov ah, 2 ; print function.
        mov dl, '0'
        test bl, 10000000b ; test first bit.
        jz zero
        mov dl, '1'
  zero: int 21h
        shl bl, 1
        loop print
        mov dl, 'b'
        int 21h
        mov ah, 0
        int 16h
        ret

标签： loopsassemblyemu8086flowchart