GP32 Asm In Devkitadv

[Franxis]

I'm trying to enter some "nop" asm codes into my GP32 MAME port, but the compiler seems to don't like this (GCC 3.02).
I the C source code i have tried things like asm("nop"); or asm volatile {..., without success.
Is there any way to enter assembly into the C code in GCC 3.02?

Regards.

 

[Squidge]

yup,

asm volatile("<instruction>");

Should do the trick. But I don't think NOP is a valid assembler command for the ARM processor, although I might be wrong, as I've not checked.

You should really upgrade to GCC 3.4 though. It's much improved, lot less bugs, generated code is faster, etc.

 

[Franxis]

I have tried gcc 3.4, but there are a lot of warning messages in the compilation, and after when running ghosts'n goblins i.e. the GP32 resets after a while...

I would like to have gcc 3.04, because gcc 3.02 maybe does not support asm inline in C code...

 

[Franxis]

I have tried asm volatile ("nop"); and the result is the same:
"parse error before volatile".

Any suggestion?

Regards.

 

[Squidge]

try placing an underscore or two.

_asm
__asm

etc. Older versions may only support the above.

 

[Franxis]

__asm("nop");

It runs Ok ! Thank you !

 

[SvOlli]

For a compiler / toolchain update take a look at http://devkit.tk/ (devkitarm). The development on devkitadv has been stopped long ago. Imho, devkitarm obsoletes devkitadv.

Greetings,
SvOlli