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PriOut1_Practice

PriOut1_Practice - ECE 362 Outcome 1 Assessment-1Practice...

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ECE 362 Outcome 1 Assessment - 1 - Practice Exam / Solution ______________________________________________________________________________ © 2009 by D. G. Meyer / Purdue University – may not be copied or reproduced, in any form or by any means. PART 1: Multiple Choice – Select the single most appropriate response for each question. Note that none of the above MAY be a VALID ANSWER. Place answers for this part on the supplied BUBBLE SHEET only – nothing written here will be graded. Please REATTACH your completed bubble sheet to this document and TURN BOTH IN TOGETHER – failure to do so will result in a score of ZERO. Do not spend more than 60 minutes on this portion of the exam. (1) Execution of the instruction LEAY 1,X+ causes: (A) nothing to happen (B) (X) (X)+1 (C) (Y) (X)+1 (D) (A) (X) (E) none of the above (2) The largest possible 8-bit binary fraction, expressed as a base 10 number, is: (A) 0.1111 1111 (B) 0.9999 9999 (C) 0.9960 9375 (D) 0.5000 0000 (E) none of the above (3) When multiplying integers (using any of the multiply instructions), the carry flag: (4) If (D)=$8000 and (X)=$FFFF, the quotient in (X) after executing IDIVS is: (A) $0000 (B) $7FFF (C) $8000 (D) $FFFF (E) none of the above (5) If (D)=$8000 and (X)=$0000, the quotient in (X) after executing IDIVS is: (A) $0000 (B) $7FFF (C) $8000 (D) $FFFF (E) none of the above
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ECE 362 Outcome 1 Assessment - 2 - Practice Exam / Solution ______________________________________________________________________________ © 2009 by D. G. Meyer / Purdue University – may not be copied or reproduced, in any form or by any means. (6) The result produced by FDIV when dividing $4000 by $2000 is: (7) If a 16-bit item is pushed onto the HC(S)12 stack, the SP register points to:
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  • Spring '08
  • Staff
  • Central processing unit, MOS Technology 6502, Purdue University, Addressing mode, memory location, D. G. Meyer

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