Back in high school I used to spend way too much time playing with mode 13h. I used turbo pascal which allowed some inline assembly syntax [1], so one would initialize the 320x200x256color mode like:
BEGIN
asm
mov ax, 13h
int 10h
end;
END;
and put a pixel on the screen like:
Procedure Putpixel (X, Y : Integer; Col : Byte);
BEGIN
VgaMem [X + (Y * 320)] := Col;
END;
The palette was just 256 colors but you could pick which rgb colors to use [2], some effects would be based in palette cycling, others (fire!) would like nice by focusing in fewer hues.
Back in high school I used to spend way too much time playing with mode 13h. I used turbo pascal which allowed some inline assembly syntax [1], so one would initialize the 320x200x256color mode like:
and put a pixel on the screen like: The palette was just 256 colors but you could pick which rgb colors to use [2], some effects would be based in palette cycling, others (fire!) would like nice by focusing in fewer hues.Such a time sink... :-)
1: http://archive.gamedev.net/archive/reference/articles/articl...
2: http://www.brackeen.com/vga/bitmaps.html