On Thu, Jun 8, 2017 at 11:30 AM, Jonathan Yuen <[email protected]> wrote:
> Hi All, > > Just talking from memory (and fond memories of ZCPR) I was wondering what > the REX all-RAM mode was. Did it still need the ROM calls to work? If > not, where were the routines for the console i/o? I've been toying with > ordering the cards to see if I could make a REX but there are still a few > months to go before retirement.... > > Of course, an 8085 isn't a z80 but it's certainly worth playing with! > > Jonathan > > [email protected] It is a special REX with a RAM hardware mod for the T102, IIRC. I have one. It may be better to develop on an NEC 8201A or 8300 since it has a built in all-RAM mode. You could also develop in VirtualT. I think Philip Avery did most of the mtcpm work. The REX stuff is tangential. -- John.
