Alternative to MUL?

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Overclick

Joined: 11 Jul 2020
Posts: 670
Location: Ukraine

Overclick 25 Jul 2020, 20:41

Hi
What would you recommend to use for multiply simple values?
MULX is too new for old processors but starting from x64 era all CPU supports fpu mmx sse.
Classical MUL needs predetermined registers that annoying.

25 Jul 2020, 20:41

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20513
Location: In your JS exploiting you and your system

revolution 25 Jul 2020, 22:23

IMUL

25 Jul 2020, 22:23

Overclick

Joined: 11 Jul 2020
Posts: 670
Location: Ukraine

Overclick 25 Jul 2020, 22:40

Why I never used this before?.....
Thaks Revolution

25 Jul 2020, 22:40

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