Re: ALS Z-Card

[mojoehand <jgray@zianet.com>]

On Nov 3, 12:13 am, "RedskullDC" <redskul...@oohay.moc.ua> wrote:
> "mojoehand" <jg...@zianet.com> wrote in message
>
> 11342068-9a14-427c-bbf8-7915b2866614@q26g2000prq.googlegroups.com">news:11342068-9a14-427c-bbf8-7915b2866614@q26g2000prq.googlegroups.com...
>
> >I just tried a Z-Card in a ROM3 IIgs and even at slow speed, it won't
> > boot CP/M. It starts to boot and hangs. It works fine in my IIe. Not a
> > huge problem, but I am curious as to why it won't work in a IIgs.
>
> Will take a wild stab and say probably the Z-Card flavour of CP/M
> doesn't take care of/turn off the 65816 interrupts before it switches
> to Z80 mode.
>
> Red

I'm using Softcard CP/M. I don't have the version of CP/M that came
with the Z-Card. Of course, this doesn't mean that the Softcard CP/M
disables the interrupts either. Since the Softcard board I have
doesn't work, I can't test this. I'm going to dig up a handfull of TTL
chips and see if I can get the Softcard board working.