Programming Exercise 2 :- COPY A STRING IN REVERSE ORDER Write a program with a loop and indirect addressing that copies a string from source to target, reversing the character order in the process. You MUST use the exact data block, memory allocation and initialization, as shown in the followings for testing - for showing that your code would not over-write the original data at the head(4 '$'s) middle(4 '%'s) and tail(4 '^'s): BYTE 4 DUP('S') source BYTE "This is the source string",0 BYTE 4 DUP (*%*) target BYTE SIZEOF source DUP ('#') BYTE 4 DUP (*^*) Hint: Should Not copy the null character, O, at the end of the source string to the front of the target string. And, finish writing the target string by writing the null character, O, to the last byte - replacing the last '#' there. In the output of the program, both the source and target (reversed) strings should be shown, by calling the Irvine peripheral procedure(s). Use the following test code to display the Whole Data Bank: ; display the 4 "S" and source string mov edx, OFFSET source-4 call WriteString mov edx, OFFSET target-4 call WriteString mov edx, OFFSET target+SIZEOF target ; display the 4 "A call WriteString ; display the 4 "%" and target string IMPORTANT: for this exercise, NOT allowable to use any one of these directives: .IF, .ELSE, .ELSEIF, .WHILE, .REPEAT, etc
assmbly language please. Proof of your solutions and test results: To show the operation of your
COPY A STRING IN REVERSE ORDER
Write a program with a loop and indirect addressing that copies a string from source to target, reversing the character order in the process. You MUST use the exact data block, memory allocation and initialization, as shown in the followings for testing - for showing that your code would not over-write the original data at the head(4 '$'s) middle(4 '%'s) and tail(4 '^'s):
BYTE 4 DUP('$')
source BYTE "This is the source string",0
BYTE 4 DUP('%')
target BYTE SIZEOF source DUP('#')
BYTE 4 DUP('^')
Hint: Should Not copy the null character, 0, at the end of the source string to the front of the target string. And, finish writing the target string by writing the null character, 0, to the last byte - replacing the last '#' there.
In the output of the program, both the source and target(reversed) strings should be shown, by calling the Irvine peripheral procedure(s). Use the following test code to display the Whole Data Bank:
mov edx, OFFSET source-4 ; display the 4 "$" and source string
call WriteString
mov edx, OFFSET target-4 ; display the 4 "%" and target string
call WriteString
mov edx, OFFSET target+SIZEOF target ; display the 4 "^"
call WriteString
IMPORTANT: for this exercise, NOT allowable to use any one of these directives: .IF, .ELSE, .ELSEIF, .WHILE, .REPEAT, etc
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