diff options
Diffstat (limited to 'src/arch/x86/isa')
| -rw-r--r-- | src/arch/x86/isa/decoder/one_byte_opcodes.isa | 8 | ||||
| -rw-r--r-- | src/arch/x86/isa/microasm.isa | 53 | ||||
| -rw-r--r-- | src/arch/x86/isa/microops/base.isa | 172 | ||||
| -rw-r--r-- | src/arch/x86/isa/microops/microops.isa | 5 | ||||
| -rw-r--r-- | src/arch/x86/isa/operands.isa | 6 |
5 files changed, 216 insertions, 28 deletions
diff --git a/src/arch/x86/isa/decoder/one_byte_opcodes.isa b/src/arch/x86/isa/decoder/one_byte_opcodes.isa index 938904bc1..fed6dda28 100644 --- a/src/arch/x86/isa/decoder/one_byte_opcodes.isa +++ b/src/arch/x86/isa/decoder/one_byte_opcodes.isa @@ -61,8 +61,8 @@ 0x1: decode OPCODE_OP_TOP5 { format WarnUnimpl { 0x00: decode OPCODE_OP_BOTTOM3 { - 0x4: Inst::addI(rAl,Ib); - 0x5: Inst::addI(rAx,Iz); + 0x4: Inst::add(rAl,Ib); + 0x5: Inst::add(rAx,Iz); 0x6: push_ES(); 0x7: pop_ES(); default: MultiInst::add(OPCODE_OP_BOTTOM3, @@ -123,8 +123,8 @@ 0x7: das(); } 0x06: decode OPCODE_OP_BOTTOM3 { - 0x4: Inst::xorI(rAl,Ib); - 0x5: Inst::xorI(rAx,Iz); + 0x4: Inst::xor(rAl,Ib); + 0x5: Inst::xor(rAx,Iz); 0x6: M5InternalError::error( {{"Tried to execute the SS segment override prefix!"}}); 0x7: aaa(); diff --git a/src/arch/x86/isa/microasm.isa b/src/arch/x86/isa/microasm.isa index 6d428881e..b94b55aab 100644 --- a/src/arch/x86/isa/microasm.isa +++ b/src/arch/x86/isa/microasm.isa @@ -135,36 +135,35 @@ let {{ opNum = len(opTypes) - 1 # A regular expression to find the operand placeholders we're # interested in. - opRe = re.compile("%%(?P<operandNum>%d)(?=[^0-9]|$)" % opNum) + opRe = re.compile("\\^(?P<operandNum>%d)(?=[^0-9]|$)" % opNum) # Parse the operand type strign we're working with - print "About to parse tag %s" % opTypes[opNum] opType = OpType(opTypes[opNum]) if opType.reg: #Figure out what to do with fixed register operands if opType.reg in ("Ax", "Bx", "Cx", "Dx"): - code = opRe.sub("{INTREG_R%s}" % opType.reg.upper(), code) + code = opRe.sub("%%{INTREG_R%s}" % opType.reg.upper(), code) elif opType.reg == "Al": # We need a way to specify register width - code = opRe.sub("{INTREG_RAX}", code) + code = opRe.sub("%{INTREG_RAX}", code) else: print "Didn't know how to encode fixed register %s!" % opType.reg elif opType.tag == None or opType.size == None: raise Exception, "Problem parsing operand tag: %s" % opType.tag elif opType.tag in ("C", "D", "G", "P", "S", "T", "V"): # Use the "reg" field of the ModRM byte to select the register - code = opRe.sub("{(uint8_t)MODRM_REG}", code) + code = opRe.sub("%{(uint8_t)MODRM_REG}", code) elif opType.tag in ("E", "Q", "W"): # This might refer to memory or to a register. We need to # divide it up farther. - regCode = opRe.sub("{(uint8_t)MODRM_RM}", code) + regCode = opRe.sub("%{(uint8_t)MODRM_RM}", code) regTypes = copy.copy(opTypes) regTypes.pop(-1) # This needs to refer to memory, but we'll fill in the details # later. It needs to take into account unaligned memory # addresses. - memCode = opRe.sub("0", code) + memCode = opRe.sub("%0", code) memTypes = copy.copy(opTypes) memTypes.pop(-1) return doSplitDecode(name, Name, specializeInst, "MODRM_MOD", @@ -172,16 +171,16 @@ let {{ elif opType.tag in ("I", "J"): # Immediates are already in the instruction, so don't leave in # those parameters - code = opRe.sub("", code) + code = opRe.sub("${IMMEDIATE}", code) elif opType.tag == "M": # This needs to refer to memory, but we'll fill in the details # later. It needs to take into account unaligned memory # addresses. - code = opRe.sub("0", code) + code = opRe.sub("%0", code) elif opType.tag in ("PR", "R", "VR"): # There should probably be a check here to verify that mod # is equal to 11b - code = opRe.sub("{(uint8_t)MODRM_RM}", code) + code = opRe.sub("%{(uint8_t)MODRM_RM}", code) else: raise Exception, "Unrecognized tag %s." % opType.tag opTypes.pop(-1) @@ -223,16 +222,24 @@ let {{ def getAllocator(self, *microFlags): args = '' + signature = "<" + emptySig = True for arg in self.args: - if arg.has_key("operandConst"): - args += ", %s" % arg["operandConst"] - elif arg.has_key("operandCode"): - args += ", %s" % arg["operandCode"] + if not emptySig: + signature += ", " + emptySig = False + if arg.has_key("operandImm"): + args += ", %s" % arg["operandImm"] + signature += ImmOpType + elif arg.has_key("operandReg"): + args += ", %s" % arg["operandReg"] + signature += RegOpType elif arg.has_key("operandLabel"): raise Exception, "Found a label while creating allocator string." else: raise Exception, "Unrecognized operand type." - return 'new %s(machInst%s%s)' % (self.className, self.microFlagsText(microFlags), args) + signature += ">" + return 'new %s%s(machInst%s%s)' % (self.className, signature, self.microFlagsText(microFlags), args) }}; let {{ @@ -260,7 +267,7 @@ let{{ # time. Each expression expects the thing it's looking for to be at # the beginning of the line, so the previous component is stripped # before continuing. - labelRe = re.compile(r'^[ \t]*(?P<label>[a-zA-Z_]\w*)[ \t]:') + labelRe = re.compile(r'^[ \t]*(?P<label>\w\w*)[ \t]:') lineRe = re.compile(r'^(?P<line>[^\n][^\n]*)$') classRe = re.compile(r'^[ \t]*(?P<className>[a-zA-Z_]\w*)') # This recognizes three different flavors of operands: @@ -271,7 +278,12 @@ let{{ # underscore, which is optionally followed by a sequence of # capital or small letters, underscores, or digts between 0 and 9 opRe = re.compile( \ - r'^[ \t]*((?P<operandLabel>[a-zA-Z_]\w*)|(?P<operandConst>[0-9][0-9]*)|(\{(?P<operandCode>[^}]*)\}))') + r'^[ \t]*((\@(?P<operandLabel0>\w\w*))|' + + r'(\@\{(?P<operandLabel1>[^}]*)\})|' + + r'(\%(?P<operandReg0>\w\w*))|' + + r'(\%\{(?P<operandReg1>[^}]*)\})|' + + r'(\$(?P<operandImm0>\w\w*))|' + + r'(\$\{(?P<operandImm1>[^}]*)\}))') lineMatch = lineRe.search(code) while lineMatch != None: statement = MicroOpStatement() @@ -310,9 +322,10 @@ let{{ # representations of operand values. Different forms might be # needed in different places, for instance to replace a label # with an offset. - for opType in ("operandLabel", "operandConst", "operandCode"): + for opType in ("operandLabel0", "operandReg0", "operandImm0", + "operandLabel1", "operandReg1", "operandImm1"): if opMatch.group(opType): - statement.args[-1][opType] = opMatch.group(opType) + statement.args[-1][opType[:-1]] = opMatch.group(opType) if len(statement.args[-1]) == 0: print "Problem parsing operand in statement: %s" \ % orig_line @@ -338,7 +351,7 @@ let{{ # This is assuming that intra microcode branches go to # the next micropc + displacement, or # micropc + 1 + displacement. - arg["operandConst"] = labels[arg["operandLabel"]] - micropc - 1 + arg["operandImm"] = labels[arg["operandLabel"]] - micropc - 1 micropc += 1 return statements }}; diff --git a/src/arch/x86/isa/microops/base.isa b/src/arch/x86/isa/microops/base.isa new file mode 100644 index 000000000..b1351d999 --- /dev/null +++ b/src/arch/x86/isa/microops/base.isa @@ -0,0 +1,172 @@ +// -*- mode:c++ -*- + +// 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 + +//The operand types a microop template can be specialized with +output header {{ + enum OperandType { + RegisterOperand, + ImmediateOperand + }; +}}; + +//A class which is the base of all x86 micro ops it provides a function to +//set necessary flags appropriately. +output header {{ + class X86MicroOpBase : public X86StaticInst + { + protected: + X86MicroOpBase(bool isMicro, bool isDelayed, + bool isFirst, bool isLast, + const char *mnem, ExtMachInst _machInst, + OpClass __opClass) : + X86StaticInst(mnem, _machInst, __opClass) + { + flags[IsMicroOp] = isMicro; + flags[IsDelayedCommit] = isDelayed; + flags[IsFirstMicroOp] = isFirst; + flags[IsLastMicroOp] = isLast; + } + }; +}}; + +// This sets up a class which is templated on the type of +// arguments a particular flavor of a microcode instruction +// can accept. It's parameters are specialized to create polymorphic +// behavior in microops. +def template BaseMicroOpTemplateDeclare {{ + template%(signature)s + class %(class_name)s; +}}; + +let {{ + def buildBaseMicroOpTemplate(Name, numParams): + signature = "<" + signature += "int SignatureOperandTypeSpecifier0" + for count in xrange(1,numParams): + signature += \ + ", int SingatureOperandTypeSpecifier%d" % count + signature += ">" + subs = {"signature" : signature, "class_name" : Name} + return BaseMicroOpTemplateDeclare.subst(subs) + + RegOpType = "RegisterOperand" + ImmOpType = "ImmediateOperand" + + def buildMicroOpTemplateDict(*params): + signature = "<" + if len(params): + signature += params[0] + if len(params) > 1: + for param in params[1:]: + signature += ", %s" % param + signature += ">" + subs = {"param_dec" : "", "param_arg_dec" : "", + "param_init" : "", "signature" : signature} + for count in xrange(len(params)): + subs["param_dec"] += "uint64_t param%d;\n" % count + subs["param_arg_dec"] += ", uint64_t _param%d" % count + subs["param_init"] += ", param%d(_param%d)" % (count, count) + return subs +}}; + +// A tmeplate for building a specialized version of the microcode +// instruction which knows specifies which arguments it wants +def template MicroOpDeclare {{ + template<> + class %(class_name)s%(signature)s : public X86MicroOpBase + { + protected: + %(param_dec)s + void buildMe(); + + public: + %(class_name)s(bool isMicro, bool isDelayed, + bool isFirst, bool isLast, + ExtMachInst _machInst %(param_arg_dec)s); + + %(class_name)s(ExtMachInst _machInst %(param_arg_dec)s); + + %(BasicExecDeclare)s + }; +}}; + +def template MicroOpConstructor {{ + + inline void %(class_name)s%(signature)s::buildMe() + { + %(constructor)s; + } + + inline %(class_name)s%(signature)s::%(class_name)s( + ExtMachInst machInst %(param_arg_dec)s) : + %(base_class)s(false, false, false, false, + "%(mnemonic)s", machInst, %(op_class)s) + %(param_init)s + { + buildMe(); + } + + inline %(class_name)s%(signature)s::%(class_name)s( + bool isMicro, bool isDelayed, bool isFirst, bool isLast, + ExtMachInst machInst %(param_arg_dec)s) + : %(base_class)s(isMicro, isDelayed, isFirst, isLast, + "%(mnemonic)s", machInst, %(op_class)s) + %(param_init)s + { + buildMe(); + } +}}; diff --git a/src/arch/x86/isa/microops/microops.isa b/src/arch/x86/isa/microops/microops.isa index bbf26f605..bb136fc81 100644 --- a/src/arch/x86/isa/microops/microops.isa +++ b/src/arch/x86/isa/microops/microops.isa @@ -53,5 +53,8 @@ // // Authors: Gabe Black -//Micro ops +//Common microop stuff +##include "base.isa" + +//Integer microop definitions ##include "int.isa" diff --git a/src/arch/x86/isa/operands.isa b/src/arch/x86/isa/operands.isa index 36b0ee4df..af469ab3d 100644 --- a/src/arch/x86/isa/operands.isa +++ b/src/arch/x86/isa/operands.isa @@ -96,7 +96,7 @@ def operand_types {{ }}; def operands {{ - 'IntRegOp0': ('IntReg', 'udw', 'regIndex0', 'IsInteger', 1), - 'IntRegOp1': ('IntReg', 'udw', 'regIndex1', 'IsInteger', 2), - 'IntRegOp2': ('IntReg', 'udw', 'regIndex2', 'IsInteger', 2), + 'IntRegOp0': ('IntReg', 'udw', 'param0', 'IsInteger', 1), + 'IntRegOp1': ('IntReg', 'udw', 'param1', 'IsInteger', 2), + 'IntRegOp2': ('IntReg', 'udw', 'param2', 'IsInteger', 2), }}; |