7 Jun
2002
7 Jun
'02
11:04 p.m.
I don't see an HCF in the Mot listings of their
instruction set.
I doubt it would be listed...
I've heard about this fiction over several decades
now, and, surely, it
must be clear to you that there's no way the microprocessor can cause
that effect without the aid of external hardware.
I've actually seen it in operation, though I've not seen it smoke a
chip... I have one of the Heathkit Microprocessor Trainers (ET-3400)
and actually tried the instruction... and yes, you can see the address
lines incrementing (one of the exercises is to setup LEDs to watch
either data or address lines).
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | email: gentry at zk3.dec.com (work) |
| Unix Support Engineering Group | mbg at world.std.com (home) |
| Hewlett Packard | (s/ at /@/) |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 (DEC '77-'98) | required." - mbg KB1FCA |
+--------------------------------+-------------------------------------+