//exception.cpp - error codes as shown in kernel panic
//Created by Timothy Williams on 022717-2130
#include "exception.h"
#include <hal.h>
#include <stdint.h>

extern void _cdecl kernel_panic (const char* fmt, ...);

#define intstart() \
	asm	cli \
	asm	sub		ebp, 4


#pragma warning (disable:4100)

//! divide by 0 fault
void _cdecl divide_by_zero_fault (uint32_t eflags,uint32_t cs,uint32_t eip, uint32_t other) {

	asm {
		cli
		add esp, 12
		pushad
	}

	kernel_panic ("Divide by 0 at physical address [0x%x:0x%x] EFLAGS [0x%x] other: 0x%x",cs,eip, eflags, other);
	for (;;);
}

//! single step
void interrupt _cdecl single_step_trap (unsigned int cs, unsigned int eip, unsigned int eflags) {

	intstart ();
	kernel_panic ("Single step");
	for (;;);
}

//! non maskable interrupt trap
void interrupt _cdecl nmi_trap (unsigned int cs, unsigned int eip, unsigned int eflags) {

	intstart ();
	kernel_panic ("NMI trap");
	for (;;);
}

//! breakpoint hit
void interrupt _cdecl breakpoint_trap (unsigned int cs,unsigned int eip, unsigned int eflags) {

	intstart ();
	kernel_panic ("Breakpoint trap");
	for (;;);
}

//! overflow
void interrupt _cdecl overflow_trap (unsigned int cs, unsigned int eip, unsigned int eflags) {

	intstart ();
	kernel_panic ("Overflow trap");
	for (;;);
}

//! bounds check
void interrupt _cdecl bounds_check_fault (unsigned int cs, unsigned int eip, unsigned int eflags) {

	intstart ();
	kernel_panic ("Bounds check fault");
	for (;;);
}

//! invalid opcode / instruction
void interrupt _cdecl invalid_opcode_fault (unsigned int cs, unsigned int eip, unsigned int eflags) {

	intstart ();
	kernel_panic ("Invalid opcode");
	asm cli
	for (;;) _asm hlt;
}

//! device not available
void interrupt _cdecl no_device_fault (unsigned int cs, unsigned int eip, unsigned int eflags) {

	intstart ();
	kernel_panic ("Device not found");
	for (;;);
}

//! double fault
void interrupt _cdecl double_fault_abort (unsigned int cs, unsigned int err, unsigned int eip, unsigned int eflags) {

	intstart ();
	kernel_panic ("Double fault");
	for (;;);
}

//! invalid Task State Segment (TSS)
void interrupt _cdecl invalid_tss_fault (unsigned int cs,unsigned int err,  unsigned int eip, unsigned int eflags) {

	intstart ();
	kernel_panic ("Invalid TSS");
	for (;;);
}

//! segment not present
void interrupt _cdecl no_segment_fault (unsigned int cs,unsigned int err,  unsigned int eip, unsigned int eflags) {

	intstart ();
	kernel_panic ("Invalid segment");
	for (;;);
}

//! stack fault
void interrupt _cdecl stack_fault ( unsigned int cs,unsigned int err, unsigned int eip, unsigned int eflags) {

	intstart ();
	kernel_panic ("Stack fault");
	for (;;);
}

//! general protection fault
void interrupt _cdecl general_protection_fault (unsigned int cs,unsigned int err, unsigned int eip, unsigned int eflags) {

	intstart ();
	kernel_panic ("General Protection Fault");
	for (;;);
}