Assignment 1 assembly code in RISC-V

EE3450 
Computer Architecture
Program Assignment 1
Assignment Description
• For this assignment, you have to write an
assembly code in RISC-V to implement
QuickSort.
• After the code is completed, you will learn
how to use a toolchain to compile codes, and
how to use an ISA simulator to debug.
Environment Setup
• In the beginning, we have to setup the
environment with RISC-V toolchains and ISA
simulator (spike).
• TA has provided an VM image with tools
listed above.
• Please refer to “environment_setup.pptx” for
detailed descriptions.
RISC-V tools and ISA simulator
• We use RISC-V tools (including compiler, linker,
etc.) to build the project and generate
executable binaries.
• The ISA simulator runs the compiled binaries.
We can use it to check the execution result and
debug.
• Please refer to “run_tutorial.pptx” for detailed
descriptions.
Program Assignment 1: QuickSort
• QuickSort is a widely-used sorting algorithm
with a time complexity of 𝑂(𝑛 log2 𝑛).
• Please understand QuickSort first.
• Wikipedia – QuickSort
• The example code in C is provided in the
template.
Program Assignment 1: QuickSort
• In this assignment, you have to finish your
code in “*.S” file for the following 3 parts:
• Part1: Swap
• Part2: Partition
• Part3: QuickSort
• Template code with print helper function are
provided by TA. Please do not modify the
print function part in the code.
Part 1 : Swap
• Finish the code “ee3450_pa1/part1/main.S”.
• For a given array, the program changes the
value of two elements in the array.
• Run and check the correctness of your
program.
Part 2 : Partition
• Finish the code “ee3450_pa1/part2/main.S”.
• In this part, you have to implement the partition
function in the QuickSort algorithm. We select
the last element of an array as pivot.
• Run and check the correctness of your program.
• Hint: You can reuse your code in part 1.
Part 3 : QuickSort
• Finish the code “ee3450_pa1/part3/main.S”.
• In this part, you have to implement the
QuickSort algorithm.
• Run and check the correctness of your program.
• Hint: You can reuse your code in part 1 & 2.
Delivery
• Rename your main.S in three parts as
• PA1_<student_ID>_part1.S
• PA1_<student_ID>_part2.S
• PA1_<student_ID>_part3.S
For example: PA1_109061585_part1.S
• Send your code through eeclass
Note
• Supported input value range for print function: [0, 99]
• Hint: Properly comment your code could make
debugging easier.
• Hint: You can refer to the provided C code first.