>On 2001-07-29 22:59:08, Anonymous wrote:
>>On 2001-07-29 22:38:40, Anonymous wrote:
>>>On 2001-07-29 22:33:52,
[email protected] wrote:
>>>I've been making a test kernel. Basically just
>>>something to more or less play around with to learn
>>>more about the PC and how it operates. Anyway,
>>>When I define an IDT and I, then, enable interrupts,
>>>the computer seems to triple fault.
>
>Did you set up handlers(gates) in your IDT for the interrupts ??
>Did you issue LIDT before STI ?
>If you didn't and did not mask them,you will get tripple fault!
>But In many cases the problem comes from setting wrong values
>in the IDT ?
>
>email:
[email protected]
>
Yes, I issued LIDT and created a table, but it's quite possible
that my values are screwy. The format of the IDT is
<16-bit offset of handler (low)>:<16-bit selector>:<16-bit "permissions" control (such as 8E, etc.)>:<16-bit offset of handler (high)>
Is this correct? Would anyone happen to know where I might see some
quick code that would just simply create an LDT, enough for me to do sti?
Nothing fancy ...just something simple? I really think something
in my LDT is wrong, personally.
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> Another question
>>>that I have is this...if you are in the bootloader and
>>>you load a GDT, do you also have to reload this in
>>>your kernel? If so, why? And if you have two differing
>>>GDT's (kernel and bootloaders GDTs are different), can
>>>this potentially make it to where when I create my IDT,
>>>I have problems? Any help would be really appreciated.