Coverage Report

Created: 2025-08-26 06:11

/src/zydis/src/DecoderData.c
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Source (jump to first uncovered line)
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/***************************************************************************************************
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  Zyan Disassembler Library (Zydis)
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  Original Author : Florian Bernd
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in all
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 * copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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 * SOFTWARE.
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***************************************************************************************************/
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#include <Zydis/Internal/DecoderData.h>
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/* ============================================================================================== */
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/* Data tables                                                                                    */
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/* ============================================================================================== */
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/* ---------------------------------------------------------------------------------------------- */
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/* Physical instruction encodings                                                                 */
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/* ---------------------------------------------------------------------------------------------- */
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#include <Generated/InstructionEncodings.inc>
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/* ---------------------------------------------------------------------------------------------- */
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/* Decoder tree                                                                                   */
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/* ---------------------------------------------------------------------------------------------- */
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#define ZYDIS_INVALID \
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    { ZYDIS_NODETYPE_INVALID, 0x00000000 }
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#define ZYDIS_FILTER(type, id) \
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    { type, id }
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#define ZYDIS_DEFINITION(encoding_id, id) \
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    { ZYDIS_NODETYPE_DEFINITION_MASK | encoding_id, id }
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#include <Generated/DecoderTables.inc>
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#undef ZYDIS_INVALID
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#undef ZYDIS_FILTER
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#undef ZYDIS_DEFINITION
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/* ---------------------------------------------------------------------------------------------- */
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/* ============================================================================================== */
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/* Functions                                                                                      */
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/* ============================================================================================== */
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/* ---------------------------------------------------------------------------------------------- */
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/* Decoder tree                                                                                   */
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/* ---------------------------------------------------------------------------------------------- */
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const ZydisDecoderTreeNode zydis_decoder_tree_root = { ZYDIS_NODETYPE_FILTER_OPCODE, 0x0000 };
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const ZydisDecoderTreeNode* ZydisDecoderTreeGetChildNode(const ZydisDecoderTreeNode* parent,
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    ZyanU16 index)
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0
{
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    switch (parent->type)
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    {
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    case ZYDIS_NODETYPE_FILTER_XOP:
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0
        ZYAN_ASSERT(index <  13);
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        return &FILTERS_XOP[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_VEX:
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        ZYAN_ASSERT(index <  17);
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        return &FILTERS_VEX[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_EMVEX:
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        ZYAN_ASSERT(index <  49);
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        return &FILTERS_EMVEX[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_REX2:
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        ZYAN_ASSERT(index < 3);
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        return &FILTERS_REX2[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_OPCODE:
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        ZYAN_ASSERT(index < 256);
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        return &FILTERS_OPCODE[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODE:
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        ZYAN_ASSERT(index <   4);
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        return &FILTERS_MODE[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODE_COMPACT:
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        ZYAN_ASSERT(index <   3);
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        return &FILTERS_MODE_COMPACT[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODRM_MOD:
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        ZYAN_ASSERT(index <   4);
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        return &FILTERS_MODRM_MOD[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODRM_MOD_COMPACT:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_MODRM_MOD_COMPACT[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODRM_REG:
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        ZYAN_ASSERT(index <   8);
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        return &FILTERS_MODRM_REG[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODRM_RM:
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        ZYAN_ASSERT(index <   8);
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        return &FILTERS_MODRM_RM[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_PREFIX_GROUP1:
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        ZYAN_ASSERT(index < 2);
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        return &FILTERS_PREFIX_GROUP1[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MANDATORY_PREFIX:
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        ZYAN_ASSERT(index <   5);
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        return &FILTERS_MANDATORY_PREFIX[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_OPERAND_SIZE:
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        ZYAN_ASSERT(index <   3);
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        return &FILTERS_OPERAND_SIZE[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_ADDRESS_SIZE:
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        ZYAN_ASSERT(index <   3);
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        return &FILTERS_ADDRESS_SIZE[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_VECTOR_LENGTH:
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        ZYAN_ASSERT(index <   3);
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        return &FILTERS_VECTOR_LENGTH[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_REX_W:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_REX_W[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_REX_B:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_REX_B[parent->value][index];
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#ifndef ZYDIS_DISABLE_AVX512
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    case ZYDIS_NODETYPE_FILTER_EVEX_B:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_EVEX_B[parent->value][index];
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#endif
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#ifndef ZYDIS_DISABLE_KNC
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    case ZYDIS_NODETYPE_FILTER_MVEX_E:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_MVEX_E[parent->value][index];
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#endif
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    case ZYDIS_NODETYPE_FILTER_MODE_AMD:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_MODE_AMD[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODE_KNC:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_MODE_KNC[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODE_MPX:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_MODE_MPX[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODE_CET:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_MODE_CET[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODE_LZCNT:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_MODE_LZCNT[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODE_TZCNT:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_MODE_TZCNT[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODE_WBNOINVD:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_MODE_WBNOINVD[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODE_CLDEMOTE:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_MODE_CLDEMOTE[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODE_IPREFETCH:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_MODE_IPREFETCH[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_MODE_UD0_COMPAT:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_MODE_UD0_COMPAT[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_EVEX_ND:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_EVEX_ND[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_EVEX_NF:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_EVEX_NF[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_EVEX_SCC:
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        ZYAN_ASSERT(index <  16);
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        return &FILTERS_EVEX_SCC[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_REX2_PREFIX:
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        ZYAN_ASSERT(index <   2);
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        return &FILTERS_REX2_PREFIX[parent->value][index];
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    case ZYDIS_NODETYPE_FILTER_EVEX_U:
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        ZYAN_ASSERT(index < 2);
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        return &FILTERS_EVEX_U[parent->value][index];
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    default:
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        ZYAN_UNREACHABLE;
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    }
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}
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void ZydisGetInstructionEncodingInfo(const ZydisDecoderTreeNode* node,
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    const ZydisInstructionEncodingInfo** info)
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{
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    ZYAN_ASSERT(node->type & ZYDIS_NODETYPE_DEFINITION_MASK);
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    const ZyanU8 class = (node->type) & 0x7F;
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    ZYAN_ASSERT(class < ZYAN_ARRAY_LENGTH(INSTR_ENCODINGS));
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    *info = &INSTR_ENCODINGS[class];
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}
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/* ---------------------------------------------------------------------------------------------- */
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/* ============================================================================================== */