Re: [cdt-dev] Inline Assembly?

[kesselhaus <kesselhaus@xxxxxxx>]

Hi Markus,

Thanks for the reply.

So, you mean,

__asm void foo(void)
{
    /* asm code here */
}

is supported?

Is there an example for it, like for x86 asm as reference to implement 
for ePPC?



Am 17/01/2011 10:33, schrieb Schorn, Markus:
> The parser can handle function-style asm constructs. However, because this is not standard c or c++, it does not do that per default. To turn the feature on, you need to use a custom language (extend GPPLanguage or GCCLanguage and override getParserExtensionConfiguration()).
>
> You may want to create a bug to make the parser handle this c++ extension per default.
>
> Markus.
>
> -----Original Message-----
> From: cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of kesselhaus
> Sent: Sonntag, 16. Jänner 2011 12:50
> To: CDT General developers list.
> Subject: [cdt-dev] Inline Assembly?
> Importance: Low
>
> Hi folks,
>
> We have some C files, which have Inline Assembly for ePPC.
> Currently, I have lots of Syntax Errors there. I currently have
> undefined __asm in Project Settings so at least the function itself has
> not the syntax error set.
>
> Which way is CDT handling Inline Assembly, if at all?
>
> __asm void foo(void)
> {
>       lis     r0, 0x4000@ha
>       ori     r0,r0, 0x1000@l
>       mfspr   r3, SPR_XYZ
>       stw     r3, 0(r1)
> }
>
> or rather
>
> void foo(void)
> {
>       __asm {
>               lis     r0, 0x4000@ha
>               ori     r0,r0, 0x1000@l
>               mfspr   r3, SPR_XYZ
>               stw     r3, 0(r1)
>       };
> }
>
> or gnu style like
>
> void foo(void)
> {
>      asm(
>       "lis     r0, 0x4000@ha"
>       "ori     r0,r0, 0x1000@l"
>       "mfspr   r3, SPR_XYZ"
>       "stw     r3, 0(r1)"
>       , /*in*/ : /*out*/: /*clobber*/ );
> }
>
> And how are the assembler instructtions setup?
>
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