[New post] Quickpost: Machine Code Infinite Loop

Didier Stevens posted: " Someone asked me what the byte sequence is for an infinite loop in x86 machine code (it's something you could use while debugging, for example). That byte sequence is just 2 bytes long: EB FE. It's something you can check with nasm, for example. " Quickpost: Machine Code Infinite Loop Didier Stevens Apr 30 Someone asked me what the byte sequence is for an infinite loop in x86 machine code (it's something you could use while debugging, for example). That byte sequence is just 2 bytes long: EB FE. It's something you can check with nasm, for example. File jump-infinite-loop.asm: BITS 32 loop1: jmp loop1 loop2: jmp short loop2 jmp $ jmp short $ jmp short -2 nasm jump-infinite-loop.asm -l jump-infinite-loop.lst File jump-infinite-loop.lst: 1 BITS 32 2 3 loop1: 4 00000000 EBFE jmp loop1 5 loop2: 6 00000002 EBFE jmp short loop2 7 00000004 EBFE jmp $ 8 00000006 EBFE jmp short $ 9 00000008 EB(FE) jmp short -2 Quickpost info Comment You can also reply to this email to leave a comment. Unsubscribe to no longer receive posts from Didier Stevens. Change your email settings at manage subscriptions. Trouble clicking? Copy and paste this URL into your browser: http://blog.didierstevens.com Powered by WordPress.com