Re: [hatari-devel] Hatari Falcon videomode bug

[Laurent Sallafranque <laurent.sallafranque@xxxxxxx>]

Hi,

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.

Regards

Laurent



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