Implemented decoder-modes to support ISA-extensions that conflict with existing instructions

- Added decoder-modes
 - `ZYDIS_DECODER_MODE_MINIMAL`
 - `ZYDIS_DECODER_MODE_AMD_BRANCHES`
 - `ZYDIS_DECODER_MODE_MPX`
 - `ZYDIS_DECODER_MODE_CET`
 - `ZYDIS_DECODER_MODE_LZCNT`
 - `ZYDIS_DECODER_MODE_TZCNT`
- Removed `ZydisDecoderInitEx` and the possibility to pass a decoder-granularity (use `ZYDIS_DECODER_MODE_MINIMAL` instead)

examples/ZydisFuzzIn.c

@@ -39,10 +39,11 @@
 #include <stdlib.h>
 #include <Zydis/Zydis.h>
 
-typedef struct ZydisFuzzControlBlock_ {
+typedef struct ZydisFuzzControlBlock_ 
+{
     ZydisMachineMode machineMode;
     ZydisAddressWidth addressWidth;
-    ZydisDecodeGranularity granularity;
+    ZydisBool decoderMode[ZYDIS_DECODER_MODE_MAX_VALUE + 1];
     ZydisFormatterStyle formatterStyle;
     ZydisFormatterFlags formatterFlags;
     ZydisFormatterAddressFormat formatterAddrFormat;
@@ -70,12 +71,21 @@ int main()
     }
 
     ZydisDecoder decoder;
-    if (!ZYDIS_SUCCESS(ZydisDecoderInitEx(&decoder, controlBlock.machineMode, 
+    if (!ZYDIS_SUCCESS(
-        controlBlock.addressWidth, controlBlock.granularity)))
+        ZydisDecoderInit(&decoder, controlBlock.machineMode, controlBlock.addressWidth)))
     {
         fputs("Failed to initialize decoder\n", stderr);
         return EXIT_FAILURE;
     }
+    for (ZydisDecoderMode mode = 1; mode <= ZYDIS_DECODER_MODE_MAX_VALUE; ++mode)
+    {
+        if (!ZYDIS_SUCCESS(
+            ZydisDecoderEnableMode(&decoder, mode, controlBlock.decoderMode[mode] ? 1 : 0)))
+        {
+            fputs("Failed to adjust decoder-mode\n", stderr);
+            return EXIT_FAILURE;
+        }
+    }
 
     ZydisFormatter formatter;
     if (!ZYDIS_SUCCESS(ZydisFormatterInitEx(&formatter, controlBlock.formatterStyle, 

examples/ZydisPerfTest.c

@@ -152,16 +152,21 @@ void adjustProcessAndThreadPriority()
 /* Internal functions                                                                             */
 /* ============================================================================================== */
 
-uint64_t processBuffer(const char* buffer, size_t length, ZydisDecodeGranularity granularity, 
+uint64_t processBuffer(const char* buffer, size_t length, ZydisBool minimalMode, ZydisBool format)
-    ZydisBool format)
 {
     ZydisDecoder decoder;
-    if (!ZYDIS_SUCCESS(ZydisDecoderInitEx(&decoder, 
+    if (!ZYDIS_SUCCESS(
-        ZYDIS_MACHINE_MODE_LONG_64, ZYDIS_ADDRESS_WIDTH_64, granularity)))
+        ZydisDecoderInit(&decoder, ZYDIS_MACHINE_MODE_LONG_64, ZYDIS_ADDRESS_WIDTH_64)))
     {
         fputs("Failed to initialize decoder\n", stderr);
         exit(EXIT_FAILURE);
     }
+    if (!ZYDIS_SUCCESS(
+        ZydisDecoderEnableMode(&decoder, ZYDIS_DECODER_MODE_MINIMAL, minimalMode)))
+    {
+        fputs("Failed to adjust decoder-mode\n", stderr);
+        exit(EXIT_FAILURE);    
+    }
 
     ZydisFormatter formatter;
     if (format)
@@ -202,21 +207,20 @@ uint64_t processBuffer(const char* buffer, size_t length, ZydisDecodeGranularity
     return count;
 }
 
-void testPerformance(const char* buffer, size_t length, ZydisDecodeGranularity granularity, 
+void testPerformance(const char* buffer, size_t length, ZydisBool minimalMode, ZydisBool format)
-    ZydisBool format)
 {
     // Cache warmup
-    processBuffer(buffer, length, granularity, format);
+    processBuffer(buffer, length, minimalMode, format);
 
     // Testing
     uint64_t count = 0;
     StartCounter();
     for (uint8_t j = 0; j < 100; ++j)
     {
-        count += processBuffer(buffer, length, granularity, format);
+        count += processBuffer(buffer, length, minimalMode, format);
     }
-    printf("Granularity %d, Formatting %d, Instructions: %6.2fM, Time: %8.2f msec\n", 
+    printf("Minimal-Mode %d, Formatting %d, Instructions: %6.2fM, Time: %8.2f msec\n", 
-        granularity, format, (double)count / 1000000, GetCounter());  
+        minimalMode, format, (double)count / 1000000, GetCounter());  
 }
 
 void generateTestData(FILE* file, uint8_t encoding)
@@ -401,9 +405,9 @@ int main(int argc, char** argv)
             }
 
             printf("Testing %s ...\n", tests[i].encoding);
-            testPerformance(buffer, length, ZYDIS_DECODE_GRANULARITY_MINIMAL, ZYDIS_FALSE);
+            testPerformance(buffer, length, ZYDIS_TRUE , ZYDIS_FALSE);
-            testPerformance(buffer, length, ZYDIS_DECODE_GRANULARITY_FULL   , ZYDIS_FALSE);
+            testPerformance(buffer, length, ZYDIS_FALSE, ZYDIS_FALSE);
-            testPerformance(buffer, length, ZYDIS_DECODE_GRANULARITY_FULL   , ZYDIS_TRUE );
+            testPerformance(buffer, length, ZYDIS_FALSE, ZYDIS_TRUE );
             puts("");
 
 NextFile1:            

include/Zydis/Decoder.h

@@ -45,22 +45,23 @@ extern "C" {
 /* Enums and types                                                                                */
 /* ============================================================================================== */
 
-/**
+/* ---------------------------------------------------------------------------------------------- */
- * @brief   Defines the @c ZydisDecodeGranularity datatype.
+/* Decoder mode                                                                                   */
- */
+/* ---------------------------------------------------------------------------------------------- */
-typedef uint8_t ZydisDecodeGranularity;
 
 /**
- * @brief   Decoder modes defining how granular the instruction should be decoded.
+ * @brief   Defines the @c ZydisDecoderMode datatype.
  */
-enum ZydisDecodeGranularities
+typedef uint8_t ZydisDecoderMode;
+
+/**
+ * @brief   Values that represent decoder-modes.
+ */
+enum ZydisDecoderModes
 {
+    ZYDIS_DECODER_MODE_INVALID,
     /**
-     * @brief   Defaults to `ZYDIS_DECODE_GRANULARITY_FULL`. 
+     * @brief   Enables minimal instruction decoding without semantic analysis.
-     */
-    ZYDIS_DECODE_GRANULARITY_DEFAULT,
-    /**
-     * @brief   Minimal instruction decoding without semantic analysis.
      * 
      * This mode provides access to the mnemonic, the instruction-length, the effective 
      * operand-size, the effective address-width, some attributes (e.g. `ZYDIS_ATTRIB_IS_RELATIVE`) 
@@ -69,17 +70,58 @@ enum ZydisDecodeGranularities
      * Operands, most attributes and other specific information (like AVX info) are not 
      * accessible in this mode.
      */
-    ZYDIS_DECODE_GRANULARITY_MINIMAL,
+    ZYDIS_DECODER_MODE_MINIMAL,
     /**
-     * @brief   Full physical and semantic instruction-decoding.
+     * @brief   Enables the AMD-branch mode.
+     * 
+     * Intel ignores the operand-size override-prefix (`0x66`) for all branches with 32-bit 
+     * immediates and forces the operand-size of the instruction to 64-bit in 64-bit mode.
+     * In AMD-branch mode `0x66` is not ignored and changes the operand-size and the size of the
+     * immediate to 16-bit.
      */
-    ZYDIS_DECODE_GRANULARITY_FULL,
+    ZYDIS_DECODER_MODE_AMD_BRANCHES,
+    /**
+     * @brief   Enables the MPX mode.
+     * 
+     * The MPX isa-extension reuses (overrides) some of the widenop instruction opcodes. 
+     * 
+     * This mode is enabled by default. 
+     */
+    ZYDIS_DECODER_MODE_MPX,
+    /**
+     * @brief   Enables the CET mode.
+     * 
+     * The CET isa-extension reuses (overrides) some of the widenop instruction opcodes. 
+     * 
+     * This mode is enabled by default.  
+     */
+    ZYDIS_DECODER_MODE_CET,
+    /**
+     * @brief   Enables the LZCNT mode.
+     * 
+     * The LZCNT isa-extension reuses (overrides) some of the widenop instruction opcodes.
+     * 
+     * This mode is enabled by default.   
+     */
+    ZYDIS_DECODER_MODE_LZCNT,
+    /**
+     * @brief   Enables the TZCNT mode.
+     * 
+     * The TZCNT isa-extension reuses (overrides) some of the widenop instruction opcodes.  
+     * 
+     * This mode is enabled by default. 
+     */
+    ZYDIS_DECODER_MODE_TZCNT,
     /**
      * @brief   Maximum value of this enum.
      */
-    ZYDIS_DECODE_GRANULARITY_MAX_VALUE = ZYDIS_DECODE_GRANULARITY_FULL,
+    ZYDIS_DECODER_MODE_MAX_VALUE = ZYDIS_DECODER_MODE_TZCNT
 };
 
+/* ---------------------------------------------------------------------------------------------- */
+/* Decoder struct                                                                                 */
+/* ---------------------------------------------------------------------------------------------- */
+
 /**
  * @brief   Defines the @c ZydisDecoder struct.
  */
@@ -87,7 +129,7 @@ typedef struct ZydisDecoder_
 {
     ZydisMachineMode machineMode;
     ZydisAddressWidth addressWidth;
-    ZydisDecodeGranularity granularity;
+    ZydisBool decoderMode[ZYDIS_DECODER_MODE_MAX_VALUE + 1];
 } ZydisDecoder;
 
 /* ---------------------------------------------------------------------------------------------- */
@@ -109,17 +151,16 @@ ZYDIS_EXPORT ZydisStatus ZydisDecoderInit(ZydisDecoder* decoder, ZydisMachineMod
     ZydisAddressWidth addressWidth);
 
 /**
- * @brief   Initializes the given @c ZydisDecoder instance.
+ * @brief   Enables or disables the specified decoder-mode.
  *
- * @param   decoder         A pointer to the @c ZydisDecoder instance.
+ * @param   decoder A pointer to the @c ZydisDecoder instance.
- * @param   machineMode     The machine mode.
+ * @param   mode    The decoder mode.
- * @param   addressWidth    The address width.
+ * @param   enabled `ZYDIS_TRUE` to enable, or `ZYDIS_FALSE` to disable the specified decoder-mode.
- * @param   granularity     The decode granularity.
  *
  * @return  A zydis status code.
  */
-ZYDIS_EXPORT ZydisStatus ZydisDecoderInitEx(ZydisDecoder* decoder, ZydisMachineMode machineMode, 
+ZYDIS_EXPORT ZydisStatus ZydisDecoderEnableMode(ZydisDecoder* decoder, ZydisDecoderMode mode,
-    ZydisAddressWidth addressWidth, ZydisDecodeGranularity granularity);
+    ZydisBool enabled);
 
 /**
  * @brief   Decodes the instruction in the given input @c buffer.

src/Decoder.c

@@ -2107,7 +2107,8 @@ static void ZydisSetAttributes(ZydisDecoderContext* context, ZydisDecodedInstruc
                     break;
                 }
             }
-            if (instruction->attributes & ZYDIS_ATTRIB_ACCEPTS_BOUND)
+            if (context->decoder->decoderMode[ZYDIS_DECODER_MODE_MPX] && 
+                instruction->attributes & ZYDIS_ATTRIB_ACCEPTS_BOUND)
             {
                 instruction->attributes |= ZYDIS_ATTRIB_HAS_BOUND;
                 break;
@@ -4298,12 +4299,20 @@ static ZydisStatus ZydisDecodeInstruction(ZydisDecoderContext* context,
         case ZYDIS_NODETYPE_FILTER_MVEX_E:
             status = ZydisNodeHandlerMvexE(instruction, &index);
             break;   
-        case ZYDIS_NODETYPE_FILTER_FEATURE_MPX:
+        case ZYDIS_NODETYPE_FILTER_MODE_AMD:
-        case ZYDIS_NODETYPE_FILTER_FEATURE_CET:
+            index = context->decoder->decoderMode[ZYDIS_DECODER_MODE_AMD_BRANCHES] ? 1 : 0;
-        case ZYDIS_NODETYPE_FILTER_FEATURE_LZCNT:
+            break;
-        case ZYDIS_NODETYPE_FILTER_FEATURE_TZCNT:
+        case ZYDIS_NODETYPE_FILTER_MODE_MPX:
-            // TODO: Make configurable by option
+            index = context->decoder->decoderMode[ZYDIS_DECODER_MODE_MPX] ? 1 : 0;
-            index = 1;
+            break;
+        case ZYDIS_NODETYPE_FILTER_MODE_CET:
+            index = context->decoder->decoderMode[ZYDIS_DECODER_MODE_CET] ? 1 : 0;
+            break;
+        case ZYDIS_NODETYPE_FILTER_MODE_LZCNT:
+            index = context->decoder->decoderMode[ZYDIS_DECODER_MODE_LZCNT] ? 1 : 0;
+            break;
+        case ZYDIS_NODETYPE_FILTER_MODE_TZCNT:
+            index = context->decoder->decoderMode[ZYDIS_DECODER_MODE_TZCNT] ? 1 : 0;
             break;
         default:
             if (nodeType & ZYDIS_NODETYPE_DEFINITION_MASK)
@@ -4344,7 +4353,7 @@ static ZydisStatus ZydisDecodeInstruction(ZydisDecoderContext* context,
                 instruction->meta.isaExt = definition->isaExt;
                 instruction->meta.exceptionClass = definition->exceptionClass;
 
-                if (context->decoder->granularity == ZYDIS_DECODE_GRANULARITY_FULL)
+                if (!context->decoder->decoderMode[ZYDIS_DECODER_MODE_MINIMAL])
                 {
                     ZydisSetAttributes(context, instruction, definition);
                     switch (instruction->encoding)
@@ -4387,16 +4396,18 @@ static ZydisStatus ZydisDecodeInstruction(ZydisDecoderContext* context,
 ZydisStatus ZydisDecoderInit(ZydisDecoder* decoder, ZydisMachineMode machineMode, 
     ZydisAddressWidth addressWidth)
 {
-    return ZydisDecoderInitEx(decoder, machineMode, addressWidth, ZYDIS_DECODE_GRANULARITY_DEFAULT);
+    static const ZydisBool decoderModes[ZYDIS_DECODER_MODE_MAX_VALUE + 1] =
-}
+    {
+        ZYDIS_FALSE, // ZYDIS_DECODER_MODE_INVALID
+        ZYDIS_FALSE, // ZYDIS_DECODER_MODE_MINIMAL
+        ZYDIS_FALSE, // ZYDIS_DECODER_MODE_AMD_BRANCHES
+        ZYDIS_TRUE , // ZYDIS_DECODER_MODE_MPX
+        ZYDIS_TRUE , // ZYDIS_DECODER_MODE_CET
+        ZYDIS_TRUE , // ZYDIS_DECODER_MODE_LZCNT
+        ZYDIS_TRUE   // ZYDIS_DECODER_MODE_TZCNT
+    };
 
-ZydisStatus ZydisDecoderInitEx(ZydisDecoder* decoder, ZydisMachineMode machineMode, 
+    if (!decoder || ((machineMode != 16) && (machineMode != 32) && (machineMode != 64)))
-    ZydisAddressWidth addressWidth, ZydisDecodeGranularity granularity)
-{
-    if (!decoder || ((machineMode != 16) && (machineMode != 32) && (machineMode != 64)) ||
-        ((granularity != ZYDIS_DECODE_GRANULARITY_DEFAULT) && 
-         (granularity != ZYDIS_DECODE_GRANULARITY_MINIMAL) &&
-         (granularity != ZYDIS_DECODE_GRANULARITY_FULL)))
     {
         return ZYDIS_STATUS_INVALID_PARAMETER;
     }
@@ -4413,14 +4424,22 @@ ZydisStatus ZydisDecoderInitEx(ZydisDecoder* decoder, ZydisMachineMode machineMo
             return ZYDIS_STATUS_INVALID_PARAMETER;
         }
     }
-    if (granularity == ZYDIS_DECODE_GRANULARITY_DEFAULT)
-    {
-        granularity = ZYDIS_DECODE_GRANULARITY_FULL;
-    }
 
     decoder->machineMode = machineMode;
     decoder->addressWidth = addressWidth;
-    decoder->granularity = granularity;
+    memcpy(&decoder->decoderMode, &decoderModes, sizeof(decoderModes));
+
+    return ZYDIS_STATUS_SUCCESS;
+}
+
+ZydisStatus ZydisDecoderEnableMode(ZydisDecoder* decoder, ZydisDecoderMode mode, ZydisBool enabled)
+{
+    if (!decoder || !mode || (mode > ZYDIS_DECODER_MODE_MAX_VALUE))
+    {
+        return ZYDIS_STATUS_INVALID_PARAMETER;
+    }
+
+    decoder->decoderMode[mode] = enabled;
 
     return ZYDIS_STATUS_SUCCESS;
 }

src/DecoderData.c

@@ -333,18 +333,21 @@ const ZydisDecoderTreeNode* ZydisDecoderTreeGetChildNode(const ZydisDecoderTreeN
     case ZYDIS_NODETYPE_FILTER_MVEX_E:
         ZYDIS_ASSERT(index <   2);
         return &filtersMVEXE[parent->value][index];
-    case ZYDIS_NODETYPE_FILTER_FEATURE_MPX:
+    case ZYDIS_NODETYPE_FILTER_MODE_AMD:
         ZYDIS_ASSERT(index <   2);
-        return &filtersFeatureMPX[parent->value][index];
+        return &filtersModeAMD[parent->value][index];
-    case ZYDIS_NODETYPE_FILTER_FEATURE_CET:
+    case ZYDIS_NODETYPE_FILTER_MODE_MPX:
         ZYDIS_ASSERT(index <   2);
-        return &filtersFeatureCET[parent->value][index];
+        return &filtersModeMPX[parent->value][index];
-    case ZYDIS_NODETYPE_FILTER_FEATURE_LZCNT:
+    case ZYDIS_NODETYPE_FILTER_MODE_CET:
         ZYDIS_ASSERT(index <   2);
-        return &filtersFeatureLZCNT[parent->value][index];
+        return &filtersModeCET[parent->value][index];
-    case ZYDIS_NODETYPE_FILTER_FEATURE_TZCNT:
+    case ZYDIS_NODETYPE_FILTER_MODE_LZCNT:
         ZYDIS_ASSERT(index <   2);
-        return &filtersFeatureTZCNT[parent->value][index];
+        return &filtersModeLZCNT[parent->value][index];
+    case ZYDIS_NODETYPE_FILTER_MODE_TZCNT:
+        ZYDIS_ASSERT(index <   2);
+        return &filtersModeTZCNT[parent->value][index];
     default:
         ZYDIS_UNREACHABLE;
     } 

src/DecoderData.h

@@ -138,21 +138,25 @@ enum ZydisDecoderTreeNodeTypes
      */
     ZYDIS_NODETYPE_FILTER_MVEX_E            = 0x12,
     /**
-     * @brief   Reference to a MPX-feature filter.
+     * @brief   Reference to a AMD-mode filter.
      */
-    ZYDIS_NODETYPE_FILTER_FEATURE_MPX       = 0x13,
+    ZYDIS_NODETYPE_FILTER_MODE_AMD          = 0x13,
     /**
-     * @brief   Reference to a CET-feature filter.
+     * @brief   Reference to a MPX-mode filter.
      */
-    ZYDIS_NODETYPE_FILTER_FEATURE_CET       = 0x14,
+    ZYDIS_NODETYPE_FILTER_MODE_MPX          = 0x14,
     /**
-     * @brief   Reference to a LZCNT-feature filter.
+     * @brief   Reference to a CET-mode filter.
      */
-    ZYDIS_NODETYPE_FILTER_FEATURE_LZCNT     = 0x15,
+    ZYDIS_NODETYPE_FILTER_MODE_CET          = 0x15,
     /**
-     * @brief   Reference to a TZCNT-feature filter.
+     * @brief   Reference to a LZCNT-mode filter.
      */
-    ZYDIS_NODETYPE_FILTER_FEATURE_TZCNT     = 0x16
+    ZYDIS_NODETYPE_FILTER_MODE_LZCNT        = 0x16,
+    /**
+     * @brief   Reference to a TZCNT-mode filter.
+     */
+    ZYDIS_NODETYPE_FILTER_MODE_TZCNT        = 0x17
 };
 
 /* ---------------------------------------------------------------------------------------------- */

src/Generated/OperandDefinitions.inc

@@ -1098,6 +1098,10 @@ const ZydisOperandDefinition operandDefinitions[] =
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READWRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_GPR_SSZ, { .id = 0x4 } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_MEM, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_WRITE, { 2, 4, 8 }, ZYDIS_IELEMENT_TYPE_INT, { .mem = { 0, ZYDIS_IMPLMEM_BASE_ASP } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_REL, ZYDIS_OPERAND_VISIBILITY_EXPLICIT, ZYDIS_OPERAND_ACTION_READ, { 2, 4, 4 }, ZYDIS_IELEMENT_TYPE_INT, { .encoding = ZYDIS_OPERAND_ENCODING_JIMM16_32_32 } }, 
+    { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READWRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_STATIC, { .reg = ZYDIS_REGISTER_RIP } } } }, 
+    { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READWRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_GPR_SSZ, { .id = 0x4 } } } }, 
+    { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_MEM, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_WRITE, { 2, 4, 8 }, ZYDIS_IELEMENT_TYPE_INT, { .mem = { 0, ZYDIS_IMPLMEM_BASE_ASP } } }, 
+    { ZYDIS_SEMANTIC_OPTYPE_REL, ZYDIS_OPERAND_VISIBILITY_EXPLICIT, ZYDIS_OPERAND_ACTION_READ, { 2, 4, 4 }, ZYDIS_IELEMENT_TYPE_INT, { .encoding = ZYDIS_OPERAND_ENCODING_JIMM16_32_32 } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READWRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_STATIC, { .reg = ZYDIS_REGISTER_EIP } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READWRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_GPR_SSZ, { .id = 0x4 } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_MEM, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_WRITE, { 2, 4, 8 }, ZYDIS_IELEMENT_TYPE_INT, { .mem = { 0, ZYDIS_IMPLMEM_BASE_ASP } } }, 
@@ -3067,15 +3071,15 @@ const ZydisOperandDefinition operandDefinitions[] =
     { ZYDIS_SEMANTIC_OPTYPE_MEM, ZYDIS_OPERAND_VISIBILITY_EXPLICIT, ZYDIS_OPERAND_ACTION_READ, { 16, 16, 16 }, ZYDIS_IELEMENT_TYPE_INT32, { .encoding = ZYDIS_OPERAND_ENCODING_MODRM_RM } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_WRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_FLAGS_SSZ, { .id = 0x3F } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_REL, ZYDIS_OPERAND_VISIBILITY_EXPLICIT, ZYDIS_OPERAND_ACTION_READ, { 1, 1, 1 }, ZYDIS_IELEMENT_TYPE_INT8, { .encoding = ZYDIS_OPERAND_ENCODING_JIMM8 } }, 
-    { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READWRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_STATIC, { .reg = ZYDIS_REGISTER_RIP } } } }, 
-    { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READ, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_FLAGS_SSZ, { .id = 0x3F } } } }, 
-    { ZYDIS_SEMANTIC_OPTYPE_REL, ZYDIS_OPERAND_VISIBILITY_EXPLICIT, ZYDIS_OPERAND_ACTION_READ, { 1, 1, 1 }, ZYDIS_IELEMENT_TYPE_INT8, { .encoding = ZYDIS_OPERAND_ENCODING_JIMM8 } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READWRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_STATIC, { .reg = ZYDIS_REGISTER_EIP } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READ, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_FLAGS_SSZ, { .id = 0x3F } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_REL, ZYDIS_OPERAND_VISIBILITY_EXPLICIT, ZYDIS_OPERAND_ACTION_READ, { 4, 4, 4 }, ZYDIS_IELEMENT_TYPE_INT32, { .encoding = ZYDIS_OPERAND_ENCODING_JIMM32 } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READWRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_STATIC, { .reg = ZYDIS_REGISTER_RIP } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READ, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_FLAGS_SSZ, { .id = 0x3F } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_REL, ZYDIS_OPERAND_VISIBILITY_EXPLICIT, ZYDIS_OPERAND_ACTION_READ, { 2, 4, 4 }, ZYDIS_IELEMENT_TYPE_INT, { .encoding = ZYDIS_OPERAND_ENCODING_JIMM16_32_32 } }, 
+    { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READWRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_STATIC, { .reg = ZYDIS_REGISTER_RIP } } } }, 
+    { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READ, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_FLAGS_SSZ, { .id = 0x3F } } } }, 
+    { ZYDIS_SEMANTIC_OPTYPE_REL, ZYDIS_OPERAND_VISIBILITY_EXPLICIT, ZYDIS_OPERAND_ACTION_READ, { 2, 4, 4 }, ZYDIS_IELEMENT_TYPE_INT, { .encoding = ZYDIS_OPERAND_ENCODING_JIMM16_32_32 } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READWRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_STATIC, { .reg = ZYDIS_REGISTER_EIP } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READ, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_FLAGS_SSZ, { .id = 0x3F } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_REL, ZYDIS_OPERAND_VISIBILITY_EXPLICIT, ZYDIS_OPERAND_ACTION_READ, { 1, 1, 1 }, ZYDIS_IELEMENT_TYPE_INT8, { .encoding = ZYDIS_OPERAND_ENCODING_JIMM8 } }, 
@@ -5662,6 +5666,8 @@ const ZydisOperandDefinition operandDefinitions[] =
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READWRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_FLAGS_SSZ, { .id = 0x3F } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_IMPLICIT, ZYDIS_OPERAND_ACTION_READ, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_GPR_OSZ, { .id = 0x0 } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_IMPLICIT, ZYDIS_OPERAND_ACTION_READ, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_STATIC, { .reg = ZYDIS_REGISTER_ECX } } } }, 
+    { ZYDIS_SEMANTIC_OPTYPE_REL, ZYDIS_OPERAND_VISIBILITY_EXPLICIT, ZYDIS_OPERAND_ACTION_READ, { 1, 1, 1 }, ZYDIS_IELEMENT_TYPE_INT8, { .encoding = ZYDIS_OPERAND_ENCODING_JIMM8 } }, 
+    { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_READWRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_STATIC, { .reg = ZYDIS_REGISTER_RIP } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_GPR16_32_64, ZYDIS_OPERAND_VISIBILITY_EXPLICIT, ZYDIS_OPERAND_ACTION_READ, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .encoding = ZYDIS_OPERAND_ENCODING_MODRM_RM } }, 
     { ZYDIS_SEMANTIC_OPTYPE_IMPLICIT_REG, ZYDIS_OPERAND_VISIBILITY_HIDDEN, ZYDIS_OPERAND_ACTION_WRITE, { 0, 0, 0 }, ZYDIS_IELEMENT_TYPE_INVALID, { .reg = { ZYDIS_IMPLREG_TYPE_IP_SSZ, { .id = 0x3F } } } }, 
     { ZYDIS_SEMANTIC_OPTYPE_MEM, ZYDIS_OPERAND_VISIBILITY_EXPLICIT, ZYDIS_OPERAND_ACTION_READ, { 2, 4, 8 }, ZYDIS_IELEMENT_TYPE_INT, { .encoding = ZYDIS_OPERAND_ENCODING_MODRM_RM } }, 

tools/ZydisInfo.c

@@ -590,7 +590,7 @@ int main(int argc, char** argv)
     {
         fputs("Usage: ZydisInfo -[16|32|64] [hexbytes]\n", stderr);
         return ZYDIS_STATUS_INVALID_PARAMETER;
-    }
+    }  
 
     uint8_t data[ZYDIS_MAX_INSTRUCTION_LENGTH];
     uint8_t length = 0;