trying x86_64 support

kernel/cpu/main64.asm

@@ -0,0 +1,27 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;             vulcanOS Kernel           ;
+; Developed by Marco 'icebit' Cetica    ;
+;              (c) 2019-2021            ;
+;        Released under GPLv3           ;
+;   https://github.com/ice-bit/vulcanos ;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+GLOBAL long_mode_start
+GLOBAL kernel_loader
+EXTERN kernel_main
+section .text
+[BITS 64] ; Ensure we are in long mode
+
+long_mode_start:
+    xor ax, ax
+    mov ss, ax
+    mov ds, ax
+    mov es, ax
+    mov fs, ax
+    mov gs, ax
+
+    ; Call the kernel's main method
+    call kernel_main ; Call kernel's main function
+    .loop:
+        jmp .loop ; If the kernel returns, go into an endless loop
+                ; This will prevent the CPU to execure any non-kernel 
+                ; instructions.