EIP-1803: Rename opcodes for clarity


  Ethereum Improvement Proposals
        
        
          
            
              
            
          
        

        AllCoreNetworkingInterfaceERCMetaInformational

      



      
        
  
    

  
    
      🚧 Stagnant
    
    
    
    
    
      Standards Track: Interface
    
  
  
    
      EIP-1803: Rename opcodes for clarity
    
    
      
        
      
    
    
      
        
      
    
  

  

  	Authors	Alex Beregszaszi (@axic)
	Created	2017-07-28
	Discussion Link	https://ethereum-magicians.org/t/eip-1803-rename-opcodes-for-clarity/3345
	Requires	

  EIP-141




  


  

  
    Table of Contents

    	Abstract
	Specification
	Backwards Compatibility
	Implementation
	References
	Copyright



  


  
      
      
         Abstract
      
      
    


Rename the BALANCE, SHA3, NUMBER, GASLIMIT, GAS and INVALID opcodes to reflect their true meaning.

  
    
      
      
         Specification
      
      
    


Rename the opcodes as follows:

	BALANCE (0x31) to EXTBALANCE to be in line with EXTCODESIZE, EXTCODECOPY and EXTCODEHASH
	SHA3 (0x20) to KECCAK256
	NUMBER (0x43) to BLOCKNUMBER
	GASLIMIT (0x45) to BLOCKGASLIMIT to avoid confusion with the gas limit of the transaction
	GAS (0x5a) to GASLEFT to be clear what it refers to
	INVALID (0xfe) to ABORT to clearly articulate when someone refers this opcode as opposed to “any invalid opcode”


  
    
      
      
         Backwards Compatibility
      
      
    


This has no effect on any code. It can influence what mnemonics assemblers will use.

  
    
      
      
         Implementation
      
      
    


Not applicable.

  
    
      
      
         References
      
      
    


EIP-6 previously renamed SUICIDE (0xff) to SELFDESTRUCT.
Renaming SHA3 was previously proposed by EIP-59.

  
    
      
      
         Copyright
      
      
    


Copyright and related rights waived via CC0.


  Citation

  Please cite this document as:

  
  Alex Beregszaszi (@axic), "EIP-1803: Rename opcodes for clarity [DRAFT]," Ethereum Improvement Proposals, no. 1803, July 2017. [Online serial]. Available: https://eips.ethereum.org/EIPS/eip-1803.






      
    
  

  

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