How to reference a variable in another asm file

[kohlyang]

hi, brothers, trouble you again:

in 1.asm, i declare a variable
.data
lpBuffer db "hello world", 0

and in 2.asm, how can I use that variable.



as i know if define a function 1.asm
f1 proc
  ret
f1 endp

we can use it in 2.asm like
f1 proto
then call f1, or invoke f1, but i don't know what about for variable.


in C language, i can do like in 1.c
char* lpBuffer

then in 2.c
extern char* lpBuffer


so can give me a way in asm, thanks ...  :bg

[oex]

if you just use

include \masm32\1.asm

You can use lpBuffer as if it's in the same file.... it (effectively) just replaces the include statement with the file contents

If you are refering to seperately build projects ie dlls someone elsemay be able to help you out

[box]

If you're asking how to make data in a library public you use something like:

Code Select Expand


.data
lpBuffer db "hello world", 0
public lpBuffer

and in the .inc file or 2.asm you would put something like:

Code Select Expand


extern lpBuffer:byte


Chapter 8 in the MASM programmers guide discusses this - I'm pretty inexperienced with MASM so maybe someone can elaborate

[MichaelW]

The attachment contains a simple example.

[kohlyang]

If you're asking how to make data in a library public you use something like:

Code Select Expand


.data
lpBuffer db "hello world", 0
public lpBuffer

and in the .inc file or 2.asm you would put something like:

Code Select Expand


extern lpBuffer:byte


Chapter 8 in the MASM programmers guide discusses this - I'm pretty inexperienced with MASM so maybe someone can elaborate

hi, box, thanks, this forum can always give me surprising result, after verify it can work,  :bg :thumbu

and for "Chapter 8 in the MASM programmers guide", do you mean "masm32.chm"? I should read more help documents ...

[kohlyang]

thanks for all of your enthusiastic reply, i should read more about these help documents first, then ask some high quality questions, not just basic ones.

[jj2007]

and for "Chapter 8 in the MASM programmers guide", do you mean "masm32.chm"? I should read more help documents ...

See this thread.