Hi,
Has anyone implemented atomic add function for Alpha that works in m5? I
tried to write this using inline assembly in gcc:
void atomic_add(volatile long* operand)
{
int temp;
asm volatile (
"1: ldq_l %0, %1 \n"
" addl %0, 1, %0 \n"
" stq_c %0, %1 \n"
: "=&r" (temp),
"=m" (*operand)
: "m" (*operand)
);
}
but it does not work and I don't much about alpha instruction set. I don't
want to use operation system based mutex because that comes with a big
overhead. Does any one have a better idea?
Thanks,
Amir
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