阅读下面的程序,并填空,使程序能按预定的设计要求正常运行:
DSEG SEGMENT
ARRAY DB 12H,56H,78H,96H
CNT DW $-ARRAY
DSEG ENDS
SSEG SEGMENT PARA STACK ‘STACK’
DB256DUP(0)
SSEG ENDS
CSEG SEGMENT
ASSUME CS:CSEG,DS:DSEG,SS:SSEG
START:MOV AX,DSEG
MOV DS,AX
LEA SI,ARRAY
MOV CX,CNT
NEXT: LODSB
MOV BL,AL
AND AL,0F0H
【6】
MOV CL,4
SHR AL,CL
POP CX
OR AL,30H
CALL DISP
MOV AL,BL
AND AL,0FH
OR AL,30H
CALL DISP
DEC CX
JCXZ DONE
MOV AL,’,’
CALL DISP
JMP NEXT
DONE: MOV AH,4DH ;中止当前进程,返回调用进程
INT 21H
DISP: MOV AH,14
INT 10H
RET
CSEG: ENDS
END START