Re: [hatari-devel] New version of WinUAE's cpu core

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 23/11/2014 19:42, Eero Tamminen a écrit :
> Hi,
>
> On torstai 20 marraskuu 2014, Nicolas Pomarède wrote:
> > A test version of the new cpu core based on WinUAE 2.8.1 is available,
> > at last :)
>
> This is awesome news! :-)
>
>
> > You can get it here : http://download.tuxfamily.org/hatari/test/
> >
> > The zip file contains 2 exe for windows build in 32 and 64 bit mode
> > using the WinUAE's core.
> >
> > It also contains the source tree for Linux/OSX users. Just run :
> > ./configure --enable-winuae-cpu && make
>
> The sources are branched from older Hatari version and don't contain
> version history which makes reviewing the changes impossible.
>
> I noticed that you had now "cpu" and "cpu_old" directories in
> sources.  If old CPU core version would still work, maybe you
> could commit the new core right away into Hatari sources?

Hi

this is on purpose, my working branch is a bit of a mess, so I stripped 
everything to just post the sources. cpu_old is just for me when I need 
to compare old winuae and new winuae (I could have removed it).

Since I started on this, HG changed to much, it will create too much 
conflicts to do some automatic merges, so I will manually apply the new 
cpu to a recent HG tip.

All in all, don't bother too much about the sources' state at the 
moment, it will be clearer when I commit to HG, but for that I'm waiting 
for report of possible obvious regression when using the binary, as I 
want the main repo to be as stable with this new version as it was before.

> What features in existing cores are still missing from the new core?

Don't see what you mean. Existing core is much less precise, the new 
core doesn't necessarily requires more options in the UI, it's much more 
some internal improvements with more or less the same API.

> What kind of changes are needed to Hatari, outside of the cpu*/
> directories (patch)?

Not that much, mainly in m68000.c to handle cpu changes and save/load 
snapshot.
Apart from that, this basically replaces all the files in cpu/

Nicolas