Re: [hatari-devel] debugger suggestions

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 26/04/2022 à 20:08, Toni Wilen a écrit :
> > > I am wondering if the following breakpoint conditions can be added:
> > >
> > > 1) break on memory address access rw (b, w or l).
> >
> > This is a common wish.
> >
> > Nicolas?
> >
> > (It would need CPU core to update variables that store last read and 
> > write access addresses, and a bit of code on debugger side to to 
> > support setting breakpoints on their values, and to zero their values 
> > before continuing emulation from debugger.)
>
> UAE redirects memory "bank" that has "memory watch point" configured to 
> debugger routine which checks if access matches breakpoint (address 
> match, size match, data or instruction fetch, data matches, etc..) and 
> then it calls original memory access function. No need to change CPU 
> emulator and introduce performance loss even when break points are not 
> active.

Hi

indeed, that's what I plan to add to hatari, as there's no penalty when 
breakpoint are not used, which is a good thing :)
BTW, does WinUAE support break before memory access and/or break after 
memory access is done (read or write) ?

Nicolas