HalInstallInterruptHandler

HalInstallInterruptHandler function

Description

This function generates and installs an IDT descriptor

Syntax

status HalInstallInterruptHandler(dword interruptNumber, 
                                  idtflags idtFlags, 
                                  word selector, 
                                  interrupt_handler_function handler
);

Parameters

interruptNumber

The number of the interrupt handled (eg. if this is set to 10, the handler to "int 10" would be installed)

---

idtFlags

The descriptor's flags (see HalGenerateIDTDesc)

---

selector

Selector to use when processing the interrupt. Must be a code selector

---

handler

The base address of the function called to handle the interrupt. The function must have a void return types, no parameters and must end with "iret" instead of "ret"

Return Value

This function returns a SOARE Status code. A zero return value means the function was successful while a nonzero return value indicates the function failed

Notes

You can only install 1 handler for each interrupt, meaning that if you try to install a handler to an interrupt that is already handled, the old handler will be replaced with the new one