Initial commit

code/ap_boot_real.asm

@@ -0,0 +1,16 @@
+; Continuing boot_ap:
+    ; Enable Protected Mode, executed from an identity mapped page.
+    mov eax, cr0
+    or al, 0x1 ; Set PE bit
+    mov cr0, eax
+
+    ; Setup the protected mode segments
+    mov ax, 0x10
+    mov ds, ax ; Data segment register
+    mov es, ax ; Extra segment register
+    mov ss, ax ; Stack segment register
+    mov fs, ax ; General purpose segment register
+    mov gs, ax ; General purpose segment register
+
+    ; Far jump to protected mode, set code segment register
+    jmp dword 0x8:boot_ap_32 - boot_ap + 0x8000