5a1dbe4d99
This single parameter replaces the collection of bools that set up various flavors of microops. A flag parameter also allows other flags to be set like the serialize before/after flags, etc., without having to change the constructor.
239 lines
7.8 KiB
Plaintext
239 lines
7.8 KiB
Plaintext
// Copyright (c) 2007-2008 The Hewlett-Packard Development Company
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// All rights reserved.
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//
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// The license below extends only to copyright in the software and shall
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// not be construed as granting a license to any other intellectual
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// property including but not limited to intellectual property relating
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// to a hardware implementation of the functionality of the software
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// licensed hereunder. You may use the software subject to the license
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// terms below provided that you ensure that this notice is replicated
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// unmodified and in its entirety in all distributions of the software,
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// modified or unmodified, in source code or in binary form.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met: redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer;
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// redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution;
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// neither the name of the copyright holders nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Authors: Gabe Black
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//////////////////////////////////////////////////////////////////////////
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//
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// Fault Microop
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//
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//////////////////////////////////////////////////////////////////////////
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output header {{
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class MicroFaultBase : public X86ISA::X86MicroopBase
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{
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protected:
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Fault fault;
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uint8_t cc;
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public:
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MicroFaultBase(ExtMachInst _machInst, const char * instMnem,
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uint64_t setFlags, Fault _fault, uint8_t _cc);
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MicroFaultBase(ExtMachInst _machInst, const char * instMnem,
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Fault _fault, uint8_t _cc);
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std::string generateDisassembly(Addr pc,
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const SymbolTable *symtab) const;
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};
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class MicroHalt : public X86ISA::X86MicroopBase
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{
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public:
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MicroHalt(ExtMachInst _machInst, const char * instMnem,
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uint64_t setFlags) :
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X86MicroopBase(_machInst, "halt", instMnem, setFlags, No_OpClass)
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{
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}
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MicroHalt(ExtMachInst _machInst, const char * instMnem) :
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X86MicroopBase(_machInst, "halt", instMnem, 0, No_OpClass)
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{
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}
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%(BasicExecDeclare)s
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std::string generateDisassembly(Addr pc,
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const SymbolTable *symtab) const;
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};
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}};
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def template MicroFaultDeclare {{
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class %(class_name)s : public %(base_class)s
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{
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private:
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void buildMe();
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public:
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%(class_name)s(ExtMachInst _machInst, const char * instMnem,
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uint64_t setFlags, Fault _fault, uint8_t _cc);
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%(class_name)s(ExtMachInst _machInst, const char * instMnem,
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Fault _fault, uint8_t _cc);
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%(BasicExecDeclare)s
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};
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}};
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def template MicroFaultExecute {{
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Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
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Trace::InstRecord *traceData) const
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{
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%(op_decl)s;
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%(op_rd)s;
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if (%(cond_test)s) {
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//Return the fault we were constructed with
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return fault;
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} else {
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return NoFault;
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}
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}
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}};
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output exec {{
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Fault
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MicroHalt::execute(%(CPU_exec_context)s *xc,
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Trace::InstRecord * traceData) const
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{
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xc->tcBase()->suspend();
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return NoFault;
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}
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}};
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output decoder {{
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inline MicroFaultBase::MicroFaultBase(
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ExtMachInst machInst, const char * instMnem,
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Fault _fault, uint8_t _cc) :
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X86MicroopBase(machInst, "fault", instMnem, 0, No_OpClass),
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fault(_fault), cc(_cc)
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{
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}
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inline MicroFaultBase::MicroFaultBase(
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ExtMachInst machInst, const char * instMnem,
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uint64_t setFlags, Fault _fault, uint8_t _cc) :
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X86MicroopBase(machInst, "fault", instMnem, setFlags, No_OpClass),
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fault(_fault), cc(_cc)
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{
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}
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}};
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def template MicroFaultConstructor {{
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inline void %(class_name)s::buildMe()
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{
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%(constructor)s;
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}
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inline %(class_name)s::%(class_name)s(
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ExtMachInst machInst, const char * instMnem,
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Fault _fault, uint8_t _cc) :
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%(base_class)s(machInst, instMnem, _fault, _cc)
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{
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buildMe();
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}
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inline %(class_name)s::%(class_name)s(
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ExtMachInst machInst, const char * instMnem, uint64_t setFlags,
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Fault _fault, uint8_t _cc) :
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%(base_class)s(machInst, instMnem, setFlags, _fault, _cc)
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{
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buildMe();
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}
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}};
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output decoder {{
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std::string MicroFaultBase::generateDisassembly(Addr pc,
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const SymbolTable *symtab) const
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{
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std::stringstream response;
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printMnemonic(response, instMnem, mnemonic);
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if(fault)
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response << fault->name();
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else
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response << "No Fault";
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return response.str();
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}
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std::string MicroHalt::generateDisassembly(Addr pc,
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const SymbolTable *symtab) const
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{
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std::stringstream response;
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printMnemonic(response, instMnem, mnemonic);
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return response.str();
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}
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}};
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let {{
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class Fault(X86Microop):
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className = "MicroFault"
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def __init__(self, fault, flags=None):
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self.fault = fault
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if flags:
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if not isinstance(flags, (list, tuple)):
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raise Exception, "flags must be a list or tuple of flags"
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self.cond = " | ".join(flags)
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self.className += "Flags"
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else:
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self.cond = "0"
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def getAllocator(self, microFlags):
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allocator = '''new %(class_name)s(machInst, macrocodeBlock,
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%(flags)s, %(fault)s, %(cc)s)''' % {
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"class_name" : self.className,
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"flags" : self.microFlagsText(microFlags),
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"fault" : self.fault,
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"cc" : self.cond}
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return allocator
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iop = InstObjParams("fault", "MicroFaultFlags", "MicroFaultBase",
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{"code": "",
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"cond_test": "checkCondition(ccFlagBits, cc)"})
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exec_output = MicroFaultExecute.subst(iop)
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header_output = MicroFaultDeclare.subst(iop)
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decoder_output = MicroFaultConstructor.subst(iop)
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iop = InstObjParams("fault", "MicroFault", "MicroFaultBase",
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{"code": "",
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"cond_test": "true"})
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exec_output += MicroFaultExecute.subst(iop)
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header_output += MicroFaultDeclare.subst(iop)
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decoder_output += MicroFaultConstructor.subst(iop)
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microopClasses["fault"] = Fault
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class Halt(X86Microop):
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className = "MicroHalt"
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def __init__(self):
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pass
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def getAllocator(self, microFlags):
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return "new MicroHalt(machInst, macrocodeBlock, %s)" % \
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self.microFlagsText(microFlags)
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microopClasses["halt"] = Halt
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}};
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