汇编语言编程问题？会的来。

以NUM为首地址的存储区域中有50个带符号的数，统计其中负数，0，正数的个数，并分别存放于C1,C2,C3单元中（假设C1，C2，C3变量以定义），写程序段完成上述功能

data segment

NUM DW 50 DUP(?)

C1 DW 0

C2 DW 0

C3 DW 0

data ends

code segment

assume cs:code, ds:data

start:

mov ax,data

mov ds,ax

mov es,ax

mov si, offset NUM

mov cx, 50h

cld

Loop_Start:

lodsw

or ax,ax

jz L_0

jg L_G

inc C1

jmp Loop_Next

L_0:

inc C2

jmp Loop_Next

L_G:

inc C3

Loop_Next:
Loop Loop_Start

code ends
end start

data segment num dw 10 dup(0,-1,2,3,-4);测试数据 c1 dw 0 c2 dw 0 c3 dw 0 data ends code segment assume cs:code,ds:data start: mov ax,data mov ds,ax lea si,num mov cx,50 next: mov ax,word ptr[si] cmp ax,0 jl fushuc1 jg zhengshuc3 inc c2 jmp tonext fushuc1: inc c1 jmp tonext zhengshuc3: inc c3 tonext: add si,2 loop next mov ah,4ch int 21h code ends end start

data segment ORG 3000H array db 0FFH,035H,0C8H,33H,1H,0H,0EAH Z db 0 F db 0 L db 0 data ends

stack segment db 64 dup(0) stack ends

code segment assume cs:code,ds:data,SS:stack start: mov ax,data mov ds,ax mov si,offset array mov cx,offset Z sub cx,si lop:mov al,[si] cmp al,0 jnz non inc [L] jmp ag non:test al,80H jnz isf inc [Z] jmp ag isf:inc [F] ag: inc si loop lop int 3 mov ah,4CH int 21H code ends end start

以前我做的~~

变量自己改下OK