| /* |
| * 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; |
| } |
| } |