[Coco] Why haven't we got this?!!
Gene Heskett
gheskett at wdtv.com
Thu Jan 23 17:33:08 EST 2014
On Thursday 23 January 2014 17:30:18 Steve did opine:
> Yes, you can write position Independent Code on a Z-80. I've not only
> done it but also wrote object oriented code too.
I must be dumb then, I spent 2 years working on Z80 code for a transmitter
remote control, wishing I could do that. Not that it would have helped that
much, it all ran from eproms anyway.
>
> My Light Pen and Music software was hidden inside the remark of a basic
> line of code. That why you could load and save the drivers with the
> basic program. The code not only have to be position Independent, but
> not include a Zero byte since that would end the line. As I recall, the
> driver where 2K or more in size. It was tricky programming!
>
> Steve
Interesting.
> On 1/23/2014 11:26 AM, Gene Heskett wrote:
> > On Thursday 23 January 2014 14:25:56 iggybeans at comcast.net did opine:
> >> Interesting GUI/OS.
> >> I was never that big of a fan of the Z-80, but I can get the
> >> processors really cheap. A 16 MHz Z80182 costs me $.40 (yes, I
> >> stated that correctly, forty cents). And 33 MHz Z8S180 chips are
> >> also available with a 1mb address range, memory management and DMA.
> >> So the OS does have more potential than NitrOS-9, if only from an
> >> available hardware standpoint.
> >
> > Can this 40 cent cpu do Position Independent Code?
>
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Cheers, Gene
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