Re: [hatari-devel] Hatari Falcon videomode bug

[ Thread Index | Date Index | More Archives ]


You're right and wrong at the same time :)

Videl works the opposite way for RGB/TV and VGA screens.
I think the way it works actually is OK for TV screens and wrong for VGA ones.

I think you did the test with a VGA screen, no ?

I'll fix that this week.



Le 20/02/2012 05:48, Roger Burrows a écrit :
When running in Falcon emulation (68030+Falcon+32MHz), the 'interlace/double
line' bit in the Falcon videomode is interpreted in the opposite way from a
real Falcon, as follows:

Interlace/double line         Real Falcon              Hatari
---------------------         -----------              ------
         0                  Full height screen     Half height screen
         1                  Half height screen     Full height screen

This can easily be seen by running TOS 4.04 under Hatari and on a real Falcon.
In the "Set video..." dialog, if you select 16 colours, 80 columns, interlace
off (this is videomode 0x000a), the screen on a real Falcon is 640x480; the
screen on Hatari is 640x240.  If you set interlace on (videomode 0x010a), the
screen on a real Falcon is 640x240; the screen on Hatari is 640x480.

Roger Burrows

Mail converted by MHonArc 2.6.19+