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  1. #1
    Newbie level 1
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    SPIM MIPS32 simulator warning: Error: MIPS32 Rev 2 instruction is not implemented.

    Hello!

    I have generated an assembly file for AES encryption using MIPS32 compiler.
    When I use SPIM simulator it gives me the following error:
    spim: (parser) Warning: MIPS32 Rev 2 instruction is not implemented. Instruction ignored. on line 712 of file AES_main.s
    seb $3,$2

    I understand it has something to do with seb, but I am not sure what is the workaround to avoid this.

    Hoping to hear some suggestions soon!

    TIA

    Tevian

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  2. #2
    Full Member level 3
    Points: 4,634, Level: 16

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    Re: SPIM MIPS32 simulator warning: Error: MIPS32 Rev 2 instruction is not implemented

    If you are using gcc -march=mips32 should prevent compiler from generating mips32r2 instructions.



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