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? --Chuck
