Added a couple more utilities to my utils section as well as a README.md Added source for fast.asm and slow.asm The fast binary strobes address $FFD9 to enable 1.79MHz mode. This is useful for returning the system back to full speed mode after using the slow utility. The slow binary strobes address $FFD8 to enable 0.89MHz mode. This utility is handy for the cases of testing some older programs for timing that were from L1.