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## x86-assembly-notes.md

      
        
          
            
              
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                mikesmullin
                / x86-assembly-notes.md
            
            
              Last active
              June 19, 2024 16:42
            
              
                Notes on x86-64 Assembly and Machine Code
              
          
        
      
        
  
      
    Mike's x86-64 Assembly (ASM) Notes

Assembling Binary Machine Code

Operating Modes:

These determine the assumed/default size of instruction operands,
and restricts which opcodes are available, and how they are used.
Modern operating systems, booted inside Real mode,