These are for the trap and branch instructions.
Change-Id: Idedab6f3e6c6c954c1f8a36dae52976cf25ad394
Reviewed-on: https://gem5-review.googlesource.com/5461
Reviewed-by: Gabe Black <gabeblack@google.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>
Import('*')
if env['TARGET_ISA'] == 'sparc':
+ Source('branch.cc')
Source('priv.cc')
Source('static_inst.cc')
+ Source('trap.cc')
--- /dev/null
+/*
+ * Copyright (c) 2006-2007 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
+ * Steve Reinhardt
+ */
+
+#include "arch/sparc/insts/branch.hh"
+
+////////////////////////////////////////////////////////////////////
+//
+// Branch instructions
+//
+
+namespace SparcISA
+{
+
+template class BranchNBits<19>;
+template class BranchNBits<22>;
+template class BranchNBits<30>;
+
+std::string
+Branch::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+{
+ std::stringstream response;
+
+ printMnemonic(response, mnemonic);
+ printRegArray(response, _srcRegIdx, _numSrcRegs);
+ if (_numDestRegs && _numSrcRegs)
+ response << ", ";
+ printDestReg(response, 0);
+
+ return response.str();
+}
+
+std::string
+BranchImm13::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+{
+ std::stringstream response;
+
+ printMnemonic(response, mnemonic);
+ printRegArray(response, _srcRegIdx, _numSrcRegs);
+ if (_numSrcRegs > 0)
+ response << ", ";
+ ccprintf(response, "0x%x", imm);
+ if (_numDestRegs > 0)
+ response << ", ";
+ printDestReg(response, 0);
+
+ return response.str();
+}
+
+std::string
+BranchDisp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+{
+ std::stringstream response;
+ std::string symbol;
+ Addr symbol_addr;
+
+ Addr target = disp + pc;
+
+ printMnemonic(response, mnemonic);
+ ccprintf(response, "0x%x", target);
+
+ if (symtab && symtab->findNearestSymbol(target, symbol, symbol_addr)) {
+ ccprintf(response, " <%s", symbol);
+ if (symbol_addr != target)
+ ccprintf(response, "+%d>", target - symbol_addr);
+ else
+ ccprintf(response, ">");
+ }
+
+ return response.str();
+}
+
+}
--- /dev/null
+/*
+ * Copyright (c) 2006-2007 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
+ * Steve Reinhardt
+ */
+
+#ifndef __ARCH_SPARC_INSTS_BRANCH_HH__
+#define __ARCH_SPARC_INSTS_BRANCH_HH__
+
+#include "arch/sparc/insts/static_inst.hh"
+
+////////////////////////////////////////////////////////////////////
+//
+// Branch instructions
+//
+
+namespace SparcISA
+{
+
+/**
+ * Base class for branch operations.
+ */
+class Branch : public SparcStaticInst
+{
+ protected:
+ using SparcStaticInst::SparcStaticInst;
+
+ std::string generateDisassembly(
+ Addr pc, const SymbolTable *symtab) const override;
+};
+
+/**
+ * Base class for branch operations with an immediate displacement.
+ */
+class BranchDisp : public Branch
+{
+ protected:
+ BranchDisp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
+ int32_t _disp) :
+ Branch(mnem, _machInst, __opClass), disp(_disp)
+ {}
+
+ std::string generateDisassembly(
+ Addr pc, const SymbolTable *symtab) const override;
+
+ int32_t disp;
+};
+
+/**
+ * Base class for branches with n bit displacements.
+ */
+template<int bits>
+class BranchNBits : public BranchDisp
+{
+ protected:
+ // Constructor
+ BranchNBits(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
+ BranchDisp(mnem, _machInst, __opClass,
+ sext<bits + 2>((_machInst & mask(bits)) << 2))
+ {}
+};
+
+/**
+ * Base class for 16bit split displacements.
+ */
+class BranchSplit : public BranchDisp
+{
+ protected:
+ // Constructor
+ BranchSplit(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
+ BranchDisp(mnem, _machInst, __opClass,
+ sext<18>((bits(_machInst, 21, 20) << 16) |
+ (bits(_machInst, 13, 0) << 2)))
+ {}
+};
+
+/**
+ * Base class for branches that use an immediate and a register to
+ * compute their displacements.
+ */
+class BranchImm13 : public Branch
+{
+ protected:
+ // Constructor
+ BranchImm13(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
+ Branch(mnem, _machInst, __opClass),
+ imm(sext<13>(bits(_machInst, 12, 0)))
+ {}
+
+ std::string generateDisassembly(
+ Addr pc, const SymbolTable *symtab) const override;
+
+ int32_t imm;
+};
+
+}
+
+#endif // __ARCH_SPARC_INSTS_BRANCH_HH__
--- /dev/null
+/*
+ * Copyright (c) 2006-2007 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
+ * Steve Reinhardt
+ */
+
+#include "arch/sparc/insts/trap.hh"
+
+namespace SparcISA
+{
+
+std::string
+Trap::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+{
+ std::stringstream response;
+
+ printMnemonic(response, mnemonic);
+ ccprintf(response, " ");
+ printReg(response, _srcRegIdx[0]);
+ ccprintf(response, ", 0x%x", trapNum);
+ ccprintf(response, ", or ");
+ printReg(response, _srcRegIdx[1]);
+ return response.str();
+}
+
+}
--- /dev/null
+/*
+ * Copyright (c) 2006-2007 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
+ * Steve Reinhardt
+ */
+
+////////////////////////////////////////////////////////////////////
+//
+// Trap instructions
+//
+
+#ifndef __ARCH_SPARC_INSTS_TRAP_HH__
+#define __ARCH_SPARC_INSTS_TRAP_HH__
+
+#include "arch/sparc/insts/static_inst.hh"
+
+namespace SparcISA
+{
+
+/**
+ * Base class for trap instructions,
+ * or instructions that always fault.
+ */
+class Trap : public SparcStaticInst
+{
+ protected:
+
+ // Constructor
+ Trap(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
+ SparcStaticInst(mnem, _machInst, __opClass),
+ trapNum(bits(_machInst, 7, 0))
+ {}
+
+ std::string generateDisassembly(
+ Addr pc, const SymbolTable *symtab) const override;
+
+ int trapNum;
+};
+
+class FpUnimpl : public SparcStaticInst
+{
+ protected:
+ using SparcStaticInst::SparcStaticInst;
+
+ std::string
+ generateDisassembly(Addr pc, const SymbolTable *symtab) const override
+ {
+ return mnemonic;
+ }
+};
+
+}
+
+#endif // __ARCH_SPARC_INSTS_TRAP_HH__
// Branch instructions
//
-output header {{
- /**
- * Base class for branch operations.
- */
- class Branch : public SparcStaticInst
- {
- protected:
- // Constructor
- Branch(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
- SparcStaticInst(mnem, _machInst, __opClass)
- {
- }
-
- std::string generateDisassembly(Addr pc,
- const SymbolTable *symtab) const;
- };
-
- /**
- * Base class for branch operations with an immediate displacement.
- */
- class BranchDisp : public Branch
- {
- protected:
- // Constructor
- BranchDisp(const char *mnem, ExtMachInst _machInst,
- OpClass __opClass) :
- Branch(mnem, _machInst, __opClass)
- {
- }
-
- std::string generateDisassembly(Addr pc,
- const SymbolTable *symtab) const;
-
- int32_t disp;
- };
-
- /**
- * Base class for branches with n bit displacements.
- */
- template<int bits>
- class BranchNBits : public BranchDisp
- {
- protected:
- // Constructor
- BranchNBits(const char *mnem, ExtMachInst _machInst,
- OpClass __opClass) :
- BranchDisp(mnem, _machInst, __opClass)
- {
- disp = sext<bits + 2>((_machInst & mask(bits)) << 2);
- }
- };
-
- /**
- * Base class for 16bit split displacements.
- */
- class BranchSplit : public BranchDisp
- {
- protected:
- // Constructor
- BranchSplit(const char *mnem, ExtMachInst _machInst,
- OpClass __opClass) :
- BranchDisp(mnem, _machInst, __opClass)
- {
- disp = sext<18>((D16HI << 16) | (D16LO << 2));
- }
- };
-
- /**
- * Base class for branches that use an immediate and a register to
- * compute their displacements.
- */
- class BranchImm13 : public Branch
- {
- protected:
- // Constructor
- BranchImm13(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
- Branch(mnem, _machInst, __opClass), imm(sext<13>(SIMM13))
- {
- }
-
- std::string generateDisassembly(Addr pc,
- const SymbolTable *symtab) const;
-
- int32_t imm;
- };
-}};
-
-output decoder {{
-
- template class BranchNBits<19>;
-
- template class BranchNBits<22>;
-
- template class BranchNBits<30>;
-
- std::string
- Branch::generateDisassembly(Addr pc, const SymbolTable *symtab) const
- {
- std::stringstream response;
-
- printMnemonic(response, mnemonic);
- printRegArray(response, _srcRegIdx, _numSrcRegs);
- if (_numDestRegs && _numSrcRegs)
- response << ", ";
- printDestReg(response, 0);
-
- return response.str();
- }
-
- std::string
- BranchImm13::generateDisassembly(Addr pc,
- const SymbolTable *symtab) const
- {
- std::stringstream response;
-
- printMnemonic(response, mnemonic);
- printRegArray(response, _srcRegIdx, _numSrcRegs);
- if (_numSrcRegs > 0)
- response << ", ";
- ccprintf(response, "0x%x", imm);
- if (_numDestRegs > 0)
- response << ", ";
- printDestReg(response, 0);
-
- return response.str();
- }
-
- std::string
- BranchDisp::generateDisassembly(Addr pc,
- const SymbolTable *symtab) const
- {
- std::stringstream response;
- std::string symbol;
- Addr symbolAddr;
-
- Addr target = disp + pc;
-
- printMnemonic(response, mnemonic);
- ccprintf(response, "0x%x", target);
-
- if (symtab &&
- symtab->findNearestSymbol(target, symbol, symbolAddr)) {
- ccprintf(response, " <%s", symbol);
- if (symbolAddr != target)
- ccprintf(response, "+%d>", target - symbolAddr);
- else
- ccprintf(response, ">");
- }
-
- return response.str();
- }
-}};
-
def template JumpExecute {{
Fault %(class_name)s::execute(ExecContext *xc,
Trace::InstRecord *traceData) const
// Trap instructions
//
-output header {{
- /**
- * Base class for trap instructions,
- * or instructions that always fault.
- */
- class Trap : public SparcStaticInst
- {
- protected:
-
- // Constructor
- Trap(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
- SparcStaticInst(mnem, _machInst, __opClass), trapNum(SW_TRAP)
- {
- }
-
- std::string generateDisassembly(Addr pc,
- const SymbolTable *symtab) const;
-
- int trapNum;
- };
-}};
-
-output decoder {{
- std::string
- Trap::generateDisassembly(Addr pc, const SymbolTable *symtab) const
- {
- std::stringstream response;
-
- printMnemonic(response, mnemonic);
- ccprintf(response, " ");
- printReg(response, _srcRegIdx[0]);
- ccprintf(response, ", 0x%x", trapNum);
- ccprintf(response, ", or ");
- printReg(response, _srcRegIdx[1]);
- return response.str();
- }
-}};
-
def template TrapExecute {{
Fault
%(class_name)s::execute(ExecContext *xc,
exec_output = TrapExecute.subst(iop)
}};
-output header {{
- class FpUnimpl : public SparcStaticInst
- {
- protected:
- FpUnimpl(const char *mnem,
- ExtMachInst _machInst, OpClass __opClass)
- : SparcStaticInst(mnem, _machInst, __opClass)
- {
- }
-
- std::string
- generateDisassembly(Addr pc, const SymbolTable *symtab) const
- {
- return mnemonic;
- }
- };
-}};
-
def format FpUnimpl(*flags) {{
fpunimpl_code = '''
Fsr = insertBits(Fsr, 16, 14, 3);
#include <sstream>
#include "arch/sparc/faults.hh"
+#include "arch/sparc/insts/branch.hh"
#include "arch/sparc/insts/priv.hh"
#include "arch/sparc/insts/static_inst.hh"
+#include "arch/sparc/insts/trap.hh"
#include "arch/sparc/isa_traits.hh"
#include "arch/sparc/registers.hh"
#include "base/condcodes.hh"
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