remove a duplication of load_rom and load_asm

extras/comparator.py

@@ -7,6 +7,8 @@ from crystal import (
     get_label_from_line,
     get_address_from_line_comment,
     AsmSection,
+    direct_load_rom,
+    direct_load_asm,
 )
 
 from romstr import (
@@ -17,22 +19,12 @@ from romstr import (
 def load_rom(path):
     """ Loads a ROM file into an abbreviated RomStr object.
     """
-
-    fh = open(path, "r")
-    x  = RomStr(fh.read())
-    fh.close()
-
-    return x
+    return direct_load_rom(filename=path)
 
 def load_asm(path):
     """ Loads source ASM into an abbreviated AsmList object.
     """
-
-    fh = open(path, "r")
-    x = AsmList(fh.read().split("\n"))
-    fh.close()
-
-    return x
+    return direct_load_asm(filename=path)
 
 def findall_iter(sub, string):
     # url: http://stackoverflow.com/a/3874760/687783