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294 lines
9.5 KiB
294 lines
9.5 KiB
/***************************************************************************************************
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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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/**
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* @file
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* Utility functions and constants for registers.
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*/
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#ifndef ZYDIS_REGISTER_H
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#define ZYDIS_REGISTER_H
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#include <Zycore/Defines.h>
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#include <Zycore/Types.h>
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#include <Zydis/SharedTypes.h>
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#include <Zydis/ShortString.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* ============================================================================================== */
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/* Enums and types */
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/* ============================================================================================== */
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/* ---------------------------------------------------------------------------------------------- */
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/* Registers */
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/* ---------------------------------------------------------------------------------------------- */
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#include <Zydis/Generated/EnumRegister.h>
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/* ---------------------------------------------------------------------------------------------- */
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/* Register classes */
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/* ---------------------------------------------------------------------------------------------- */
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/**
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* Defines the `ZydisRegisterClass` enum.
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*
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* Please note that this enum does not contain a matching entry for all values of the
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* `ZydisRegister` enum, but only for those registers where it makes sense to logically group them
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* for decoding/encoding purposes.
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*
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* These are mainly the registers that can be identified by an id within their corresponding
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* register-class. The `IP` and `FLAGS` values are exceptions to this rule.
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*/
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typedef enum ZydisRegisterClass_
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{
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ZYDIS_REGCLASS_INVALID,
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/**
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* 8-bit general-purpose registers.
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*/
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ZYDIS_REGCLASS_GPR8,
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/**
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* 16-bit general-purpose registers.
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*/
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ZYDIS_REGCLASS_GPR16,
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/**
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* 32-bit general-purpose registers.
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*/
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ZYDIS_REGCLASS_GPR32,
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/**
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* 64-bit general-purpose registers.
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*/
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ZYDIS_REGCLASS_GPR64,
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/**
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* Floating point legacy registers.
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*/
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ZYDIS_REGCLASS_X87,
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/**
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* Floating point multimedia registers.
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*/
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ZYDIS_REGCLASS_MMX,
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/**
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* 128-bit vector registers.
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*/
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ZYDIS_REGCLASS_XMM,
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/**
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* 256-bit vector registers.
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*/
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ZYDIS_REGCLASS_YMM,
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/**
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* 512-bit vector registers.
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*/
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ZYDIS_REGCLASS_ZMM,
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/**
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* Matrix registers.
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*/
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ZYDIS_REGCLASS_TMM,
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/*
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* Flags registers.
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*/
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ZYDIS_REGCLASS_FLAGS,
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/**
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* Instruction-pointer registers.
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*/
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ZYDIS_REGCLASS_IP,
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/**
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* Segment registers.
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*/
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ZYDIS_REGCLASS_SEGMENT,
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/**
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* Test registers.
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*/
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ZYDIS_REGCLASS_TEST,
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/**
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* Control registers.
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*/
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ZYDIS_REGCLASS_CONTROL,
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/**
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* Debug registers.
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*/
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ZYDIS_REGCLASS_DEBUG,
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/**
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* Mask registers.
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*/
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ZYDIS_REGCLASS_MASK,
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/**
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* Bound registers.
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*/
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ZYDIS_REGCLASS_BOUND,
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/**
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* Maximum value of this enum.
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*/
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ZYDIS_REGCLASS_MAX_VALUE = ZYDIS_REGCLASS_BOUND,
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/**
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* The minimum number of bits required to represent all values of this enum.
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*/
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ZYDIS_REGCLASS_REQUIRED_BITS = ZYAN_BITS_TO_REPRESENT(ZYDIS_REGCLASS_MAX_VALUE)
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} ZydisRegisterClass;
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/* ---------------------------------------------------------------------------------------------- */
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/* Register width */
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/* ---------------------------------------------------------------------------------------------- */
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/**
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* Defines the `ZydisRegisterWidth` data-type.
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*/
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typedef ZyanU16 ZydisRegisterWidth;
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/* ---------------------------------------------------------------------------------------------- */
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/* Register context */
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/* ---------------------------------------------------------------------------------------------- */
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/**
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* Defines the `ZydisRegisterContext` struct.
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*/
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typedef struct ZydisRegisterContext_
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{
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/**
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* The values stored in the register context.
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*/
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ZyanU64 values[ZYDIS_REGISTER_MAX_VALUE + 1];
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} ZydisRegisterContext;
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/* ---------------------------------------------------------------------------------------------- */
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/* ============================================================================================== */
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/* Exported functions */
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/* ============================================================================================== */
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/**
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* @addtogroup register Register
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* Functions allowing retrieval of information about registers.
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* @{
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*/
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/* ---------------------------------------------------------------------------------------------- */
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/* Register */
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/* ---------------------------------------------------------------------------------------------- */
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/**
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* Returns the register specified by the `register_class` and `id` tuple.
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*
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* @param register_class The register class.
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* @param id The register id.
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*
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* @return The register specified by the `register_class` and `id` tuple or `ZYDIS_REGISTER_NONE`,
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* if an invalid parameter was passed.
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*/
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ZYDIS_EXPORT ZydisRegister ZydisRegisterEncode(ZydisRegisterClass register_class, ZyanU8 id);
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/**
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* Returns the id of the specified register.
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*
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* @param reg The register.
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*
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* @return The id of the specified register, or -1 if an invalid parameter was passed.
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*/
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ZYDIS_EXPORT ZyanI8 ZydisRegisterGetId(ZydisRegister reg);
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/**
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* Returns the register-class of the specified register.
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*
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* @param reg The register.
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*
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* @return The register-class of the specified register.
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*/
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ZYDIS_EXPORT ZydisRegisterClass ZydisRegisterGetClass(ZydisRegister reg);
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/**
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* Returns the width of the specified register.
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*
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* @param mode The active machine mode.
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* @param reg The register.
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*
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* @return The width of the specified register, or `ZYDIS_REGISTER_NONE` if the register is
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* invalid for the active machine-mode.
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*/
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ZYDIS_EXPORT ZydisRegisterWidth ZydisRegisterGetWidth(ZydisMachineMode mode, ZydisRegister reg);
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/**
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* Returns the largest enclosing register of the given register.
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*
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* @param mode The active machine mode.
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* @param reg The register.
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*
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* @return The largest enclosing register of the given register, or `ZYDIS_REGISTER_NONE` if the
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* register is invalid for the active machine-mode or does not have an enclosing-register.
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*/
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ZYDIS_EXPORT ZydisRegister ZydisRegisterGetLargestEnclosing(ZydisMachineMode mode,
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ZydisRegister reg);
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/**
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* Returns the specified register string.
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*
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* @param reg The register.
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*
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* @return The register string or `ZYAN_NULL`, if an invalid register was passed.
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*/
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ZYDIS_EXPORT const char* ZydisRegisterGetString(ZydisRegister reg);
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/**
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* Returns the specified register string as `ZydisShortString`.
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*
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* @param reg The register.
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*
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* @return The register string or `ZYAN_NULL`, if an invalid register was passed.
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*
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* The `buffer` of the returned struct is guaranteed to be zero-terminated in this special case.
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*/
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ZYDIS_EXPORT const ZydisShortString* ZydisRegisterGetStringWrapped(ZydisRegister reg);
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/* ---------------------------------------------------------------------------------------------- */
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/* Register class */
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/* ---------------------------------------------------------------------------------------------- */
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/**
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* Returns the width of the specified register-class.
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*
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* @param mode The active machine mode.
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* @param register_class The register class.
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*
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* @return The width of the specified register.
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*/
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ZYDIS_EXPORT ZydisRegisterWidth ZydisRegisterClassGetWidth(ZydisMachineMode mode,
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ZydisRegisterClass register_class);
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/* ---------------------------------------------------------------------------------------------- */
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/**
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* @}
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*/
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/* ============================================================================================== */
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#ifdef __cplusplus
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}
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#endif
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#endif /* ZYDIS_REGISTER_H */
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