Adding gem5 source to svn.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a

simulators/gem5/src/arch/x86/insts/microop.cc

@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2007 The Hewlett-Packard Development Company
+ * 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
+ */
+
+#include "arch/x86/insts/microop.hh"
+#include "arch/x86/regs/misc.hh"
+
+namespace X86ISA
+{
+
+    bool X86MicroopBase::checkCondition(uint64_t flags, int condition) const
+    {
+        CCFlagBits ccflags = flags;
+        switch(condition)
+        {
+          case ConditionTests::True:
+            return true;
+          case ConditionTests::ECF:
+            return ccflags.ecf;
+          case ConditionTests::EZF:
+            return ccflags.ezf;
+          case ConditionTests::SZnZF:
+            return !(!ccflags.ezf & ccflags.zf);
+          case ConditionTests::MSTRZ:
+            panic("This condition is not implemented!");
+          case ConditionTests::STRZ:
+            panic("This condition is not implemented!");
+          case ConditionTests::MSTRC:
+            panic("This condition is not implemented!");
+          case ConditionTests::STRZnEZF:
+            return !ccflags.ezf & ccflags.zf;
+                //And no interrupts or debug traps are waiting
+          case ConditionTests::OF:
+            return ccflags.of;
+          case ConditionTests::CF:
+            return ccflags.cf;
+          case ConditionTests::ZF:
+            return ccflags.zf;
+          case ConditionTests::CvZF:
+            return ccflags.cf | ccflags.zf;
+          case ConditionTests::SF:
+            return ccflags.sf;
+          case ConditionTests::PF:
+            return ccflags.pf;
+          case ConditionTests::SxOF:
+            return ccflags.sf ^ ccflags.of;
+          case ConditionTests::SxOvZF:
+            return (ccflags.sf ^ ccflags.of) | ccflags.zf;
+          case ConditionTests::False:
+            return false;
+          case ConditionTests::NotECF:
+            return !ccflags.ecf;
+          case ConditionTests::NotEZF:
+            return !ccflags.ezf;
+          case ConditionTests::NotSZnZF:
+            return !ccflags.ezf & ccflags.zf;
+          case ConditionTests::NotMSTRZ:
+            panic("This condition is not implemented!");
+          case ConditionTests::NotSTRZ:
+            panic("This condition is not implemented!");
+          case ConditionTests::NotMSTRC:
+            panic("This condition is not implemented!");
+          case ConditionTests::STRnZnEZF:
+            return !ccflags.ezf & !ccflags.zf;
+                //And no interrupts or debug traps are waiting
+          case ConditionTests::NotOF:
+            return !ccflags.of;
+          case ConditionTests::NotCF:
+            return !ccflags.cf;
+          case ConditionTests::NotZF:
+            return !ccflags.zf;
+          case ConditionTests::NotCvZF:
+            return !(ccflags.cf | ccflags.zf);
+          case ConditionTests::NotSF:
+            return !ccflags.sf;
+          case ConditionTests::NotPF:
+            return !ccflags.pf;
+          case ConditionTests::NotSxOF:
+            return !(ccflags.sf ^ ccflags.of);
+          case ConditionTests::NotSxOvZF:
+            return !((ccflags.sf ^ ccflags.of) | ccflags.zf);
+        }
+        panic("Unknown condition: %d\n", condition);
+        return true;
+    }
+}