Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!homxb!mtuxo!rolls!doug!tim
From: tim@doug.UUCP (Tim J Ihde)
Newsgroups: comp.sources.bugs
Subject: Re: PC Nethack 2.2 bugs + help wanted linking
Summary: fix for stack+data > 64K
Message-ID: <384@doug.UUCP>
Date: 9 Dec 87 14:48:41 GMT
References: <492@silver.bacs.indiana.edu> <428@pcrat.UUCP>
Organization: AT&T ISL - Somerset, NJ
Lines: 36


In article <428@pcrat.UUCP>, rick@pcrat.UUCP (Rick Richardson) writes:
> 
> I can't even get a link with MS C 5.0.  Complains about stack and data >64K.
> 

This means that the default data segment, which contains initialized global
data and the stack, is larger than 64K.  With the good 'ol *86 machines,
this is the big nono.  What you need to do to get around this is to look
at some of the files that contain lots of initialized globals and tell
the compiler to use a segment other than the default for that modules data.
I don't remember the exact files I used, but it seems that one of the
shopkeeper files was a good candidate.

The syntax for telling the compiler to move initialized data to segment
other than the default is to add:

	-Au -ND MOREDATA

to the MSC command line.  This will create a separate data segment for this
module called MOREDATA and put all initialized data into it.  Append this
ONLY for the files that have lots of data.  Once this is done the linker
should not complain.  You will probably have to do this for several files,
but hey - that's the fun of segments. :-)

		tim

PS	This technique was developed with the old version of NETHACK, I
	haven't actually tried 2.2 yet.  Must download all the files
	first . . .

-- 
Tim J. Ihde					ihnp4!ctsmain!doug!tim
(201) 535-9897

Ok, we can all agree that this is my fault.