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	Number	Readable	Writable
Palette Value Register	$41	true	true
Enhanced ULA Ink Color Mask	$42	true	true
Enhanced ULA Control Register	$43	true	true
Enhanced ULA Palette Extension	$44	true	true
Transparency colour fallback Register	$4A	true	true
Sprites Transparency Index Register	$4B	true	true
Tilemap Transparency Index Register	$4C	true	true
Memory management slot 0 bank	$50	true	true
Memory management slot 1 bank	$51	true	true
Memory management slot 2 bank	$52	true	true
Memory management slot 3 bank	$53	true	true
Memory management slot 4 bank	$54	true	true
Memory management slot 5 bank	$55	true	true
Memory management slot 6 bank	$56	true	true
Memory management slot 7 bank	$57	true	true
Copper Data	$60	false	true
Copper Control Low Byte	$61	true	true
Copper Control High Byte	$62	true	true
Copper Data 16-bit Write Register	$63	false	true
Vertical Video Line Offset Register	$64	true	true
ULA Control Register	$68	true	true
Display Control 1 Register	$69	true	true
LoRes Control Register	$6A	true	true
Tilemap Control Register	$6B	true	true
Default Tilemap Attribute Register	$6C	true	true
Tilemap Base Address Register	$6E	true	true
Tile Definitions Base Address Register	$6F	true	true
Layer 2 Control Register	$70	true	true
Layer 2 X Offset MSB Register	$71	true	true
Sprite port-mirror Attribute 0 (with INC) Register	$75	false	true
Sprite port-mirror Attribute 1 (with INC) Register	$76	false	true
Sprite port-mirror Attribute 2 (with INC) Register	$77	false	true
Sprite port-mirror Attribute 3 (with INC) Register	$78	false	true
Sprite port-mirror Attribute 4 (with INC) Register	$79	false	true
User Storage 0 Register	$7F	true	true
Expansion Bus Enable Register	$80	true	true
Expansion Bus Control Register	$81	true	true
Internal Port Decoding b0-7 Register	$82	true	true
Internal Port Decoding b8-15 Register	$83	true	true
Internal Port Decoding b16-23 Register	$84	true	true
Internal Port Decoding b24-31 Register	$85	true	true
Expansion Bus Decoding b0-7 Register	$86	true	true
Expansion Bus Decoding b8-15 Register	$87	true	true
Expansion Bus Decoding b16-23 Register	$88	true	true
Expansion Bus Decoding b24-31 Register	$89	true	true
Expansion Bus I/O Propagate Register	$8A	true	true
Alternate ROM	$8C	true	true
Memory Mapping Register	$8E	true	true
Pi GPIO Output Enable Register	$90-$93	true	true
Pi GPIO Register	$98-$9B	true	true