[TUHS] speaking of early C compilers
clemc at ccc.com
Tue Oct 28 22:42:12 AEST 2014
On Tue, Oct 28, 2014 at 8:22 AM, Ronald Natalie <ron at ronnatalie.com> wrote:
> Problem with the 60 was it lacked Split I/D (as did the 40's).
A problem was that it was 40 class processor and as you says that means it
was shared I/D (i.e. pure 16 bits) - so it lacked the 45 class 17th bit.
The 60 has went into history as the machine that went from product to
"traditional products" faster than any other DEC product (IIRC 9 months).
I'm always surprised to hear of folks that had them because so few were
I've forgotten the details nows, but they also had some issues when running
UNIX. Steve Glaser and I chased those for a long time. The 60 had the HCM
instruction sequences (halt a confuse microcode) which were some what
random although UNIX seemed to hit them. DEC envisioned it as a commercial
machine and added decimal arithmetic to it for RSTS Cobol. I'm not sure
RSX was even supported on it.
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