diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/x86/isa/microasm.isa | 28 | ||||
| -rw-r--r-- | src/arch/x86/segmentregs.hh | 76 |
2 files changed, 104 insertions, 0 deletions
diff --git a/src/arch/x86/isa/microasm.isa b/src/arch/x86/isa/microasm.isa index 50addb33f..4e06f4391 100644 --- a/src/arch/x86/isa/microasm.isa +++ b/src/arch/x86/isa/microasm.isa @@ -72,5 +72,33 @@ let {{ from micro_asm import MicroAssembler, Rom_Macroop, Rom mainRom = Rom('main ROM') assembler = MicroAssembler(X86Macroop, microopClasses, mainRom, Rom_Macroop) + # Add in symbols for the microcode registers + for num in range(15): + assembler.symbols["t%d" % num] = "NUM_INTREGS+%d" % num + # Add in symbols for the segment descriptor registers + for letter in ("C", "D", "E", "F", "G", "S"): + assembler.symbols["%ss" % letter.lower()] = "SEGMENT_REG_%sS" % letter + # Miscellaneous symbols + symbols = { + "reg" : "env.reg", + "regm" : "env.regm", + "imm" : "IMMEDIATE", + "disp" : "DISPLACEMENT", + "scale" : "env.scale", + "index" : "env.index", + "base" : "env.base", + "dsz" : "env.dataSize", + "osz" : "env.operandSize", + "ssz" : "env.stackSize" + } + assembler.symbols.update(symbols) + + # Code literal which forces a default 64 bit operand size in 64 bit mode. + assembler.symbols["oszIn64Override"] = ''' + if (machInst.mode.submode == SixtyFourBitMode && + env.dataSize == 4) + env.dataSize = 8; + ''' + macroopDict = assembler.assemble(microcode) }}; diff --git a/src/arch/x86/segmentregs.hh b/src/arch/x86/segmentregs.hh new file mode 100644 index 000000000..9fd9bcb0e --- /dev/null +++ b/src/arch/x86/segmentregs.hh @@ -0,0 +1,76 @@ +/* + * 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 + */ + +#ifndef __ARCH_X86_SEGMENTREGS_HH__ +#define __ARCH_X86_SEGMENTREGS_HH__ + +namespace X86ISA +{ + enum SegmentRegIndex + { + SEGMENT_REG_ES, + SEGMENT_REG_CS, + SEGMENT_REG_SS, + SEGMENT_REG_DS, + SEGMENT_REG_FS, + SEGMENT_REG_GS, + + NUM_SEGMENTREGS + }; +}; + +#endif // __ARCH_X86_SEGMENTREGS_HH__ |