14 Apr
2015
14 Apr
'15
6:40 p.m.
Are you sure that Modula-2 came from the PDP-11? I
don?t remember it there.
The comments in the source for the VAX compiler say it was?
The VAX Pascal compiler was adapted from the ETH Pascal
compiler for the CDC 6000 mainframes;
the generated code from VAX Pascal V1 made this blatantly obvious.
Do you mean VAX or PDP-11? Either way, I'm not surprised - the DEC-10 Pascal was a
modified copy of the 6000 version. Somewhere I have the source for the PDP-10 compiler;
it came from DECUS and DEC never offered an "official" Pascal for 36 bits
AFAIK.
The PDP-11 compiler could have originated the same way, or it could have come via one of
the P1..P4 compiler porting "kits" that came out of ETH. That's one of the
things I'd like to find out.
Do you know where the sources for either might be today?
Thanks,
Bob