--- Vincent Slyngstad <vrs at msn.com> wrote:
The idea, I thought, was to re-implement some of the
old
CPU chips with FPGAs, then wire the FPGA into the
vintage
(or replica) gear to get/keep it working.
I do believe that just implementing an FPGA CPU and
hooking
it straight to your LCD and keyboard is essentially
equivalent
to running a software emulator (only much slower).
Vince
I am cognizant of the difference. I just don't
understand why either one could or should be
considered dangerous. Any solution is a good one. The
mechanical components of a floppy drive can be
replaced, and hence the feel of using something old
can be preserved (hard drives are a tad tougher
though). Tubes are tough to replace. Basically
everything else besides the electronics is very
replaceable. So when you get to that point, what do
you do? Either use discrete chips or an FPGA thing. I
have not had the time to make one working machine out
of the 2 Mindsets I've managed to get my hands on
(presumably both have problems). But I did peruse
their innards, and there's 2 things that look up at me
with piercing stares - custom VLSI chips (video and
sound). I want as far as to call the CEO and others of
the defunct company, hoping to obtain information on
their makeup (I was told the Mindset video processor
was the first chip in the world to implement the
BitBLT function). No dice. So I guess I'm going to
have to melt these down one of these days :O. Probably
not anytime soon, but what would be more spectacular
then actually producing a drop in replacement for one
or both of these things?
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