In a design document, outline the design and implementation strategy for an assembly proce$-$

dure called strpbrk$,$ identical in functionality and behaviour as the standard C library string

function strpbrk$.$ You can use man strpbrk to find the full documentation of the C func$-$

tion and its behaviour. Your task is to implement an assembly version of this function. The

function takes as its two parameters $(1)$ the address of a read$-$only $($const char $*),$ null$-$

terminated string s$,$ and $(2)$ the address of a read$-$only $($const char $*),$ null$-$terminated

string accept $.$ The function locates the first occurrence in the string s of any of the char$-$

acters in the string accept. The function returns a pointer to the first occurrence of such

character, or a NULL pointer if none are found.

Write, and test using QEMU, the RISC$-$V assembly procedure strpbrk$.$ Also, write a main

program to test your procedure. The program should prompt the user to input two strings

$($you can assume that the strings will be at most $40$ characters each, not including the zero

byte delimiter$),$ call the function, display a message indicating whether an occurrence has

been found, and finally terminate. Your code must use the $$standard$$ conventions

covered in class for passing parameters, returning results, and using the stack.