Home Search results for: computer system performance measurement instruction set processor level and microcode level. Finally, effectiveness and ease of use of the discussed techniques are considered. Author : Stanford University. Author : Wing N. A computer system analyst must master a number of techniques to ascertain important factors and their effect on system performance. The accumulator contains one of the operand and is used to store the result.
One-address instruction uses an implied accumulator Ac register for all data manipulation. All operations are done between the AC register and a memory operand. It is assumed that the computer has two processor registers R1 and R2. The symbol M[A] denotes the operand at memory address symbolized by A.
Welcome Back. Continue with Google. Continue with Facebook. Forgot Password? New User? Sign Up. Create your account now. Signup with Email. Gender Male Female. Create Account. Already Have an Account? The bits of the instruction are divided into groups called fields. The most common fields in instruction formats are: An Operation code field that specifies the operation to be performed. An Address field that designates a memory address or a processor register. A Mode field that specifies the way the operand or the effective address is determined.
Types of Instruction Computers may have instructions of several different lengths containing varying number of addresses. The number of address fields in the instruction format of a computer depends on the internal organization of its registers.
Most computers fall into one of 3 types of CPU organizations Single accumulator organization:- All the operations are performed with an accumulator register. Micro operation also transferring data between registers or between register and buses of CPU and performing arithmetic or logical operations on registers.
Instruction fetch Instruction decode Instruction execution Instruction program. Instruction execution: CPU executes the instructions of the program to complete a task and the major responsibility of the instruction execution is with the CPU. The instruction execution takes place in the CPU registers Instruction decode: The decoding process allows the CPU to determine what instruction is to be performed so that the CPU can tell how many operands it needs to fetch in order to perform the instruction.
So Instruction execution is the correct answer. Case 2, 2 Case 2, 3 Case 1, 2 Case 1, 3. Solving both the cases with 2-Address format. Therefore, Case 1 has less MOV operations and that is 3. Answer Detailed Solution Below Option 2 : Exam Preparation Simplified Learn, practice, analyse and improve. Testbook Edu Solutions Pvt.
Our Apps. Register 6 bits. Immediate Value 4 bits. Register 1.
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