4 ms·
SSI is a very useful (and underdocumented!) RPi feature - it’s how socket-compatible Raspberry Pi 68k emulators work with the ~60ish latches that interface with
by nxobject 2y ago
SSI is a very useful (and underdocumented!) RPi feature - it’s how socket-compatible Raspberry Pi 68k emulators work with the ~60ish latches that interface with the 68k bus.
- sitkack 2y agoFascinating! https://github.com/captain-amygdala/pistorm https://github.com/captain-amygdala/pistorm Oh, this is Pi 3A emulating a 68030, not a RP2040, I'll keep looking. > General Performance with the current use of Musashi as the 68k CPU emulator is somewhere around a 100-125MHz 68030. https://github.com/kstenerud/Musashi https://github.com/kstenerud/Musashi Emulating a 128k mac with an RP2040 (using Musashi) https://github.com/evansm7/umac https://github.com/evansm7/umac
- nxobject 2y agoOh, you're right – on the larger-footprint Pis (the first project) they use _SMI_, which is a 16-bit parallel interface.