Description
You are given a string of essentially random characters, and your task is to replace all non-numeric characters with space characters.
1 Instructions
The following files have been provided for you:
- timedlab3.asm
You will be editing timedlab3.asm to replace instances of non-numeric characters in a string with space characters. The space character (i.e. ‘ ‘) corresponds to decimal value 32 in ASCII. All other ASCII characters in the provided string, outside of the range ‘0’…’9′ should be replaced with ‘ ‘.
Remember: Strings are zero-terminated arrays of characters!
An ASCII table has been provided for your reference at the end of this document: The space character is highlighted with red and the numeric digits are highlighted with yellow .
We have defined the following assembly language labels for you:
- STR ADDR: The address of the beginning of the string Consider the following examples:
| Before | After |
| “a3hf5k32ss” | ” 3 5 32 “ |
| “A3HF5K32SS” | ” 3 5 32 “ |
| “aBcD3fGhIj” | ” 3 “ |
Note: Replace characters in the existing string. Do not copy it!
Hint: You may create your own labels with .fills!
