This is a chip-level emulator. It won't fake the C64 — it runs your uploaded Commodore ROM images against a real 6502/6510 core. Drop the three ROM files below. They stay in your browser (cached to localStorage, never uploaded anywhere).
BASIC ROM○
basic.901226-01.bin → $A000–$BFFF
8 KB
Character ROM○
characters.901225-01.bin → $D000–$DFFF (banked)
4 KB
KERNAL ROM○
kernal.901227-01.bin → $E000–$FFFF
8 KB
Memory map: $0000/01 CPU I/O port · $0002-$00FF zero page · $0100-$01FF stack · $0200-$03FF OS vectors + kbd buffer · $0400-$07FF screen RAM · $0800-$9FFF BASIC program · $A000-$BFFF BASIC ROM · $C000-$CFFF free RAM · $D000-$DFFF I/O + CHAR ROM · $E000-$FFFF KERNAL ROM.