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javascriptv8

What is LdaKeyedProperty in V8 byte code?

This is a sample V8 byte code.

984 E> 00000318BA8792D3 @ 41 : 29 02 07 LdaKeyedProperty a0, [7]

Solution

  • "Ld" means "load" (from memory)
    "a" means "to the accumulator register" (as most bytecodes)
    "KeyedProperty" means it's for JS code like obj[index] (as opposed to a "named property" like obj.foo).