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What does int 0x81 do exactly?

开发者 https://www.devze.com 2023-04-04 04:31 出处:网络
Is int 0x81 in x86 assembly code assigning an integer to a register space, or just invoking an in开发者_StackOverflow社区terrupt?INT n where n is an integer literal is a software interrupt. The meanin

Is int 0x81 in x86 assembly code assigning an integer to a register space, or just invoking an in开发者_StackOverflow社区terrupt?


INT n where n is an integer literal is a software interrupt. The meaning of that interrupt number (and if it's even allowed) is operating system dependent.

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