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| subject: | data segment woes |
Answering msg from Paul Edwards to rowan crowe,
on Saturday May 20 1995 at 11:02
rc>> hello proc far
rc>> push ds
rc>> mov ax, {at}data
rc>> mov ds, ax
rc>> .....
rc>> pop ds
rc>> endp
rc>> It's kludgy but then at least it will work under Watcom.
PE> Thanks for your reply, Rowan. However, I tried putting that into
PE> the code, and it compiled under TASM, but WASM complained about
PE> there being no such symbol {at}data.
Try using this instead:
mov ax, seg data
or if that doesn't work,
mov ax, seg {at}data
PE> Could you please elaborate on what you hoped to achieve by using
PE> {at}data? And why do I need to do that in the first place? Why do
PE> you say it is kludgy? And why does it need to be done when I'm
PE> using Watcom, but Borland is fine??!! As you can tell, assembler
PE> is not my strong point, but I really would like to be able to
PE> have more than one compiler that can compile MSGED!!! BFN. Paul.
Having something being able to compile under a popular compiler such as
Watcom would of course be highly desirable. ;-)
I am fine with pure ASM, but a bit rusty when it comes to interfacing
with high level languages. I tend to get lost in DGROUPs and CONSTs and
whatnot.
{at}data or just "data" will generally refer to the data
segment. So, "mov ax, seg data" will load the segment into your
AX register.
All the above code does is to set DS to point to your data segment,
while preserving the original DS when you exit your function.
It may or may not work, depending on your memory model, which is: (?)
Also what are the ASM functions exactly? Actually I have access to
MSQ305.ZIP so I will take a peek now.
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