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-rw-r--r--cpukit/score/cpu/powerpc/ppc-context-volatile-clobber.S45
1 files changed, 45 insertions, 0 deletions
diff --git a/cpukit/score/cpu/powerpc/ppc-context-volatile-clobber.S b/cpukit/score/cpu/powerpc/ppc-context-volatile-clobber.S
new file mode 100644
index 0000000000..f4a5721df6
--- /dev/null
+++ b/cpukit/score/cpu/powerpc/ppc-context-volatile-clobber.S
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2013 embedded brains GmbH. All rights reserved.
+ *
+ * embedded brains GmbH
+ * Dornierstr. 4
+ * 82178 Puchheim
+ * Germany
+ * <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+ #include "config.h"
+#endif
+
+#include <rtems/asm.h>
+
+ .global _CPU_Context_volatile_clobber
+
+_CPU_Context_volatile_clobber:
+
+ addi r4, r3, 10
+ rlwinm r4, r4, 0, 20, 7
+ mfcr r5
+ rlwinm r5, r5, 0, 8, 19
+ or r4, r4, r5
+ mtcr r4
+ addi r4, r3, 11
+ mtctr r4
+ addi r4, r3, 12
+ mtxer r4
+ addi r0, r3, 13
+ addi r4, r3, 1
+ addi r5, r3, 2
+ addi r6, r3, 3
+ addi r7, r3, 4
+ addi r8, r3, 5
+ addi r9, r3, 6
+ addi r10, r3, 7
+ addi r11, r3, 8
+ addi r12, r3, 9
+ blr