用汇编语言编制在屏幕上显示用*组成的三角形的程序

DATA SEGMENT
DATA ENDS
STACK1 SEGMENT STACK
DB 20H DUP(?)
STACK1 ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA,SS:STACK1
START:MOV AX,DATA
MOV DS,AX
MOV AX,5
MOV BX,1
MOV CX,5
LOP:PUSH CX
PUSH AX
MOV CX,AX
LOP2:MOV DL,20H
MOV AH,02H
INT 21H
LOOP LOP2
PUSH BX
ADD BX,BX
DEC BX
MOV CX,BX
LOP3:MOV DL,'*'
MOV AH,02H
INT 21H
LOOP LOP3
POP BX
MOV DL,0DH
MOV AH,02H
INT 21H
MOV DL,0AH
INT 21H
POP AX
DEC AX
INC BX
POP CX
LOOP LOP
MOV AH,4CH
INT 21H
CODE ENDS
END START