/*
* Copyright 2017 - 2018 Volker Berlin (i-net software)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package de.inetsoftware.jwebassembly.binary;
/**
* Instruction opcodes of the binary WebAssembly format.
*
* Details can be found at: https://github.com/WebAssembly/design/blob/master/BinaryEncoding.md
*
* @author Volker Berlin
*
*/
interface InstructionOpcodes {
static final int UNREACHABLE = 0x00;
static final int NOP = 0x01;
// === Control flow operators ====
static final int BLOCK = 0x02;
static final int LOOP = 0x03;
/**
* If the value on the stack is true then the if block is executed. <br>
* sequence: IF {return type} <br>
* return type: can be void (0x40) <br>
* stack: remove one i32 value and compare it with 0 <br>
*/
static final int IF = 0x04;
static final int ELSE = 0x05;
static final int END = 0x0B;
/**
* Break a block/loop <br>
* sequence: BR {call deep} <br>
* call deep: How many blocks are break. 0 means the current block<br>
* stack: no change <br>
*/
static final int BR = 0x0C;
static final int BR_IF = 0x0D;
/**
* - br_table
* - target_count - count of entries in the table
* - target_table - levels of block breaks
* - default_target - levels of block breaks for default value
*/
static final int BR_TABLE = 0x0E;
static final int RETURN = 0x0F;
static final int CALL = 0x10;
static final int CALL_INDIRECT = 0x11;
static final int DROP = 0x1A;
/**
* select one of two values based on condition
*/
static final int SELECT = 0x1B;
// === Variable access ===========
static final int GET_LOCAL = 0x20;
static final int SET_LOCAL = 0x21;
static final int TEE_LOCAL = 0x22;
static final int GET_GLOBAL = 0x23;
static final int SET_GLOBAL = 0x24;
static final int I32_CONST = 0x41;
static final int I64_CONST = 0x42;
static final int F32_CONST = 0x43;
static final int F64_CONST = 0x44;
// === numerical operations ======
static final int I32_EQZ = 0x45;
static final int I32_EQ = 0x46;
static final int I32_NE = 0x47;
static final int I32_LT_S = 0x48;
static final int I32_LT_U = 0x49;
static final int I32_GT_S = 0x4A;
static final int I32_GT_U = 0x4B;
static final int I32_LE_S = 0x4C;
static final int I32_LE_U = 0x4D;
static final int I32_GE_S = 0x4E;
static final int I32_GE_U = 0x4F;
static final int I64_EQZ = 0x50;
static final int I64_EQ = 0x51;
static final int I64_NE = 0x52;
static final int I64_LT_S = 0x53;
static final int I64_LT_U = 0x54;
static final int I64_GT_S = 0x55;
static final int I64_GT_U = 0x56;
static final int I64_LE_S = 0x57;
static final int I64_LE_U = 0x58;
static final int I64_GE_S = 0x59;
static final int I64_GE_U = 0x5A;
static final int F32_EQ = 0x5B;
static final int F32_NE = 0x5C;
static final int F32_LT = 0x5D;
static final int F32_GT = 0x5E;
static final int F32_LE = 0x5F;
static final int F32_GE = 0x60;
static final int F64_EQ = 0x61;
static final int F64_NE = 0x62;
static final int F64_LT = 0x63;
static final int F64_GT = 0x64;
static final int F64_LE = 0x65;
static final int F64_GE = 0x66;
static final int I32_CLZ = 0x67;
static final int I32_CTZ = 0x68;
static final int I32_POPCNT= 0x69;
static final int I32_ADD = 0x6A;
static final int I32_SUB = 0x6B;
static final int I32_MUL = 0x6C;
static final int I32_DIV_S = 0x6D;
static final int I32_DIV_U = 0x6E;
static final int I32_REM_S = 0x6F;
static final int I32_REM_U = 0x70;
static final int I32_AND = 0x71;
static final int I32_OR = 0x72;
static final int I32_XOR = 0x73;
static final int I32_SHL = 0x74;
static final int I32_SHR_S = 0x75;
static final int I32_SHR_U = 0x76;
static final int I32_ROTL = 0x77;
static final int I32_ROTR = 0x78;
static final int I64_CLZ = 0x79;
static final int I64_CTZ = 0x7A;
static final int I64_POPCNT= 0x7B;
static final int I64_ADD = 0x7C;
static final int I64_SUB = 0x7D;
static final int I64_MUL = 0x7E;
static final int I64_DIV_S = 0x7F;
static final int I64_REM_S = 0x81;
static final int I64_AND = 0x83;
static final int I64_OR = 0x84;
static final int I64_XOR = 0x85;
static final int I64_SHL = 0x86;
static final int I64_SHR_S = 0x87;
static final int I64_SHR_U = 0x88;
static final int I64_ROTL = 0x89;
static final int I64_ROTR = 0x8A;
static final int F32_NEG = 0x8C;
static final int F32_CEIL = 0x8D;
static final int F32_FLOOR = 0x8E;
static final int F32_TRUNC = 0x8F;
static final int F32_NEAREST= 0x90;
static final int F32_SQRT = 0x91;
static final int F32_ADD = 0x92;
static final int F32_SUB = 0x93;
static final int F32_MUL = 0x94;
static final int F32_DIV = 0x95;
static final int F32_MIN = 0x96;
static final int F32_MAX = 0x97;
static final int F32_COPYSIGN= 0x98;
static final int F64_ABS = 0x99;
static final int F64_NEG = 0x9A;
static final int F64_CEIL = 0x9B;
static final int F64_FLOOR = 0x9C;
static final int F64_TRUNC = 0x9D;
static final int F64_NEAREST= 0x9E;
static final int F64_SQRT = 0x9F;
static final int F64_ADD = 0xA0;
static final int F64_SUB = 0xA1;
static final int F64_MUL = 0xA2;
static final int F64_DIV = 0xA3;
static final int F64_MIN = 0xA4;
static final int F64_MAX = 0xA5;
static final int F64_COPYSIGN= 0xA6;
// === data type conversions =====
// TargetType_...._SourceType
static final int I32_WRAP_I64 = 0xA7;
static final int I32_TRUNC_S_F32 = 0xA8;
static final int I32_TRUNC_U_F32 = 0xA9;
static final int I32_TRUNC_S_F64 = 0xAA;
static final int I32_TRUNC_U_F64 = 0xAB;
static final int I64_EXTEND_S_I32 = 0xAC;
static final int I64_EXTEND_U_I32 = 0xAD;
static final int I64_TRUNC_S_F32 = 0xAE;
static final int I64_TRUNC_U_F32 = 0xAF;
static final int I64_TRUNC_S_F64 = 0xB0;
static final int I64_TRUNC_U_F64 = 0xB1;
static final int F32_CONVERT_S_I32 = 0xB2;
static final int F32_CONVERT_U_I32 = 0xB3;
static final int F32_CONVERT_S_I64 = 0xB4;
static final int F32_CONVERT_U_I64 = 0xB5;
static final int F32_DEMOTE_F64 = 0xB6;
static final int F64_CONVERT_S_I32 = 0xB7;
static final int F64_CONVERT_U_I32 = 0xB8;
static final int F64_CONVERT_S_I64 = 0xB9;
static final int F64_CONVERT_U_I64 = 0xBA;
static final int F64_PROMOTE_F32 = 0xBB;
// === Sign-extension operators ====== https://github.com/WebAssembly/design/issues/1178
static final int I32_EXTEND8_S = 0xC0;
static final int I32_EXTEND16_S = 0xC1;
static final int I64_EXTEND8_S = 0xC2;
static final int I64_EXTEND16_S = 0xC3;
static final int I64_EXTEND32_S = 0xC4;
// === ref values ====== https://github.com/WebAssembly/design/issues/1203
static final int REF_NULL = 0xD0;
static final int REF_ISNULL = 0xD1;
}