feat: introduced tasking, added paging (no vm), moved malloc, added

syscalls, other stuff

kernel/cpu/timer.c

@@ -9,6 +9,7 @@
 #include <libc/libc.h>
 #include <libk.h>
 #include <kprint.h>
+#include <tasks/task.h>
 
 // https://wiki.osdev.org/PIT
 #define PIT_MODE_BIN_BCD                            (1 << 0)
@@ -34,8 +35,13 @@
 
 uint32_t tick = 0;
 
-static void timer_callback(registers_t regs) {
+static void timer_callback(isr_registers_t *regs) {
     tick++;
+    task_switch_next();
+}
+
+uint32_t timer_get_tick() {
+    return tick;
 }
 
 void sleep(uint32_t milliseconds) {