Questions tagged [pascal]

For questions regarding the use or installation of the Pascal language on retrocomputers.

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Why did MS-DOS applications built using Turbo Pascal fail to start with a division by zero error on faster systems?

On faster MS-DOS systems, it wasn't entirely uncommon for applications built using Borland's Turbo Pascal to fail to start, and (before exiting back to the command prompt) to report a division by zero ...
17
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3answers
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x86 as a Pascal Machine?

From this answer by gsg about the usage of certain x86 instructions: Note that the x86 was originally designed as a Pascal machine, which is why there are instructions to support nested functions (...
38
votes
4answers
12k views

Where does this esoteric Pascal operator come from?

In the documentation for an implementation of Pascal for a Soviet computer, I've encountered a very weird language extension. I'll try to translate it: Branching operator (branch) Syntax &...
16
votes
4answers
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Why does Pascal have numeric labels?

Pascal was intended, in part, to be a simple language to implement. Some of the design decisions reflecting this are Declarations/definitions must be given in a strict order (labels, constants, types,...
5
votes
1answer
305 views

Was dynamic type check in Pascal commonplace?

The BESM-6 Pascal compiler I'm experimenting with has a notable difference from Standard Pascal: formal arguments of formal parameters-procedures or functions are not specified, but are checked at ...