target-ppc: implement load atomic instruction
lwat: Load Word Atomic
ldat: Load Doubleword Atomic
The instruction includes as function code (5 bits) which gives a detail
on the operation to be performed. The patch implements five such
functions.
Signed-off-by: Balamuruhan S <bala24@linux.vnet.ibm.com>
Signed-off-by: Harish S <harisrir@linux.vnet.ibm.com>
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
[ combine both lwat/ldat implementation using macro ]
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
diff --git a/target/ppc/internal.h b/target/ppc/internal.h
index 5b5b180..1f441c6 100644
--- a/target/ppc/internal.h
+++ b/target/ppc/internal.h
@@ -133,6 +133,8 @@
EXTRACT_HELPER(NB, 11, 5);
/* Shift count */
EXTRACT_HELPER(SH, 11, 5);
+/* lwat/stwat/ldat/lwat */
+EXTRACT_HELPER(FC, 11, 5);
/* Vector shift count */
EXTRACT_HELPER(VSH, 6, 4);
/* Mask start */
