[Sorry for the delay in replying to this - I've been off with flu and not really up to doing very much!]
Andrew Collier wrote: > Just wondering.... will WinCoupe have the swame option as SimCoupe > to emulate a Spectrum instead of a Sam? I put it back in a few weeks ago... > And if it does, will it still have all the Sam's instruction > timings and whatever? Yeah, everything's the same as SAM mode 1, except that it's seen as a real ROM chip so it runs uncontended - that might actually even make it even less useful than an emulator running in SAM mode as it's running too fast! It certainly doesn't use a Z80 clock of 3.5/3.54MHz or anything fancy like that! > Would it make the code much simpler to take the feature out? It wasn't really much to add back in, so it's easy to take out - the only changes made were: - Use the Spectrum ROM image instead of ROM0 - Use a different keyboard table map so PC keyboard symbols locations are correct for the Spectrum - Border colour defaults to white on Z80 reset - SAM memory paging is prepared so LMPR and HMPR don't overlap. > I'm just thinking it perhaps isn't massively useful to include > direct support for the Sam to emulate a Spectrum, when you can >achieve that by loading a Spectrum emulator in the virtual Sam machine Yeah true, and Martijn's excellent Spectrum emulator certainly does it a lot better! I used it for the first time recently, and it's a long way on from the simple write-protected ROM method I used to use! Alternatively, it's even better to use a 'real' Spectrum emulator (like Z80 v4.0), or even a real Spectrum if you're lucky enough to own one! I suppose the Spectrum feature doesn't really belong in a SAM emulator anyway. I can't imagine replacing ROM 0 with a Spectrum ROM chip will work on a real SAM anyway, as LMPR/HMPR are zero initialised on reset and therefore overlap. > no disk support, no tape support. Literally all you could do was > type in a few lines of BASIC (without the symbol-shift key). Well, there's better keyboard support in WinCoupe, but no disk or tape support. I didn't really think about it being so useless until you mentioned this! I guess it should probably be taken back out, tho the keyboard mode might be worth keeping... Anyone any thoughts/preference? Si
