Q5 Solution - Name: _ Student Number: _ Trent University...

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Name: ______________________ Student Number: _____________________ Trent University Computer Science 230H Fall 2007 Quiz #5 Topic: CU and MIPS Total of 10 marks Open Text Book Duration: 1 hour 1. [2 marks] Give a sequence of microinstructions and the timing which could correspond to the following instructions. a) JMP Y - control of the program should jump to memory address Y. t1: PC (IR (address)) b) SUB T1, X – subtract the contents of memory location X from register T1, save the result in T1, and continue with the execution of the next instruction. t1: MAR (IR(address)) t2: MBR X PC (PC) + I t3: T1 (T1) - (MBR) 1
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Student Number: _____________________ 2. [1 mark] Using the Instruction Cycle Flowchart below define the sequence of the states of the two-bit register ICC ( Instruction Cycle Code ) for an ADD instruction that fetches one operand using an indirect mode of memory referencing, performs the addition operation after which an interrupt takes place. ICC: 00
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This note was uploaded on 02/14/2010 for the course COMPUTER S COIS-3030 taught by Professor Hircock during the Spring '10 term at Trent University.

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Q5 Solution - Name: _ Student Number: _ Trent University...

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