Consider architecture a that has the addressing

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Reference no: EM13168146

Part a) Consider architecture A that has the addressing modes below for the ADD instruction. Based on
the ADD instruction, is this architecture better be encoded as a fixed-length instruction or a variablelength
instruction. Give numerical examples to support your answer.

ADD <reg>, <reg>
ADD <reg>, <16-bit constant>
ADD <reg>, <memory address: reg1+reg2+32-bit displacement>

Part b) The architecture B below supports only these modes for the ADD instruction. Based on the ADD
instruction, is this architecture better be encoded as with fixed-length instructions or variable-length
instructions. Give numerical examples to support your answer.

ADD <reg>, <reg>, <reg>
ADD <reg>, <reg>, <12-bit constant>

Reference no: EM13168146

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