Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

2- Consider the internal structure of a pseudo-CPU discussed in class. Suppose the pseudo-CPU can be used to implement the hypothetical instructions given below (Actually,

image text in transcribed

2- Consider the internal structure of a pseudo-CPU discussed in class. Suppose the pseudo-CPU can be used to implement the hypothetical instructions given below (Actually, these are instructions from PDP-8, which is the first commercially successful minicomputer from the 60's). Give the sequence of microoperations required to implement the Fetch and Execute cycle for each of the instructions shown below. Your solution should result in minimum number of microoperations. Assume PC is currently pointing to the instruction and only PC and AC have the capability to increment itself. (a) Logical AND: AND Y; AC + AC A M(Y) (b) Increment and skip if zero: ISZ Y; M(Y) M(Y) + 1, If(M(Y)+1=0) Then PC PC +1 (c) Deposit and clear the accumulator: DCA Y; M(Y) + AC, AC 0 (d) Jump to subroutine: JMS Y; M(Y) PC, PC + Y+1

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

DATABASE Administrator Make A Difference

Authors: Mohciine Elmourabit

1st Edition

B0CGM7XG75, 978-1722657802

More Books

Students also viewed these Databases questions

Question

What are the characteristics of a fragmented industry?

Answered: 1 week ago