Using smaller divisor now, for faster multitasking

src/kernel/arch_i386/interrupts.c

@@ -119,6 +119,26 @@ void kernel_panic(char *message, cpu_registers_t *regs){
 void install_irq_handler(void (*handler)(), uint8_t irqno){
     interrupt_handlers[irqno] = handler;
 }
+void pit_reload(uint8_t mode, uint16_t reload){
+    const uint16_t PIT_CMD = 0x43;
+    const uint16_t PIT_DATA = 0x40;
+    outb(PIT_CMD, 0b00110000 + mode); //channel 0, low/high byte, rate generator mode
+    
+    outb(PIT_DATA, reload >> 8);
+    outb(PIT_DATA, reload & 0xff);
+    return;
+}
+void pit_init(uint32_t freq){
+    uint32_t reload_value = 0x10000;
+    if(freq <= 18){
+        pit_reload(0b100, reload_value);
+    }
+    if(freq >= 1193181){
+        pit_reload(0b100, reload_value >> 16);
+    }
+    reload_value = ((3579545 * 256)/(3 * 256))/(freq);
+    pit_reload(0b100, reload_value);
+}
 
 void idt_load(){
     // for(uint32_t i = 0; i < 32; i++){
@@ -169,6 +189,8 @@ void idt_load(){
     for(int i = 0; i < 16; i++){
         interrupt_handlers[i] = 0;
     }
+    
+    pit_init(1193181);
     // asm volatile("lidt (%0)" : : "m"(&idt_desc));
     // outb(0x20, 0x11 );
     // outb(0xa0, 0x11);

src/kernel/kmain.c

@@ -36,8 +36,6 @@ extern void kmain(kernel_info_t *kernel_info){
     
     fcreate("/dev", VFILE_DIRECTORY, kmalloc(1), 1);
     fcreate("/tmp", VFILE_DIRECTORY, kmalloc(1), 1);
-    vfile_t *file = fopen("/dev");
-    printf("%x", file);
     mlog("KERNEL", "Initializing Scheduler & starting PID 1\n", MLOG_PRINT);
     boot_info = kernel_info;
     scheduler_init();

src/kernel/system/scheduler.c

@@ -30,7 +30,7 @@ void scheduler_init(){
     install_irq_handler(schedule, 0);
     // printf("Installing scheduler");
 }
-
+uint32_t timer = 0;
 cpu_registers_t *schedule(cpu_registers_t *regs){
     // if(queue_length == 0){
     //     return regs;

src/kernel/system/vfs.c

@@ -174,9 +174,9 @@ vfile_t *fopen(char *name){
     if(name[strlen(name) - 1] == '/'){
         name[strlen(name) - 1] = 0;
     }
-    printf("%s\n", name);
+    // printf("%s\n", name);
     char *dir = strtok(name, '/');
-    printf("%s", name);
+    // printf("%s", name);
     char *tmp = dir;
     uint32_t filename_offset = 0;
     vfile_t *current_dir = &root_dir; 
@@ -185,12 +185,12 @@ vfile_t *fopen(char *name){
         dir = tmp;
         tmpfile = search_dir(tmp, *current_dir);
         if(!tmpfile){
-            printf("not found\n");
+            // printf("not found\n");
             return 0;
         }
         switch(tmpfile->type){
             case VFILE_DIRECTORY:
-                printf("found directory in %s: %s\n", current_dir->name, tmpfile->name);
+                // printf("found directory in %s: %s\n", current_dir->name, tmpfile->name);
                 current_dir = tmpfile;
                 break;
             case VFILE_MOUNT: