On Mar-17, Benjamin Goldberg wrote: > > The answer to this question varies from platform to platform, and I've > only go windows to test on... > > If I do 32 "save"s in a row, this will certainly be slower than doing a > single "push". > > If I do 1 "save", this will (hopefully) be faster than 1 "push". > > How many "save"s does it take to be to be slower than one "push"? > > (When writing pasm by hand, what's a reasonable cutoff?)
I would guess that about 256 million saves is the same as 8 million pushes, but that really depends on how much space an entry on the respective stacks take and how large your virtual address space can be -- because the only way to make them equivalent is to call enough of them to run out of memory and crash. :-) Sorry, I'm being obnoxious. You fell into the same trap as I recently did. pushx and save are not interchangeable; they operate on completely different stacks. 'save' pushes an entry of arbitrary type onto the user stack; pushi, pushs, and friends push onto type-specific register frame stacks. Somehow, this needs to be documented better, because it's quite surprising (to me, at least.)
