Subject: RE: assembler syntax
To: None <k.heinz.jun.zwei@onlinehome.de>
From: Michael L. Hitch <mhitch@msu.oscs.montana.edu>
List: port-m68k
Date: 06/30/2002 12:09:23
Klaus Heinz <k.heinz.jun.zwei@onlinehome.de> writes:
> I am unfamiliar with gcc/as assembler syntax (gcc 2.95.3, as 2.11.2,
> NetBSD 1.6_BETA3). The following code has a problem:
>
> int vgar(volatile caddr_t ba, int idx)
> {
> register int erg;
> asm volatile ("movel %1, a0;\
> movel %2,d1;
> movel a0@(d1), %0;" :\
> "=r" (erg):\
> "g" (ba), "d" (idx) :\
> "a0", "d0", "d1");
> return erg;
> }
[...]
> Can someone confirm this?
>
> As the cvs log tells me this functions's file was last modified in 1997,
> I suppose there has been some change in assembler syntax since then?
>
> Can anyone tell me where to find more information about the changes?
> I fear there will be some more places which need to be changed.
I have committed the changes to fix these - the Amiga X server should
compile now.
One possible problem left is the AGA display code. I seem to recall some
kind of problem I ran into with this with the ELF toolchain, but I can't
remember what it was at the time. I can't easily test this at the moment
(my A4000 is running 1.5.1, and I'm not quite ready to upgrade it to 1.6
yet).
Michael
---
Michael L. Hitch mhitch@montana.edu
Operations Consulting, Information Technology Center
Montana State University, Bozeman, MT USA