Convert this x86-64 code shown above to Y86-64 code. Function arithEx() long int

Question

Convert this x86-64 code shown above to Y86-64 code.

Function arithEx() long int arithEx(long int x, long int y, long int z, long w, long m, long n, long o, long p) { return (x + y + z + w + m + n + o + p): } Compilation command: gcc -O1 -S arithex.c arithEx: leaq (%rsi, %rdi), %rdi: %rdi leftarrow y + x leaq (%rdi, %rdx), %rdx: %rax leftarrow y + x + z addq %rcx, %rdx: %rdx leftarrow y + x + z + w addq %r8, %rdx: %rdx leftarrow y + x + z + w + m addq %r9, %rdx: %rdx leftarrow y + x + z + w + m + n movq %rdx, %rax: %rax leftarrow y + x + z + w + m + n addq 8 (%rsp), %rax: %rax leftarrow y + x + z + w + m + n + o addq 16(%rsp), %rax: %rax leftarrow y + x + z + w + m + n + o + p ret

Explanation / Answer

arithex :

pushl %rax # save rax which used as temporary for adding the offset

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