Update sim_fetch_register, sim_store_register for sh and mn10300.

Fix compile warnings for sh built on 64-bit hosts.

sim/mn10300/ChangeLog

@@ -1,3 +1,7 @@
+2012-02-16  Kevin Buettner  <kevinb@redhat.com>
+
+	* interp.c (sim_fetch_register): Return length, not -1.
+
 2012-01-02  Joel Brobecker  <brobecker@adacore.com>
 
 	* sim-main.h: Reformat copyright header.

sim/mn10300/interp.c

@@ -383,7 +383,7 @@ sim_fetch_register (SIM_DESC sd,
 		    int length)
 {
   put_word (memory, State.regs[rn]);
-  return -1;
+  return length;
 }
  
 int

sim/sh/ChangeLog

@@ -1,3 +1,10 @@
+2012-02-16  Kevin Buettner  <kevinb@redhat.com>
+
+	* interp.c (MA): Adjust cast to avoid warning on 64-bit hosts.
+
+	* interp.c (sim_store_register, sim_fetch_register): Return
+	length, not -1.
+
 2011-12-03  Mike Frysinger  <vapier@gentoo.org>
 
 	* aclocal.m4: New file.

sim/sh/interp.c

@@ -862,7 +862,7 @@ do { \
 #else
 
 #define MA(n) \
-  do { memstalls += ((((int) PC & 3) != 0) ? (n) : ((n) - 1)); } while (0)
+  do { memstalls += ((((long) PC & 3) != 0) ? (n) : ((n) - 1)); } while (0)
 
 #define L(x)   thislock = x;
 #define TL(x)  if ((x) == prevlock) stalls++;
@@ -2356,7 +2356,7 @@ sim_store_register (sd, rn, memory, length)
     default:
       return 0;
     }
-  return -1;
+  return length;
 }
 
 int
@@ -2531,7 +2531,7 @@ sim_fetch_register (sd, rn, memory, length)
       return 0;
     }
   * (int *) memory = swap (val);
-  return -1;
+  return length;
 }
 
 int