Instruction length - assembly language, Computer Engineering

Assignment Help:

Instruction Length:

Variable-length instructions (Intel 80x86, VAX) need multi-step fetch and decode, but permit for a much more flexible and compressed instruction set.
Fixed-length instructions permit easy fetch and decode, and simplify parallelism and pipelining.

All of the MIPS instructions are 32 bits long.

-this decision put effect on every other ISA decision we make because it build instruction bits scarce.

MIPS instruction format

1345_Instruction Length.png

The opcode tells the machine which format
So add r1,r2,r3 has

- Opcode=0, funct=32,rs=2,rt=3,rd=1,sa=0

- 000000 00010 00011 00001 0000 100000

Related Discussions:- Instruction length - assembly language

Explain the concept of process, The Concept of Process Unofficially a p...

The Concept of Process Unofficially a process is a program in execution subsequent to the program has been loaded in the main memory. Though a process is more than just a progr

Which class used for multicasting in ip addressing scheme, In IP addressing...

In IP addressing scheme, class used for multicasting is: A class used for multicasting in IP addressing scheme is class D.

Distinguish between combinational & sequential logic circuit, Distinguish b...

Distinguish between combinational logic circuits and sequential logic circuits. Ans: Combinational logic circuits:- (i) Outputs only depend upon present state of the i

What is artificial intelligence fuzzy logic, Fuzzy logic is a form of vario...

Fuzzy logic is a form of various-valued logic; it deals with reasoning that is approximate rather than fixed & exact. In contrast with traditional logic theory, where binary sets h

What is disk controller and word count, What is disk controller The ele...

What is disk controller The electronic circuit that controls the operation of the disk known as disk controller. word count The number of words in the block to be tran

Same reg variable in an always block, What value is inferred when multiple ...

What value is inferred when multiple procedural assignments made to the same reg variable in an always block? When there are multiple nonblocking assignments made to th

Explain the structure of virtual enterprise, Explain the Structure of Virtu...

Explain the Structure of Virtual Enterprise. The effective enterprise can be a suitable structure to explore the emerging opportunities for creating value within the informatio

Human–computer interaction, In the view of the M364 module team, HCI has be...

In the view of the M364 module team, HCI has been superseded by ID. This is because HCI traditionally concentrated upon desktop computers with single users, whereas ID includes the

Explain clearly the kuleshov experiment, Question: (a) Write a proposal...

Question: (a) Write a proposal for a 10-11 minutes movie of your choice with the expected content. (b) Explain clearly the "Kuleshov Experiment" (c) Give the checklist be

Software engineering, specialization,ggeneralization and aggregation of rai...

specialization,ggeneralization and aggregation of railway reservation system?

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages