dillon@PAVEPAWS.BERKELEY.EDU (Matt Dillon) (06/24/86)
Extracting entries from Motorola's programmer's ref. man for the 68000: (pg 189) note that this doesn't include EA calculation time, but that's the same anyway between processors (or is trivial comparativly) 68000 68010 speed increase MULS 70 42 1.6 x MULU 70 40 1.75 x DIVS 158 122 1.29 x DIVU 140 108 1.29 x The multiply and divide instructions have obviously been cleaned up for the 68010 (most other instructions are the same, or within a clock, however: mul/div enhancements are definately the cream of the crop in terms of changes) For intensive math, 20% is reasonable considering that other instructions with less drastic changes between processors will also be executed. However, I would test it out (with few exceptions, Never believe your dealer) -Matt