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Re: RFC: Support target specific qSupported
On Wed, Feb 3, 2010 at 11:03 AM, Daniel Jacobowitz <dan@codesourcery.com> wrote:
> On Wed, Feb 03, 2010 at 10:59:14AM -0800, H.J. Lu wrote:
>> I am working x86 target descriptions. MMX is alias of ST. How do
>> I do it?
>
> You have many options. ?One is to never describe the MMX registers
> explicitly. ?Make them pseudo-registers. ?This is how ARM NEON
> single-precision registers work.
I will give it a try.
> Aren't they pseudos already? ?You may not have to do anything
> special.
>
x86 has ah, al, ax, eax, rax and will have xmm and ymm. Is there a way to
support them, like
(gdb) p $ax
(gdb) p $ah
Thanks.
--
H.J.