Suppose the order of the third and fourth cases (the two forwarding sources from the memory stage)

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Suppose the order of the third and fourth cases (the two forwarding sources from the memory stage) in the HCL code for d_valA were reversed. Describe the resulting behavior of the rrmovq instruction (line 5) for the following program:

1 2 3 4 5 irmovq $5, %rdx irmov $0x100, %rsp rmmovq %rdx, 0(%rsp) popq %rsp rrmovq %rsp,%rax

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Computer Systems A Programmers Perspective

ISBN: 9781292101767

3rd Global Edition

Authors: Randal E. Bryant, David R. O'Hallaron

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