{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

quiz3_sol

# quiz3_sol - CS 061 Computer Organization Quiz 3 Tuesday...

This preview shows pages 1–2. Sign up to view the full content.

CS 061 – Computer Organization Winter - 2012 Quiz 3 – Tuesday 10/18 solution 1. Given that the ASCII codes for 'A' through 'Z' are x41 through x5A; and the codes for 'a' through 'z' are x61 through x7A: which of the following operations would force the character stored in R0 to lower case - i.e. convert a character stored in R0 from upper case into lower case, or preserve the case if it was lower case already.(so ‘A’ would become ‘a’, and ‘a’ would remain unchanged). Note: the LC-3 stores ASCII characters in the lower ("right-hand") byte of a 16-bit word, with the upper byte set to zero. a. and R0 with x0020 b. or R0 with x0020 c. xor R0 with x0020 d. and R0 with x005F e. or R0 with x005F f. and R0 with x004F 2. Simplify the Boolean expression: a.b’.c’.d + a.b’.c.d + a.b.c’.d + a.b.c.d’ + a.b.c.d a. a.b.c + a.b.d + b.c.d b. a.c + a.b.d c. a.c + b.d + b.c d. a.d + a.b.c e. can’t be simplified 3. What is the simplified logic expression for the truth table shown here, in the form Out = f(A, B, C)?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern