The move instruction copies a value from one register to another. Short story about swapping bodies as a job; the person who hires the main character misuses his body, Manhwa where an orphaned woman is reincarnated into a story as a saintess candidate who is mistreated by others. Well, my guess would be a. NOP actually does something. Can someone explain why this point is giving me 8.3V? After we'd gone through most of the instructions, he said that the NOP instruction essentially did nothing and not to worry about using it. The li instruction loads a specific numeric value into that register. at least one reason to use NOP is alignment. Embedded hyperlinks in a thesis or research paper, "Signpost" puzzle from Tatham's collection. On the SPIM simulator this rule does not matter This is useful for example when one wants to jump to a certain piece of code which address isn't known. Note: after re-reading the question, this was for x86, which doesn't have delay slots (branching instead just stalls the pipeline). On what basis are pardoning decisions made by presidents or governors when exercising their pardoning power? Is there much difference between X86 Assembly language on Windows and Linux? Another use-case for NOP instruction would be something called a NOP sled. Putting a nop in that location would then fix the bug. move the result of a multiplication into a general What does 'They're at four. What were the poems other than those by Donne in the Melford Hall manuscript? The move instruction copies a value from one register to another. On the 8086, for example, code would be fetched in two-byte chunks, and the processor had an internal "prefetch" buffer which could hold three such chunks. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. A nop may be used in a a delay slot when no other instruction may be reordered to be placed in there. Many of these instructions The bug that you saw was likely someone filling one of the things that must not be put into the delay slot. What is the difference between these two lines? I instructions are used when the instruction must operate on an immediate value and a register value.
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