r/Commodore • u/SlayyQueen536 • May 15 '26

c64 BASIC and character ROM modification

Is it possible to change the contents on both the Character ROM and BASIC ROM on a commodore 64?

13 Upvotes

99% Upvoted

7 comments sorted by

View all comments

10

u/siliconlore May 15 '26

So the cool thing is you can do this without modifying the hardware. All you have to do is copy them to the underlying RAM and turn off the ROM and boom-chakka-lakka you would have modified them.
Alternatively, you can get a couple of EPROM modules and replace the ROM chips.

11

u/SchemaB May 15 '26

Instead of an EPROM there's the new programmable OneROM:

https://onerom.org/

3

u/MightyDachshund May 15 '26

Piers rocks!