woodelf wrote:
e.stiebler wrote:
What about very simple 16 bit risc ?
4 bit opcode, 4 bit destination , 4 bit source 1, 4 bit source 2 ?
That is a simple design. Still any bitslice design is a muilti-board design
so for me, a more powerful CPU is larger word length than 16 bits.
20 bits does have two advantages in hindsight. 1) Good small computer
adddress range. 2) reasonable integer size -512k...512k
So just go for the 24 bits, like some Motorola DSP's,
Or just go the whole way to the 32 and make a VAX ;-)
(8 x 2901, now you have a multi board design, and enough heat )
(the idea of 36 bits I write in the next email ;-) )