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    SubjectRe: asm (lidt) question
    On Tue, 22 Jul 2003, Richard B. Johnson wrote:

    > LIDT is "load interrupt descriptor table". SIDT is "store interrupt
    > descriptor table". Only SIDT modifies memory. LIDT reads from memory
    > and puts the result into a special CPU register, therefore doesn't
    > modify memory.

    Indeed, that why this is not really correct :

    __asm__ __volatile__("lidt %0": "=m" (var));

    even if it generates the same code of :

    __asm__ __volatile__("lidt %0": : "m" (var));

    - Davide

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      Last update: 2005-03-22 13:47    [W:0.022 / U:30.508 seconds]
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