Home/ Questions/Q 7527007
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-30T03:59:42+00:00

while checking the assembly of wget I saw this, which is the beginning of

  • 0

while checking the assembly of wget I saw this, which is the beginning of the packer I assume:

UPX1:004ED812                 align 8
UPX1:004ED818
UPX1:004ED818 loc_4ED818:                             ; CODE XREF: UPX1:loc_4ED829j
UPX1:004ED818                 mov     al, [esi]
UPX1:004ED81A                 inc     esi
UPX1:004ED81B                 mov     [edi], al
UPX1:004ED81D                 inc     edi

my question is: Does the align 8 make the inc esi to be incremented each iteration by 8, which means one byte?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    INC increases by 1, otherwise hell will definitely break loose.

    More specifically, I couldn’t find any decent documentation for current assembly language. I did, however, find this reference . According to this, the align directive just controls how the next instruction opcode is aligned in memory.

    This makes a lot of sense.

    • 0