Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Reduced Instruction Set Computer (RISC):
As we discussed before most of the modern CPUs are of the GPR (General Purpose Register) type. A few instances of such type of CPUs are the, IBM 360, Intel 80x86 ,Motorola 68xxx and DEC VAX But as these CPUS were obviously better than previous accumulator and stack based CPUs they were yet lacking in various areas:
1. The instructions were of varying length from 1 byte to 6-8 bytes. It is reason of problems with the pre- fetching and pipelining of instructions.
2. ALU (Arithmetic Logical Unit) instructions could have operands that were memory locations. Since the number of cycles it takes to access memory varies so does the all instruction. It isn't good for pipelining, compiler writers and several multiple issues.
3. Most of the ALU instruction had only 2 operands where 1 of the operands is also the destination. It means this operand is cracked in the time operation or it ought to be saved before somewhere.
Therefore in the early 80's the idea of RISC was come. The SPARC project was begun at Berkeley and the MIPS project at Stanford. RISC means Reduced Instruction Set Computer. The ISA is composed of instructions that all have accurately the similar size, typically 32 bits. so they can be pipelined and pre-fetched and successfully. All of the ALU instructions have 3 operands which are just registers. Only memory access is throughout explicit LOAD/STORE instructions. Therefore A = B + C can be assembled as:
LOAD R1, A
LOAD R2, B
ADD R3, R1, R2
STORE C, R3
how work for asp.net
#what is the history of computer science
State about movable joystick In another type of movable joystick, the stick is used to activate switches that cause the screen cursor to move at a constant rate in the selected
Define Realization of one flip flop using other flip flops? It is probable to implement a flip flop circuit using any other circuit. Universal block diagram is shown below.
Q. What is Microcomputers? Microcomputers have become a common part of everyday life. The cost ranging from a few hundred to about ten thousand dollars, today's 16- and 32-bi
Define restoring method? The hardware method just explained is called the restoring method. The reason for this name is that the partial reminder is restored by adding the divi
Q. How to Add Cell Padding? As you can see, text is too close to the edges of the cells. You will add padding to the cells to leave room between text and cells. 1. Click in
What is Block scope Block scope: The variables with block scope appear in a block or within the list of formal parameter declarations in a function definition. It is visible
why partition and mounting is needed
Explain briefly Common sub expression elimination of the commonly used code optimization techniques. Common sub expression elimination: In given expression as "(a+b)-(
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd