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The XSCPU64 emulator is a simulation of a C64 equipped with a SuperCPU64 V2B. Features:
Still to do:
The emulation is quite accurate but not perfect. If you code something timing intensive using this simulation please always check it on real hardware to avoid bad surprises.
The hardware itself is asynchronous in nature, therefore caution must be taken to not do long timing loops without synchronization in 20 MHz mode. Also don’t squeeze out the last remaining cycles without leaving a safety buffer. Synchronization points can be created by doing I/O reads or writes and leaving a few hundred cycles left each frame will not hurt.
Otherwise it can happen that the code is running on this version of VICE or my SCPU64 V2+C128D perfectly but nowhere else due to manufacturing variations and frequency drifts.
Next: The keyboard emulation, Previous: CBM-II emulator features, Up: About VICE [Contents][Index]