tons more work on modularizing the code

include/util/error_func.inc

@@ -18,13 +18,23 @@
 ; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 ; SOFTWARE.
 
+%ifndef __INC_ERROR_FUNC
+
 %macro ERROR 1
     xor ax, ax
     mov al, %1
     jmp error
 %endmacro
 
+%macro DEBUG_HCF 0
+    DEBUG_LOOP:
+        cli
+        hlt
+        jmp short DEBUG_LOOP
+%endmacro
+
 ; pass error as ascii character in al, errors a-zA-Z or 0-9
+ALIGN 4, db 0x90
 error:
     ; fs = 0xb800 => fs:0x0000 = 0xb8000
     mov dx, 0xB800
@@ -47,4 +57,7 @@ error:
 
 .stop:
     hlt
-    jmp short error.stop
+    jmp short error.stop
+
+%endif
+%define __INC_ERROR_FUNC