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37 lines
2.0 KiB
C
37 lines
2.0 KiB
C
/*
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* Copyright (C) 2012, 2016 Apple Inc. All rights reserved.
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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
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* are met:
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* 1. 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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* 2. 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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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* 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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#pragma once
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// Register numbers used in bytecode operations have different meaning according to their ranges:
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// 0x80000000-0xFFFFFFFF Negative indices from the CallFrame pointer are entries in the call frame.
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// 0x00000000-0x3FFFFFFF Forwards indices from the CallFrame pointer are local vars and temporaries with the function's callframe.
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// 0x40000000-0x7FFFFFFF Positive indices from 0x40000000 specify entries in the constant pool on the CodeBlock.
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static constexpr int FirstConstantRegisterIndex = 0x40000000;
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static constexpr int FirstConstantRegisterIndex8 = 16;
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static constexpr int FirstConstantRegisterIndex16 = 64;
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static constexpr int FirstConstantRegisterIndex32 = FirstConstantRegisterIndex;
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