[Qemu-devel] [6675] SH4: Fixed last UTLB unused and URB/URC management

[Aurelien Jarno]

Revision: 6675
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6675
Author:   aurel32
Date:     2009-03-03 09:14:01 +0000 (Tue, 03 Mar 2009)
Log Message:
-----------
SH4: Fixed last UTLB unused and URB/URC management

Signed-off-by: Lionel Landwerlin <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>

Modified Paths:
--------------
    trunk/target-sh4/helper.c

Modified: trunk/target-sh4/helper.c
===================================================================
--- trunk/target-sh4/helper.c   2009-03-03 06:28:26 UTC (rev 6674)
+++ trunk/target-sh4/helper.c   2009-03-03 09:14:01 UTC (rev 6675)
@@ -304,7 +304,7 @@
     urb = ((env->mmucr) >> 18) & 0x3f;
     urc = ((env->mmucr) >> 10) & 0x3f;
     urc++;
-    if (urc > urb || urc > (UTLB_SIZE - 1))
+    if ((urb > 0 && urc > urb) || urc > (UTLB_SIZE - 1))
        urc = 0;
     env->mmucr = (env->mmucr & 0xffff03ff) | (urc << 10);
 }