On 10/04/2010 08:48 AM, KP wrote:
The traditional softcards played very fast and loose with timing margins at best. I'm actually more surprised at the fact that it _ever_ works reliably in a IIGS!So you're saying I need to just use it with a //e?Also, should I anticipate any problems running a TransWarp and a Z80+ simultaneously? Does the speed setting of the TransWarp matter in this regard?
A TransWarp as in Apple 2e? I seriously doubt that will work. The Z80 card shares motherboard memory with the system CPU by stopping the 6502 (ISTR this is via INH\, but that may not be correct). At any rate, the IIe TransWarp does exactly the same thing on a permanent basis so they are not going to coexist very well.
Tony mentioned the need to run at 1Mhz. in another posting. That's a hard requirement for proper functioning of a SoftCard style coprocessor. It truly was a bit of a hardware hack. I have three or four SoftCards and perhaps a half dozen AE Z80+ cards. Some will work in some systems. None of them will work in all of my systems. One more reason to keep on the lookout for an Applicard if you're serious about Apple CP/M. Never found a box that an Applicard wouldn't work in and it coexists with any and all accelerators on both IIe and IIgs - at high speed settings, too.
An Applicard hot-rodded to 8Mhz. and a TransWarp GS make a very snappy combination. I used just such an arrangement for most of my development work "back in the day".
Steve