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Diffstat (limited to 'src/arch/x86/isa/formats/syscall.isa')
| -rw-r--r-- | src/arch/x86/isa/formats/syscall.isa | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/src/arch/x86/isa/formats/syscall.isa b/src/arch/x86/isa/formats/syscall.isa new file mode 100644 index 000000000..8b860dba4 --- /dev/null +++ b/src/arch/x86/isa/formats/syscall.isa @@ -0,0 +1,112 @@ +// -*- mode:c++ -*- + +// 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 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 +// 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 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 + +//////////////////////////////////////////////////////////////////// +// +// "Format" which describes an instruction whose only purpose is to +// call a syscall in SE mode. +// + +output header {{ + class SyscallInst : public X86ISA::X86StaticInst + { + public: + /// Constructor + SyscallInst(const char *_mnemonic, ExtMachInst _machInst, + OpClass __opClass) : + X86ISA::X86StaticInst(_mnemonic, _machInst, __opClass) + { + } + + std::string generateDisassembly(Addr pc, + const SymbolTable *symtab) const; + }; +}}; + +output decoder {{ + std::string SyscallInst::generateDisassembly(Addr PC, + const SymbolTable *symtab) const + { + std::stringstream response; + + printMnemonic(response, mnemonic); + ccprintf(response, " "); + printReg(response, _srcRegIdx[0], machInst.opSize); + return response.str(); + } +}}; + +def template SyscallExecute {{ + 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; + return fault; + } +}}; + +def format SyscallInst(code, *opt_flags) {{ + iop = InstObjParams(name, Name, 'SyscallInst', code, opt_flags) + header_output = BasicDeclare.subst(iop) + decoder_output = BasicConstructor.subst(iop) + decode_block = BasicDecode.subst(iop) + exec_output = SyscallExecute.subst(iop) +}}; + |