Re: [hatari-devel] Truncated PC address value with code running in TT-RAM?

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 29/03/2019 à 23:42, Eero Tamminen a écrit :
> Hi,
>
> After some debugging I found out why disassembly didn't work with LILO.
> It wasn't actually related to LILO, but code running in TT-RAM.
>
> WinUAE core seems to now return 24-bit values for M68000_GetPC() macro,
> although I've disabled 24-bit mode.  With code running in TT-RAM,
> M68000_GetPC() returns values pointing to ST-RAM addresses (which 
> contents happen to be zeroed).
>
> Adding TT-RAM offset to return PC value, shows the correct disassembly:
>      disasm "pc + 0x1000000"
>
> Even WinAUE core function for showing register values shows wrong
> address for the next PC.
>
> Because things still *run* correctly, and I'm pretty sure M68000_GetPC()
> returned earlier correct 32-bit values for code running in TT-RAM, it
> seems that CPU core PC register variable has changed into some kind
> of memory segment offset value.
>
> Nicolas?

Hi

I will have a look ; which cpu were you using  ? Is it the same if you 
use internal disassembler or the external one ?