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Forum: Coders. Asm / Hardware 27 July 2021, 22:46
Replies: 15
Views: 2,078
Posted By a/b
Assuming 68000... mulu.w #200,dx is:...

Assuming 68000... mulu.w #200,dx is: 200=c8=11001000, 38+4+6=48 cycles.
If you break it down into shifts and adds it should be around 40 cycles.
Your table approach is 12+4+14=30 cycles worst case...
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