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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	[thread overview]
Message-ID: <19990506153554.B10994@cygnus.com> (raw)
In-Reply-To: <19990506161159.A27229@attis.cs.nmt.edu>

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~

  parent reply	other threads:[~1999-05-06 15:35 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <19990504180843.A31050@attis.cs.nmt.edu>
     [not found] ` <19990505145806.H9469@cygnus.com>
     [not found]   ` <19990505165232.A8594@attis.cs.nmt.edu>
1999-05-06 15:07     ` Richard Henderson
     [not found]       ` <19990506161159.A27229@attis.cs.nmt.edu>
1999-05-06 15:35         ` Richard Henderson [this message]
     [not found]           ` <19990506171639.A26711@attis.cs.nmt.edu>
1999-05-06 16:56             ` Richard Henderson
     [not found]               ` <19990506180806.A5113@attis.cs.nmt.edu>
1999-05-06 17:49                 ` Richard Henderson
     [not found]                   ` <19990506185754.A12025@attis.cs.nmt.edu>
1999-05-06 18:43                     ` Richard Henderson
1999-05-06 20:06       ` Ian Lance Taylor
1999-05-06 20:13         ` Richard Henderson
1999-05-06 20:43           ` Ian Lance Taylor

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