RE: Text in graphics mode

["Paul Robson" <probson@powerup.com.au>]

Hi Lionel,

According to teach yourself gp in 21 days, there is an 8x8 ASCII character
set at memory location 0xF000:FA6E.  It's stored as a true bitmap (ie, each
character is 8 bytes long, one bit per pixel).  So, all you have to do is
write a function to convert these 1bpp bitmaps to whatever bit depth you're
displaying, multiply the ascii character code of the character you're
displaying by 8, add this to 0xF000:FA6E ( i don't know what that would be
in 32 bit mode...  0xF000FA6E ?) and then you can display the character.

if you want the code i can send it to you no worries.

Hope that helps

Paul Robson

> -----Original Message-----
> From: gameprogrammer-owner@gameprogrammer.com
> [mailto:gameprogrammer-owner@gameprogrammer.com]On Behalf Of Lionel
> Pinkhard
> Sent: Wednesday, July 26, 2000 3:32
> To: gameprogrammer@gameprogrammer.com
> Subject: Text in graphics mode
>
>
> Hi,
>
> Can somebody please explain to me how to write text in a graphics mode?
> I've figured out how to set the cursor (using a BIOS call! :-( ). But when
> I tried to write to the screen using VGA BIOS call 0ah, I just got two
> strings of repeating characters. I didn't bother messing around further,
> since I'm quite sure there's a better way to do it than like this! I know,
> from my own experience, that BIOS calls are SLOW! But I have to use them
> on CGA and EGA modes (since I don't have any docs on CGA, and I'm still
> trying to understand the EGA doc - I think EGA is the trickiest of them
> all!) for the moment. Does anybody have any advice for me?
>
> Kind regards,
>
> Lionel Pinkhard
>
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