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Simple list implemented in MIPS Assembly

This is the implementation of a simple list for MIPS processor, in assembly. What is more, the capability of providing the factorial for every entry of the list is also offered.

Table of Contents

Description

The list utilizes a space of exactly 600 bytes in the memory of MIPS, and it can store at most 100 nodes. Each node consists of a 16-bit ID which gets values from 0 to (216-1) in the decimal system, and a 32-bit word which gets values from (-231+1) to (231-1) in the decimal system again.

Note
The ID of every node has to be unique, otherwise some operations may not work properly.

Compilation and execution instructions

The easiest way of compiling and running the source code is to utilize a simulator such as QTSpim.

Usage

When the program is executed, it asks for the initial size of the list, and an integer number from 1 to 100 has to be given. Afterwards, all nodes have to be initialized from the user with an ID and a word before the list is ready to be used. Notice that setting out-of-bounds values for an ID will not be accepted by the program.

Warning
Variables ID and word are initialized by providing their values as decimal integers. Setting out-of-bounds values for a word may cause overflow issues.

After the list has been initialized successfully, a multiple choice menu appears in the console:

  • The 1st option allows for a new node to be added at the end of the list (after being initialized by the user).
  • The 2nd option allows for the last node of the list to be deleted.
  • The 3rd option allows to print the contents of a node (position in the list, ID and word, all converted to decimal integers).
  • The 4th option allows to print the current size of the list.
  • The 5th option allows to print the contents of the node with the minimum word.
  • The 6th option allows to print the factorial of a node's integer word (as a decimal integer). However, if the factorial is greater than (231-1), overflow issues may occur and the printed number may be incorrect.

    Note
    When the word of a node is zero or negative, its factorial is returned to be equal with 1.

  • The 7th option just terminates the program.

Status

Under maintenance.

License

Distributed under the GPL-3.0 License. See LICENSE for more information.

Authors

Georgios Apostolakis