Module interrupt

Modules

• idt 🔒
• pic_8259
• pit
• plugbox
  Registrar of IRQ handling routines

Functions

• handle_exception 🔒
  handles exception/faults (nr < 32);
• handle_irq 🔒 ^⚠
  handle_irq assumes the interrupt is disabled when called. this will also make sure interrupt is disabled when it returns
• init
  initialize the idt and pic_8259
• interrupt_disable
• interrupt_enable
• irq_restore
  irq_restore only re-enable irq if was_enabled==true. it will not disable irq regardless the was_enabled value. This function should only be called to restore irq based on previous irq_save();
• irq_save
  irq_save() disables all interrupts and returns the previous state
• trap_gate 🔒