Add: paging & test

src/kernel/kheap.c

@@ -0,0 +1,42 @@
+#include "kheap.h"
+
+#include "../libc/stdint.h"
+
+extern uint32_t end;
+uint32_t placement_address = (uint32_t)&end;
+
+uint32_t kmalloc_int(uint32_t sz, int align, uint32_t *phys)
+{
+	if (align == 1 && (placement_address & 0x00000FFF))
+	{
+		placement_address &= 0xFFFFF000;
+		placement_address += 0x1000;
+	}
+	if (phys)
+	{
+		*phys = placement_address;
+	}
+	uint32_t tmp = placement_address;
+	placement_address += sz;
+	return tmp;
+}
+
+uint32_t kmalloc_a(uint32_t sz)
+{
+	return kmalloc_int(sz, 1, 0);
+}
+
+uint32_t kmalloc_p(uint32_t sz, uint32_t *phys)
+{
+	return kmalloc_int(sz, 0, phys);
+}
+
+uint32_t kmalloc_ap(uint32_t sz, uint32_t *phys)
+{
+	return kmalloc_int(sz, 1, phys);
+}
+
+uint32_t kmalloc(uint32_t sz)
+{
+	return kmalloc_int(sz, 0, 0);
+}