4 ms·
LEA and MOV are doing different things. LEA is just calculating the effective address, but MOV calculates the address then retrieves the value stored at that ad
by HarHarVeryFunny 11mo ago
LEA and MOV are doing different things. LEA is just calculating the effective address, but MOV calculates the address then retrieves the value stored at that address.
e.g. If base + (index * scale) + offset = 42, and the value at address 42 is 3, then:
LEA rax, [base + index * scale + offset] will set rax = 42
MOV rax, [base + index * scale + offset] will set rax = 3
- dataflow 11mo agoI assumed they're referring to register-register moves?
- HarHarVeryFunny 11mo agoOK, so: LEA eax, [ebx] instead of: MOV eax, ebx But of course: MOV eax, [ebx] is not the same.