Search found 262 matches

by Josef Templ
Sat Jun 24, 2023 7:49 am
Forum: Component Pascal
Topic: How to define the size of an array during runtime?
Replies: 3
Views: 31635

Re: How to define the size of an array during runtime?

you need to use a dynamic array, i.e. a POINTER TO ARRAY. Then you can specify the size with NEW.
In Java it is exactly the same but the syntax differs slightly😀

Josef
by Josef Templ
Thu Mar 30, 2023 8:14 pm
Forum: BlackBox Framework
Topic: Team development
Replies: 2
Views: 29468

Re: Team development

As far as I know, Oberon microsystems did not use such tools when developing Blackbox (Oberon/F), i.e. the versions, backups, releases etc. have been maintained manually. The work was split in very big chunks between highly talented individuals, one working on the i386 compiler, one on the Motorola ...
by Josef Templ
Thu Mar 10, 2022 4:43 pm
Forum: News
Topic: ALERT: VRS support terminated by hosting provider
Replies: 4
Views: 38851

Re: ALERT: VRS support terminated by hosting provider

EDIS fixed the reverse DNS setting (PTR record) for our new IP address.
So, email should be working again.

- Josef
by Josef Templ
Sat Mar 05, 2022 8:48 am
Forum: News
Topic: ALERT: VRS support terminated by hosting provider
Replies: 4
Views: 38851

ALERT: VRS support terminated by hosting provider

ALERT Our hosting provider terminated support for VRS, which is the kind of virtual server blackboxframework.org was built on. The center is trying to arrange for a new plan probably based on KVM. However, there can be service interruptions until everything is set up again and data is migrated to th...
by Josef Templ
Sun Nov 14, 2021 1:41 pm
Forum: System
Topic: DLL memory model
Replies: 2
Views: 14664

Re: DLL memory model

If I remember correctly, modules are marked as "unusable" when unloaded. If a procedure variable is called that calls such a code address, a trap is generated and it is discovered and reported correctly that a call to an unloaded module has been made. However, the physical memory pages are...
by Josef Templ
Sun Sep 26, 2021 6:23 pm
Forum: Feature
Topic: Strings.IntToStringForm: convert a number to Oberon format
Replies: 2
Views: 32670

Re: Strings.IntToStringForm: convert a number to Oberon form

Sorry I don't understand your problem. You can optimize your procedure to PROCEDURE WriteHex(i: INTEGER); VAR minWidth: INTEGER; BEGIN minWidth := 1; W.WriteIntForm(i, TextMappers.hexadecimal, minWidth, "0", FALSE) END WriteHex; and have the same behaviour. - Helmut Helmut, I think this i...
by Josef Templ
Thu Sep 09, 2021 7:18 pm
Forum: BlackBox Framework
Topic: SYSTEM.TYP - Why is it even there?
Replies: 1
Views: 14087

Re: SYSTEM.TYP - Why is it even there?

according to PSI it seems to me that TYP(v) gives you the dynamic type of record variable v (or some p^) while ADR(T) gives you the type of the statically known type T.

- Josef
by Josef Templ
Wed Oct 14, 2020 9:29 am
Forum: Bug
Topic: Compiler trap in Real64 op ADR(x)
Replies: 13
Views: 25248

Re: Compiler trap in Real64 op ADR(x)

For a permanent correction, why not amend CheckForm? It would be the most 'straight' logic: CheckForm checks that the format of data is correct. It is correct to convert a Pointer to a Real64, and that't what CheckForm should return. Amending other procedures looks as a workaround to me. PROCEDURE ...
by Josef Templ
Mon Oct 12, 2020 9:37 am
Forum: Bug
Topic: Trap on [code] procedure call
Replies: 6
Views: 16429

Re: Trap on [code] procedure call

There would also be the alternative of treating structured value parameters as VAR pars, i.e. to pass the address in eax.
by Josef Templ
Fri Oct 09, 2020 11:41 am
Forum: Bug
Topic: Trap on [code] procedure call
Replies: 6
Views: 16429

Re: Trap on [code] procedure call

the first parameter is passed as register eax but in case of a RECORD value parameter this is not possible. So it should be rejected. I would suggest to reject it in the backend, though, because code procedures are highly platform specific. see DevCPC.Call: Result(x.obj.link, tag) (* use result load...