| Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1 | // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef V8_UNITTESTS_INTERPRETER_BYTECODE_UTILS_H_ |
| 6 | #define V8_UNITTESTS_INTERPRETER_BYTECODE_UTILS_H_ |
| 7 | |
| 8 | #include "src/frames.h" |
| 9 | |
| 10 | #if V8_TARGET_LITTLE_ENDIAN |
| 11 | |
| 12 | #define EXTRACT(x, n) static_cast<uint8_t>((x) >> (8 * n)) |
| 13 | #define U16(i) EXTRACT(i, 0), EXTRACT(i, 1) |
| 14 | #define U32(i) EXTRACT(i, 0), EXTRACT(i, 1), EXTRACT(i, 2), EXTRACT(i, 3) |
| 15 | |
| 16 | #elif V8_TARGET_BIG_ENDIAN |
| 17 | |
| 18 | #define EXTRACT(x, n) static_cast<uint8_t>((x) >> (8 * n)) |
| 19 | |
| 20 | #define U16(i) EXTRACT(i, 1), EXTRACT(i, 0) |
| 21 | #define U32(i) EXTRACT(i, 3), EXTRACT(i, 2), EXTRACT(i, 1), EXTRACT(i, 0) |
| 22 | |
| 23 | #else |
| 24 | |
| 25 | #error "Unknown Architecture" |
| 26 | |
| 27 | #endif |
| 28 | |
| 29 | #define U8(i) static_cast<uint8_t>(i) |
| 30 | #define B(Name) static_cast<uint8_t>(Bytecode::k##Name) |
| 31 | #define REG_OPERAND(i) \ |
| 32 | (InterpreterFrameConstants::kRegisterFileFromFp / kPointerSize - (i)) |
| 33 | #define R8(i) static_cast<uint8_t>(REG_OPERAND(i)) |
| 34 | #define R16(i) U16(REG_OPERAND(i)) |
| 35 | #define R32(i) U32(REG_OPERAND(i)) |
| 36 | |
| 37 | #endif // V8_UNITTESTS_INTERPRETER_BYTECODE_UTILS_H_ |