mc68ec040v Freescale Semiconductor, Inc, mc68ec040v Datasheet - Page 253
mc68ec040v
Manufacturer Part Number
mc68ec040v
Description
M68040 User Manual
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68EC040V.pdf
(442 pages)
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MOTOROLA
Sign (s)
Biased Exponent (e)
Fraction (f)
Total
Positive Fraction
Negative Fraction
Bias of Biased Exponent
Range of Biased Exponent
Range of Fraction
Fraction
Relation to Representation of Real Numbers
Biased Exponent Format Minimum
Bias of Biased Exponent
Range of Fraction
Fraction
Relation to Representation of Real Numbers
Biased Exponent Format Minimum
Fraction (Mantissa/Significand)
Biased Exponent Format Maximum
Fraction
Sign
Biased Exponent Format Maximum
Fraction
Representation of Fraction
Maximum Positive Normalized
Minimum Positive Normalized
Minimum Positive Denormalized
Nonsignaling
Signaling
Nonzero Bit Pattern Created by User
Fraction When Created by FPCP
Table 9-4. Double-Precision Real Format Summary
Freescale Semiconductor, Inc.
For More Information On This Product,
63 62
s
Go to: www.freescale.com
e
M68040 USER’S MANUAL
Denormalized Numbers
52 51
Interpretation of Sign
Normalized Numbers
Approximate Ranges
Field Size (in Bits)
Signed Infinities
Signed Zeros
Data Format
NANs
f
(–1) s
0 < e < 2047 ($7FF)
(–1) s
Zero or Nonzero
+1023 ($3FF)
+1022 ($3FE)
11111…1111
2.2 x 10 –308
4.9 x 10 –324
2047 ($7FF)
1xxxx…xxxx
0xxxx…xxxx
xxxxx…xxxx
255 ($7FF)
1.8 x 10 308
0 ($000)
Nonzero
0.f = 0.0
0.f = 0.0
Nonzero
0 ($00)
0
2 e–1023
0 or 1
s = 1
2 –1022
s = 0
64
1.f
0.f
11
52
1
0.f
1.f
9- 9
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