Instruction set architecture - assembly language, Computer Engineering

Assignment Help:

Instruction Set Architecture (ISA):

The Instruction Set Architecture (ISA) is the part of the processor which is noticeable to the compiler writer or programmer. The ISA serves as the limit amongst hardware and software. We will deeply describe the instruction sets found in several of the microprocessors used today. The ISA of a processor can be explained by using 5 categories:

Operand Storage in the CPU 

  •   Where are the operands reserved other than in memory?

Number of explicit named operands 

  •   How many operands are named in a distinctive instruction?

Operand location

Can be any no. of ALU instruction operand be located in memory? Or ought to be all operands are kept internally in the CPU?

Operations

What type of operations is provided in the ISA.?

Type and size of operands

What is the size and type of per operand and how is it mention?

 In all the above the most distinctive factor is the first. The most common types of ISAs are as following:

a. Stack: - The operands are put implicitly on top of the stack.

b. Accumulator:-One operand is implicitly mentions in the accumulator.

c. General Purpose Register (GPR) - All operands are explicitly specified, they are either memory locations or registers.

Assembly code of

A = B + C;

in all  of the above three architectures:

2412_Instruction Set Architecture - assembly language.png

Notice the fact that every processor may be neatly tagged into any 1 of the above categories. The i8086 contain much instruction that use implicit operands though it has a general register set. The i8051 is another instance, it has four banks of GPRs but most instructions might have the A register as one of its operands.

 


Related Discussions:- Instruction set architecture - assembly language

Addition NO-SIGNS to the Write statement, Suppressing the number signs (+/-...

Suppressing the number signs (+/-) is carried out using the addition NO-SIGNS to the Write statement. Statement is false.

Registers used in IA-64 architecture, Q. Registers used in IA-64 architectu...

Q. Registers used in IA-64 architecture ? Registers: The IA-64 architecture comprises a very generous set of registers. It has an 82-bit floating point as well as 64-bit inte

Shm, composition of two shm in right angles to each other to havingg time p...

composition of two shm in right angles to each other to havingg time period in the ratio 1:2

Unification algorithm - artificial intelligence, Unification Algorithm - Ar...

Unification Algorithm - Artificial intelligence: To merge two statements, we should get a substitution which forms the two sentences similar. Remember that we write V/T to sign

Future trends of microcontrollers, Currently microcontrollers are embedded ...

Currently microcontrollers are embedded within most products, typical uses are in Camera's for auto focus and display drivers, Laser printers to compute fonts and control printing.

Grid computing, Grid Computing means applying the resources of a lot of com...

Grid Computing means applying the resources of a lot of computers in a network simultaneously to a one problem for solving a scientific or a technical problem that needs a large nu

Define the thread libraries, Q. Define the Thread libraries? The most d...

Q. Define the Thread libraries? The most distinctive representatives of shared memory programming models are thread libraries present in most of modern operating systems. Illus

Hazard in pipeline - computer architecture, Hazard in pipeline - computer a...

Hazard in pipeline - computer architecture: A hazard in pipeline .-removing a hazard frequently need that some instructions in the pipeline to be permitted to proceed as othe

Ip fragmentation of user datagarm, IP specified that datagram can arrive in...

IP specified that datagram can arrive in a different order than they were sent. If a fragment from one datagram arrives at a destination before all the segments from a previous dat

Write Your Message!

Captcha
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!

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