On 07/25/2016 10:14 PM, Hegedűs István wrote: > Hi, > > Wow these look large in the real hardware. Craignell looks better > however I have checked its specification and for Craignell 1 I could not > find information on the vcc and gnd pin configuration possibilities. > Craignell 2 is an overkill and it doesn’t support pin 5 for vcc which > the 8501 would need... I believe the 8501 could be implemented in a > Craignell 1 with an XC3S100E. The XC3S500E has more than enough > resources for a whole C16 with 16k RAM but it is again an overkill. > > By the way while testing FPGATED I have noticed that certain demos > identify it as an emulator... I have not yet debugged it however I > believe the demo identifies it via the CPU (illegal opcodes?). Although > the 6502 core I am using is from fpga64 and implements the illegal > opcodes. It would be good to test FPGATED with a real 6502/8501... There could also be something about the TED emulation that doesn't quite work yet. Maybe the more obscure things like the writable X- and Y-counters not behaving 100% correct yet? Gerrit Message was sent through the cbm-hackers mailing listReceived on 2016-07-25 21:00:02
Archive generated by hypermail 2.2.0.