ldrb vs ldrh in gcc-3.4.4 (ARM)

Marius Groeger mgroeger@sysgo.com
Fri Aug 19 08:41:00 GMT 2005


On Thu, 18 Aug 2005, Richard Earnshaw wrote:

> It probably makes no difference in 3.4 and earlier.  It might have a
> small effect in later versions, but gcc doesn't really understand caches
> and their layout yet.

CPU and Arch flags do have an effect on the instruction set available 
in GAS, though, so with bad settings you may end up with a toolchain 
not being able to compile (assemble) code written to control the 
cache.

Regards,
Marius

-- 
Marius Groeger <mgroeger@sysgo.com>
SYSGO AG                      Embedded and Real-Time Software
Voice: +49 6136 9948 0                  FAX: +49 6136 9948 10
www.sysgo.com | www.elinos.com | www.osek.de | www.pikeos.com


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