czx.asm

汇编程序

;FILENAME:CZX.ASM
;内容:代码转换
EXTRN	MAIN:FAR,CHANGE5:FAR
STACK	SEGMENT PARA PUBLIC 'STACK'
    	DB 200 DUP (0)
STACK	ENDS
DATA	SEGMENT
;*****主程序中的提示信息*****
STR1 	DB 0AH,0DH, '********************************************$'
STR2 	DB 0AH,0DH, '**                                        **$'
STR3 	DB 0AH,0DH, '**            WELCOME     YOU !           **$'
STR4 	DB 0AH,0DH, '**                                        **$'
STR5 	DB 0AH,0DH, '** THIS IS PROGRAMME OF SHUZHIZHUANGHUAN  **$'
STR6 	DB 0AH,0DH, '**                                        **$'
STR7 	DB 0AH,0DH, '**       PRESS b TO BEGIN EXCHANGE!       **$'
STR8 	DB 0AH,0DH, '**           PRESS q TO EXIT !            **$'
STR9 	DB 0AH,0DH, '**                                        **$'
STR10	DB 0AH,0DH, '********************************************$'
STR11	DB 0AH,0DH,'INPUT ERROR,PLEASE REPESS!','$'
DATA 	ENDS
CODE 	SEGMENT
     	ASSUME CS:CODE,DS:DATA,SS:STACK
START:	MOV AX,DATA
      	MOV DS,AX
DISP  	MACRO M
      	LEA DX,M
      	MOV AH,9
      	INT 21H
      	ENDM
      
    	DISP STR1
      	DISP STR3
      	DISP STR4
      	DISP STR5
      	DISP STR6
      	DISP STR7
      	DISP STR8
      	DISP STR9
      	DISP STR10
LOP:  	MOV AH,8
      	INT 21H
      	CMP AL,'b'
      	JZ  LTOL
      	CMP AL,'q'
      	JZ EXIT
      	DISP STR11
      	JMP LOP
LTOL: 	CALL MAIN
      	CALL CHANGE5
      	JMP start
EXIT: 	MOV AH,4CH
      	INT 21H
CODE  	ENDS
      	END START