Quiz 4 F10 soln - B Accumulator Mem Loc $43 Before...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
ECE265 Quiz 4 NAME: ______________________________________________ Fall 2010 THIS IS AN OPEN BOOK/NOTES QUIZ (10 points) Consider the Instructions Below Fill in the boxes as to the contents in the A and B accumulators after the execution of each instruction. The contents in the accumulators after each instruction are 2 points each. 0000 0000 Xxxx xxxx 0000 1111 A Accumulator B Accumulator Mem Loc $10 Before Execution 0000 0000 CC Reg SXHI NZVC LDAA #$80 $80 xxxx $0F A Accumulator B Accumulator Mem Loc $10 After Execution 0000 1 0 0 0 CC Reg SXHI NZVC Show the contents of these registers/memory after execution of the instruction X means the value is unknown 3) What addressing mode is used? 0000 0011 xxxx xxxx 1111 0101 A Accumulator B Accumulator
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: B Accumulator Mem Loc $43 Before Execution 0000 0000 CC Reg SXHI NZVC STAB $43 0000 0011 $F 5 $F 5 A Accumulator B Accumulator Mem Loc $43 After Execution 0000 1 0 0 0 CC Reg SXHI NZVC Show the contents of these registers/memory after execution of the instruction X means the value is unknown 2) What addressing mode is used? 0000 0011 0001 0000 1111 0101 A Accumulator B Accumulator Mem Loc $11 Before Execution 0000 0000 CC Reg SXHI NZVC ADCB $11 $0 3 $F 5 0000 0101 A Accumulator B Accumulator Mem Loc $43 After Execution 0000 0 0 1 1 CC Reg SXHI NZVC Show the contents of these registers/memory after execution of the instruction X means the value is unknown 3) What addressing mode is used?...
View Full 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