diff --git a/c/src/lib/libcpu/powerpc/ChangeLog b/c/src/lib/libcpu/powerpc/ChangeLog
index 616a5baf5e..90cee6a3fa 100644
--- a/c/src/lib/libcpu/powerpc/ChangeLog
+++ b/c/src/lib/libcpu/powerpc/ChangeLog
@@ -1,3 +1,8 @@
+2007-12-06	Till Straumann <strauman@slac.stanford.edu>
+
+	* shared/include/cpuIdent.h, shared/include/cpuIdent.c:
+	added feature check for 603 'TLBMISS exception GPRS shadowing'.
+
 2007-12-06	Till Straumann <strauman@slac.stanford.edu>
 
 	* new-exceptions/raw_exception.c, new-exceptions/raw_exception.h:
diff --git a/c/src/lib/libcpu/powerpc/shared/include/cpuIdent.c b/c/src/lib/libcpu/powerpc/shared/include/cpuIdent.c
index c1c0fd5da8..d1b5b74f77 100644
--- a/c/src/lib/libcpu/powerpc/shared/include/cpuIdent.c
+++ b/c/src/lib/libcpu/powerpc/shared/include/cpuIdent.c
@@ -131,7 +131,20 @@ ppc_cpu_id_t get_ppc_cpu_type()
 
   switch ( current_ppc_cpu ) {
   	case PPC_860:
-		current_ppc_features.has_16byte_clne	=1;
+		current_ppc_features.has_16byte_clne	= 1;
+	default:
+	break;
+  }
+
+  switch ( current_ppc_cpu ) {
+    case PPC_603e:
+    case PPC_603ev:
+    case PPC_603le:
+    case PPC_e300c1:
+    case PPC_e300c2:
+    case PPC_e300c3:
+    case PPC_8240:
+		current_ppc_features.has_shadowed_gprs  = 1;
 	default:
 	break;
   }
diff --git a/c/src/lib/libcpu/powerpc/shared/include/cpuIdent.h b/c/src/lib/libcpu/powerpc/shared/include/cpuIdent.h
index 9ed72607f3..c0763f98d1 100644
--- a/c/src/lib/libcpu/powerpc/shared/include/cpuIdent.h
+++ b/c/src/lib/libcpu/powerpc/shared/include/cpuIdent.h
@@ -63,6 +63,7 @@ typedef struct {
 	unsigned is_60x             : 1;
 	unsigned has_8_bats			: 1;
 	unsigned has_epic           : 1;
+	unsigned has_shadowed_gprs  : 1;
 } ppc_feature_t;
 
 extern ppc_feature_t   current_ppc_features;
@@ -90,6 +91,7 @@ _PPC_FEAT_DECL(is_bookE)
 _PPC_FEAT_DECL(is_60x)
 _PPC_FEAT_DECL(has_8_bats)
 _PPC_FEAT_DECL(has_epic)
+_PPC_FEAT_DECL(has_shadowed_gprs)
 
 #undef _PPC_FEAT_DECL
 #endif /* ASM */