I am looking to emulate a SH2 board, specifically SH7055. I see that there is already an implementation for SH4, although in places, incomplete from the comment I saw. Especially interrupts.
Compared to SH4, SH2 is simpler in that it has no MMU, so address 0x1000 is exactly that. And since SH4 is backwards compatible with SH2, I already have the necessary translation layer.
My question is probably too broad for which I apologize, but what would it take to patch out the software MMU and focus more on emulating my board's devices such as SRAM and CMOS Flash chips as well the functionality specific to SH7055?