Always false float comparisons
Walter Bright via Digitalmars-d
digitalmars-d at puremagic.com
Tue May 17 13:51:18 PDT 2016
On 5/16/2016 8:15 PM, Era Scarecrow wrote:
> Speed in theory shouldn't be that big of a problem. As I recall the FPU *was* a
> separate processor; Sending the instructions took like 3 cycles. Following that
> you could do other stuff before returning for the result(s), but that assumes
> you aren't *only* doing FPU work. The issue would then come up when you are
> waiting for the result after the fact (and that's only for really slow
> operations, most operations are very fast, but my knowledge/experience is
> probably more than a decade out of date).
With some clever programming, you could execute other instructions in parallel
with the x87.
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