On 4/10/2017 4:42 PM, Chuck Guzis via cctalk wrote: > On 04/10/2017 11:41 AM, Dave via cctalk wrote: >> I have a Harris RTX-2000 based system control board for a long >> defunct system. The board worked when removed more than 20 years ago >> in the mid 90's. The RTX-2000 is a stack-based processor designed >> for running FORTH. I think it was designed by Phil Koopman based on >> his graduate work. The board is a 16-bit ISA board. It was part of >> an MRI system that ran a version of MPE forth with a C-to-FORTH >> compiler (actually a C-like variant) that spits out a 16-bit FORTH >> variant with some embedded RTX-2000 code. > > That is a bit of a surprise--in my experience it takes very little code > to support Forth on any processor--that someone would build a dedicated > chip for it is unusual. > > Were there any microprocessor chips that attempted to mimic the > Burroughs B5000 series and natively execute Algol of any flavor?
No, but Western Digital implemented the UCSD P-machine in hardware selling it as the Pascal Microengine. I always wanted on of those but I fear few have survived the scrap yard. bill
