FRACTALS now works on V4SA

[JeanMars]

Hi all,
FRACTALS is an appication developped for the Falcon featuring fast Fractals computations thanks to Falcon's DSP.
But it can also use a 68030 or a 68881/2.
I'm happy to announce that thanks to Guillaume Tello and Olivier Landemarre, this application now works on V4SA
You can find it here:
http://vision.atari.org/telee.htm or
http://vision2.atari.org/telee.htm (mirror site hosted at my home, TLS mandatory)
Just go to the bottom of the table to find it.

FRACTALS is described here: http://vision.atari.org/fractale.htm

Have fun!

[ThorstenOtto]

Nice, but just out of curiosity: why did the V4SA need fixes?

[Moulinaie]

Nice, but just out of curiosity: why did the V4SA need fixes?

The FPU detection was faulty : the program thought it was running on a Mega ST(e) with a 68881 in peripherial mode.
So it tried to access directly to this hardware.

The patch I made is simple, modifies some assembly instruction to clear a bit so the program uses the 68882 instructions in coprocessor mode.

Guillaume.