Implement APIC & friends, TSC, time.h in libc
* Switch from using the lagacy PIC to the APIC
* Implement the IOAPIC for handling IRQs
* Nicer IRQ handling
* Implement the TSC
* Implement mktime(...) in libc's time.h
* Some other miscellaneous fixes
31 files changed,
764 insertions,
100 deletions