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Re: Modifying ARM code generator for elimination of 8bit writes - need help
- From: Wolfgang Mües <wolfgang at iksw-muees dot de>
- To: Dave Murphy <wintermute2k4 at ntlworld dot com>
- Cc: Rask Ingemann Lambertsen <rask at sygehus dot dk>, Paul Brook <paul at codesourcery dot com>, gcc at gcc dot gnu dot org
- Date: Mon, 5 Jun 2006 12:12:43 +0200
- Subject: Re: Modifying ARM code generator for elimination of 8bit writes - need help
- References: <200605282223.33002.wolfgang@iksw-muees.de> <20060604210104.GB10795@sygehus.dk> <448376F7.7090003@ntlworld.com>
Hello Dave ;-)
On Monday 05 June 2006 02:12, Dave Murphy wrote:
> I was just about to ask about this very thing since I'm quite sure
> that there would be interest in adding this to devkitARM.
You are following the process in dslinux, don't you?
In fact, devkitARM is my current build environment. The first thing that
will happen is a patch to devkitARM.
> How much work would it be to implement these switches?
Good question ;-)
> I assume that the toolchain would need multilibs for these options in
> order to use newlib etc.
I have not looked into library issues now. Compiler comes first.
We will need an asm macro for 8bit writes to the hardware registers.
And the devkitARM libraries *must* implement writeback caching for the
GBA slot ROM area.
regards
Wolfgang
--
We're back to the times when men were men
and wrote their own device drivers.
(Linus Torvalds)