thisisamigaspeaking wrote: ↑Tue Dec 13, 2022 4:50 pmJust looking into it quickly it looks like none of the Verilog or VHDL anyone is using anywhere can be copyrighted in the US if they are considered schematics, they are not copyrightable. So anyone is free to use them (barring patents)? Is that correct?
Possibly.
The GPL applies to software. The actual Verilog and VHDL code that comprises the cores describes hardware and is not covered under it.
The MIPS cpu in the PSX is a 900k transistor chip for comparison. We can have a much more compatible core than what we currently have with ao486. It will be a LOT of work though for whoever takes on that project.
Maybe a faster performance fork of this core isn't as crazy as it sounds since the ao486 core is slower than the PCXT when all the cache is disabled.
Computer trackballs aren't really a great substitute for an arcade trackball.
Yes, the MSX1 core that was released is based on Philips VG8020 hardware and can load carts and floppies. The other core is a port of the 1chipMSX FPGA system that was originally released in 2006 and is based around MSX-2 hardware.
A ribbon cable is unlikely to work here, maybe a right angle adapter might work?
