Date: Tue, 03 Jun 1997 12:55:32 -0300
Message-Id: <VA.00000015.0001dbd2@fsalas>
To: Shawn AT talula DOT demon DOT co DOT uk
Cc: djgpp AT delorie DOT com
Subject: Re: Allegro problem
From: Fernando Salas <fsalas AT impsat1 DOT com DOT ar>
Reply-To: fsalas AT impsat1 DOT com DOT ar
In-Reply-To: <MkTAdHAodxkzEwn5@talula.demon.co.uk>
Precedence: bulk


Hi Shawn 

I run the tests you ask me for:

Here's the legend from the driver:

Trident
TVGA GUI9440
640x480(1024 x 1024),1024 K ram,64 k bank,64k granularity

Your are right with scroll, it seems to scroll by 4 pixels to left and 
right.

When I tried to scroll up and down, it does scroll at 1 pixel but it also 
change horizontal position:

you start the scrolling test

you press down key

it scrolls 1 pixel down but the grid is shifted in a manner that the first 
gridline number that appears on top left of the screen is an 8 (truncated)

you press down key again

it scrolls 1 pixel down but the grid is shifted in a manner that correct 
the first shift

get it?

BTW, The  screen doesn't scrolls right and left for every keypress, It loks 
like I must insist(3-6 keystrokes) for the screen to scroll


Hope this help, anyother  thing you need , just tell me.

Fernando