[fpc-other] Original Version of Photoshop Was Written in Pascal; Source Released

[Mark Morgan Lloyd]

On 25/05/18 00:45, Ralf Quint wrote:
> On 5/24/2018 1:49 PM, DaWorm wrote:> Wonder if it was still a p-code 
> compiler back then, as it was based on > Microsoft Pascal, which was 
> based on UCSD Pascal.>> http://www.edm2.com/index.php/Microsoft_Pascal>> 
> Jeff.Microsoft Pascal was NOT based on UCSD Pascal. At least I seriously 
> doubt it. I used UCSD Pascal back in those days, in various forms (Apple 
> ][ Pascal, HP Pascal , UCSD Pascal on Sage, UCSD Pascal on PC) as well 
> looked into MS Pascal for a company I worked for,as it was a direct 
> binary compiler. And it had enough quirks that UCSD Pascal programs that 
> could work on all the various UCSD derived version would not even 
> compile. Now that is about 35 years ago, so I don't recall any details 
> anymore...

I agree. The major intersection of UCSD Pascal and MS was that they 
could frequently be seen on the same Apple II system... MS made a Z80 
card that allowed you to run CP/M-80, and it was very common to boot 
into one or the other. The P-System was actually a fairly late arrival 
for the PC and typically had a custom filesystem, while MS Pascal was 
"just another language" under DOS etc.

-- 
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]