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MBA IT, Mater in Science and Technology
Devry
Jul-1996 - Jul-2000
Professor
Devry University
Mar-2010 - Oct-2016
Hi everyone,
I need help in doing the attached assignment . Please let me know if any one can help me in solving this.
Thanks in advance.
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1CISC 640 Nova Southeastern UniversityOS Problem SetIntroductionThe following machine description will provide the basis for this assignment.You willcreate a virtual machine/operating system for the machine described below that will acceptprograms in the target machine language.The details for this assignment are presentedbelow following the machine description.MICROPROGRAMMING/MACHINE DISCRIPTIONThe following is a description of a machine called SIMMAC that contains the following:512 32-bit words of memory (memory is word addressable).Each Instruction consists of a 16-bit opcode and a 16-bit operand.An ALU for performing mathematical operations.RegistersACCAccumulator;A32-bitregisterinvolvedinallarithmeticoperations.One of the operands in each arithmetic operationmust be in the Accumulator; the other must be in primarystorage.PSIARPrimary Storage Instruction Address Register; This 16-bitregister points to the location in primary storage of the nextmachine language instruction to be executed.SARStorage Address Register; This 16-bit register is involved in allreferences to primary storage.It holds the address of thelocation in primary storage being read from or written to.SDRStorage Data Register; This 32-bit register is also involved inall references to primary storage.It holds the data beingwritten to or receives the data being read from primary storageat the location specified in the SAR.TMPRTemporary Register; This 32-bit register is used to extract theaddress portion (rightmost 16-bits) of the machine instruction inthe SDR so that it may be placed in the SAR.(No SDR to SAR
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