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BIOS 's segment address is not F000?

BIOS 's segment address is not F000?

BIOS 's segment address is not F000?

(OP)
It is said the BIOS's segment address must be F000. But when I view int 13h in IDT,it isn't.

RE: BIOS 's segment address is not F000?

no wonder - normally most inttrupts are redirected after boot. i presume u used a kind of debugger to have a look at IDT - it might well have happened that was the debugger who hooked INT 13. but if u trace the int handler code, u probably will find the reference to the original int handler (but, in principle, this has not to be the case - the functions of the original handler can be performed by another chunk of code).

regards

RE: BIOS 's segment address is not F000?

(OP)
Thank you for your post.
But there are some other questions.Please see Thread272-689953

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