- BetaDisk fixed (there was just needed to start floppy motor ;) [MetalliC]
- Pentagon: fixed 7FFD port addressing; CPU clock fixed; adjusted VBLANK
IRQ timing (border effects works fine now);
- Scorpion: fixed ports addressing;
both machines marked as working.
Notes:
- there are still issues with BetaDisk - for unk reason wrong commands
passed  to WD17xx (imho ROM switching works somehow wrong), but anyway
with  write protected disk images it works more-less fine - files from
disks loaded OK;
- Pentagon1024 randomly crashes then selecting "GLUK BOOT", maybe
also coz of rom switching.