Texas Instruments TMS320C3x User Manual
Page 116
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Floating-Point Formats
5-11
Data Formats and Floating-Point Operation
Example 5–2. Negative Number
0 1 C 0 0 0 0 0
Hex value
0000 0001 1100 0000 0000 0000 0000 0000
Binary value
Exponent =
0000 0001
2
= 1
Sign
=
1
Fraction =
.10000
2
Value
=
10.1
2
×
2
1
= 101
2
. = –3
Fraction
Implied
Sign
Example 5–3. Fractional Number
F B 4 0 0 0 0 0
Hex value
1111 1011 0100 0000 0000 0000 0000 0000
Binary value
Exponent =
1111 1011
2
= –5
Sign
=
0
Fraction =
.10000
2
Value
=
01.1
2
×
2
–5
= .000011
2
= 3/64
Fraction
Implied
Sign
2
–5
2
–6
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