#include <stdint.h>

Data Structures
struct	idt_desc

struct	idtr_desc

struct	interrupt_frame

Macros
#define	MAX_INTERRUPTS 256

Typedefs
typedef void(*	ISR_HANDLER) (int int_no, struct interrupt_frame *frame)

Functions
struct idt_desc	__attribute__ ((packed))

void	idt_Init ()
	Initializes memory for IDT struct Sets default for all interrupts.

void	idt_SetDescriptor (int int_no, void *address)
	Fills entry in IDT for specified Interrupt number Use before idt_Load()

int	idt_SetHandler (int int_no, ISR_HANDLER handler)
	Sets handler for given interrupt number.

void	idt_Load ()
	Loads Interrupt Descriptor Table.

Variables
uint16_t	offset_low

uint16_t	selector

uint8_t	zero

uint8_t	type_attr

uint16_t	offset_high

uint16_t	limit

uint32_t	base

uint32_t	error_code

uint32_t	edi

uint32_t	esi

uint32_t	ebp

uint32_t	reserved

uint32_t	ebx

uint32_t	edx

uint32_t	ecx

uint32_t	eax

uint32_t	ip

uint32_t	cs

uint32_t	flags

uint32_t	esp

uint32_t	ss

const char *	idt_InterruptLayoutString [32]

Macro Definition Documentation

◆ MAX_INTERRUPTS

#define MAX_INTERRUPTS 256

Typedef Documentation

◆ ISR_HANDLER

typedef void(* ISR_HANDLER) (int int_no, struct interrupt_frame *frame)

Function Documentation

◆ attribute()

struct idt_desc __attribute__ ( (packed) )

◆ idt_Init()

void idt_Init ( )

Initializes memory for IDT struct Sets default for all interrupts.

References idtr_desc::base, idt_descriptors, idt_SetDescriptor(), idtr_descriptor, interrupt_pointer_table, idtr_desc::limit, MAX_INTERRUPTS, and memset().

◆ idt_Load()

void idt_Load ( )

Loads Interrupt Descriptor Table.

References idtr_descriptor.

◆ idt_SetDescriptor()

void idt_SetDescriptor	(	int	int_no,
		void *	address
	)

Fills entry in IDT for specified Interrupt number Use before idt_Load()

Parameters

int_no	Interrupt number
address	Pointer to interrupt handler

References idt_descriptors, idt_desc::offset_high, idt_desc::offset_low, idt_desc::selector, idt_desc::type_attr, and idt_desc::zero.

◆ idt_SetHandler()

int idt_SetHandler	(	int	int_no,
		ISR_HANDLER	handler
	)

Sets handler for given interrupt number.

Parameters

int_no	Interrupt number
handler	Handler function

Returns: int Error code

References ALL_OK, EINVARG, interrupt_handlers, and MAX_INTERRUPTS.

Variable Documentation

◆ base

uint32_t base

◆ cs

uint32_t cs

◆ eax

uint32_t eax

◆ ebp

uint32_t ebp

◆ ebx

uint32_t ebx

◆ ecx

uint32_t ecx

◆ edi

uint32_t edi

◆ edx

uint32_t edx

◆ error_code

uint32_t error_code

◆ esi

uint32_t esi

◆ esp

uint32_t esp

◆ flags

uint32_t flags

◆ idt_InterruptLayoutString

const char* idt_InterruptLayoutString[32]

extern

◆ ip

uint32_t ip

◆ limit

uint16_t limit

◆ offset_high

uint16_t offset_high

◆ offset_low

uint16_t offset_low

◆ reserved

uint32_t reserved

◆ selector

uint16_t selector

◆ ss

uint32_t ss

◆ type_attr

uint8_t type_attr

◆ zero

uint8_t zero

Data Structures

Macros

Typedefs

Functions

Variables