Programmer Humor

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Of course (lemmy.world)

submitted 1 month ago by [email protected] to c/[email protected]

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[–] [email protected] 2 points 1 month ago (1 children)

return from subroutine, int3 would be something relating to interrupts off the top of my head.

[–] [email protected] 3 points 1 month ago

Int3 is a special single-byte (CC, if I recall correctly) form of the INT instruction (which is CD imm8, I think) to raise an interrupt. Interrupt #3 is the debugging interrupt, so by overwriting any instruction with CC, you place a breakpoint there.