1.asm

此程序是微机与接口技术的课程设计源程序

;1.ASM
;PUBLIC  INFO1,INFO2,BUFA,BUFB,BUF,MAIN,INFO0,INFO3
EXTRN	CHANGE1:FAR,CHANGE2:FAR,CHANGE3:FAR,CHANGE4:FAR
DATA 	SEGMENT
INFO0 	DB 0AH,0DH,'THIS IS THE CHANGE OF LETTER TO LETER:$' 
INFO1  DB 0AH,0DH,'PLEASE INPUT STRING:$'
INFO2  DB 0AH,0DH,'OUTPUT STRING:$'
BUFA   	DB  81
       	DB ?
       	DB 80 DUP (?)
BUFB  	DB 80 DUP (?)
INFO3	DB 0AH,0DH,'THIS IS THE CHANGE OF DIGITAL TO DIGITAL:',0AH,0DH,'$'
BUF	 	DB 0DH,0AH,'THE NUMBER IS:0100101010001111B',0AH,0DH,'THE RESULT IS:$'
DATA ENDS

STACK	SEGMENT STACK
     	DB 200 DUP (?)
STACK 	ENDS
CODE 	SEGMENT
MAIN 	PROC FAR
      	ASSUME DS:DATA,CS:CODE,SS:STACK
      	MOV AX,DATA
      	MOV DS,AX
      
DISP  	MACRO M
      	LEA DX,M
      	MOV AH,9
      	INT 21H
      	ENDM
      	CALL CHANGE1
      	CALL CHANGE2
      	DISP INFO3
      
      	DISP  BUF
      	CALL CHANGE3
      	CALL CHANGE4
      	RET
MAIN 	ENDP
CODE 	ENDS
     	END