lijie22a.asm

汇编语言的一个小程序汇编语言的一个小程序

DATA SEGMENT 
FIRST DW 5A6BH
DATA ENDS
CODE SEGMENT
     ASSUME CS:CODE,DS:DATA
BEG: MOV AX,DATA
     MOV DS,AX
     MOV CX,0404H
LAST:ROL FIRST,CL
     MOV AX,FIRST
     AND AL,0FH
     ADD AL,90H
     DAA
     ADC AL,40H
     DAA
     MOV  DL,AL
     MOV  AH,2
     INT  21H
     DEC  CH
     JNZ  LAST
     MOV  AH,4CH
     INT 21H
CODE ENDS
     END  BEG