Merge remote-tracking branch 'remotes/rth/tags/pull-tile-20150915' into staging

TileGX basic instructions

# gpg: Signature made Tue 15 Sep 2015 15:57:08 BST using RSA key ID 4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"

* remotes/rth/tags/pull-tile-20150915: (35 commits)
  target-tilegx: Handle v1shl, v1shru, v1shrs
  target-tilegx: Handle v1shli, v1shrui
  target-tilegx: Handle v4int_l/h
  target-tilegx: Handle atomic instructions
  target-tilegx: Handle mtspr, mfspr
  target-tilegx: Handle v1cmpeq, v1cmpne
  target-tilegx: Handle mask instructions
  target-tilegx: Handle scalar multiply instructions
  target-tilegx: Handle conditional move instructions
  target-tilegx: Handle shift instructions
  target-tilegx: Handle bitfield instructions
  target-tilegx: Implement system and memory management instructions
  target-tilegx: Handle comparison instructions
  target-tilegx: Handle conditional branch instructions
  target-tilegx: Handle unconditional jump instructions
  target-tilegx: Handle post-increment load and store instructions
  target-tilegx: Handle basic load and store instructions
  target-tilegx: Handle most bit manipulation instructions
  target-arm: Use new revbit functions
  host-utils: Add revbit functions
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 55 insertions, 0 deletions

diff --git a/target-tilegx/simd_helper.c b/target-tilegx/simd_helper.c
new file mode 100644
index 0000000000..b9319292f3
--- /dev/null
+++ b/target-tilegx/simd_helper.c
@@ -0,0 +1,55 @@
+/*
+ * QEMU TILE-Gx helpers
+ *
+ *  Copyright (c) 2015 Chen Gang
+ *
+ * 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 2.1 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/lgpl-2.1.html>
+ */
+
+#include "cpu.h"
+#include "qemu-common.h"
+#include "exec/helper-proto.h"
+
+
+uint64_t helper_v1shl(uint64_t a, uint64_t b)
+{
+    uint64_t m;
+
+    b &= 7;
+    m = 0x0101010101010101ULL * (0xff >> b);
+    return (a & m) << b;
+}
+
+uint64_t helper_v1shru(uint64_t a, uint64_t b)
+{
+    uint64_t m;
+
+    b &= 7;
+    m = 0x0101010101010101ULL * ((0xff << b) & 0xff);
+    return (a & m) >> b;
+}
+
+uint64_t helper_v1shrs(uint64_t a, uint64_t b)
+{
+    uint64_t r = 0;
+    int i;
+
+    b &= 7;
+    for (i = 0; i < 64; i += 8) {
+        int64_t ae = (int8_t)(a >> i);
+        r |= ((ae >> b) & 0xff) << i;
+    }
+    return r;
+}