;输入数字0~9,输出对应的ASCII码
DATA SEGMENT
TAB DB 30H,31H,32H,33H,34H,35H,36H,37H,38H,39H ;建表
DATA ENDS
SSTACK SEGMENT STACK
DW 32 DUP(?)
SSTACK ENDS
CODE SEGMENT
ASSUME CS:CODE, DS:DATA,SS:SSTACK
START:
MOV AX,DATA
MOV DS,AX
MOV AH,01H
INT 21H
SUB AL,30H LEA BX,TAB XLAT
MOV BL,AL
MOV DL,0DH
MOV AH,02H
INT 21H
;得到表内偏移地址;取表的首地址
;查表
MOV DL,0AH
MOV AH,02H
INT 21H
MOV DL,'3'
MOV AH,02H
INT 21H
;SUB BL,30H
MOV DL,BL
MOV AH,02H
INT 21H
MOV DL,'H'
MOV AH,02H
INT 21H
MOV DL,0DH
MOV AH,02H
INT 21H
MOV DL,0AH
MOV AH,02H
INT 21H
JMP START
MOV AH,4CH
INT 21H
CODE ENDS
END START
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