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Mail Archives: djgpp/1995/04/23/03:51:50

From: huntercr AT cs DOT purdue DOT edu (Charles Hunter)
Subject: Little endian to big endian and vice versa...
To: executor AT nacm DOT com (Executor mailing list),
DJGPP AT sun DOT soe DOT clarkson DOT edu (djgpp mailing list)
Date: Sat, 22 Apr 1995 10:18:55 -0500 (EST)
Cc: huntercr AT cs DOT purdue DOT edu (Charles Randolph Hunter)

Hi gang,

I know that this is inappropriate to post on either of these lists, but
I hear it talked about so often that I thought I might ask here.

I am working on a project that will convert simple binaries across
two platforms and or back again. This is similar to a program 
I picked up called, "86to68", which converts 8086 asm to 68000 asm.
I am attempting to do this from the assembled [binary ] 
level. Sort of a re-assembler. Things are working out well, but I have
been ignoring, until now, the endian difference.

My question is: What patterns should the program look for? What kind
of strategy should the program use to check?
I'll admit, I am a little  ignorant on the subject. 
Can this be swapped statically at all? 
If so, Should I execute the program internally and tag all references to 
16+bit  data?  
If not... am I going to have to add a swap routine to every
program that is reassembled?  I'm confused. 8-)

Right now, I am only implementing a 2 pass dissasemble that 
does nothing with what appears to be dataspace.


Mat? Cliff? DJ? anyone???

		Help! 

			--Charles Hunter



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