Free Pascal DOS: Is LFN required for work?
lazarus / 68-Other OS

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Milsa · 2024-11-09 08:38

I installed FP with LFN in DOSBox-x. I copied it to CF card for Pocket
386 with DOS 6.22. It is necessary LFN for work with it? Bacause I use
Dos Navigator without LFN. Necromancer Dos Navigator doesn't work on
this computer. Copying files may break LFN in this version of DN. I
don't find any file with LFN in Free Pascal.

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marcov · 2024-11-09 11:43

Usually FPC is considered to be usable without SFN, but it is hard to
compile (bootstrap) FPC itself or build releases without LFN. Maybe
older Dos users used Win9x anyway.

I haven't heard much news on the practicalities of the dos front for
daily use in recent years.

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Milsa · 2024-11-09 13:06

Thank you for your answer.

DOS is for retro projects. No for daily use.

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Milsa · 2024-11-09 13:18

Is it possible to tell FP to also search recursively in subdirectories
when looking for libraries for programs? I can't run the examples
without putting the libraries all in one directory.

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marcov · 2024-11-09 13:40

For precompiled units and unit source, yes:  Append a * to the end of
the path e.g.

-Fuc:\fpc\units\i386-go32v2\*

(preferably in the similar line in fpc.cfg)

Libraries (external .a files), not that I know.

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Milsa · 2024-11-09 13:57

I think units, yes. Thank you.

I just found out that FP doesn't work on the Pocket 386. I got a
SIGILL error.

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marcov · 2024-11-09 15:54

My guess would be that it is the floating point requirement.  So
probably you need to install/configure the emu387.dxe from djgpp.

It used to be in the dos distribution iirc.

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Milsa · 2024-12-27 08:57

I tested FP on 86Box emulator. I set 80386DX + 80387.

This is bug report during FP IDE start:

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mika · 2024-12-27 12:22

Quote from: Milsa on December 27, 2024, 09:57:36 amI tested FP on
86Box emulator. I set 80386DX + 80387.

You have to build fpc by yourself (setting -Cp80386 -Op80386). By
default fpc is built for Pentium processors.

Building fpc dos version is challenging to say the least (but
possible). 86Box emulates actual speed of processor so you are in for
a long run.

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mika · 2024-12-27 12:37

Quote from: Milsa on November 09, 2024, 09:38:31 amIt is necessary LFN
for work with it? Bacause I use Dos Navigator without LFN.

To build fpc LFN support is required. To run fpc or fp LFN is not
required.

You might check out Dos Navigator 2 that do have LFN support in it
.Could be found in FreeDos packages. And you sill have to have LFN
driver if you use MSDOS 6.22.

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Milsa · 2024-12-27 17:14

Thanks