Exam 1-Notes

# Exam 1-Notes - Some notations you may need(taken from...

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Notes page: Some notations you may need (taken from lectures and book; no explanation is provided): Floating Point Number: (-1) S ·1. fraction ·2 exponent±127 (1 exponent 254) Special Cases: Exponent = 0, fraction ± 0: (-1) S ·0. fraction ·2 -126 Exponent = 0, fraction = 0: +0 or -0 Exponent = 255, fraction = 0: + or - Exponent = 255, fraction ± 0: NAN (Not A Number) n 2 n 2 n -4 2 -4 0.0625 1 / 16 -3 2 -3 0.125 1 / 8 -2 2 -2 0.25 1 / 4 -1 2 -1 0.5 1 / 2 0 2 0 1 1 2 1 2 2 2 2 4 3 2 3 8 4 2 4 16 5 2 5 32 6 2 6 64 7 2 7 128 8 2 8 256 9 2 9 512 10 2 10 1 024 11 2 11 2 048 12 2 12 4 096 13 2 13 8 192 14 2 14 16 384 15 2 15 32 768 16 2 16 65 536 ASCII Table (First 128 Characters) 00 nul 10 dle 20 sp 30 0 40 @ 50 P 60 ` 70 p 01 soh 11 dc1 21 ! 31 1 41 A 51 Q 61 a 71
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