X86-assembly/Instructions

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x86 assembly

Instructions

Description

• Data manipulation (e.g. ADD, SUB, SHR, AND, OR, ...)
• Data transfer (e.g. MOV, XCHG, ...)
• Branching and conditionals (e.g. JMP, CALL, CMP, ...)

Instructions

A aaa aad aam aas adc add and

B bt

C call cbw cdq clc cld cli cmc cmovnz cmp cmpsb cmpsd cmpsw cpuid cwd

D daa das dec div

E enter esc

H hlt

I idiv imul in inc int into iret

J ja jae jb jbe jc je jecxz jg jge jl jle jmp jna jnae jnb jnbe jnc jne jng jnge jnl jnle jno jnp jns jnz jo jp jpe jpo js jz

L lahf lds lea leave les lock lodsb lodsw loope loop loopne loopnz loopz

M mov movsb movsd movsw movsx movsxd movzx mul

N neg nop not

O or out

P popf pop push pushad pusha pushf pushfd

R rcl rcr rdtsc repe repne repnz rep repz retf retn ret rol ror

S sahf salc sal sar sbb scasb scasd scasw setle setng setz sgdt shl shr sidt sldt smsw stc std sti stos stosb stosd stosw str sub

T test

W wait

X xchg xlat xor

Opcodes

The opcodes can be found from following online resource: https://defuse.ca/online-x86-assembler.htm

Here is an example: