Computer Organization and Design: The Hardware/Software Interface

Info icon This preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
1 University of California, Berkeley College of Engineering Computer Science Division EECS Spring 1999 John Kubiatowicz Prerequisite Quiz February 1, 1999 CS152 Computer Architecture and Engineering This prerequisite quiz will be used in determining class admissions. The use of calculators or notes is not allowed during this quiz. Good Luck! Your Name: SID Number: Discussion Section: 1 2 3 4 Total
Image of page 1

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

View Full Document Right Arrow Icon
2 [ This page left for π ] 3.141592653589793238462643383279502884197169399375105820974944
Image of page 2
3 1) Assume that we have a 16 bit system that uses signed, two’s-complement integers. Perform the following conversions: -8 10 to base 2: D458 16 to base 2: 24 10 to base 16: (1111110110101100) 2 to base 16: FC34 16 to base 10:
Image of page 3

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

View Full Document Right Arrow Icon
4 2) Suppose that we start with the following C program for factorial: int fact (int n) { if ( n < 1 ) { return 1; } else { return n fact (n-1); } } Here is a translation of the program above into MIPS assembly language. fact: slt $s0,$a0,1 bne $s0,$zero,L1 add $v0,$zero,1 jr $ra L1: sub $sp,$sp,2 sw $a0,0($sp) sub $a0,$a0,1 jal fact lw $ra,4($sp) add $sp,$sp,2 mult $v0,$a0,$v0 jr $ra a) There are 6 mistakes in this translation. Fix them in the above listing.
Image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    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.

    Student Picture

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

  • Left Quote Icon

    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.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    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.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern