Xref:	news2.mv.net comp.os.msdos.djgpp:622
From:	ewillard AT hertz DOT elee DOT calpoly DOT edu (Eric Willard)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Assembly Questions
Date:	28 Jan 1996 21:28:41 GMT
Organization:	California Polytechnic State University, San Luis Obispo
Lines:	18
Message-ID:	<4egpq9$mtf@isnews.csc.calpoly.edu>
NNTP-Posting-User:	ewillard AT hertz DOT elee DOT calpoly DOT edu
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

I'm working on a project that mixes assembly language with C++, and I
have a few questions:

  1. What is the "start comment" character under 'as'?  The '/' char-
     acter seems to work fine for comments that take the whole line,
     but I have seen odd error messages if I use it after an argument.
     The 'info' docs don't say anything about i386 comments.

  2. If I write a class's member function in assembly, what registers
     can I modify without saving?  Based on the assembly I've seen
     generated by GPP, I can freely modify %eax, %ecx, and %edx.  What
     about %ebx, %esi, and %edi?

If you have an answer, or even just a suggestion, please post a follow-
up here or e-mail me at ewillard AT gauss DOT elee DOT calpoly DOT edu.  Thanks.


Eric Willard SNOE

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