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Week 08 Notes for CST8214
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- Ian! D. Allen - idallen@idallen.ca - www.idallen.com

Lab answers will be posted after the due date.  Not all questions will
be marked.  Check all your answers against the posted set.

Class Notes http://teaching.idallen.com/cst8214/07f/
  binary_math.txt     Binary Mathematics, unsigned, two's complement, etc.
  overflow.txt     Calculating the OVERFLOW flag in binary arithmetic
  bit_operations.txt     Bitwise Operations, bit masking - AND, OR, NOT
  test2topics.txt     Test 2 (Nov 9) Review Topics and Questions
  text_errata.txt     Errors in The Essentials of Computer Organization and Architecture

Note that overflow is different for integers and floating-point numbers.
Integer overflow sets a flag in the CPU.  Floating-point overflow does
not use that CPU flag.

Error: Chapter 4 slide 14: 4Mx16 is 4M x 2bytes = 8 megabytes, not 4.

Pay careful attention to these student errors in Boolean logic:

    (xy)' IS NOT EQUAL TO x'y'      *** DON'T MAKE THIS ERROR
   (x+y)' IS NOT EQUAL TO x'+y'     *** DON'T MAKE THIS ERROR

These are correct (deMorgan):

    (xy)' IS EQUAL TO x'+y'  (deMorgan)
   (x+y)' IS EQUAL TO x'y'   (deMorgan)