Add: PIT (sysclock)

kmain.c

@@ -23,34 +23,13 @@ int kmain(int retvalue)
 
   clear();
 
-  // printf testing
+  colorputs("Blank OS version 1 iteration 3 minor 20\n", 10);
 
   // TODO: Framebuffer upgrade: color output
   // TODO: Serial printf to dump registers on kernel panic
   // TODO: Fix scrolling bug (framebuffer driver)
 
-  int age = 34;
-  int problems = 124;
-  char* name = "xamidev"; 
-  
-  printf("Hello %s, you are %d years old and have %d problems. wow %%\n", name, age, problems);
-  
-  long suchwow = 2934342;
-  char character = 65;
-  printf("such number %u\nsuch character %c", suchwow, character);
-  
-  printf("wow negative %d\n", -3742);
-  printf("such hex %x %X\n", 0xcafe, 0xdeadbeef);
-  
-  printf("such pointer %p\n", (void*)0xcafe1234);
-
-  for (int i=0; i<10; i++)
-  {
-    colorputs("hello colorful world!!\n", i);
-  }
-  // Div by zero exception
-  
-  //printf("Lalala, what a beautiful day! %d", 4/0);
+  timer_install();
 
   return retvalue;
 }