ultraembedded

I think I could add support for the first ‘scan’ fairly easily, but full support maybe more tricky. It’s not near the top of my list of things to do,...

I see this too. The reason the game gets stuck is that it trashes the beginning of main RAM by writing past the 2MB window: [DMA3] CDROM -> RAM @...

Good question! I’ve been thinking about this recently... The Rocket and WD SweRV cores use flops for the BTB. Those cores and this one use 28-32 fully associative BTB entries....

Can you attach the ELF and I’ll take a look.

Ok. Your ELF is compiled and linked against newlib. This means that the entry point and memory layout are different, and it will also take quite a long time to...

I missed the notification on this one. I do have a version which has what you are asking for. I’ll look into releasing it this weekend.

Good comments! You are right, I essentially support two SBI bootloaders - my lightweight fpga one, riscv-linux-boot, and OpenSBI. The reason for riscv-linux-boot is that it has atomic instruction emulation...

Trial and error coupled with some educated guesses (any many test bitstreams)!