🚀 go-pugleaf

Philip Koopman Jr. did a good job discussing stack machines in "Stack
Computers, the New Wave."  It's good reading.  :)


mchst12@cislabs.pitt.edu (Mark Hahn) writes:

> Stack machines always have compact instructions, since for most
> instructions, all three operands are implicit, which saves 15 bits per
> instruction.  It's conceivable that such a machine would pack 4
> instructions into a word, even with riscy instruction formats. The rest of
> the machine would be 32bits wide, of course.

Chuck Moore's MuP-20 packs four instructions per word; a 20 bit word.  There
are only 32 instructions.  At an expected 7-40 MIPS, with certain loops of
200 MIPS, it has potential to be a hot chip for embedded applications.  :)

I'm not sure what the current status of the chip is.

--

Nick_Janow@mindlink.bc.ca