Revert "Revert "stuff""

This reverts commit 1f4e3a2bf3a36c917f22bda4e6cda7615d978150.

Makefile

@@ -84,7 +84,7 @@ make_disk:
 	@echo ${CL2}[make_disk]${CL} OK${CL3}
 
 testloader: loader
-	@qemu-system-x86_64 -hda build/bin/disk.img -d cpu_reset,guest_errors,pcall -s -S -enable-kvm 2> qemu.log &
+	@qemu-system-x86_64 -hda build/bin/disk.img -d cpu_reset,guest_errors,pcall,int -s -S -enable-kvm 2> qemu.log &
 	@ndisasm $(OBJDIR)/boot/loader.bin -b 32 > loader_dism.asm
 
 

boot/loader/loader.asm

@@ -86,7 +86,28 @@ main:
     call Is64Bits
 
     call Setup_paging
-    call Go64
+
+    ;; Registering paging
+    mov eax, PML4_table
+    mov cr3, eax                    ; Load PML4 to cr3
+
+    mov eax, cr4
+    or eax, 1 << 5
+    mov cr4, eax                    ; Enable PAE
+
+    ;; Activate long mode
+    mov ecx, 0xC0000080             ; address of MSR
+    rdmsr                           ; read MSR
+    or eax, 1 << 8                  ; LME = 1. (Long Mode Enable)
+    wrmsr                           ; write MSR
+
+    ;; Enable paging
+    mov eax, cr0
+    or eax, 1 << 31                 ; make MSR bit 31 (PG = Paging) to 1 :
+                                    ;    |1|000000000000000000000000000000
+                                    ;     |
+                                    ;     `------ Paging bit
+    mov cr0, eax
 
     mov dword [0xb8000], 0x2f4b2f4f
     ret