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@flobernd flobernd released this 02 Oct 13:02
· 383 commits to master since this release
v3.0.0
ce4a42f

Detailed changelog (since v2.0.3)

Decoder

  • Improved legacy prefix decoding
  • Fixed gather register check for VGATHERPF0{D|Q}{PS|PD} instruction
  • Fixed some incorrect assert conditions
  • Fixed check for invalid BOUND registers
  • Fixed incorrect value of ZydisDecodedInstruction.raw.prefixes[n].type in some edge cases

Formatter

  • Implemented AT&T formatter-style
  • Implemented MASM formatter-style
  • Implemented tokenization feature to the instruction
    • ZydisFormatterTokenizeInstruction/ZydisFormatterTokenizeInstructionEx and ZydisFormatterTokenizeOperand/ZydisFormatterTokenizeOperandEx generates a token-list instead of a simple string
    • Each token has a type (like MNEMONIC, REGISTER, DELIMITER) and contains a string
    • Tokenization allows users to receive the formatted instructions as a stream of tokens with annotations of their purpose, allowing for easier implementation of features such as syntax highlighting
  • Numeric base (decimal, hexadecimal), signedness and padding can now be independently configured for all numeric types (addresses, displacements and immediates)
  • Added "detailed prefixes" mode
    • Prints all instruction prefixes instead of only the effective ones
  • Replaced the ZYDIS_FORMATTER_PROP_UPPERCASE property with more granular options
    • Allows configuration of the letter-case individually for prefixes, mnemonics, registers, typecasts and decorators
  • Implemented more formatter options
    • ZYDIS_FORMATTER_PROP_FORCE_RELATIVE_BRANCHES
      • Prints relative addresses instead of absolute ones for branch instructions
    • ZYDIS_FORMATTER_PROP_FORCE_RELATIVE_RIPREL
      • Prints relative addresses instead of absolute ones for EIP/RIP-relative instructions
    • ZYDIS_FORMATTER_PROP_PRINT_BRANCH_SIZE
      • Prints the size of branch instructions (short/near)

Database

  • Added BF16 instructions
  • Added vp2intersect{d|q} instructions
  • Added enqcmd and enqcmds instructions
  • Added AMD rdpru instruction
  • Added PADLOCK instructions
  • Added CLDEMOTE, MOVDIR and WAITPKG extensions
  • Added implicit PKRU register to the RDPKRU/WRPKRU instructions
  • Fixed exception-class of v4fmaddss, v4fnmaddss and vcvtps2ph
  • Fixed KNL gather/scatter memory operand width
  • Fixed mask-mode for some EVEX instructions
  • Fixed element size of VP4DPWSSDS memory operand
  • Fixed MONITOR, MONITORX, MWAIT and MWAITX operands
  • Fixed CLRSSBSY memory operand is read-write
  • Fixed VMREAD destination operand is write-only
  • Fixed decoding of nop (0F 1C) with 66 prefix
  • Fixed decoding of rdrand and rdseed with 66 prefix
  • Fixed decoding of xstore with 66 prefix
  • Adjusted element-type for auto generated FLAGS/EFLAGS/RFLAGS and X87STATUS operands
  • Updated movsxd source register width
  • Introduced a new element-type for condition-codes
    • This allows generic detection of condition-code operands without hardcoding any instruction mnemonics (e.g. used by CMPPS, VCMPPD, ...)
  • Added support for non-default address-size configurations
    • Some instructions (e.g. ENCLS or BNDCL) are using non-default address-size configurations like ignoring the address-size override prefix or forcing the address size to certain values
  • Use MODRM_RM instead of MODRM_REG for the destination register of EXTRQ
  • Removed W0 filter from LLWPCB/SLWPCB (is allowed to have 64-bit operand-size)
  • Added new attributes for instructions that access CPU/FPU/XMM state
    • ZYDIS_ATTRIB_CPU_STATE_{CR|CW} for general CPU-state access
    • ZYDIS_ATTRIB_FPU_STATE_{CR|CW} for FPU-state (x87 and MMX) access
    • ZYDIS_ATTRIB_XMM_STATE_{CR|CW} for XMM-state access
  • Fixed CPU-flag actions for instructions that TEST and MODIFIY certain flags at the same time
    • Introduced a new CPU-flag action called TESTED_MODIFIED
  • Added ZYDIS_ATTRIB_CPU_STATE_{CR|CW} attribute to iret{d|q}
  • Added implicit writes for the CS and SS registers to syscall and sysret

Misc

  • Implemented color support (VT100) and syntax highlighting for the ZydisInfo tool
  • Added ZydisGetInstructionSegments helper function
    • Returns a list that maps the different instruction segments (like OPCODE, MODRM, ...) to an offset-size pair
    • The ZydisInfo tool now prints the hexadecimal instruction bytes using different colors considering the instruction segment
  • Added ZydisCalcAbsoluteAddressEx which takes an additional register-context argument to allow calculation of addresses depending on runtime register values
  • Introduced ZYDIS_MINIMAL_MODE CMake option
    • Forces ZYDIS_DECODER_MODE_MINIMAL
    • Reduces file size by excluding unused code and data-tables
  • Improved MSVC project
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