--- gas/config/rx-defs.h.orig	2013-07-08 15:25:40.000000000 +0530
+++ gas/config/rx-defs.h	2013-07-08 15:28:43.000000000 +0530
@@ -38,7 +38,8 @@
 {
   RX600,
   RX610,
-  RX200
+  RX200,
+  RX100
 };
 
 extern int rx_pid_register;
--- gas/config/rx-parse.y.orig	2013-07-08 15:26:04.000000000 +0530
+++ gas/config/rx-parse.y	2013-07-08 15:29:49.000000000 +0530
@@ -1634,6 +1634,6 @@
 static void
 rx_check_float_support (void)
 {
-  if (rx_cpu == RX200)
+  if (rx_cpu == RX100 || rx_cpu == RX200)
     rx_error (_("target CPU type does not support floating point instructions"));
 }
--- gas/config/tc-rx.c.orig	2013-07-08 15:26:19.000000000 +0530
+++ gas/config/tc-rx.c	2013-07-08 15:30:57.000000000 +0530
@@ -161,7 +161,9 @@
       return 1;
 
     case OPTION_CPU:
-      if (strcasecmp (arg, "rx200") == 0)
+      if (strcasecmp (arg, "rx100") == 0)
+        rx_cpu = RX100;
+      else if (strcasecmp (arg, "rx200") == 0)
 	rx_cpu = RX200;
       else if (strcasecmp (arg, "rx600") == 0)
 	rx_cpu = RX600;