#include "asm.h"

#include "interrupt.h"

#include "print.h"

#include "ctype.h"

#include "mm.h"

u64 idt[256];

inline void iodelay(){

asm volatile ("nop\nnop\nnop\nnop\nnop");

}

void init_8259A(){

outb(0x20,0x11);

iodelay();

outb(0xa0,0x11);

iodelay();

outb(0x21,0x20);

iodelay();

outb(0xa1,0x28);

iodelay();

outb(0x21,0x04);

iodelay(); outb(0xa1,0x02);

iodelay();

outb(0x21,0x01);

iodelay();

outb(0xa1,0x01);

iodelay();

outb(0x21,0xfe);

iodelay();

outb(0xa1,0xff);

iodelay();

idt[TIMER] = IDT_ENTRY(0x8e00,cs(),(u32)p);

sti();

}

void setup_idt(){

u32 i;

u64 entry = IDT_ENTRY(0x8e00,cs(),(u32)udef_fun);

for(i = 0;i < 256;i++)

idt[i] = entry;

struct gdt_ptr ptr = {sizeof(idt),(u32)idt};

asm volatile("lidtl %0"::"m"(ptr));

}

void print_mem_info(){

u32* mem;

int i;

mem = (void*)boot_params_p + 0x2d0;

do{

printf_k("%08x - %08x : %8H : %08x",*(mem+0),*(mem+0)+*(mem+2),*(mem+2),*(mem+4));

putc_k('\n');

mem += 5;

}while(*mem);

}

void kernel(){

setup_idt();

clean_screen();

print_mem_info();

mm_init();

init_8259A();

*(int*)0xf0000000 = 0; //cause pf interrupt

//asm volatile("int $0xff");

while(1);

}