Edit this existing program to make and create 2 programs:a. When a user presses a lower case an upper case shows.b. when a user presses either upper case or lower case the program will display the opposite which means that the program detects whether a Upper or Lower case was pressed. ```plaintext; Author: DAVID PELED; displays upper case to lower case Enter to exit.model small.386 ; to support 32 bits.stack 100h ; Stack with 100h locations = 256(10).data ; to declare variables; variables to be called here.codemain procL1: mov ah, 1 ; enter key int 21h cmp al, 13 ; if CR then end JZ short L2 mov dl, al ; save the key entered to dl ADD DL, 20h ; add 20h = 32(10) mov ah, 6 ; displays the content of dl int 21h jmp L1 L2: mov ax,4C00h ; return to DOS ends to program int 21hmain endpend main```### ExplanationThis assembly language program is intended to convert uppercase letters to lowercase letters until the "Enter" key (carriage return) is pressed, subsequently exiting the program. Below is an explanation of the different sections and commands used in the code:1. **Header Information:** - **Author:** DAVID PELED - The program is designed to convert uppercase letters to lowercase and exits when "Enter" is pressed.2. **Directives and Setup:** - `.model small`: Specifies the memory model. - `.386`: Indicates the support for 32-bit operations. - `.stack 100h`: Sets up a stack with 256 bytes.3. **Data Section:** - `.data`: Placeholder for variables (not used in this script).4. **Code Section:** - **Procedure `main`:** The main part of the program execution begins here.5. **Primary Loop (`L1`):** - `mov ah, 1`: Prepares for input. - `int 21h`: Calls DOS interrupt to read a character. - `cmp al, 13`: Compares the input character with the ASCII code for "Enter". - `JZ short L2`: Jumps to label `L2` if Enter is pressed. - `mov dl, al`: Moves the input into `dl` for processing. - `ADD DL, 20h`: Adds 32 to

Solution:-- 1)The given program has required for the solution which is to be provided as the assembly program in the solution. 2)The assembly program is to be provided for the two subquestions given in question portal respectively. 3)The subquestions are as follows:-- i)Program to print upper case if lower case is pressed. ii)Program to print lower case if upper case is pressed. 4)Note:-- I have provided the required both of the assembly programs in the following below step. *Required Programs:-- ----------------------------------------------------------------------------------------------------------------- Program 1):-Program to print upper case if lower case is pressed:- .MODEL SMALL .STACK 100H ,DATA PROMPT_1 DB PROMPT_2 DB .CODE MAIN PROC MOV AX , @DATA MOV DS , AX LEA DX , PROMPT_1 MOV AH , 9 INT 21H MOV AH , 1 INT 21H MOV BL , AL LEA DX , PROMPT_2 MOV AH , 9 INT 21H AND BL , 1DFH MOV AH , 2 MOV DL , BL INT 21H MOV AH , 4CH INT 21H MAIN ENDP END MAIN -------------------------------------------------------End of Program 1------------------------------------------------------- -------------------------------------------------------------------------------------------------------------------------- Program 2):-Program to print lower case if upper case is pressed .MODEL SMALL .STACK 100H .DATA PROMPT_1 DB PROMPT_2 DB .CODE MAIN PROC MOV AX , @DATA MOV DS , AX LEA DX , PROMPT_1 MOV AH, 9 INT 21H MOV AH , 1 INT 21H MOV BL , AL LEA DX , PROMPT_2 MOV AH ,9 INT 21H OR BL , 20H MOV AH , 2 MOV DL , BL INT 21H MOV AH , 4CH INT 21H MAIN ENDP END MAIN ------------------------------------------------------End of Program 2-------------------------------------------------------