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Author Topic: I bet your z80 didn't do this...  (Read 9921 times)

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Offline Agafaster

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Re: ;-)
« on: December 18, 2006, 12:50:42 PM »
Mmmm Z80! top CPU!

I toyed with the idea of a homebrew computer based on one of those. ever since my GCSE Electronics project in 1988!
(I had to do something less ambitious - an Audio ADA for my speccy - didnt work!)
I am now going to resurrect the idea (as far as possible with 3 kids, a wife :roll:, two amigas to play with, and sorting the wimmins' problems with the house PC!)
I kinda got stuck on getting the RAM interface between CPU and Video sorted out (trying to prevent these from clashing), but I have ideas there...
\\"New Bruce here will be teaching Machiavelli, Bentham, Locke, Hobbes, Sutcliffe, Bradman, Lindwall, Miller, Hassett and Benaud.\\"
\\"Those are all cricketers, Bruce !\\"
A1XE G3/800MHz Radeon 7000 512MB
A1200 030/25MHz 8MB
 

Offline Agafaster

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Re: I bet your z80 didn't do this...
« Reply #1 on: December 18, 2006, 02:47:17 PM »
Quote

Karlos wrote:
Pity the homebrew guys don't use one of these... you can get a linear 16MB address space on those and they are z80 code compatible.


I saw that ! (I've been furtling too ;-) )
kinda nice - not having to fart around with paging protocols and memory maps!

Quote

I was toying with the idea of using a Z180 as an expansion/upgrade experiment for a spectrum. It has a builtin paged MMU for up to 1MB of external memory and other enhancements.


I've had those what if... moments meself.

can you imagine Centipede on a 50MHz speccy ? :-o :lol: :crazy:

Quote
Only problem is, no time :-(


me neither :shrug:
\\"New Bruce here will be teaching Machiavelli, Bentham, Locke, Hobbes, Sutcliffe, Bradman, Lindwall, Miller, Hassett and Benaud.\\"
\\"Those are all cricketers, Bruce !\\"
A1XE G3/800MHz Radeon 7000 512MB
A1200 030/25MHz 8MB