What does lea in this x86

 

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  • What's the purpose of the LEA instruction? 14 answers

    • lea , Load Effective Address, puts the computed "memory address" in the result register. So here, rcx = rsi + 4 and rax = rsi + 0x14 .

    By the way, the second line doesn't really look like it's part of the code that sets up the stack frame, rsi is the second argument when using System V AMD64 calling conventions.

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