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What does rt mean in MIPS format?

Take the MIPS instruction format described here , there are some abbreviations, for example rd, rs and rt. What does rt mean? I know that rt is the second source register in an R-type instruction and is the destination register in an I-type instruction. It is easy to guess that rd means a place to register; rs stands for register source. What about rt? I think it could be "register temporary"? Is there an authoritative source about this?

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2 answers

t is the next letter after s , so rs is the first source register, rt is the second source register. (If there may be a third source register, then it will most likely be ru .)

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rt means "target register". As mentioned above, in I-Type commands the result is written in rt

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Source: https://habr.com/ru/post/896860/

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