4 ms·
You should write that answer as a comment to the blog post. The author of the blog is very thorough and likely to take an interest to it, if there’s anything to
by anyfoo 3y ago
You should write that answer as a comment to the blog post. The author of the blog is very thorough and likely to take an interest to it, if there’s anything to it.
(As an aside, why are we assuming 80287 and not 8087? I know nothing about both, so it’s well likely that I missed obvious hints. EDIT: Ah, I guess because it’s the int 13 handler specifically.)
- peterfirefly 3y agoI did. Stuck in moderation. Correct, int 13h.
- anyfoo 3y agoWasn’t 13h disk services? Guess they got shared? Or is it hardware interrupt 13h mapped somewhere else through the interrupt controller?
- projektfu 3y agoShould be int 16h I think.
- peterfirefly 3y agoInt 16h was the BIOS keyboard services.
- projektfu 3y agoRight, thanks.
- peterfirefly 3y agoIt was actually IRQ13 -- one of the input pins on the slave interrupt controller. It was typically mapped to INT 75h. I don't know if Windows remapped it.