[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: PowerPC objdump
|
From: |
Alan Modra |
|
Subject: |
Re: PowerPC objdump |
|
Date: |
Thu, 3 Aug 2006 21:50:25 +0930 |
|
User-agent: |
Mutt/1.4i |
On Thu, Aug 03, 2006 at 12:36:28PM +0200, Ramon Bertran Monfort wrote:
> On branch-conditional (bc) instructions the
> generated objdump string shows diferent
> branch hint for the same opcode.
PowerPC processors use two different schemes for branch hints. Older
processors use a single "y" bit, newer processors use two "at" bits.
You need to read your processor documentation to figure out how they
work. Pass -mpower4 to gas to enable "at" branch hints.
--
Alan Modra
IBM OzLabs - Linux Technology Centre
- PowerPC objdump, Ramon Bertran Monfort, 2006/08/03
- Re: PowerPC objdump,
Alan Modra <=