1 files changed, 47 insertions, 0 deletions
diff --git a/target/ppc/cpu.c b/target/ppc/cpu.c
new file mode 100644
index 0000000000..28011668e7
--- /dev/null
+++ b/target/ppc/cpu.c
@@ -0,0 +1,47 @@
+/*
+ *  PowerPC CPU routines for qemu.
+ *
+ * Copyright (c) 2017 Nikunj A Dadhania, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "cpu-models.h"
+
+target_ulong cpu_read_xer(CPUPPCState *env)
+{
+    if (is_isa300(env)) {
+        return env->xer | (env->so << XER_SO) |
+            (env->ov << XER_OV) | (env->ca << XER_CA) |
+            (env->ov32 << XER_OV32) | (env->ca32 << XER_CA32);
+    }
+
+    return env->xer | (env->so << XER_SO) | (env->ov << XER_OV) |
+        (env->ca << XER_CA);
+}
+
+void cpu_write_xer(CPUPPCState *env, target_ulong xer)
+{
+    env->so = (xer >> XER_SO) & 1;
+    env->ov = (xer >> XER_OV) & 1;
+    env->ca = (xer >> XER_CA) & 1;
+    /* write all the flags, while reading back check of isa300 */
+    env->ov32 = (xer >> XER_OV32) & 1;
+    env->ca32 = (xer >> XER_CA32) & 1;
+    env->xer = xer & ~((1ul << XER_SO) |
+                       (1ul << XER_OV) | (1ul << XER_CA) |
+                       (1ul << XER_OV32) | (1ul << XER_CA32));
+}