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authorGabe Black <gblack@eecs.umich.edu>2007-09-19 18:27:55 -0700
committerGabe Black <gblack@eecs.umich.edu>2007-09-19 18:27:55 -0700
commita75b6f51060ceaa52014aa4dd6aadc6ca83365f8 (patch)
treea8da313b6cf771f07ab0e1b795ea6be3137d4e29 /src/arch/x86/insts/microop.cc
parentf3f3747431e001dc6c80da5b6489516b610c22d6 (diff)
downloadgem5-a75b6f51060ceaa52014aa4dd6aadc6ca83365f8.tar.xz
X86: Move the fp microops to their own file with their own base classes in C++ and python.
--HG-- extra : convert_revision : 9cd223f2005adb36fea2bb56fa39793a58ec958c
Diffstat (limited to 'src/arch/x86/insts/microop.cc')
-rw-r--r--src/arch/x86/insts/microop.cc139
1 files changed, 139 insertions, 0 deletions
diff --git a/src/arch/x86/insts/microop.cc b/src/arch/x86/insts/microop.cc
new file mode 100644
index 000000000..6caa27f36
--- /dev/null
+++ b/src/arch/x86/insts/microop.cc
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2007 The Hewlett-Packard Development Company
+ * All rights reserved.
+ *
+ * Redistribution and use of this software in source and binary forms,
+ * with or without modification, are permitted provided that the
+ * following conditions are met:
+ *
+ * The software must be used only for Non-Commercial Use which means any
+ * use which is NOT directed to receiving any direct monetary
+ * compensation for, or commercial advantage from such use. Illustrative
+ * examples of non-commercial use are academic research, personal study,
+ * teaching, education and corporate research & development.
+ * Illustrative examples of commercial use are distributing products for
+ * commercial advantage and providing services using the software for
+ * commercial advantage.
+ *
+ * If you wish to use this software or functionality therein that may be
+ * covered by patents for commercial use, please contact:
+ * Director of Intellectual Property Licensing
+ * Office of Strategy and Technology
+ * Hewlett-Packard Company
+ * 1501 Page Mill Road
+ * Palo Alto, California 94304
+ *
+ * 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 HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission. No right of
+ * sublicense is granted herewith. Derivatives of the software and
+ * output created using the software may be prepared, but only for
+ * Non-Commercial Uses. Derivatives of the software may be shared with
+ * others provided: (i) the others agree to abide by the list of
+ * conditions herein which includes the Non-Commercial Use restrictions;
+ * and (ii) such Derivatives of the software include the above copyright
+ * notice to acknowledge the contribution from this software where
+ * applicable, this list of conditions and the disclaimer below.
+ *
+ * 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/miscregs.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;
+ }
+}