| Re: [hatari-devel] Relocation warning + program failing when run from GEMDOS HD |
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On Samstag, 24. September 2022 19:51:46 CEST Eero Tamminen wrote:
> it's
> possible that current GEMDOS HD code does not handle e.g. relocation
> errors correctly.
TOS does not check for errors in the relocations either. And IMHO there is not
much you can check there, other than checking that the bytes are not odd (but
then you would get an address error anyway when trying to write to an odd
address) and that the relocations don't try to patch anything beyond the
program end, but that does not seem to be the case with this demo.
Only thing that i noticed, that there are 66 bytes of garbage after the end of
the relocation table, all of which are 0.
It does however catch the GEMDOS Fread call, and does a tst.w 2(a7) when that
returns. Not sure what's the purpose of this, but maybe that is where things
go wrong.