Let's Code MS DOS 0x0D: Near and Far and IRQs

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Germany root42
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Published on ● Video Link: https://www.youtube.com/watch?v=isgjKcvGDSk


Duration: 25:01
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I got a comment for my other video on SoundBlaster DMA playback that the code works indeed in DOSBox, but not on a real machine. Well, it turns out that was correct. In this episode we fix the IRQ handling of the code, which the DOSBox emulation was a bit lenient with. Also I explain the importance of DOS memory models and near and far pointers.

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Tags:
letscode
msdos
soundblaster