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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 15:07:00 -0000	[thread overview]
Message-ID: <19990506150724.A10994@cygnus.com> (raw)
In-Reply-To: <19990505165232.A8594@attis.cs.nmt.edu>

On Wed, May 05, 1999 at 04:52:32PM -0600, Cort Dougan wrote:
> The signed change at the top makes sense with what the manual says.  The
> operand in questions should be a 16-bit unsigned immediate value not signed
> (as it was before).
[...]
>    /* The SI field in a D form instruction when we accept a wide range
>       of positive values.  */
>  #define SISIGNOPT SI + 1
> -  { 16, 0, 0, 0, PPC_OPERAND_SIGNED | PPC_OPERAND_SIGNOPT },
> +  { 16, 0, 0, 0, /*PPC_OPERAND_SIGNED |*/ PPC_OPERAND_SIGNOPT },

Looking at this again, I wonder if this change is correct.

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?


r~

       reply	other threads:[~1999-05-06 15:07 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 [this message]
     [not found]       ` <19990506161159.A27229@attis.cs.nmt.edu>
1999-05-06 15:35         ` Richard Henderson
     [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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