What's New:
- Implement the HALT bug, where executing a HALT instruction while IME=0 and (IE & IF) != 0 causes the program counter to fail to increment after the next opcode read; this fixes The Smurfs from hanging on startup as it depends on the HALT bug to change an LDH A, ($FF00+$8C) instruction (F0 8C) into LDH A, ($FF00+$F0) followed by ADC H (F0 F0 8C)
- Add an About window specifying current version