pps wrote:
> Danny Backx wrote:
>> On Sat, 2009-08-29 at 17:30 -0400, pps wrote:
>>> The problem I'm getting is that I can't build for iwmmxt cpu. I tried 
>>> -mcpu=iwmmxt -march-iwmmxt -mabi=wmmxt etc, but nothing works.
>> I've never tried that. What's a iwmmxt cpu ? (What does it do different
>> from the basic ARM we're compiling for?)
> 
> iwmmxt is the xscale cpu that has wmmx instruction set support (which 
> resembles mmx from i386). Initially I thought that -mcpu=xscale is 
> enough but then I found out that I had to use -mcpu=iwmmxt. I have some 
> code that uses wmmx and I'm trying to compile it.
> Here's reference for ms compiler for wmmx:
> http://lmgtfy.com/?q=WMMX+Intrinsic+Functions
>

I just tried to change that
#undef ARM_DOUBLEWORD_ALIGN
#define ARM_DOUBLEWORD_ALIGN 0

to #undef ARM_DOUBLEWORD_ALIGN
#define ARM_DOUBLEWORD_ALIGN 1

and in this case nothing compiles. I get exception in strd opcode 
(unaligned memory). I did clean rebuild if it matters.

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