tools/arch/x86/lib/x86-opcode-map.txt

Source file repositories/reference/linux-study-clean/tools/arch/x86/lib/x86-opcode-map.txt

File Facts

System
Linux kernel
Corpus path
tools/arch/x86/lib/x86-opcode-map.txt
Extension
.txt
Size
48163 bytes
Lines
1432
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: documentation
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

# x86 Opcode Maps
#
# This is (mostly) based on following documentations.
# - Intel(R) 64 and IA-32 Architectures Software Developer's Manual Vol.2C
#   (#326018-047US, June 2013)
#
#<Opcode maps>
# Table: table-name
# Referrer: escaped-name
# AVXcode: avx-code
# opcode: mnemonic|GrpXXX [operand1[,operand2...]] [(extra1)[,(extra2)...] [| 2nd-mnemonic ...]
# (or)
# opcode: escape # escaped-name
# EndTable
#
# mnemonics that begin with lowercase 'v' accept a VEX or EVEX prefix
# mnemonics that begin with lowercase 'k' accept a VEX prefix
#
#<group maps>
# GrpTable: GrpXXX
# reg:  mnemonic [operand1[,operand2...]] [(extra1)[,(extra2)...] [| 2nd-mnemonic ...]
# EndTable
#
# AVX Superscripts
#  (ev): this opcode requires EVEX prefix.
#  (es): this opcode requires EVEX prefix and is SCALABALE.
#  (evo): this opcode is changed by EVEX prefix (EVEX opcode)
#  (v): this opcode requires VEX prefix.
#  (v1): this opcode only supports 128bit VEX.
#  (xop): this opcode accepts XOP prefix.
#
# XOP Superscripts
#  (W=0): this opcode requires XOP.W == 0
#  (W=1): this opcode requires XOP.W == 1
#
# Last Prefix Superscripts
#  - (66): the last prefix is 0x66
#  - (F3): the last prefix is 0xF3
#  - (F2): the last prefix is 0xF2
#  - (!F3) : the last prefix is not 0xF3 (including non-last prefix case)
#  - (66&F2): Both 0x66 and 0xF2 prefixes are specified.
#
# REX2 Prefix Superscripts
#  - (!REX2): REX2 is not allowed
#  - (REX2): REX2 variant e.g. JMPABS

Table: one byte opcode
Referrer:
AVXcode:
# 0x00 - 0x0f
00: ADD Eb,Gb
01: ADD Ev,Gv
02: ADD Gb,Eb
03: ADD Gv,Ev
04: ADD AL,Ib
05: ADD rAX,Iz
06: PUSH ES (i64)
07: POP ES (i64)
08: OR Eb,Gb
09: OR Ev,Gv
0a: OR Gb,Eb
0b: OR Gv,Ev
0c: OR AL,Ib
0d: OR rAX,Iz
0e: PUSH CS (i64)
0f: escape # 2-byte escape
# 0x10 - 0x1f
10: ADC Eb,Gb
11: ADC Ev,Gv
12: ADC Gb,Eb

Annotation

Implementation Notes