再次求救!~SOS
一、
CODE SEGMENT
ASSUME CS:CODE, DS:CODE
MESS1 DB 'HELLO','$'
MESS2 DB 'WORLD',0DH,0AH,'$'
START PUSH CS
POP DS
MOV CX,2
NEXT CALL DISP
CALL MOVE
LOOP NEXT
MOV AX ,4COOH
INT 21H
DISP PROC
PUSH AX
PUSH DX
MOV AH,09H
SHOW1 : LEA DX,MESS1
LEN EQU ???SHOW1 (???看不清楚)
INT 21H
POP DX
POP AX
RET
DISP ENDP
MOVE PROC
PUSH SI
PUSH DI
PUSH CX
PUSH DS
POP ES
LEA SI,SHOW2
LEA DI,SHOW1
MOV CX,LEN
REP MOVSB
POP CX
POP DI
POP SI
RET
SHOW2 :LEA DX,MESS2
MOVE ENDP
CODE ENDS
END START
子程序DISP的功能是________________
子程序MOVE的功能是________________
为什么将SHOW2标号所在指令放在RET指令后面________________________
运行结果是_____________________________
二、
写运行结果
CODE SEGMENT
ASSUME CS:CODE DS:CODE
TAB DB '1 3 5 7 9 2 4 6 8 0'
MESS '2003 ,12,31' 0
BUFF DB8 DUP ('0'),0DH ,0AN, '$'
START: PUSH CS
POP DS
PUSH DS
POP ES
MOV SI ,OFFSET MESS
MOV DI ,OFFSET BUFF
NEXT: LODSB
CMP AL,O
JZ DISP
SUB AL,30H
MOV BL, AL
XOR BH, BH
MOV AL, TAB[BX]
STOSB
JMP NEXT
DISP: LEA DX,BUFF
MOV AH,09H
INT 21H
MOV AX,4C00H
INT 21H
CODE ENDS
END START
运行结果是_________________________