Showing results for History - The Old New Thing

How do you create an atomic operation when the processor doesn't support them?

The return of the branch delay slot.

Squeezing constants into a tiny instruction.

Sliding left and right.

Just the basic operations, not much fancy.

And you thought multiplication was complicated.

Now things get more complicated.

Basic elementary-school stuff.

Basically, there's only one flag.

Quite a lot for a RISC.