kernel.cpp

#include "kernel.h"

#include "vga.h"
#include "printk.h"
#include "ps2.h"
#include "keyboard.h"
#include "interrupt.h"
#include "gdt.h"
#include "serial.h"
#include "multiboot2_tags.h"
#include "page_table.h"
#include "kmalloc.h"
#include "threading.h"

void wait_a_little() {
    int i = 100000;
    while (i--);
}

void wait_longer() {
    int i = 50000000;
    while (i--);
}

void test0(void *arg) {
    int i = *(int *)arg;
    while (1) {
        printk("%d\n", i);
        i += 4;
        if (i > 400)
            break;
        yield();
    }
    kexit();
}

void test1(void *arg) {
    int i = *(int *)arg;
    while (1) {
        printk("%d\n", i);
        i += 4;
        if (i > 400)
            break;
        yield();
    }
    kexit();
}

void test2(void *arg) {
    int i = *(int *)arg;
    while (1) {
        printk("%d\n", i);
        i += 4;
        if (i > 400)
            break;
        yield();
    }
    kexit();
}

void test3(void *arg) {
    int i = *(int *)arg;
    while (1) {
        printk("%d\n", i);
        i += 4;
        if (i > 400)
            break;
        yield();
    }
    kexit();
}

void kernel_main(void *multiboot2_tag) {
    setup_gdt_tss();
    init_VGA();
    init_COM1();
    init_interrupts();
    if (init_ps2())
        init_keyboard();
    sti();
    read_multiboot2_tags(multiboot2_tag);
    MMU_pf_init();
    init_heap();
    init_threading();
    wait_longer();
    clear_screen();

    splash_screen();
    wait_longer();
    wait_longer();
    clear_screen();

    printk("Success!\n");
    sti();
    int i = 0;
    PROC_create_kthread(test0, &i);
    int j = 1;
    PROC_create_kthread(test1, &j);
    int k = 2;
    PROC_create_kthread(test2, &k);
    int l = 3;
    PROC_create_kthread(test3, &l);
    kernel_loop(0x0);
}

void kernel_loop(void * args) {
    while (1) {
        PROC_run();
    }
    //halt;
}