VSDSquadron_RISC-V_MiniReasearchInternship

This Github-Repo is to track my progress regarding RISC-V based hands-on project research internship

TASK-1

Install all the necessary files regarding internship such as riscv_workshop.vdi and visualC++ and oracle virtual-box(which is free and open source virtualization software).Download and do the installation steps and setup virtual machine(its an physical computer but inside a virtual environment)

STEP:1

Open the VDI File using virtual box in windows and open terminal

STEP:2

Install LEAFPAD (EDITOR)

          sudo apt install LEAFPAD

run the cd command to make sure we are in home directory

          cd

To open the file in editor

         leafpad filename.c &

Write a C program to calculate the sum from 1 to n in the leafpad editor

STEP:3

RUN AND COMPLILE THE CODE USING THE FOLLOWING COMMANDS and check the output

         gcc.filename.C

         ./a.out

STEP:4

COMPILE THE SAME PROGRAM WITH RISC-V SIMULATOR

        riscv64-unknown-elf-gcc -O1 -mabi=lp64 -march=rv64i -o filename.o filename.c

To display the CODE IN THE TERMINAL

        cat filename.C

TO generate the file

        ls -ltr filename.o

STEP:5

ASSEMBLY CODE FOR THE PROGRAM

        riscv64-unknown-elf-objdump -d filename.o 

The above code gives a bunch of assembly code so to simplify use the below code.

       riscv64-unknown-elf-objdump -d filename.o | less

(as the above code gives a huge section but we need to Check the values in main and find them out by giving /main and n)

STEP:6

DISPLAY THE ASSEMBLY CODE

STEP:7

OBSERVE THE SAME BY REPLACING THE COMMAND WITH Ofast instead of O1 and display the assembly code

replace O1 with Ofast in the command

   riscv64-unknown-elf-gcc -Ofast -mabi=lp64 -march=rv64i -o filename.o filename.c