GP32 asm keyword not recognized

[Sdw]

I'm trying to compile Mr.Spivs MMUChange function, but can't get it to compile:

 void C_MMUChange( void *StartBlock, void *EndBlock, int Flag ) {
	asm volatile(""
  "mov r0,%0 \n"
  "mov r1,%1 \n"
  "mov r2,%2 \n"
  "swi #0x02 \n"
  :
  : "r" (StartBlock), "r" (EndBlock), "r" (Flag)
  : "r0", "r1", "r2"
	);
}

The compiler complains that it doesn't recognize the "asm" keyword. I'm using devkitadv.

 

[jlebrech]

What about __asm__ or _asm_ ?

Hey this code's pretty neat, now i understand asma little bit more.

 

[mithris]

Check the asm output to see what it actually made out of your code..
-S to gcc.

---
mithris

 

[jlebrech]

Good idea bout the -S directive. But what are all these swi commnads are they in the samsung doc or on the arm cd?

And is there a doc about the lcd somewhere so i can compare with mr spivs info.

 

[MojoJojo]

I don't know much about asm, but swi means software interrupt. Normally used for calling bios functions etc. Not sure what its used here for.

 

[Sdw]

Check the asm output to see what it actually made out of your code..
-S to gcc.

---
mithris

But since it doesn't recognize the asm keyword, i presume it doesn't produce anything at all, since the compile halts at an early stage?

 

[mithris]

The compiler just forward whatever is in your asm-statement to the .s file it generates, and then it's up to gas.

---
mithris

 

[jlebrech]

I wonder if anyone has made an asm only project. (i would like to make one like that)

 

[Sdw]

It's solved now, __asm was the keyword!

 

[jlebrech]

Who's ya daddy