diff --git a/mach/m68k2/libfp/byte_order.h b/mach/m68k2/libfp/byte_order.h
index e7c51e10..50600a3f 100644
--- a/mach/m68k2/libfp/byte_order.h
+++ b/mach/m68k2/libfp/byte_order.h
@@ -1,3 +1,6 @@
-#define BYTES_REVERSED 1
-#define WORDS_REVERSED 0
 #define CHAR_UNSIGNED 0
+#define MSB_AT_LOW_ADDRESS	1
+#define MSW_AT_LOW_ADDRESS	1
+#define FL_MSB_AT_LOW_ADDRESS	1
+#define FL_MSW_AT_LOW_ADDRESS	1
+#define FL_MSL_AT_LOW_ADDRESS	1
diff --git a/mach/m68k4/libfp/byte_order.h b/mach/m68k4/libfp/byte_order.h
index e7c51e10..50600a3f 100644
--- a/mach/m68k4/libfp/byte_order.h
+++ b/mach/m68k4/libfp/byte_order.h
@@ -1,3 +1,6 @@
-#define BYTES_REVERSED 1
-#define WORDS_REVERSED 0
 #define CHAR_UNSIGNED 0
+#define MSB_AT_LOW_ADDRESS	1
+#define MSW_AT_LOW_ADDRESS	1
+#define FL_MSB_AT_LOW_ADDRESS	1
+#define FL_MSW_AT_LOW_ADDRESS	1
+#define FL_MSL_AT_LOW_ADDRESS	1