38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
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// Copyright 2015 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_UNITTESTS_INTERPRETER_BYTECODE_UTILS_H_
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#define V8_UNITTESTS_INTERPRETER_BYTECODE_UTILS_H_
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#include "src/frames.h"
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#if V8_TARGET_LITTLE_ENDIAN
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#define EXTRACT(x, n) static_cast<uint8_t>((x) >> (8 * n))
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#define U16(i) EXTRACT(i, 0), EXTRACT(i, 1)
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#define U32(i) EXTRACT(i, 0), EXTRACT(i, 1), EXTRACT(i, 2), EXTRACT(i, 3)
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#elif V8_TARGET_BIG_ENDIAN
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#define EXTRACT(x, n) static_cast<uint8_t>((x) >> (8 * n))
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#define U16(i) EXTRACT(i, 1), EXTRACT(i, 0)
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#define U32(i) EXTRACT(i, 3), EXTRACT(i, 2), EXTRACT(i, 1), EXTRACT(i, 0)
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#else
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#error "Unknown Architecture"
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#endif
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#define U8(i) static_cast<uint8_t>(i)
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#define B(Name) static_cast<uint8_t>(Bytecode::k##Name)
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#define REG_OPERAND(i) \
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(InterpreterFrameConstants::kRegisterFileFromFp / kPointerSize - (i))
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#define R8(i) static_cast<uint8_t>(REG_OPERAND(i))
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#define R16(i) U16(REG_OPERAND(i))
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#define R32(i) U32(REG_OPERAND(i))
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#endif // V8_UNITTESTS_INTERPRETER_BYTECODE_UTILS_H_
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