Question

这道汇编小程序哪里出错了，

assume cs:code

a segment

db 1,2,3,4,5,6,7,8

a ends

b segment

db 1,2,3,4,5,6,7,8

b ends

c segment

db 0,0,0,0,0,0,0,0

c ends

code segment

start: mov ax,a

mov ds,ax

mov ax,b

mov es,ax

mov bx,0

mov cx,8

s: mov al,[bx]

add es:[bx],al

inc bx

loop s

mov ax,c

mov ds,ax

mov bx,0

mov cx,8

s0: mov al,es:[bx]

mov [bx],al

inc bx

loop s0

mov ax,4c00h

int 21h

code ends

end start

c:\masm>ml 6.asm
Microsoft (R) Macro Assembler Version 6.15.8803
Patched for you by promethee [ECL] in the year 2001 - enjoy
Copyright (C) Microsoft Corp 1981-2000. All rights reserved.

Assembling: 6.asm
error A4910: cannot open file: c:\masm\ML.err
6.asm(15) : error A2008: : c
6.asm(17) : error A2034:
6.asm(19) : error A2008: : c
6.asm(43) : error A2008: : c
在dos上运行时这个结果，求解
这道题是王爽汇编语言实验5的第五道题

Answer 1

可能是编译软件的问题。你用的软件，是被人破解过的D版。
程序没错。
我编译、连接时，显示的信息如下：

C:\MASM>masm z4
Microsoft (R) Macro Assembler Version 5.10
Copyright (C) Microsoft Corp 1981, 1988. All rights reserved.

Object filename [z4.OBJ]:
Source listing [NUL.LST]:
Cross-reference [NUL.CRF]:

48998 + 411733 Bytes symbol space free

0 Warning Errors
0 Severe Errors

C:\MASM>link z4

Microsoft (R) Overlay Linker Version 3.64
Copyright (C) Microsoft Corp 1983-1988. All rights reserved.

Run File [Z4.EXE]:
List File [NUL.MAP]:
Libraries [.LIB]:
LINK : warning L4021: no stack segment

C:\MASM>z4

C:\MASM>