--- /dev/null
+/// Copyright (c) 2009 The Regents of The University of Michigan
+// All rights reserved.
+//
+// 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.
+//
+// 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
+
+def template MediaOpExecute {{
+ Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Fault fault = NoFault;
+
+ %(op_decl)s;
+ %(op_rd)s;
+
+ %(code)s;
+
+ //Write the resulting state to the execution context
+ if(fault == NoFault)
+ {
+ %(op_wb)s;
+ }
+ return fault;
+ }
+}};
+
+def template MediaOpRegDeclare {{
+ class %(class_name)s : public %(base_class)s
+ {
+ protected:
+ void buildMe();
+
+ public:
+ %(class_name)s(ExtMachInst _machInst,
+ const char * instMnem,
+ bool isMicro, bool isDelayed, bool isFirst, bool isLast,
+ InstRegIndex _src1, InstRegIndex _src2, InstRegIndex _dest,
+ uint8_t _srcSize, uint8_t _destSize, uint16_t _sel);
+
+ %(class_name)s(ExtMachInst _machInst,
+ const char * instMnem,
+ InstRegIndex _src1, InstRegIndex _src2, InstRegIndex _dest,
+ uint8_t _srcSize, uint8_t _destSize, uint16_t _sel);
+
+ %(BasicExecDeclare)s
+ };
+}};
+
+def template MediaOpImmDeclare {{
+
+ class %(class_name)s : public %(base_class)s
+ {
+ protected:
+ void buildMe();
+
+ public:
+ %(class_name)s(ExtMachInst _machInst,
+ const char * instMnem,
+ bool isMicro, bool isDelayed, bool isFirst, bool isLast,
+ InstRegIndex _src1, uint16_t _imm8, InstRegIndex _dest,
+ uint8_t _srcSize, uint8_t _destSize, uint16_t _sel);
+
+ %(class_name)s(ExtMachInst _machInst,
+ const char * instMnem,
+ InstRegIndex _src1, uint16_t _imm8, InstRegIndex _dest,
+ uint8_t _srcSize, uint8_t _destSize, uint16_t _sel);
+
+ %(BasicExecDeclare)s
+ };
+}};
+
+def template MediaOpRegConstructor {{
+
+ inline void %(class_name)s::buildMe()
+ {
+ %(constructor)s;
+ }
+
+ inline %(class_name)s::%(class_name)s(
+ ExtMachInst machInst, const char * instMnem,
+ InstRegIndex _src1, InstRegIndex _src2, InstRegIndex _dest,
+ uint8_t _srcSize, uint8_t _destSize, uint16_t _sel) :
+ %(base_class)s(machInst, "%(mnemonic)s", instMnem,
+ false, false, false, false,
+ _src1, _src2, _dest, _srcSize, _destSize, _sel,
+ %(op_class)s)
+ {
+ buildMe();
+ }
+
+ inline %(class_name)s::%(class_name)s(
+ ExtMachInst machInst, const char * instMnem,
+ bool isMicro, bool isDelayed, bool isFirst, bool isLast,
+ InstRegIndex _src1, InstRegIndex _src2, InstRegIndex _dest,
+ uint8_t _srcSize, uint8_t _destSize, uint16_t _sel) :
+ %(base_class)s(machInst, "%(mnemonic)s", instMnem,
+ isMicro, isDelayed, isFirst, isLast,
+ _src1, _src2, _dest, _srcSize, _destSize, _sel,
+ %(op_class)s)
+ {
+ buildMe();
+ }
+}};
+
+def template MediaOpImmConstructor {{
+
+ inline void %(class_name)s::buildMe()
+ {
+ %(constructor)s;
+ }
+
+ inline %(class_name)s::%(class_name)s(
+ ExtMachInst machInst, const char * instMnem,
+ InstRegIndex _src1, uint16_t _imm8, InstRegIndex _dest,
+ uint8_t _srcSize, uint8_t _destSize, uint16_t _sel) :
+ %(base_class)s(machInst, "%(mnemonic)s", instMnem,
+ false, false, false, false,
+ _src1, _imm8, _dest, _srcSize, _destSize, _sel,
+ %(op_class)s)
+ {
+ buildMe();
+ }
+
+ inline %(class_name)s::%(class_name)s(
+ ExtMachInst machInst, const char * instMnem,
+ bool isMicro, bool isDelayed, bool isFirst, bool isLast,
+ InstRegIndex _src1, uint16_t _imm8, InstRegIndex _dest,
+ uint8_t _srcSize, uint8_t _destSize, uint16_t _sel) :
+ %(base_class)s(machInst, "%(mnemonic)s", instMnem,
+ isMicro, isDelayed, isFirst, isLast,
+ _src1, _imm8, _dest, _srcSize, _destSize, _sel,
+ %(op_class)s)
+ {
+ buildMe();
+ }
+}};
+
+let {{
+ # Make these empty strings so that concatenating onto
+ # them will always work.
+ header_output = ""
+ decoder_output = ""
+ exec_output = ""
+
+ immTemplates = (
+ MediaOpImmDeclare,
+ MediaOpImmConstructor,
+ MediaOpExecute)
+
+ regTemplates = (
+ MediaOpRegDeclare,
+ MediaOpRegConstructor,
+ MediaOpExecute)
+
+ class MediaOpMeta(type):
+ def buildCppClasses(self, name, Name, suffix, code):
+
+ # Globals to stick the output in
+ global header_output
+ global decoder_output
+ global exec_output
+
+ # If op2 is used anywhere, make register and immediate versions
+ # of this code.
+ matcher = re.compile("(?<!\\w)(?P<prefix>s?)op2(?P<typeQual>\\.\\w+)?")
+ match = matcher.search(code)
+ if match:
+ typeQual = ""
+ if match.group("typeQual"):
+ typeQual = match.group("typeQual")
+ src2_name = "%spsrc2%s" % (match.group("prefix"), typeQual)
+ self.buildCppClasses(name, Name, suffix,
+ matcher.sub(src2_name, code))
+ self.buildCppClasses(name + "i", Name, suffix + "Imm",
+ matcher.sub("imm8", code))
+ return
+
+ base = "X86ISA::MediaOp"
+
+ # If imm8 shows up in the code, use the immediate templates, if
+ # not, hopefully the register ones will be correct.
+ matcher = re.compile("(?<!\w)imm8(?!\w)")
+ if matcher.search(code):
+ base += "Imm"
+ templates = immTemplates
+ else:
+ base += "Reg"
+ templates = regTemplates
+
+ # Get everything ready for the substitution
+ iop = InstObjParams(name, Name + suffix, base, {"code" : code})
+
+ # Generate the actual code (finally!)
+ header_output += templates[0].subst(iop)
+ decoder_output += templates[1].subst(iop)
+ exec_output += templates[2].subst(iop)
+
+
+ def __new__(mcls, Name, bases, dict):
+ abstract = False
+ name = Name.lower()
+ if "abstract" in dict:
+ abstract = dict['abstract']
+ del dict['abstract']
+
+ cls = super(MediaOpMeta, mcls).__new__(mcls, Name, bases, dict)
+ if not abstract:
+ cls.className = Name
+ cls.base_mnemonic = name
+ code = cls.code
+
+ # Set up the C++ classes
+ mcls.buildCppClasses(cls, name, Name, "", code)
+
+ # Hook into the microassembler dict
+ global microopClasses
+ microopClasses[name] = cls
+
+ # If op2 is used anywhere, make register and immediate versions
+ # of this code.
+ matcher = re.compile("op2(?P<typeQual>\\.\\w+)?")
+ if matcher.search(code):
+ microopClasses[name + 'i'] = cls
+ return cls
+
+
+ class MediaOp(X86Microop):
+ __metaclass__ = MediaOpMeta
+ # This class itself doesn't act as a microop
+ abstract = True
+
+ def __init__(self, dest, src1, op2,
+ size = None, destSize = None, srcSize = None, sel = None):
+ self.dest = dest
+ self.src1 = src1
+ self.op2 = op2
+ if size is not None:
+ self.srcSize = size
+ self.destSize = size
+ if srcSize is not None:
+ self.srcSize = srcSize
+ if destSize is not None:
+ self.destSize = destSize
+ if self.srcSize is None:
+ raise Exception, "Source size not set."
+ if self.destSize is None:
+ raise Exception, "Dest size not set."
+ if sel is None:
+ self.sel = 0
+ else:
+ self.sel = sel
+
+ def getAllocator(self, *microFlags):
+ className = self.className
+ if self.mnemonic == self.base_mnemonic + 'i':
+ className += "Imm"
+ allocator = '''new %(class_name)s(machInst, macrocodeBlock
+ %(flags)s, %(src1)s, %(op2)s, %(dest)s,
+ %(srcSize)s, %(destSize)s, %(sel)s)''' % {
+ "class_name" : className,
+ "flags" : self.microFlagsText(microFlags),
+ "src1" : self.src1, "op2" : self.op2,
+ "dest" : self.dest,
+ "srcSize" : self.srcSize,
+ "destSize" : self.destSize,
+ "sel" : self.sel}
+ return allocator
+
+ class Mov2int(MediaOp):
+ def __init__(self, dest, src, \
+ size = None, destSize = None, srcSize = None, sel = None):
+ super(Mov2int, self).__init__(dest, src,\
+ "InstRegIndex(0)", size, destSize, srcSize, sel)
+ code = '''
+ uint64_t fpSrcReg1 = bits(FpSrcReg1.uqw, srcSize * 8 - 1, 0);
+ DestReg = merge(DestReg, fpSrcReg1, destSize);
+ '''
+
+ class Mov2fp(MediaOp):
+ def __init__(self, dest, src, \
+ size = None, destSize = None, srcSize = None, sel = None):
+ super(Mov2fp, self).__init__(dest, src,\
+ "InstRegIndex(0)", size, destSize, srcSize, sel)
+ code = '''
+ uint64_t srcReg1 = pick(SrcReg1, 0, srcSize);
+ FpDestReg.uqw =
+ insertBits(FpDestReg.uqw, destSize * 8 - 1, 0, srcReg1);
+ '''
+}};
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