Re: [hatari-devel] WinUAUE CPU

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 21/11/2023 à 17:56, Nicolas Pomarède a écrit :
> Le 21/11/2023 à 04:09, J.Young a écrit :
> > When tracing, the disassembler has a quirk on the instruction below:
> >
> > jsr (a0)
> >
> > You can see it doesn't show the address in a0.
> >
> > Like for other instructions such as this that shows the effective 
> > address:
> >
> > move.w (a0,$000e) == $00076fa0
> >
> > Is it possible to get a patch to allow the jsr (a0) to show the 
> > address also?
>
> Hi
>
> Would need to check later.
>
> Either it's a bit configuration to tell winuae what to show, or it's a 
> limitation in winuae that doesn't show yet the address content for jsr 
> or jmp

Hi

from what I see in the source for disasm, function m68k_disasm_2() is 
doing this job for some specific opcodes if flag DISASM_FLAG_EA is set : 
rts, rtr, rte, bsr, dbcc, bcc.

but not for jsr or jmp ; unlike above opcodes, jsr and jmp can have many 
different effective addresses, making it less straightforward than bsr 
or dbcc for example.

Toni, is there any reason jsr/jmp are not showing EA with " == $%08X" ? 
Is this on purpose to avoid some problem in the output text ?

Nicolas