Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Please keep hashtags the same here is the skeleton code .data # allocating space for both strings str: .space 128 res: .space 128 .globl main

Please keep hashtags the same here is the skeleton code

.data
# allocating space for both strings
str: .space 128
res: .space 128
.globl main
.text
main:
# load address of strings
la s0, str
la s1, res
# we do not need LA pseudoinstructions from now on
# read a string into str
addi a0, s0, 0
addi a1, x0, 120
addi a7, x0, 8
ecall
# str's addres is already in s0
# copy res's address to a1
addi a1, s1, 0
# TODO
# remove spaces in str
# print res
# your code assumes str's address is in a0 and res's address is in a1
exit: addi a7, x0, 10
ecall

image text in transcribed

In this lab, we write a program in RISC-V assembly language that removes spaces in a string. Recall that the strings in this course are ASd strings. Each character is stored in a byte and a null character (NUL) indicates the end. Skeleton code is provided in The program performs the following tasks. 1. Read a line from the console and store the string in . This step is already done in the code provided. 2. Remove the spaces (ASCII value 32) in and save the result in Think aobut the strategy/algorithm first. One method is provided in pseudocode at the bottom of this page. Constraints in your code: Only use argument registers (like a0 and a1) and temporary registers (like and t1). 3. Print . This is done by a system call. Note that the address of is saved in a register before the Step 2 code. Input The user can type up to 80 characters before pressing the Enter key. The ASCll values of the characters, other than the Enter key, is between 32 (space) and 126, inclusive. Testing The following are some examples of expected output of the program. The lines that have spaces are input. Please test your code with strings of different lengths. abc abc

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

SQL Instant Reference

Authors: Gruber, Martin Gruber

2nd Edition

0782125395, 9780782125399

More Books

Students also viewed these Databases questions

Question

1 What demand is and what affects it.

Answered: 1 week ago