Question

汇编编程求1+2+3+...+100，结果存入AX中

Answer 1

DATAS SEGMENT str1 db 's=$' str2 db 13,10,'n=$' DATAS ENDS
STACKS SEGMENT STACKS ENDS
CODES SEGMENT ASSUME CS:CODES,DS:DATAS,SS:STACKSSTART: MOV AX,DATAS MOV DS,AX MOV AX,0 MOV BX,0LP1: INC BX ADD AX,BX CMP AX,500 JB LP1 mov si,bx mov cx,0 mov bx,10 let2: mov dx,0 div bx push dx inc cx cmp ax,0 jnz let2 lea dx,str1 mov ah,9 int 21h let3: pop ax add al,30h mov dl,al mov ah,2 int 21h loop let3 lea dx,str2 mov ah,9 int 21h mov ax,si mov cx,0 let4: mov dx,0 div bx push dx inc cx cmp ax,0 jnz let4 let5: pop ax add al,30h mov dl,al mov ah,2 int 21h loop let5 MOV AH,4CH INT 21HCODES ENDS END START

Answer 2

MOV AX, 0
MOV CX, 100
LLL:
ADD AX, CX
LOOP LLL
HALT