User Account

All Pages

Computer system architecture, Basic Computer Science

Assignment Help:
1.
Suppose that the meaning of the BUN instruction of the Basic Computer is changed to implement the relative addressing mode, i.e PC <- PC + AR instead of PC<- AR.

a) Write an optimal operation sequence to implement the new version, but make sure that the value of AC is not changed at the end of your implementation.
b) Is it possible to write an operation sequence to implement the new version such that, at the end of the implementation, the values AC and DR are unchanged? If yes, write such an optimal sequence. Otherwise justify why it is not possible.

2.
Write an optimal sequence of control microinstruction to implement the following register transfer:

x: AR<- AR +DR, DR <- DR + 1

Your solution should use the minimum number of cycles and it should leave AC unchanged: You may assume that AC contains an 11-bit quantity.

3.
Archie Tecture has to write Basic Computer code that contains lots of "spinning loops" of the form:
Loop: ISZ A
BUN loop
Other code….

He believes that all his "spinning loops" will run faster if he reimplements them once he makes the following changes to the basic computer.

- Add a register to the bus system CTR(count register) to be selected with S1=0
- Replace the ISZ instruction with an instruction that loads a value into CTR:
LDC Address CTR<- M[Address]
- Add a register reference instruction ICSZ with the semantics: Increment CTR and skip next instruction if zero.

Answer the following:

a) Using as a model table 5-6, write the register transfer statements for the new instruction ICSZ and LDC
b) Is Archie correct assuming that all his "spinning loops" will run faster once he reimplements them using the next instruction? Justify carefully your answer.

4.

Most machines have a shift left unit attached to the ALU. Using 4x1multiplexors and D-flip-flops, design a 4-bit shifter that accommodates these four operations: no shift, Circular shift left, logical shift right, and Circular shift right. The most significant bit is the sign bit.

Related Discussions:- Computer system architecture

How do you install a new printer, Question 1 Briefly explain the classific...

Question 1 Briefly explain the classification of the computers Question 2 What is arithmetic logic unit? How it is helpful in CPU? Question 3 How do you install a

Output options to various multimedia, The various systems (computer, softwa...

The various systems (computer, software and output devices) that are available have different limitations for output that is cartographic in nature. Some systems are CAD, GIS limit

#title.event handling, javascript handling of events

javascript handling of events

flow chart for online placement, Create systems flow chart and state trani...

Create systems flow chart and state tranistion diagram for online placement and consultancy

Social networking, SOCIAL NETWORKING:  A social network is a network o...

SOCIAL NETWORKING:  A social network is a network of individuals which have some sort of interdependence on each other. This interdependence may be in the form of friendship,

Quotation in Python, Python allows single (''), double (") and triple (''''...

Python allows single (''), double (") and triple ('''''' or """) quotes to indicate string literals, as long as the similar type of quote starts and ends the string. The triple quo

Computerised systems, Computerised Systems : You would have realized by no...

Computerised Systems : You would have realized by now that computing systems are most useful for manipulating information. Any organisation and management of information basically

Multiplaxer, what is multiplaxer and truth table, digram

what is multiplaxer and truth table, digram

Digital computer, Digital computer: In the digital computer there are b...

Digital computer: In the digital computer there are basically two types of input, namely Instructions, and Data from the various radio and non-radio sensors, which will be refe

Networking and telecommunications, NETWORKING AND TELECOMMUNICATIONS: ...

NETWORKING AND TELECOMMUNICATIONS: Computers can now communicate with each other and with a range of peripheral devices, over distances with increasing speed and reliability.

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd