From mboxrd@z Thu Jan  1 00:00:00 1970
From: Richard Henderson <rth@cygnus.com>
To: Cort Dougan <cort@attis.cs.nmt.edu>
Cc: gas2@sourceware.cygnus.com
Subject: Re: ppc instructions in gas
Date: Thu, 06 May 1999 15:35:00 -0000
Message-id: <19990506153554.B10994@cygnus.com>
References: <19990504180843.A31050@attis.cs.nmt.edu> <19990505145806.H9469@cygnus.com> <19990505165232.A8594@attis.cs.nmt.edu> <19990506150724.A10994@cygnus.com> <19990506161159.A27229@attis.cs.nmt.edu> <19990506161159.A27229@attis.cs.nmt.edu>
X-SW-Source: 1999/msg00096.html

On Thu, May 06, 1999 at 04:11:59PM -0600, Cort Dougan wrote:
> } Which instruction were you trying to fix?  "liu" perhaps? 
> } As-is, it affects instructions like "addis", and you can't
> } really add +50000, can you?
>
> You're right, addis takes a signed 16-bit number.  Things like lis and oris
> take an unsigned 16-bit number, though.  They both use SISIGNOPT.

Then the right thing to do is make those insns use UI instead.

Not having a ppc manual handy, can you provide a complete list
of the incorrect instructions?  Or better yet, a patch?  ;-)


r~