Write an assembly program with the following functionality. The program generates two random numbers in the range $11-99$ and computes their sum and also asks the user to compute the sum. The user got $8$ seconds to type in the answer. If no user response is obtained within $8$ seconds, the program reports timeout and starts over. Otherwise, the program verifies user's answer, prints the corresponding report and starts over. This way the program can be used for training users to add integers $($without using calculators$).$

Here is a sample dialog with a user, where all numbers to the right of the $\text{'}=\text{'}$ sign are user input:

$29+42=71$ Correct! $32+18=42$ Incorrect! Right answer is $5045+72=($here timeout occurred$)$ Timeout. Answer is $11711+28=39$ Correct!

Implement timeouts with RTCC$\_$CC$0$ channel and detect keyboard key presses by using USART$1\_$RX hardware interrupt and its processing in NVIC. For this you may modify ReadChar and ReadInt routines from the Terminal.lib library. Your program must have no polling loops which implies that RTCC interrupts must be also processed in NVIC and CPU must be put in sleep mode with wfi instruction while waiting for the user's input or timeout.$$

Hint: use software random number generator that generates next random number in the range $[11-99]$ according to the recursive formula

rand $=((($rand $*1103515145)+12846)\%89)+11$

Before generating the random numbers initialize variable rand with $21.$ Recursive implementation of the random number generator is not required.

Write it in this format:

INCLUDE EFR$32$BG$22.$inc ; CPU register definitions

INCLUDE terminal.inc ; terminal function definitions

EXPORT main

IMPORT LETIMER$\_$setup ; import names from other code files

IMPORT GPIO$\_$setup

;$-------------------------------------$ ; non$-$initialized DATA segment in RAM

AREA RAM, DATA, NOINIT, READWRITE, ALIGN$=3$

;myWord SPACE $4$ ; $32-$bit variable $($MUST BE ALIGHED!$)$

;myHalf SPACE $2$ ; $16-$bit variable $($MUST BE ALIGHED!$)$

;myByte SPACE $1$ ; $8-$bit variable $($NO alighment required$)$

;$-------------------------------------$ ; CODE segment in flash $($ROM$)$

AREA $|.$text$|,$ CODE, READONLY

main PROC ; main user code

bl Terminal$\_$setup ; setup TeraTerm communication

; bl GPIO$\_$setup ; configure port pins

; bl LETIMER$\_$setup ; start $1-$sec timer for periodic events

; your code starts here

loop ; periodic task starts here

b loop ; repeat periodic task

ENDP

;$-------------------------------------$

;prompt DCB "Enter a number: $",0$ ; allocate constant strings here

ALIGN

;constW DCD $15$ ; initialized $32-$bit constant

;constH DCW $23$ ; initialized $16-$bit constant

;constB DCB $17$ ; initialized $8-$bit constant

ALIGN

END