The MiSTer FPGA project has become a cornerstone for our retro computing fix, offering a way to experience classic hardware with unparalleled accuracy. Rather than using software emulation, which simulates the original hardware, the MiSTer C64 core uses the DE10 Nano FPGA to recreate the Commodore 64’s internal logic and circuits on a modern chip. This hardware level approach results in a near-perfect replication of the original machine, ensuring cycle accurate performance and eliminating the input lag often associated with software emulators. It’s the closest you can get to the real thing without a now considered vintage C64 itself.
The MiSTer C64 core is constantly being improved by a dedicated community and Sorg, the founder of the MiSTer project itself, and recent updates continue to enhance its compatibility and functionality. The latest additions address key areas for both dabblers and the hardcore.
Latest MiSTer C64 Core Updates
Cartridge Support: The update adds the ability to write to Easyflash carts. The Easyflash is a popular modern cartridge for the C64 that uses flash memory, allowing users to burn new software or games to the cart directly from the computer. This new write support makes the MiSTer core even more functional for users who want to create and manage their own cartridge images. Additionally, the update adds support for two specific cartridge types: Waterloo Structured BASIC and BMP-Data Turbo 2000. These were specialized cartridges that expanded the C64’s capabilities, particularly in programming and disk access speed.
Improved Compatibility: To ensure a smoother experience with a wider range of software, a change was implemented to disable turbo while I/O access is occurring. This fixes compatibility issues that could arise when the core’s turbo mode interfered with certain disk or tape operations.
Bug Fixes and Framework: A specific fix was made to the IEC (serial bus) to address a g64 buffer wraparound issue, which resolves a problem that was preventing the game Videodr0me from working correctly. Finally, the core’s underlying framework was updated, which typically includes a number of small optimizations and general improvements that enhance stability and performance across the board.