ARM: Implement the swp and swpb instructions.

1 files changed, 61 insertions, 0 deletions

diff --git a/src/arch/arm/isa/insts/swap.isa b/src/arch/arm/isa/insts/swap.isa
new file mode 100644
index 000000000..6cbca6d6c
--- /dev/null
+++ b/src/arch/arm/isa/insts/swap.isa
@@ -0,0 +1,61 @@
+// -*- mode:c++ -*-
+
+// Copyright (c) 2010 ARM Limited
+// All rights reserved
+//
+// The license below extends only to copyright in the software and shall
+// not be construed as granting a license to any other intellectual
+// property including but not limited to intellectual property relating
+// to a hardware implementation of the functionality of the software
+// licensed hereunder.  You may use the software subject to the license
+// terms below provided that you ensure that this notice is replicated
+// unmodified and in its entirety in all distributions of the software,
+// modified or unmodified, in source code or in binary form.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met: redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer;
+// redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution;
+// neither the name of the copyright holders nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Authors: Gabe Black
+
+let {{
+
+    header_output = decoder_output = exec_output = ""
+
+    (newHeader,
+     newDecoder,
+     newExec) = SwapBase("swp", "Swp", "EA = Base;",
+                         "Mem = Op1;", "Dest = memData;",
+                         ["Request::MEM_SWAP"], [])
+    header_output += newHeader
+    decoder_output += newDecoder
+    exec_output += newExec
+
+    (newHeader,
+     newDecoder,
+     newExec) = SwapBase("swpb", "Swpb", "EA = Base;",
+                         "Mem.ub = Op1.ub;", "Dest.ub = (uint8_t)memData;",
+                         ["Request::MEM_SWAP"], [])
+    header_output += newHeader
+    decoder_output += newDecoder
+    exec_output += newExec
+}};