On Fri, 16 Apr 1999, David C.S. Prior wrote:
> do > Well, I'm sure that your correct in that most Z80s only have <= 64k,
> do > but there are some exceptions, such as the TRS-80 Model IV and the
> do > Commodore 128 (as the name implies).
>
> There are many others, including the ZX Spectrum 128, +2 (the model I
> owned)& +3. This could use the extra memory for a RAMdisk (it was
> reffered to in the manual as a Silicon Disk).
>
> Also relatively popular here (Scotland) was the Amstrad PCW series, they
> ran CPM and came with a word processing package called locoscript (you
> had
> to be "loco" to use it). There was a Drive 'M' stored in memory. This was
> around 100k in size on a 256k machine.
>
> sk > One way might be to implement a bank switching model for embedded Z80
> sk > or upgraded computers. This means to put the reference scheme into
> sk > the kernel
>
> do > Of course, there's no reason you can't go ahead and pick a bank
> do > switching scheme, my point is simply that I doubt it will be
> do > compatable with other machines that don't happen to use the same
> do > scheme.
>
> If anyone is seriously considering implementing anything unix-like on a
> Z80 machine then I'd like to help. The only drawback is that I'm not that
> good (read appaling) programmer. Although I sold my Spectrum and my mum
> her PCW8256, I can emulate a spectrum under DOS or linux.
>
> Thanks,
>
>
> David C.S. Prior
>
I have a PCW8256, a PCW8512, and a spectrum ZX +3.
I'd love to be able to use tham for something.
Isn't the Z80 still quite popular in the embeded systems world?
Luke(Boo) Farrar.
