3 Jan
2006
3 Jan
'06
5:24 p.m.
e.stiebler wrote:
Chuck Guzis wrote:
> On 12/31/2005 at 1:19 PM e.stiebler wrote:
>
>> What about very simple 16 bit risc ?
>> 4 bit opcode, 4 bit destination , 4 bit source 1, 4 bit source 2 ?
> You know, there is a small community of folks using FPGAs to implement
> all
> sorts of interesting architectures, including the one you've just
> described. Perhaps it's worth a look...
Yup, the FPGAs are also organized by 4 bits, so
that's why it would be
preferable to use something like that. 20 Bits is bad however, as soon
as you like to have external memory
Ok, I have to correct myself here, as it is completely misleading.
I had the 4input/1output lookup table in mind, in use for an instruction
decoder. Besides of that, yes, one can use an FPGA to do whatever
bitsize one likes ;-)