x86 instruction listings - Wikipedia
8086/8088 datasheet documents only base 10 version of the AAD instruction (opcode 0xD5 0x0A), but any other base will work. Later Intel's documentation has the generic form too. NEC V20 and V30 (and possibly other NEC V-series CPUs) always use base 10, and ignore the argument, causing a number of incompatibilities. Compare bytes in memory.
X86 Opcode and Instruction Reference
This column is present only in geek's editions. It contain present Primary Opcode binary fields. These are: +r means a register code, from 0 through 7, added to the basic value of the Primary Opcode. 40 INC
X86-64 Instruction Encoding - OSDev Wiki
2024年6月24日 · 3DNow! opcodes. 3DNow! opcodes consist of, in this order: fixed opcode; (ModR/M, SIB, displacement); immediate opcode byte. Fixed opcode. All 3DNow! opcodes have a fixed two-byte sequence equal to 0x0F 0x0F in the opcode position of …
x86 and amd64 instruction reference - felixcloutier.com
2024年2月18日 · Derived from the December 2023 version of the Intel® 64 and IA-32 Architectures Software Developer’s Manual. Last updated 2024-02-18. THIS REFERENCE IS NOT PERFECT. It's been mechanically separated into distinct files by a dumb script.
assembly - Intel x86 Opcode Reference? - Stack Overflow
2017年5月24日 · AsmDB comes with a tool called x86util.js, which can index the x86 database into much more friendly representation that can be used to actually do something with it. Let's write a simple tool in node.js that prints all instructions that …
Intel x86 Assembler Instruction Set Opcode Table
A ModR/M byte follows the opcode and specifies the operand. The operand is either a general-purpose register or a memory address. If it is a memory address, the address is computed from a segment register and any of the following values: a base register, an index register, a scaling factor, a displacement.
coder64 edition | X86 Opcode and Instruction Reference 1.12
X86 Opcode and Instruction Reference Home Other editions: coder32 , coder , geek32 , geek64 , geek 32/64-bit ModR/M Byte | 32/64-bit SIB Byte
Intel x86 Opcode Table and Reference - Shell-Storm
Intel x86 Opcode Table and Reference . I used for years the Félix Cloutier's repository, but when it was done, I was kinda stuck and so decided to provide a backup with a different view of the index table and where all information that I need are accessible at first sight.
8.2. Instruction Opcodes - Intel
The OP field in the Nios II instruction word specifies the major class of an opcode as listed in the two tables below. Most values of OP are encodings for I-type instructions. One encoding, OP = 0x00, is the J-type instruction call .
Intel 80x86 Assembly Language OpCodes - MatheMainzel.Info
Intel 80x86 Assembly Language OpCodes The following table provides a list of x86-Assembler mnemonics, that is not complete. Most of them can be found, for others see at www.intel.com