31 Jan
2022
31 Jan
'22
1:59 p.m.
Am 30.01.2022 um 21:09 schrieb David Barto:
> On Jan 30, 2022, at 10:08 AM, Dan Stromberg <drsalists(a)gmail.com> wrote:
> On Sun, Jan 30, 2022 at 8:58 AM David Barto <david(a)kdbarto.org> wrote:
>
> Yes, the UCSD P-code interpreter was ported to 4.1 BSD on the VAX
> and it ran natively there. I used it on sdcsvax in my senior year
> (1980).
>
>
> This reminds me of a question I've had percolating in the back of my
> mind.
>
> Was USCD Pascal "compiled" or "interpreted" or both?
[..]
UCSD Pascal was “compiled” into the byte code of the
interpreter. I
wrote a P-code assembler in my senior year as part of the compiler
class. Java started out doing the same thing and over time native code
generation was added in gcj.
Just for the record: There has been the WD9000 chipset which is actually
an LSI-11 with different Microms which could run the P-code (of UCSD
Pascal III) natively as it was its machine code. So this makes a
distinction of interpreted vs compiled even more fuzzy.
Holger