// 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 license below extends only to copyright in the software and shall
+// not be construed as granting a license to any other intellectual
+// property including but not limited to intellectual property relating
+// to a hardware implementation of the functionality of the software
+// licensed hereunder. You may use the software subject to the license
+// terms below provided that you ensure that this notice is replicated
+// unmodified and in its entirety in all distributions of the software,
+// modified or unmodified, in source code or in binary form.
//
-// 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
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met: 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 holders 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 without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
output header {{
// Base class for combinationally generated macroops
- class Macroop : public StaticInst
+ class Macroop : public X86ISA::MacroopBase
{
- protected:
- const uint32_t numMicroops;
-
- //Constructor.
+ public:
Macroop(const char *mnem, ExtMachInst _machInst,
- uint32_t _numMicroops)
- : StaticInst(mnem, _machInst, No_OpClass),
- numMicroops(_numMicroops)
- {
- assert(numMicroops);
- microops = new StaticInstPtr[numMicroops];
- flags[IsMacroop] = true;
- }
-
- ~Macroop()
- {
- delete [] microops;
- }
-
- StaticInstPtr * microops;
-
- StaticInstPtr fetchMicroop(MicroPC microPC)
- {
- assert(microPC < numMicroops);
- return microops[microPC];
- }
-
- std::string generateDisassembly(Addr pc,
- const SymbolTable *symtab) const
- {
- return mnemonic;
- }
-
+ uint32_t _numMicroops, X86ISA::EmulEnv _env)
+ : MacroopBase(mnem, _machInst, _numMicroops, _env)
+ {}
%(MacroExecPanic)s
};
}};
*/
class %(class_name)s : public %(base_class)s
{
+ private:
+ %(declareLabels)s
public:
// Constructor.
- %(class_name)s(ExtMachInst machInst, X86ISA::EmulEnv env);
+ %(class_name)s(ExtMachInst machInst, X86ISA::EmulEnv _env);
+
+ std::string
+ generateDisassembly(Addr pc, const SymbolTable *symtab) const;
};
- };
+ }
+}};
+
+def template MacroDisassembly {{
+ std::string
+ X86Macroop::%(class_name)s::generateDisassembly(Addr pc,
+ const SymbolTable *symtab) const
+ {
+ std::stringstream out;
+ out << mnemonic << "\t";
+
+ int regSize = %(regSize)s;
+ %(disassembly)s
+ // Shut up gcc.
+ regSize = regSize;
+ return out.str();
+ }
}};
// Basic instruction class constructor template.
def template MacroConstructor {{
inline X86Macroop::%(class_name)s::%(class_name)s(
- ExtMachInst machInst, EmulEnv env)
- : %(base_class)s("%(mnemonic)s", machInst, %(num_microops)s)
+ ExtMachInst machInst, EmulEnv _env)
+ : %(base_class)s("%(mnemonic)s", machInst, %(num_microops)s, _env)
{
%(adjust_env)s;
- %(do_modrm)s;
+ %(adjust_imm)s;
+ %(adjust_disp)s;
+ %(init_env)s;
%(constructor)s;
+ const char *macrocodeBlock = "%(class_name)s";
//alloc_microops is the code that sets up the microops
//array in the parent class.
%(alloc_microops)s;
let {{
from micro_asm import Combinational_Macroop, Rom_Macroop
class X86Macroop(Combinational_Macroop):
+ def add_microop(self, mnemonic, microop):
+ microop.mnemonic = mnemonic
+ microop.micropc = len(self.microops)
+ self.microops.append(microop)
def setAdjustEnv(self, val):
self.adjust_env = val
+ def adjustImm(self, val):
+ self.adjust_imm += val
+ def adjustDisp(self, val):
+ self.adjust_disp += val
+ def serializing(self):
+ self.serializing = True
def __init__(self, name):
super(X86Macroop, self).__init__(name)
self.directives = {
- "adjust_env" : self.setAdjustEnv
+ "adjust_env" : self.setAdjustEnv,
+ "adjust_imm" : self.adjustImm,
+ "adjust_disp" : self.adjustDisp,
+ "serializing" : self.serializing
}
self.declared = False
self.adjust_env = ""
- self.doModRM = ""
+ self.init_env = ""
+ self.adjust_imm = '''
+ uint64_t adjustedImm = IMMEDIATE;
+ //This is to pacify gcc in case the immediate isn't used.
+ adjustedImm = adjustedImm;
+ '''
+ self.adjust_disp = '''
+ uint64_t adjustedDisp = DISPLACEMENT;
+ //This is to pacify gcc in case the displacement isn't used.
+ adjustedDisp = adjustedDisp;
+ '''
+ self.serializing = False
def getAllocator(self, env):
- return "new X86Macroop::%s(machInst, %s)" % (self.name, env.getAllocator())
+ return "new X86Macroop::%s(machInst, %s)" % \
+ (self.name, env.getAllocator())
+ def getMnemonic(self):
+ mnemonic = self.name.lower()
+ mnemonic = re.match(r'[^_]*', mnemonic).group(0)
+ return mnemonic
def getDeclaration(self):
#FIXME This first parameter should be the mnemonic. I need to
#write some code which pulls that out
- iop = InstObjParams(self.name, self.name, "Macroop", {"code" : ""})
+ declareLabels = ""
+ for (label, microop) in self.labels.items():
+ declareLabels += "const static uint64_t label_%s = %d;\n" \
+ % (label, microop.micropc)
+ iop = InstObjParams(self.getMnemonic(), self.name, "Macroop",
+ {"code" : "",
+ "declareLabels" : declareLabels
+ })
return MacroDeclare.subst(iop);
- def getDefinition(self):
+ def getDefinition(self, env):
#FIXME This first parameter should be the mnemonic. I need to
#write some code which pulls that out
numMicroops = len(self.microops)
allocMicroops = ''
micropc = 0
for op in self.microops:
+ flags = ["IsMicroop"]
+ if micropc == numMicroops - 1:
+ flags.append("IsLastMicroop")
+ if self.serializing:
+ flags.append("IsSerializing")
+ flags.append("IsSerializeAfter")
+ else:
+ flags.append("IsDelayedCommit")
+ if micropc == 0:
+ flags.append("IsFirstMicroop")
allocMicroops += \
"microops[%d] = %s;\n" % \
- (micropc, op.getAllocator(True, False,
- micropc == 0,
- micropc == numMicroops - 1))
+ (micropc, op.getAllocator(flags))
micropc += 1
- iop = InstObjParams(self.name, self.name, "Macroop",
+ if env.useStackSize:
+ useStackSize = "true"
+ else:
+ useStackSize = "false"
+ if env.memoryInst:
+ memoryInst = "true"
+ else:
+ memoryInst = "false"
+ regSize = '''(%s || (env.base == INTREG_RSP && %s) ?
+ env.stackSize :
+ env.dataSize)''' % (useStackSize, memoryInst)
+ iop = InstObjParams(self.getMnemonic(), self.name, "Macroop",
{"code" : "", "num_microops" : numMicroops,
"alloc_microops" : allocMicroops,
"adjust_env" : self.adjust_env,
- "do_modrm" : self.doModRM})
- return MacroConstructor.subst(iop);
+ "adjust_imm" : self.adjust_imm,
+ "adjust_disp" : self.adjust_disp,
+ "disassembly" : env.disassembly,
+ "regSize" : regSize,
+ "init_env" : self.initEnv})
+ return MacroConstructor.subst(iop) + \
+ MacroDisassembly.subst(iop);
}};
let {{
self.regUsed = False
self.regm = "0"
self.regmUsed = False
+ self.seg = "SEGMENT_REG_DS"
+ self.size = None
self.addressSize = "ADDRSIZE"
self.dataSize = "OPSIZE"
self.stackSize = "STACKSIZE"
self.doModRM = False
+ self.disassembly = ""
+ self.firstArgument = True
+ self.useStackSize = False
+ self.memoryInst = False
+
+ def addToDisassembly(self, code):
+ if not self.firstArgument:
+ self.disassembly += "out << \", \";\n"
+ self.firstArgument = False
+ self.disassembly += code
def getAllocator(self):
+ if self.size == 'b':
+ self.dataSize = 1
+ elif self.size == 'd':
+ self.dataSize = 4
+ #This is for "double plus" which is normally a double word unless
+ #the REX W bit is set, in which case it's a quad word. It's used
+ #for some SSE instructions.
+ elif self.size == 'dp':
+ self.dataSize = "(REX_W ? 8 : 4)"
+ elif self.size == 'q':
+ self.dataSize = 8
+ elif self.size == 'v':
+ self.dataSize = "OPSIZE"
+ elif self.size == 'w':
+ self.dataSize = 2
+ elif self.size == 'z':
+ self.dataSize = "((OPSIZE == 8) ? 4 : OPSIZE)"
+ elif self.size:
+ raise Exception, "Unrecognized size type %s!" % self.size
return '''EmulEnv(%(reg)s,
%(regm)s,
%(dataSize)s,
%(addressSize)s,
%(stackSize)s)''' % \
self.__dict__
+
def addReg(self, reg):
if not self.regUsed:
self.reg = reg
self.regmUsed = True
else:
raise Exception, "EmulEnv is out of register specialization spots."
+ def setSize(self, size):
+ if not self.size:
+ self.size = size
+ else:
+ if self.size != size:
+ raise Exception, "Conflicting register sizes %s and %s!" %\
+ (self.size, size)
}};
let {{
doModRMString = "env.doModRM(machInst);\n"
+ noModRMString = "env.setSeg(machInst);\n"
def genMacroop(Name, env):
blocks = OutputBlocks()
if not macroopDict.has_key(Name):
macroop = macroopDict[Name]
if not macroop.declared:
if env.doModRM:
- macroop.doModRM = doModRMString
+ macroop.initEnv = doModRMString
+ else:
+ macroop.initEnv = noModRMString
blocks.header_output = macroop.getDeclaration()
- blocks.decoder_output = macroop.getDefinition()
+ blocks.decoder_output = macroop.getDefinition(env)
macroop.declared = True
blocks.decode_block = "return %s;\n" % macroop.getAllocator(env)
return blocks
projects / gem5.git / blobdiff