Program for design and simulate a basic risc processor, C/C++ Programming

Assignment Help:

Overall Program Objective:

You will design and simulate a basic RISC processor.   You will create and encode an instruction set.  Your final task will be to "compile" a program into your processor's machine code, and execute that program on your simulated processor.

DESIGN AN INSTRUCTION SET

Part 1 Objective:

For this first stage of the project, you should design and encode your own original instruction set.  You will design both an assembly language and a machine code.  To complete this stage, you must do the following:

  • List all of your registers
  • List all of your instructions, and indicate what operands each instruction requires.
  • Create a unique numerical encoding for each instruction, and list out the encoding
  • Prove that your instruction set is Turing Complete.
  • Translate the C program given in this project into your assembly language and machine code.

 

Limitations:

            Your instruction set must conform to the following limitations:

  • Your instruction set must be Turing Complete.
  • You should not directly reproduce any existing instruction set (you may, of course, borrow instructions here and there).
  • Your processor must be able to access at least 256 bytes of memory, where each memory entry is 1 byte long. You may access more, but are not required to.
  • Your processor should start executing at address 0
  • You should be creative!

 

Designing an Instruction Set:

            The following is an example Turing Complete instruction set that meets the requirements of the project:

registers:

4 one-byte general purpose registers: $r0-$r3, each of which holds a two's complement number A one-byte program counter

 

            instructions:

            ADD               RA, RB           add registers RA+RB, store result in RA

            SUB                RA, RB           subtract registers RA-RB, store result in RA

            LOAD             RA, [RB]        load 1 byte from memory at address in RB into RA

            STORE           RA, [RB]        store 1 byte from RA into memory at address in RB

            LUI                 RC, IMM        load 4 bit immediate into upper 4 bits of RC, lower bits are unchanged

            LLI                  RC, IMM        load 4 bit immediate into lower 4 bits of RC, upper bits are unchanged

            JALR              RA, RB           branch to address in RB, store PC+1 into RA

            BEQZ             RA, RB           branch to address in RB only if RA contains zero

            encodings:

            ADD:              0 0 0 0 RA1 RA0 RB1 RB0

            SUB:               0 0 0 1 RA1 RA0 RB1 RB0

            LOAD:            0 0 1 0 RA1 RA0 RB1 RB0

            STORE:          0 0 1 1 RA1 RA0 RB1 RB0

            JALR:             0 1 0 0 RA1 RA0 RB1 RB0

            BEQZ:                        0 1 0 1 RA1 RA0 RB1 RB0

            LUI:                1 0 RC1 RC0 IMM3 IMM2 IMM1 IMM0

            LLI                  1 0 RC1 RC0 IMM3 IMM2 IMM1 IMM0

            all other bit combinations are "NOP" - the instruction does nothing

You may not use the above instruction set.  However, you are required to show how each of the above eight instructions can be modeled by one or more of your own instructions.

Testing Your Instruction Set:

You should translate the following C program into your assembly language and into your machine code:

char x, n, i;

n=5;

x=0;

for (i=0; i!=n; i++)

      x=x+i;

You may use registers for n and i, if you choose, but you must use address 0xA0 for x.

Part 1 Submissions:

  • A list of your instructions and a description of what they do
  • A list of all your registers and flags, and a description of how they are used
  • The bit encodings for each of your instructions
  • For each of the instructions from the example instruction set, an example of how that instruction can be simulated by your instructions
  • The C program translated into your assembly language
  • The C program translated into your machine code (include addresses)

Related Discussions:- Program for design and simulate a basic risc processor

Decode the code, smugglers are becoming very smart day by day. Now they hav...

smugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new technology, they are send

Declaring Integer variables with an example, How do you declare an integer ...

How do you declare an integer variable? Explain with an example.

Create a album using multi-dimensional arrays, Create a Document that show ...

Create a Document that show information about albums. First create a paragraph or two about the purpose of the page and your interests in music: genres, styles, etc. Next have a

Describe problem with runtime type identification?, Describe problem with R...

Describe problem with Runtime type identification? A: The run time kind identification comes at cost of performance penalty. Compiler maintains class.

Application for tag in the forest game, Your program should use the Free Pa...

Your program should use the Free Pascal compiler or the Lazarus IDE described in CSC 540. When you hand in your assignment to the digital dropbox, it should be a .PAS file, not zip

Stand-alone dsp application, You are required to write a stand-alone DSP ap...

You are required to write a stand-alone DSP application in the C programming language. The overall objective of this application is to convert a signal from the time domain to t

Arrys, Write a program that allows user to enter number of elements in an a...

Write a program that allows user to enter number of elements in an array. The program then allows user to enter the elements. Write a function called max that returns the position

Constructor , How can I handle a constructor that fails?

How can I handle a constructor that fails?

Built a web crawler , To develop a web crawler such that when given a base ...

To develop a web crawler such that when given a base URL, it will traverse the entire web tree and then build an index of keywords and what URL link they appear on.   The web crawl

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