PREEMPTIVE MULTITASKING!!!!

kernel/src/sched.c

@@ -0,0 +1,26 @@
+#include <kernel.h>
+#include <task.h>
+#include <gdt.h>
+
+#include <sched.h>
+
+void schedule(void) {
+	if (task_first == NULL) return;
+
+	struct task* next = task_current->next;
+	if (next == NULL) next = task_first;
+
+	while (next->state != TASK_STATE_READY) {
+		next = next->next;
+		if (next == NULL) next = task_first;
+	}
+
+	struct task* old = task_current;
+	task_current = next;
+
+	tss_esp0(next->kstack_bottom);
+
+	// NOTE: Might not return
+	task_switch(old, next);
+}
+