diff options
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/sparc/insts/unimp.hh | 122 | ||||
| -rw-r--r-- | src/arch/sparc/isa/formats/unimp.isa | 98 | ||||
| -rw-r--r-- | src/arch/sparc/isa/includes.isa | 1 |
3 files changed, 123 insertions, 98 deletions
diff --git a/src/arch/sparc/insts/unimp.hh b/src/arch/sparc/insts/unimp.hh new file mode 100644 index 000000000..c0d97858f --- /dev/null +++ b/src/arch/sparc/insts/unimp.hh @@ -0,0 +1,122 @@ +/* + * Copyright (c) 2003-2005 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: Steve Reinhardt + */ + +#ifndef __ARCH_SPARC_INSTS_UNIMP_HH__ +#define __ARCH_SPARC_INSTS_UNIMP_HH__ + +#include "arch/sparc/insts/static_inst.hh" +#include "base/cprintf.hh" + +namespace SparcISA +{ + +//////////////////////////////////////////////////////////////////// +// +// Unimplemented instructions +// + +/** + * Static instruction class for unimplemented instructions that + * cause simulator termination. Note that these are recognized + * (legal) instructions that the simulator does not support; the + * 'Unknown' class is used for unrecognized/illegal instructions. + * This is a leaf class. + */ +class FailUnimplemented : public SparcStaticInst +{ + public: + /// Constructor + FailUnimplemented(const char *_mnemonic, ExtMachInst _machInst) : + SparcStaticInst(_mnemonic, _machInst, No_OpClass) + { + // don't call execute() (which panics) if we're on a + // speculative path + flags[IsNonSpeculative] = true; + } + + Fault + execute(ExecContext *xc, Trace::InstRecord *traceData) const override + { + panic("attempt to execute unimplemented instruction '%s' " + "(inst 0x%08x)", mnemonic, machInst); + } + + std::string + generateDisassembly(Addr pc, const SymbolTable *symtab) const override + { + return csprintf("%-10s (unimplemented)", mnemonic); + } +}; + +/** + * Base class for unimplemented instructions that cause a warning + * to be printed (but do not terminate simulation). This + * implementation is a little screwy in that it will print a + * warning for each instance of a particular unimplemented machine + * instruction, not just for each unimplemented opcode. Should + * probably make the 'warned' flag a static member of the derived + * class. + */ +class WarnUnimplemented : public SparcStaticInst +{ + private: + /// Have we warned on this instruction yet? + mutable bool warned; + + public: + /// Constructor + WarnUnimplemented(const char *_mnemonic, ExtMachInst _machInst) : + SparcStaticInst(_mnemonic, _machInst, No_OpClass), warned(false) + { + // don't call execute() (which panics) if we're on a + // speculative path + flags[IsNonSpeculative] = true; + } + + Fault + execute(ExecContext *xc, Trace::InstRecord *traceData) const override + { + if (!warned) { + warn("instruction '%s' unimplemented\n", mnemonic); + warned = true; + } + return NoFault; + } + + std::string + generateDisassembly(Addr pc, const SymbolTable *symtab) const override + { + return csprintf("%-10s (unimplemented)", mnemonic); + } +}; + +} + +#endif // __ARCH_SPARC_INSTS_UNIMP_HH__ diff --git a/src/arch/sparc/isa/formats/unimp.isa b/src/arch/sparc/isa/formats/unimp.isa index aa03c926e..b23d82148 100644 --- a/src/arch/sparc/isa/formats/unimp.isa +++ b/src/arch/sparc/isa/formats/unimp.isa @@ -33,104 +33,6 @@ // Unimplemented instructions // -output header {{ - /** - * Static instruction class for unimplemented instructions that - * cause simulator termination. Note that these are recognized - * (legal) instructions that the simulator does not support; the - * 'Unknown' class is used for unrecognized/illegal instructions. - * This is a leaf class. - */ - class FailUnimplemented : public SparcStaticInst - { - public: - /// Constructor - FailUnimplemented(const char *_mnemonic, ExtMachInst _machInst) - : SparcStaticInst(_mnemonic, _machInst, No_OpClass) - { - // don't call execute() (which panics) if we're on a - // speculative path - flags[IsNonSpeculative] = true; - } - - Fault execute(ExecContext *, Trace::InstRecord *) const; - - std::string - generateDisassembly(Addr pc, const SymbolTable *symtab) const; - }; - - /** - * Base class for unimplemented instructions that cause a warning - * to be printed (but do not terminate simulation). This - * implementation is a little screwy in that it will print a - * warning for each instance of a particular unimplemented machine - * instruction, not just for each unimplemented opcode. Should - * probably make the 'warned' flag a static member of the derived - * class. - */ - class WarnUnimplemented : public SparcStaticInst - { - private: - /// Have we warned on this instruction yet? - mutable bool warned; - - public: - /// Constructor - WarnUnimplemented(const char *_mnemonic, ExtMachInst _machInst) - : SparcStaticInst(_mnemonic, _machInst, No_OpClass), warned(false) - { - // don't call execute() (which panics) if we're on a - // speculative path - flags[IsNonSpeculative] = true; - } - - Fault execute(ExecContext *, Trace::InstRecord *) const; - - std::string - generateDisassembly(Addr pc, const SymbolTable *symtab) const; - }; -}}; - -output decoder {{ - std::string - FailUnimplemented::generateDisassembly(Addr pc, - const SymbolTable *symtab) const - { - return csprintf("%-10s (unimplemented)", mnemonic); - } - - std::string - WarnUnimplemented::generateDisassembly(Addr pc, - const SymbolTable *symtab) const - { - return csprintf("%-10s (unimplemented)", mnemonic); - } -}}; - -output exec {{ - Fault - FailUnimplemented::execute(ExecContext *xc, - Trace::InstRecord *traceData) const - { - panic("attempt to execute unimplemented instruction '%s' " - "(inst 0x%08x)", mnemonic, machInst); - return NoFault; - } - - Fault - WarnUnimplemented::execute(ExecContext *xc, - Trace::InstRecord *traceData) const - { - if (!warned) { - warn("instruction '%s' unimplemented\n", mnemonic); - warned = true; - } - - return NoFault; - } -}}; - - def format FailUnimpl() {{ iop = InstObjParams(name, 'FailUnimplemented') decode_block = BasicDecodeWithMnemonic.subst(iop) diff --git a/src/arch/sparc/isa/includes.isa b/src/arch/sparc/isa/includes.isa index 9077f7cb0..4a94d2f6d 100644 --- a/src/arch/sparc/isa/includes.isa +++ b/src/arch/sparc/isa/includes.isa @@ -44,6 +44,7 @@ output header {{ #include "arch/sparc/insts/priv.hh" #include "arch/sparc/insts/static_inst.hh" #include "arch/sparc/insts/trap.hh" +#include "arch/sparc/insts/unimp.hh" #include "arch/sparc/insts/unknown.hh" #include "arch/sparc/isa_traits.hh" #include "arch/sparc/registers.hh" |