x64

Understanding X64 Assembly Instruction Formats

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Understanding X64 Assembly Instruction Formats

For the x86 assembly instruction format, please refer to http://bbs.pediy.com/showthread.php?t=191802 Here, I will share the x64 assembly instruction format that I researched for a day. 1. Intel Manual As you can see, there are significant changes in the x64 assembly instruction format. Without further ado, see the image. Clearly, there are additional elements compared to … Read more

Hello World in Assembly Language

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Hello World in Assembly Language

Assembly Language for x86 Architecture In assembly language, a simple “Hello, World!” program can be written like this (assuming we are using x86 architecture assembly language): section .data hello db 'Hello, World!',0 section .text global _start _start: ; write syscall mov eax, 4 mov ebx, 1 mov ecx, hello mov edx, 13 int 0x80 ; … Read more