https://github.com/thermionik/ece306-lc3

LC3 (Little Computer 3) assembly programs that I created for "Introduction to Computing" with Dr. Yale N. Patt
https://github.com/thermionik/ece306-lc3

assembly-language-learning assembly-language-programs ece306 lc3 lc3-assembler lc3-assembly

Last synced: 27 days ago
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LC3 (Little Computer 3) assembly programs that I created for "Introduction to Computing" with Dr. Yale N. Patt

• Host: GitHub
• URL: https://github.com/thermionik/ece306-lc3
• Owner: thermionik
• License: gpl-3.0
• Created: 2023-12-12T17:18:21.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2025-01-04T16:12:31.000Z (about 1 month ago)
• Last Synced: 2025-01-04T17:22:06.789Z (about 1 month ago)
• Topics: assembly-language-learning, assembly-language-programs, ece306, lc3, lc3-assembler, lc3-assembly
• Language: Assembly
• Homepage:
• Size: 49.8 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# ECE306-LC3

LC3 (Little Computer 3) assembly programs that I created for "Introduction to Computing" with Dr. Yale N. Patt 

Not all of these programs are perfect solutions! LAB-4: NIM is the main project in this epository. It showcases how a fully fledged computer game can be made with only fifteen assembly instructions.

# Requirements:

You must use the LC3 simulator found here to run these programs: https://github.com/chiragsakhuja/lc3tools

## LAB 1

##### comparison.bin

a machine code program that compares two numbers, X and Y. Assumes X is stored in memory location x3100 and that Y is stored in memory location x3101. The program compares X and Y, and if X > Y, store a -1 at memory location x3102; if X = Y, store a 0 at memory location x3102; and, if X < Y, store a 1 at memory location x3102. 

##### bsr.bin

a machine code program that finds the first “1” in a bit vector from the least significant bit to the most significant bit. Assumes that a bit vector B is stored in memory location x3100. Stores the index of the first “1” in memory location x3101.

##### See LAB1_TESTS directory for more information about how the programs performed for various tests. 

## LAB 2

##### sort.asm

a program in LC-3 assembly language to sort an array NUMBERS of 2’s complement integers. Assumes that the base address of NUMBERS is stored in memory location x3200 and the number of elements n in the array is stored in memory location x3201. Each memory location contains a single 2's complement integer. That is, each memory location contains a single element of the array. Sorts the array of 2's complement integers in descending order (largest-to-smallest) and stores the result back in memory starting at the base address of the array.

##### See LAB2_TESTS directory for more information about how the program performed for various tests. 

## LAB 3

##### merge.asm

a program in LC-3 assembly language that takes as input two linked lists stored in memory -- each list contains employees names -- and combines the lists into one sorted list of names. A pointer to the first element of this new list will be stored in location x4002.

##### See LAB3_TESTS directory for more information about how the program performed for various tests. 

## LAB 4

##### nim.asm

the old game of nim in LC-3 assembly language.

## LAB 5

##### polling.asm

a demonstration of polling I/O.

##### interrupt.asm

a demonstration of interrupt driven I/O.

##### See LAB5_TESTS directory for more information about how the programs performed for various tests.