I need to define an inline asm function that returns a long long for SC3850. In the asm_header a "return in $<your register here>" has to be specified. The function looks something like this:
long long asm f(int a, int b)
{
asm_header
.arg
_a in $d0;
_b in $d1;
return in <your register here>;
asm_body
...
asm_end
}
Normally something like "$d0" is provided in the "return in" clause, but since long longs are passed/returned in register pairs the syntax would have to be a little different. I've tried a number of things and all of them fail with a syntax error:
return in $d0:$d1;
return in $d0,$d1;
return in $d0-$d1;
I've tried specifying only one register too, but the compiler knows that isn't a match for returning a long long.
Does anybody know if there's a way to do this?
I'm using CW 10.2.X for StarCore SC3850.
Thanks in advance!
