> BTW there was an "unreasonable" acceleration of trial factoring
> between the P5 architecture (Pentium Classic/MMX) and the P6
> architecture (Pentium Pro / PII / PIII / Celeron / Xeon), so you
> can't simply assume that Intel doesn't care about integer
> performance!
But they clearly don't care about it on the P4:
Command Ticks on P2/P3 Ticks on P4
MOV 1 1
ADD/SUB 1 1
ADC/SBB 2 8
MUL 4 14-18
SHR/SHL 1 4
Michael.
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