Outline:

1. Detecting overflow in signed addition
2. Representing fractions in binary
3. IEEE-754 Floating-point standard
4. Why you should care
5. Review

Reminder: Exam Day on Friday

You will see these Quiz Learning Objectives for the first time:

• NR 3: 2’s complement
• NR 4: floating point
• OP 5: overflow

There will also be a packet of learning objectives you’ve seen before, covering everything from Unit 1 except the three listed above.

To do after class:

1. Review
   • memory example: memblock.c
     • byte ordering: little/big endian
     • pointers and addresses
     • arrays
     • C strings
     • pointer arithmetic
   • working with addresses
     • * versus &
     • char ** or int *** or other too-many-* examples
     • debugging question from Quiz 3
   • number representations
     • 2’s complement
     • unsigned/signed conversions
     • size conversions
     • overflow
   • bitwise/shift operations and logical operations

Reading assignment (to be completed by the next class):

Relevant to our discussion today:

• DiS Sec 4.8: Real Numbers in Binary

For next time:

• Nothing new, just review what we’ve done so far!