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Article #53176

Re: Is there a gas that supports 68040 specific instructions?

#53176
From: bal
Date: Mon, 02 Mar 1992 15:23
33 lines
1543 bytes
Rich,

I grabbed a copy of the pre-alpha version.  I don't have enough
time to get this version of gas to work.   Instead, I just added
the opcodes to gas version 1.38.1.

According to my manual, there are errors in the "m68k.h" file
from the gas-1.92.2 kit.  The opmode field is incorrect on 
many of the 68040 instructions:

	Should be	gas-1.92.2
fsadd	62		32
fdadd	66		36
fsdiv   60		30
fddiv	64		34
fsmul	63		33
fdmul	67		37
fssub	68		38
fdsub	6C		3c
fsmove	40		00
fdmove	44		00

I have contacted Motorola about the problems with the documentation
with the fsabs and fdabs instructions.  I will send you mail when
they tell me the proper bit pattern to generate these instructions.

Just as a comment:  Can the build process for gas be set up 
so that it is possible to set a default target?  I am primarily
interested in supporting the 040 target, but I don't want to pass
the target option to gas.

Bruce Lutz
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References: <9203010025.AA29193@cygnus.com>

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From: bal@westford.ccur.COM
Subject: Re: Is there a gas that supports 68040 specific instructions?
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Date: Mon, 2 Mar 1992 15:23:12 GMT
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