Hello, 2018-01-10 18:03 GMT+01:00 Karoly Balogh (Charlie/SGR) < char...@scenergy.dfmk.hu>:
> Hi, > > On Wed, 10 Jan 2018, Matias Vara wrote: > > > Thank you very much Karol, I completly missed this point during the > > development of my kernel (Or maybe I had in mind sometime ago but I > > forgot it)It was only when I decided to play with -02 that all these > > issues arrised. > > BTW, your code (as shown by the parameter passing in your assembler dumps) > seems to use the Microsoft x64 calling convention, which declares RSI > value as callee-saved, and then your code overwrites that without saving. > > So the fact that your code overwrites it, could be the culprit. (And then > the OUTSD instruction also increases RSI by 4, so even if that MOV > wouldn't be there, you'd still need to save it.) > > Also note that the 64bit x86-64 ABI is very different between Linux and > Windows, for example. > > Thanks, I am going to review all the assembler code. > BTW, developing a kernel in Pascal is cool... ;) > It is indeed :) Matias > > Charlie > _______________________________________________ > fpc-pascal maillist - fpc-pascal@lists.freepascal.org > http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal >
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