Hi, few days before,I heard about MCGA graphics mode and that it does not need any BGI files.Well, can any one explain what it is , how it is used and some examples . Please..... :-)
What was probably meant was that it doesn't
have any BGI files. :) This graphics adapter was not very big in the industry. I believe (and I'm reaching way back for this one) that it used a memory array of RGB pixel bytes, one byte for Red the next for Green and the next for Blue. And these bytes were located in video memory which was mapped to 0B00:0000 (I think), so you could write directly to memory without having to do much with IO ports. But you would need some graphics library for doing things like flood fill, line, arc, circle, and the like or make one up. Without a BGI file, you would most likely have to make one. I think I have a VGA book that has some algorithms kicking around some where. :)
For more info on MCGA, go to the link that was posted by the other poster.
Hope this helps.
Adrian
52
