Mercurial > hg > truffle
view graal/com.oracle.max.asmdis/src/com/sun/max/asm/gen/risc/RiscInstructionDescription.java @ 4150:c78bace5086a
start work on integrating old hooks into mx, work on sanity checks
introduce a DB class to access the bench DB in an easier way (create benchmarks and benchmark values automatically in the DB)
author | Gilles Duboscq <gilles.m.duboscq@gmail.com> |
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date | Tue, 20 Dec 2011 15:34:43 +0100 |
parents | e233f5660da4 |
children |
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/* * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.max.asm.gen.risc; import java.util.*; import com.sun.max.asm.gen.*; import com.sun.max.asm.gen.risc.field.*; import com.sun.max.program.*; /** */ public final class RiscInstructionDescription extends InstructionDescription { public RiscInstructionDescription(List<Object> specifications) { super(specifications); int bits = 0; int mask = 0; for (Object specification : specifications) { final RiscField field; if (specification instanceof RiscField) { field = (RiscField) specification; if (field instanceof InputOperandField) { // Cannot recover the value of these fields from an assembled instruction // with support for a simultaneous equation solver beNotDisassemblable(); } } else if (specification instanceof RiscConstant) { field = ((RiscConstant) specification).field(); } else { continue; } bits += field.bitRange().encodedWidth(); final int fieldMask = field.bitRange().instructionMask(); if ((fieldMask & mask) != 0) { throw ProgramError.unexpected("RISC instruction field defines bits also defined by another field: " + field.name() + "[" + field.bitRange() + "]"); } mask |= fieldMask; } if (bits != 32) { throw ProgramError.unexpected("RISC instruction description describes " + bits + " instruction field bits: " + specifications); } } private boolean synthetic; public InstructionDescription beSynthetic() { synthetic = true; return this; } @Override public boolean isSynthetic() { return synthetic; } }