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

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Hello

A test version of the new cpu core based on WinUAE 2.8.1 is available, 
at least :)


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

It took much more time than expected to adapt our old version based on 
WinUAE 2.3 to this new version, because many things changed internally 
to get more accuracy in cycle exact mode, some functions kept their name 
but had different behaviour :(, some functions even had different 
versions based on parameters' type (C++ overloading) and needed to be 
adapted to C (having similar names for different functions is not really 
helping when working on such low level code) , ...

This required lots of changes to WinUAE's code, some bugs were also 
fixed (and forwarded to WinUAE).

But all in all, it should be for the good, this version implements some 
more low level depiction of the CPU's mechanism, full MMU emulation (for 
68030 and 68040/60), more accurate FPU and more to come.

Given all the changes, I'd like people to test this version before 
committing it to our mercurial repo. I tested it successfully with 
various tos, STF,TT, Falcon modes, RAM, compatible or cycle exact mode 
and so far all those combinations are working under TOS.

But I only tested 2 or 3 demos and only 1 game (beats of rage).

I would need people to test it with their favorite games/demos and to 
report *regressions*. For now, it's not obvious improvements will be 
visible, but at least it's important to ensure there's no regression 
(programs that worked should still work, and if a program works badly 
with this new version but it was already bad before, then it's OK for now).

Once it's OK, I will commit the new version to HG.

Note that as usual, WinUAE produces a lot of warning during compilation, 
don't bother too much about it, they're mostly harmless and will be 
disabled later.


Nicolas