Re: Alternatives to C: ObjectPascal, Eiffel, Ada or Modula-3?

[Patricia Shanahan <pats@acm.org>]

Patrick Scheible wrote:
> Adam Beneschan <adam@irvine.com> writes:
> 
>> On Mar 24, 2:27=A0pm, p...@informatimago.com (Pascal J. Bourguignon)
>> wrote:
>>
>>>> True. =A0But P-code was for student use, not production, especially not
>>>> production in an application where execution time was critical.
>>> This is wrong.
>>>
>>> P-code was designed, and used, exactly like the JVM is today. =A0There
>>> even were developed processors that executed directly P-code, natively,
>>> like we have JVM implemented in hardware too.
>> I think Patrick is essentially correct; the Wikipedia entry for "UCSD
>> Pascal" says:
>>
>> "The University of California, San Diego Institute for Information
>> Systems developed it in 1978 to provide students with a common
>> operating system that could run on any of the then available
>> microcomputers as well as campus DEC PDP-11 minicomputers."  [This was
>> before the IBM PC came out, so I think "then available microcomputers"
>> meant Terak and maybe Apple II; perhaps there were some others.]
> 
> I encountered it on a CP/M system.  S-100 bus, Z80 processor.  Apple
> II's that I saw didn't run it, but I wouldn't swear that it was
> impossible.

Apple Pascal was based on UCSD Pascal. I ran it frequently on my Apple
II. According to the reference manual, it required 48 KB memory, at
least one Apple II disk drive, and the Apple Language System.

Patricia