Computer Architectures project

This repository contains the implementation of three exercises, for the lab project of Computer Architectures class at UNIFI.

Usage

In order to run the exercises, download a MIPS simulator, like MARS or QtSpim and simply load them.

Exercises

1. Strings analysis

Translates a given alphanumerical string into a sequence of '1', '2', '9' and '?' characters, by applying the following mapping:

• The substring "uno" becomes '1'
• The substring "due" becomes '2'
• The substring "nove" becomes '9'
• Everything else becomes '?'

For example, if the input string is "uno due ciao 33 tree tre uno Uno di eci" the output string will be "1 2 ? ? ? ? 1 ? ? ?".

2. Nested and recursive procedures

Let G and F be two procedures like the following:

Procedure G(n)
  begin
    b := 0
    for k := 0, 1, 2, ... , n do 
    begin
      b := b2 + u 
    end
    return b 
  end

Procedure F(n) 
  begin
    if n = 0 then return 1
    else return 2 * F(n − 1) + n 
  end

Let n be a natural number between 1 and 8. The software should output:

• The value returned by G(n)
• A trace of nested procedure calls and their intermediate results, for both F and G

3. Matrix operations

The software should support 5 different commands:

• Matrix insertion: Give the user the ability to insert a square matrix with dimensions between 1 and 4
• Matrix sum: Sum two identically-sized matrices
• Matrix subtraction: Subtract a matrix from another one with the same dimensions
• Matrix product: Apply row by column product of two compatible matrices
• Exit: Print an exit message and close the program

Assignment & report

You can have a look at both the project assignment and the written report, but beware that they have been written in the Italian language.