30 Jan
2002
30 Jan
'02
9:15 p.m.
> The only use of the vax11's pdp11
compatibility mode that I've ever
> heard of was to run RSX-11 binaries under VMS.
Another was the RTEM RT11 emulator which gave you (by default) a PDP11/40
with EIS running RT11 V5 (IIRC) emulated on the Vax. I used this at DEC
for sysgens for my PDT 11/150 and wrote out the floppy on the RX01
console floppy with FLX/Exchange.
I think VMS 1.0 used it because it was not really ready to ship (what a
suprise). The RCS VAXgeek said that some old PDP-11 code was
kludged in with a big hammer (and the compatibilty mode) to get the early
VMS to work. The kludges were dropped shortly afterwards.
Well, the kludges were dropped slowly since a lot of the utilities were
running in compatibility mode up through VAX/VMS 3.x.
When we hit 4.x (IIRC) MCR SYE and FLX went away to be replaced with
Anal/error and exchange.
William Donzelli
aw288(a)osfn.org
Bill
--
d|i|g|i|t|a|l had it THEN. Don't you wish you could still buy it now!
bpechter@shell.monmouth.com|pechter@ureach.com