68k homebuilts

[Sridhar Ayengar]

bfranchuk at jetnet.ab.ca wrote:
> Sridhar Ayengar wrote:
>> John Floren wrote:
>>> After doing some looking I thought I'd go with 68020 if I were to do
>>> 32-bit, or 68000 for 16-bit. I may take Tony's excellent advice and
>>> try something even simpler first, if I can get my hands on the Art of
>>> Electronics books... they're on Amazon, I'll probably just have to
>>> buckle down and shell out the money.
>>
>> My vote is for processor-from-scratch.  Designing and building a 
>> simple RISC architecture into a CPLD is still one of the most fun 
>> exercises I've ever undertaken.
>>
>> BTW, my machine runs FORTH.  Most of the FORTH environment consists 
>> of, as has been suggested as a good method, off-the-shelf FORTH 
>> primitives written in FORTH.
>>
>> Peace...  Sridhar
>>
> How do you have RISC from a CPLD since RISC implies a large register stack?

Not necessarily.  That's one possible advantage of a RISC design, but it 
isn't necessary in order to be a RISC.

Peace...  Sridhar