Decode decodes the leading bytes in src as a single instruction.

GNUSyntax returns the GNU assembler syntax for the instruction, as defined by GNU binutils.

GoSyntax returns the Go assembler syntax for the instruction.

IntelSyntax returns the Intel assembler syntax for the instruction, as defined by Intel's XED tool.

8-bit.

16-bit.

Control registers.

Debug registers.

32-bit.

32-bit.

Segment registers.

387 floating point registers.

System registers.

16-bit.

MMX registers.

address size override.

CS segment override.

operand size override.

DS segment override.

ES segment override.

FS segment override.

GS segment override.

prefix is ignored: either irrelevant or overridden by a later prefix.

prefix is implied by instruction text.

prefix makes entire instruction invalid (bad LOCK).

lock.

predict not taken (conditional branch only).

predict taken (conditional branch only).

repeat.

repeat not zero.

REX 64-bit extension prefix.

extension bit B (r/m field in modrm or base field in sib).

extension bit R (r field in modrm).

extension bit W (64-bit instruction width).

extension bit X (index field in sib).

SS segment override.

Short form of vex prefix.

Long form of vex prefix.

64-bit.

64-bit.

Task registers.

XMM registers.

These are the errors returned by Decode.

These are the errors returned by Decode.

These are the errors returned by Decode.

An Inst is a single instruction.

A Mem is a memory reference.

An Arg is a single instruction argument, one of these types: Reg, Mem, Imm, Rel.

An Args holds the instruction arguments.

An Imm is an integer constant.

An Op is an x86 opcode.

A Prefix represents an Intel instruction prefix.

Prefixes is an array of prefixes associated with a single instruction.

A Reg is a single register.

A Rel is an offset relative to the current instruction pointer.