Quote:
Originally Posted by kamelito
3) Interesting, but to be useful to me it needs to get two improvements:
- it needs to actually recognize "nop" 
- on the Atari ST clock cycles are rounded to multiple of 4 due to the way the bus is accessed, so this EXG would take 8 cycles instead of 6 in most situations. |
on the ST is observable so called 'instruction pairing' where e.g. two 6 instructions take together 12 cycles instead of 16 (8+8) after rounding.
http://pasti.fxatari.com/68kdocs/Ata...eCounting.html