Re: [hatari-devel] FPU disassembly fault

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 09/11/2014 22:03, Douglas Little a écrit :

>     With next winuae cpu core, I get this :
>
>     f200 6380                FMOVE.L FP0,D0
>     f200 43a8                FSUB.L D0,FP7
>
>     So, as the "uae" disasembler use the same routine as the opcode
>     decoding, it's normal that you get the same correct result.
>
>     But are you sure of your exemple ? you wrote "fp7,d0", but it seems
>     it's fp0 if you give 6380.
>
>
> Yes it was copied/pasted from Hatari's output window, and the sample is
> using fp7 for all temporaries.

I checked in latest winuae code, and it outputs "FMOVE.L FP0,D0", which 
is wrong. Looking at the disasm code, I saw a bug in the FP register 
computation, so I sent a patch to WinUAE's author.