From: Michael Matz <matz@suse.de>
To: Andrew Haley <aph@redhat.com>
Cc: "Grégoire Dooms" <dooms@student.info.ucl.ac.be>, gcc@gcc.gnu.org
Subject: Re: porting gcc
Date: Tue, 22 Oct 2002 15:16:00 -0000 [thread overview]
Message-ID: <Pine.LNX.4.33.0210222117360.20702-100000@wotan.suse.de> (raw)
In-Reply-To: <15797.41590.824194.255887@cuddles.cambridge.redhat.com>
On Tue, 22 Oct 2002, Andrew Haley wrote:
> =?iso-8859-1?Q?Gr=E9goire=5FDooms?= writes:
> > I'd like to port gcc to the Microchip PIC 8 bit microcontroller familly.
>
> Ouch. Are you really sure that you want to do this? Gcc requires
> reasonably efficient addressing of stack frames in order to spill and
> fill when there are insufficient physical registers. This might be
> hard to do on the PIC. gcc has been [orted to some 16-bitters, but a
> microcontroller is a stretch.
The AVR _is_ a 8 bit microcontroller, and is supported by gcc (it also
supports it with 16bit integers). Sure, it has around 30 free registers.
And yes, the stack pointer (like all its 16 bit pointers) actually are two
registers.
Ciao,
Michael.
next prev parent reply other threads:[~2002-10-22 19:22 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-22 9:53 Grégoire Dooms
2002-10-22 9:56 ` Grégoire Dooms
2002-10-22 14:40 ` Mike Stump
2002-10-22 14:43 ` Andrew Haley
2002-10-22 15:16 ` Michael Matz [this message]
2002-10-22 15:27 ` Svein E. Seldal
2002-10-22 18:02 ` Mike Stump
2002-10-23 10:05 ` Andrew Haley
2002-10-22 15:50 ` Denis Chertykov
-- strict thread matches above, loose matches on Subject: below --
2008-10-20 10:20 Aurélien Buhrig
2008-10-20 19:34 ` Ian Lance Taylor
2008-03-12 6:11 Porting gcc Schmave
2008-03-12 6:15 ` Ben Elliston
2004-06-04 15:24 Porting GCC Gyle Yearsley
2004-06-02 16:49 Gyle Yearsley
2004-06-03 15:38 ` Richard Sandiford
2004-05-21 13:09 Porting gcc Mile Davidovic
2004-05-21 13:43 ` Dave Korn
2003-08-13 11:15 Petar Penchev
2003-08-13 16:07 ` Ben Elliston
2001-02-15 8:41 porting gcc Filippo Basso
2001-02-15 9:50 ` Fergus Henderson
2001-02-01 2:37 porting GCC Krzysztof Matula
2001-02-01 3:10 ` Richard Earnshaw
2001-02-02 3:43 ` Krzysztof Matula
2001-02-02 4:00 ` Richard Earnshaw
2001-02-02 6:07 ` Krzysztof Matula
2001-02-02 7:08 ` Richard Earnshaw
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