diff --git a/bootloader/bios/memory.asm b/bootloader/bios/memory.asm
index 874ca4e..9ba6e93 100644
--- a/bootloader/bios/memory.asm
+++ b/bootloader/bios/memory.asm
@@ -1,5 +1,20 @@
 ; SRs to find memory size and leave it as a "note" for the kernel
 
+; Descriptor Table for address ranges
+addr_rng_dt_start:	
+	addr_rng_low: dd 0
+	addr_rng_high: dd 0
+	addr_rng_len_low: dd 0
+	addr_rng_len_high: dd 0
+	addr_rng_type: dd 0
+addr_eng_dt_end:
+
+map_phys_mem_init:
+	mov ebx, 0
 map_phys_mem:
-	int 0x15
+	mov eax, 0xe820 ; Function code
+	mov es, 
+	mov edx, 'SMAP' ; Signature
+	int BIOS_PMEM_INT
+
 
diff --git a/bootloader/bootloader.asm b/bootloader/bootloader.asm
index 7e4433c..581346d 100644
--- a/bootloader/bootloader.asm
+++ b/bootloader/bootloader.asm
@@ -27,6 +27,7 @@
 %include "bootloader/bios/convert.asm"
 %include "bootloader/bios/print.asm"
 %include "bootloader/bios/disk.asm"
+%include "bootloader/bios/memory.asm"
 
 ; Protected Mode SRs 
 %include "bootloader/equ/vga.asm"
@@ -43,7 +44,7 @@ pm_preinit:
 	lgdt [gdt_descriptor] 	; Tell the CPU about the GDT
 
 	mov eax, cr0		; Set first bit of the CR0 register
-	or eax, 0x1		; to 1
+	or eax, 0x1			; to 1
 	mov cr0, eax		; Update the control register
 
 	; Initialize PM