| /* |
| * Copyright (C) 2017-2019 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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. |
| */ |
| |
| #pragma once |
| |
| #if ENABLE(B3_JIT) |
| |
| #include "AirArg.h" |
| |
| namespace JSC { namespace B3 { namespace Air { |
| |
| static constexpr uint8_t formRoleShift = 0; |
| static constexpr uint8_t formRoleMask = 15; |
| static constexpr uint8_t formBankShift = 4; |
| static constexpr uint8_t formBankMask = 1; |
| static constexpr uint8_t formWidthShift = 5; |
| static constexpr uint8_t formWidthMask = 3; |
| static constexpr uint8_t formInvalidShift = 7; |
| |
| #define ENCODE_INST_FORM(role, bank, width) (static_cast<uint8_t>(role) << formRoleShift | static_cast<uint8_t>(bank) << formBankShift | static_cast<uint8_t>(width) << formWidthShift) |
| |
| #define INVALID_INST_FORM (1 << formInvalidShift) |
| |
| JS_EXPORT_PRIVATE extern const uint8_t g_formTable[]; |
| |
| inline Arg::Role decodeFormRole(uint8_t value) |
| { |
| return static_cast<Arg::Role>((value >> formRoleShift) & formRoleMask); |
| } |
| |
| inline Bank decodeFormBank(uint8_t value) |
| { |
| return static_cast<Bank>((value >> formBankShift) & formBankMask); |
| } |
| |
| inline Width decodeFormWidth(uint8_t value) |
| { |
| return static_cast<Width>((value >> formWidthShift) & formWidthMask); |
| } |
| |
| } } } // namespace JSC::B3::Air |
| |
| #endif // ENABLE(B3_JIT) |
| |
