Computer Organization and Design: The Hardware/Software Interface

Info icon This preview shows pages 1–3. 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 Fall 2001 John Kubiatowicz Homework Quiz (HW #4) October 17 th , 2001 CS152 Computer Architecture and Engineering This quiz covers one of the problems from homework #4. Good Luck! Your Name: SID Number: Discussion Section: 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 Figure 1: A multicycle data path Figure 1 shows the multicycle datapath from the book. In your homework, you implemented the bcp instruction, which copied a block of words from one location in memory to another. In this problem, we will implement something simpler, namely the block scale ( bscale) instruction: bscale $t1,$t2,$t3 {mem[t1]*$t3 mem[t1], mem[t1+4]*$t3 mem[t1+4], … mem[t1+(t2-1)*4]*$t3 mem[t1+(t2-1)*4]} This instruction takes the value in register $t1, and uses it to scale every word in a block of words of memory of size $t2 words, starting at the address in $t3 . The coding of this instruction is as follows: $t1 is in the RT field, $t2 is in the RS field, $t3 is the sign-extended 16-bit constant from Inst[15:0].
Image of page 2
Image of page 3
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