[hatari-devel] GEMDOS emulation, what are the legal ST memory areas to write to?

npomarede at corp.free.fr npomarede at corp.free.fr
Wed Nov 25 23:56:42 CET 2009


On Wed, 25 Nov 2009, Thomas Huth wrote:

> On Thu, 26 Nov 2009 00:04:08 +0200
> Eero Tamminen <eerot at users.berlios.de> wrote:
>
>
>> I think we should try to emulate at least the GEMDOS error codes
>> accurately, because that's what even clean programs expect.  Is there
>> any better documentation than just list of error codes, on what error
>> codes one gets in specific kind of situations?
>
> Have a look at the EmuTOS sources since they are based on original
> GEMDOS source code?
>
> Thomas

Or just disasm the corresponding ROM code for these functions :)

Seriously this often proves to not be that complicated (even if the ROM 
is mostly based on compiled C code, not directly written in asm) and you 
will find the corresponding tests (which doesn't mean those tests are the 
same on all ROM revisions)

Nicolas



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