4-1.asm

来自「1、熟悉运算类指令对标志位的状态影响以及标志位状态的表示方法； 2、掌握条件转」· 汇编 代码 · 共 53 行

DATA SEGMENT
     A DW 8
     B DW 7
DATA ENDS


CODE SEGMENT
     ASSUME CS:CODE,DS:DATA
START:
     MOV AX,DATA
     MOV DS,AX

     MOV CX,0
     MOV AX,A
     AND AX,1
     JNZ SKIP1
     INC CX

SKIP1:
     MOV AX,B
     AND AX,1
     JNZ SKIP2
     INC CX

SKIP2:
     CMP CX,1
     JE SKIP3
     JB SKIP4
     JA SKIP5

SKIP3:
     MOV AX,A
     AND AX,1
     JNZ SKIP5
     MOV AX,A
     MOV BX,B
     MOV B,AX
     MOV A,BX
     JMP SKIP5

SKIP4:
     MOV AX,A
     ADD AX,1
     MOV A,AX
     MOV AX,B
     ADD AX,1
     MOV B,AX

SKIP5:
     MOV AH,4CH
     INT 21H
CODE ENDS
END START