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sound question.
Hi all.
I have a question. How ac97snd generates sound? Througt mpu port? I think rather not, (it offers only 1 byte data width ). I saw sources, but I can't find this. So if not throght mpu port, so how? Other words witch system function suport audio codec. Internal speaker
Thanks for answer.

There is a sound system called 'infinity.obj'.
This service works with the driver 'sound.obj' (Well, the current sound.obj is not a real driver, instead it's a service which detect available pci sound cards, and loads the actual driver)

So for if I want write a sound app I must use driver, not system function (interrupt).
Thanks a lot.

You'll need to use system functions 68, 16 and 68, 17 to load and work with infinity.obj

New game landing can be used as an example of asm application that outputs sound.

Thanks all for help.