Create a RISC V program for each of the following exercises.

Exercise bex3a: Ask the user for his name then greet him as per the following dialog What is your name? John Hello John! Save your solution as a file named bex3a asm for possible future use. Exercise bex3b: Create a program that i) asks the user to enter an integer value, ii) asks the user to enter a memory address, and then it iii) stores the entered integer value in the memory at the entered address. The above process continues in a loop until cancelled. Save your solution as a file named bex3b.asm for possible future use. Exercise bex3c: A simple telephone directory can be constructed by DC assembler commands as follows: 8 dir: DC "John" DC "11111" DC "Nick" DC "22222" DC "Sara" DC "11111" DC "Nick" DC 133333" DD 0 Create a program that i) asks the user to enter a phone or a name, ii) searches the directory and ili) reports the found entries. The above process continues in a loop until cancelled The dialog could be as follows: Enter a phone or a name to search for: John John 11111 Enter a phone or a name to search for:11111 John 11111 Sara 11111 Enter a phone or a name to search for:Nick Nick 22222 Nick 33333 Enter a phone or a name to search for: Cancelled Save your solution as a file named bex3c.asm for possible future use