SVGA or VGA initialization

[dedndave]

this page does a good job of explaining video mode 13h
read the text - the code is in C - ignore that - let me look for an ASM example

http://www.brackeen.com/vga/basics.html

[dedndave]

ok - this program fills the screen with red
press any key to exit
when it's done, the text mode is full-screen - type EXIT to close the console window


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[nrdev]

thats it, thanks, it was a lot of help.

[dedndave]

i found a few more links for you to look at

http://www.codebreakers-journal.com/content/view/140/93/
http://digiassn.blogspot.com/2006/03/asm-working-with-video-palette.html
http://webpages.charter.net/danrollins/techhelp/0113.HTM

that last one tells about other int 10h functions
one of them you will be interested in is int 10h function 1002h

[Ossa]

A few things:

1) look at this, it is a post of a tutorial that I translated about writing VGA graphics things using DOS under ASM nearly 3 years ago (actually how I learned ASM). Note that full screen is not usable under Vista, but you're OK so long as you're using XP or older.

2) take a peek at this - this is a fully working game using DirectX 6 and is still the best ASM game tutorial out there (IMHO).

3) have a good look at Scronty's site for more up-to-date DirectX usage in ASM.

4) DOS is outdated and really much too hard to use... 32-bit Windows code is the way to go. Go for the Direct X versions.

All the best,
Ossa

[edit] Oh, if you want to know about interrupt codes, you need to look at Ralf Brown's Interrupt Listing i.e. for 10h, ax=1002h [/edit]

[Farabi]

If you want somethings cool, search about VESA and protected mode since DOS will only give you 1 MB of total memory.