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From: petersen@UICSRD.CSRD.UIUC.EDU (Paul Petersen)
Newsgroups: gnu.gcc
Subject: Porting question
Message-ID: <8812042151.AA00463@uicsrd.csrd.uiuc.edu>
Date: 4 Dec 88 21:51:50 GMT
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Distribution: gnu
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I'm attempting to alter the md file from gcc 1.31 to port it to a variant
of the mc68000.  The problem I'm getting is that the FPU does not support 
immediate operands.  Deleting the "F" modifier seems to do the trick
for non-optimized code but I get an abort message when I use -O.

The version currently generates something like this:

        fmoved  #0r256,fp0

But it needs to always generate something like this:

LC0:    .double 0r256
        fmoved  LC0,fp0

What do you change to get this to work.

-Paul Petersen

University of Illinois, Urbana-Champaign
Center for Supercomputing Research and Development

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