Constantsยง
- IDT_
CAPACITY - number of entries in IDT
- IDT_
VALID - 32 exceptions + 16 irqs from PIC = 48 valid interrupts
- SEG_
KERNEL_ CODE - SEG_
KERNEL_ DATA - GDT segment selectors (see boot/startup-x86_64.s).docs/ GDT[0]=null, [1]=kdata, [2]=kcode, [3]=ucode, [4]=udata, [5]=tss
- SEG_
USER_ CODE - user code/data with RPL=3
- SEG_
USER_ DATA - VECTOR_
SIZE - size of interrupt handler wrapper routine (vector)