Re: [hatari-devel] VBR as a breakpoint condition

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 13/09/2018 à 22:47, Eero Tamminen a écrit :
> Hi,
>
> On 09/08/2018 11:12 PM, Nicolas Pomarède wrote:
> > Le 08/09/2018 à 21:37, Eero Tamminen a écrit :
> > > I've commited this support with 020+ check.
> >
> > there's a small error in your regs_000[] : there's no ISP in the 
> > 68000, only SSP and USP (SSP became ISP/MSP in 68020+)
> >
> > So, 68000 should have USP and SSP ; 68020+ should have USP, ISP and MSP.
>
> I'm using WinUAE CPU register naming, in the WinUAE register dump
> (and sources), there's no SSP for 000, only USP & ISP.

Hi

I think that toni "merged" the different names in a single one to avoid 
too much variables, but if you look at 68000 user manual, you will see 
that there's no ISP in 68000, so I think it would be better to use the 
68000's naming, even if the corresponding variable is different.

>  From the WinUAE sources I also noticed that DFC, SFC & VBR are
> already in 010+, but as there are no Atari machines with 68010,
> I don't think it matters if debugger reg matching misses them
> for 010.

yes, 68010 was some kind of "in between" cpu, some 68020 concepts were 
introduced there, but not all of them. as you say, it shouldn't matter 
as there was no 68010 atari machines.

Nicolas


>      - Eero