10 Oct
2013
10 Oct
'13
3:14 a.m.
"Alexandre Souza" <alexandre.tabajara at gmail.com> writes:
"Is it possible to find an ULA chip for my blown
Spectrum +2B?"
Well, you could build one. ;-)
Chris Smith's book on the ULA describes how it works in great detail
(it's really very good -- well worth reading):
http://www.zxdesign.info/book/
He developed this by first building a Spectrum ULA equivalent from
74-series logic chips (!!), then making a CPLD. See his web pages:
http://www.zxdesign.info/indexPage.shtml
And there's an open-source FPGA implementation:
http://opencores.org/project,zx_ula
In practical terms I suspect you're better off looking for someone who's
got a +2 with a broken keyboard/tape drive/ratty case...
--
Adam Sampson <ats at offog.org> <http://offog.org/>