21 Apr
2016
21 Apr
'16
7:22 a.m.
On Apr 20, 2016, at 9:46 PM, dwight <dkelvey at hotmail.com> wrote:
The RTX-2000 was an of shoot of the NC4000. Even at
10MHz, they could
out compute a 40MHz 80386.
One execution per clock cycle plus possibly using 3 16 bit busses in a single
cycle.
A 4MHz NC4000 could sort 1K 16 bit values in 19.7 milliseconds.
Dwight
?.
On 2016-04-20 1:28 PM, dwight wrote:
(top-post ?. bottom-post ?. AAagh!) :-)
The Harris RTX-2010, in a rad-hard version, was for years the CPU of choice for spacecraft
science instruments from Johns Hopkins APL. Those chips are *all* *over* the solar system!
One of APL's lead SW engineers wrote one of the most widely-used Forth test suites,
partly for that reason.
It?s a pretty nice chip, for multiple reasons.
- Mark
There was a Harris RTX-2000 based accelerator
card around
the 80386 time period.
...Interestingly: "The RTX 2000 is specifically designed to execute the
Forth language"
(https://users.ece.cmu.edu/~koopman/stack_computers/sec4_5.html)
--Toby