Need to reset veronica regs when 65816 is reset
Veronica should be able to change the semaphore too.
Disable err_i, with that high cpu freezes on rdy dropped. Re-reading example it was held low there.
Board has CE2, not CE_N connected to this pin. So need to use 1 to enable sram.
Moved memory timing bridge inside slave_timing, its an internal detail really
70ns accuracy is not enough for reliable Atari bus sampling, use faster clock we are already using for sram
Simulated and repaired 6502 bus and sram bus
First cut implementation of veronica clone for ultimate cart - does not work yet, but getting close. Project to try out Rob Finchs 65816 core.