This assignment has to written by assembly language

Our next programming assignment has to do with ROT13 encoding. ROT13 is an example of a simple substitution cipher called a Caesar cipher (because it was supposedly used by Julius Caesar 2000 years ago). This site will tell you more about ROT13 is simply a Caesar cipher with a rotation of 13. Here's a typical definition: rot13 /rot ther'teen/ .,v./ [Usenet: from rotate alphabet 13 places'] The simple Caesar-cypher encryption that replaces each English letter with the one 13 places forward or back along the alphabet, so that "The butler did it!" becomes "Gur ohgyre qvq vg!" Most Usenet news reading and posting programs include a rot13 feature. It is used to enclose the text in a sealed wrapper that the reader must choose to open -- e.g., for posting things that might offend some readers, or spoilers. A major advantage of rot13 over rot(N) for other N is that it is self-inverse, so the same code can be used for encoding and decoding In other words, the advantage of using ROT 13 rather than ROTn where n13 is that since there are 26 letters in the alphabet, n = 13 is the only value that can use the same algorithm for encoding and decoding. Here is a page where you can try out ROT13 Now you understand what ROT13 is, and you have a way to get correct examples of ROT13 encoding. What should your code do? Our next programming assignment has to do with ROT13 encoding. ROT13 is an example of a simple substitution cipher called a Caesar cipher (because it was supposedly used by Julius Caesar 2000 years ago). This site will tell you more about ROT13 is simply a Caesar cipher with a rotation of 13. Here's a typical definition: rot13 /rot ther'teen/ .,v./ [Usenet: from rotate alphabet 13 places'] The simple Caesar-cypher encryption that replaces each English letter with the one 13 places forward or back along the alphabet, so that "The butler did it!" becomes "Gur ohgyre qvq vg!" Most Usenet news reading and posting programs include a rot13 feature. It is used to enclose the text in a sealed wrapper that the reader must choose to open -- e.g., for posting things that might offend some readers, or spoilers. A major advantage of rot13 over rot(N) for other N is that it is self-inverse, so the same code can be used for encoding and decoding In other words, the advantage of using ROT 13 rather than ROTn where n13 is that since there are 26 letters in the alphabet, n = 13 is the only value that can use the same algorithm for encoding and decoding. Here is a page where you can try out ROT13 Now you understand what ROT13 is, and you have a way to get correct examples of ROT13 encoding. What should your code do