[fpc-pascal] Object Pascal operating system

Prince Riley wmarketing3 at gmail.com
Thu Dec 11 21:13:56 CET 2008

I think others to this list may have seen my prior post on how this
'challenge' of writing a OS kernel in Object Pascal could be met using the
Unix/Linux history as a guide.

It probably wouldn't be worth the additional effort needed to write the
entire kernel in Object Pascal in much the same way the neither the Unix or
Linux kernels were written entirely in C.

What would be interesting in a OP/Kernel would be how the a modern
microkernel design could implemented in Object Pascal and the programming
techniques used
to follow the current OS system paradigms (including  data structures).

I'd be interested in how the OP system made the trade-offs in terms of
performance versus size (code/data), how portable it could be (to other
processor architectures) and then a comparison of it speed for various

On Thu, Dec 11, 2008 at 6:16 AM, Skybuck Flying <skybuck2000 at hotmail.com>wrote:

> I'd say if whoever has enough drive to try something like this, simply
>> start by implementing the kernel. Something relatively simple so that
>> your PC can boot using a Object Pascal written kernel. No matter if
>> there is no user interaction, shell or user level programs. Just show
>> that you CAN write a bootable kernel in Object Pascal would already
>> achieve the "wow" factor.
> I have a question about this, relating to what the free pascal compiler can
> actually do ?
> Does free pascal compiler actually implement and support the entire x86
> instruction set/registers ?
> Since "application space" is different from "kernel space".
> For example:
> asm
>   // full instruction set support possible ?
> end;
> Bye,
>  Skybuck.
> _______________________________________________
> fpc-pascal maillist  -  fpc-pascal at lists.freepascal.org
> http://lists.freepascal.org/mailman/listinfo/fpc-pascal
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