Re: [hatari-devel] WinUAUE CPU

["J.Young" <jyoung8299@xxxxxxxxxx>]

On 11/21/23 15:51, Nicolas Pomarède wrote:
> 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
Thanks for checking the code Nicolas, just wanted to clarify. From my 
previous message if you didn't see it:

> Ok, thank you for checking into it.
>
> Just to note,  'jmp (a0)' has the same issue.  However with a 
register offset, it shows the effective address i.e. 'jmp (a0,d0.w,$00) 
== $0001588a'.

jmp does show the effective address with a register offset, just not the 
case "jmp (a0)'.  I assume jsr is the same way?

Jeff