1 // Copyright (c) 2007 The Hewlett-Packard Development Company
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42 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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54 // Authors: Gabe Black
56 ////////////////////////////////////////////////////////////////////
58 // The actual decoder specification
61 decode LEGACY_LOCK default Unknown::unknown()
64 0x0: decode OPCODE_NUM default Unknown::unknown()
66 0x0: M5InternalError::error(
67 {{"Saw an ExtMachInst with zero opcode bytes!"}});
69 ##include "one_byte_opcodes.isa"
71 ##include "two_byte_opcodes.isa"
73 0x3: decode OPCODE_PREFIXA {
74 0xF0: decode OPCODE_PREFIXB {
75 //We don't handle these properly in the predecoder yet, so
76 //there's no reason to implement them for now.
77 0x38: decode OPCODE_OP {
78 default: FailUnimpl::sseThreeEight();
80 0x3A: decode OPCODE_OP {
81 default: FailUnimpl::sseThreeA();
83 0xF0: decode OPCODE_OP {
84 default: FailUnimpl::threednow();
86 default: M5InternalError::error(
87 {{"Unexpected second opcode byte in three byte opcode!"}});
89 default: M5InternalError::error(
90 {{"Unexpected first opcode byte in three byte opcode!"}});
94 ##include "locked_opcodes.isa"