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making graphics in NASM
- Thread starter NaiLBoMB
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No, there are only interrupt routines that let you copy video memory to an accessable memory location; it's up to you what you want to do with this memory.
Regards,
Bert Vingerhoets
vingerhoetsbert@hotmail.com
Don't worry what people think about you. They're too busy wondering what you think about them.
Regards,
Bert Vingerhoets
vingerhoetsbert@hotmail.com
Don't worry what people think about you. They're too busy wondering what you think about them.
lionelhill
Technical User
I used to play with graphics in dos quite a lot on pc's, using assembler. I found interrupts were hopeless. There is an interrupt for drawing a pixel or reading a pixel, and it works in any normal screen mode, but it is so slow it is painful to watch. There's not a lot of point in bursting into assembler and then sacrificing speed. The bios graphic interrupts are more useful for things like setting a mode, which you only do once at the start of the programme, and which otherwise involves quite a detailed knowledge of a VGA card. But all this is a bit obsolete now.
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