POWER: Add support for the Power ISA

This adds support for the 32-bit, big endian Power ISA. This supports both
integer and floating point instructions based on the Power ISA Book I v2.06.

1 files changed, 62 insertions, 0 deletions

diff --git a/src/arch/power/insts/static_inst.cc b/src/arch/power/insts/static_inst.cc
new file mode 100644
index 000000000..1982744bf
--- /dev/null
+++ b/src/arch/power/insts/static_inst.cc
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2009 The University of Edinburgh
+ * All rights reserved.
+ *
+ * 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: Timothy M. Jones
+ */
+
+#include "arch/power/insts/static_inst.hh"
+
+using namespace PowerISA;
+
+void
+PowerStaticInst::printReg(std::ostream &os, int reg) const
+{
+    if (reg < FP_Base_DepTag) {
+        ccprintf(os, "r%d", reg);
+    } else if (reg < Ctrl_Base_DepTag) {
+        ccprintf(os, "f%d", reg - FP_Base_DepTag);
+    } else {
+        switch (reg - Ctrl_Base_DepTag) {
+        case 0: ccprintf(os, "cr"); break;
+        case 1: ccprintf(os, "xer"); break;
+        case 2: ccprintf(os, "lr"); break;
+        case 3: ccprintf(os, "ctr"); break;
+        default: ccprintf(os, "unknown_reg");
+        }
+    }
+}
+
+std::string
+PowerStaticInst::generateDisassembly(Addr pc,
+                                       const SymbolTable *symtab) const
+{
+    std::stringstream ss;
+
+    ccprintf(ss, "%-10s ", mnemonic);
+
+    return ss.str();
+}