assembly macro syntax...

[Noonan, Michael E (Michael)]

> I have a simple question for anyone who knows how to write assembly macros
> for the GNU compiler.  I am trying to port macros that target the Diab
> compiler for PPC and am having a hell of a time figuring out the correct
> syntax.  The macros are used to test the PPC exception handler by forcing
> the respective exceptions.  Here are a couple of the Diab format assembly
> macros for reference...
> 
> VOID  excpTestPage (ULONG input)
> {
>    asm (" lwz r4,0(r3)");
> }   
> 
> VOID  excpTestIsi (VOID)
> {
>    asm (" .long 0x4BC00001");  // branch to 0x0F00_0000 + ip
> }   
> 
> VOID  excpTestTrap (ULONG input)
> {
>    asm (" twgti r3,5"); // trap if input is greater than 5
> }
> 
> I have scoured the GCC manual and cannot figure it out from the given
> info.
> 
> Any help is greatly appreciated.  Thanks, Mike