This 8KB ROM contains Commodore BASIC v2.0. Interestingly, this chip is generally identical across both North American (NTSC) and European (PAL) models.
These BIOS files are copyrighted material originally owned by Commodore Business Machines. While widely available on community archives like Zimmers.net or C64-Wiki , they are technically "abandonware." Download [BIOS] Commodore VIC-20 (Europe)
To emulate or restore a European VIC-20, three primary ROM images are typically required: This 8KB ROM contains Commodore BASIC v2
The "heart" of the system. This version is specifically timed for PAL regions. It handles input/output operations, memory management, and hardware initialization. While widely available on community archives like Zimmers
The system clock and interrupt timers are calibrated for a 50Hz refresh rate, compared to the 60Hz rate used in North America. Implementation and Emulation
Most downloads provide these as .bin or .rom files, often named by their Commodore part numbers (e.g., 901486-07.bin ).