100分求汇编实现1到100之间奇数和偶数的求和

[snowbirdfly]

由于本人好久没有用8086汇编了,朋友让这个程序,希望借宝地向高手求助~~~
程序很简单,但是就是把汇编语法都忘了,谢谢大家了~~~

[用户 昵称]

data segment
	sum1 dw 0
	sum2 dw 0
data ends
stack segment
	s db 1000 dup( 0 )
stack ends
code segment
	assume cs:code, ds:data, ss:stack
start:
	mov ax, 0
	mov cx, 100		;偶数部分
loop1:
	add ax, cx
	dec cx
	loop loop1
	mov sum1, ax
	
	mov ax, 0
	mov cx, 99		;奇数部分
loop2:
	add ax, cx
	dec cx
	loop loop2
	mov sum2, ax
	
	mov ah, 4ch
	int 21h
code ends
	end start

大概是这样

[snowbirdfly]

好的，谢了~~~

;实现1-100之间的奇数相加
datas segment
  sum dw ?
datas ends
codes segment
assume cs:codes,ds:datas
start: 
  mov ax,0
  mov bx,1 
  mov cx,50
next: 
  add ax,bx
  inc bx
  inc bx
  loop next
  mov sum,ax
  mov ah,4ch
  int 21h
codes ends 
end start

看看有没有什么逻辑错误啊,谢了 ~~~

[用户 昵称]

别着急，俺在debug呢，不知道是否正确呢，bug一堆。

[用户 昵称]

data segment
	sum1 dw 0
	sum2 dw 0
data ends
stack segment
	s db 1000 dup( 0 )
stack ends
code segment
	assume cs:code, ds:data, ss:stack
start:
	mov ax, data
	mov ds, ax
	
	mov ax, 0
	mov cx, 0		;偶数部分
loop1:
	add ax, cx
	inc cx
	inc cx
	cmp cx, 101
	jl loop1
	mov sum1, ax
	
	mov ax, 0
	mov cx, 1		;奇数部分
loop2:
	add ax, cx
	inc cx
	inc cx
	cmp cx, 100
	jl loop2
	mov sum2, ax
	
	mov ah, 4ch
	int 21h
code ends
	end start

俺这段代码应该没问题了。

[snowbirdfly]

好的，谢了~~~

[cnzdgs]

	xor	ax, ax
	mov	cx, ax	; cx储存奇数的和
	mov	dx, ax	; dx储存偶数的和
lp:
	inc	ax
	cmp	ax, 100
	ja	Exit
	test	ax, 1
	jz	even
	add	cx, ax
	jmp	lp
	add	dx, ax
	jmp	lp
exit:
	ret

[嗷嗷叫的老马]

顶

[ppzzhhsky]

data segment
sum1 dw 0
sum2 dw 0
data ends
stack segment
s db 1000 dup( 0 )
stack ends
code segment
assume cs:code, ds:data, ss:stack
start:
mov ax, data
mov ds, ax

mov ax, 0
mov cx, 0 ;偶数部分
loop1:
add ax, cx
inc cx
inc cx
cmp cx, 101
jl loop1
mov sum1, ax

mov ax, 0
mov cx, 1 ;奇数部分
loop2:
add ax, cx
inc cx
inc cx
cmp cx, 100
jl loop2
mov sum2, ax

mov ah, 4ch
int 21h
code ends
end start

[wen513520]

assume cs:code
code segment
start: mov bx,0
mov cx,50
mov ax,0
mov dx,0
loop1: add bx,1
add ax,bx
add bx,1
add dx,bx
loop loop1
mov ax,4c00h
int 21h
code ends
end start