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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