MIPS Instruction Operands
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Integer Constants
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generally represented in 16 bits or less
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Registers
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$0
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hardwired to contain the value zero
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$1,$26-$29
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reserved by the assembler or the operating system (don't use them)
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$2-$25, $30, $31, $f0-$f31
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for use by the compiler or assembly language programmer
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Memory
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[0..2**32-1] bytes or [0..2**30-1] words
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