Re: [Gnewsense-dev] Re: gNewSense-MIPS and SiliconMotion video driver

[Wu Zhangjin]

On Thu, 2010-03-18 at 08:39 -0400, Brett Smith wrote:
[...]
> > Are you seeing similar errors to those pasted at the bottom? This is a
> > build I attempted on metad and lenny.
> >
> > ../../src/smi_video.c:1877: warning: unused variable 'pScreen'
> > /tmp/ccBlnV2F.s: Assembler messages:
> > /tmp/ccBlnV2F.s:4616: Error: illegal operands `xor $f0,$f0,$f0'
> > /tmp/ccBlnV2F.s:4617: Error: opcode not supported on this processor: mips1 
> > (mips1) `ldc1 $f4,($4)'
> > /tmp/ccBlnV2F.s:4618: Error: unrecognized opcode `punpcklbh $f2,$f4,$f0'
> > /tmp/ccBlnV2F.s:4619: Error: unrecognized opcode `punpckhbh $f4,$f4,$f0'
> > /tmp/ccBlnV2F.s:4620: Error: opcode not supported on this processor: mips1 
> > (mips1) `ldc1 $f16,8($4)'
> 
> [snip]
> 
> Yep, those are the ones.  I even tried this with binutils 2.20 with the
> loongson2f patch and still got this problem.
> 
> Those opcodes are coming from some assembly code that's included
> directly in the patch.  This patch was written specifically for the
> Loongson, so I wonder what's going on...

Should we explicitly use "set .mips3" here to tell the compiler to
understand the instructins or use -march=loongson2f?

I'm not sure about this problem, perhaps Xiang Yu (from Lemote) can give
a help, just put him into the CC: list.

Regards,