Single Precision (one 36-bit word) floating point:
Unisys/Univac Floating Point Representations: "F_Floating" Structure (36 bits): | |||||||||||||||||||||||||||||||||||
35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Sign Bit | Exponent (bias: 12810) | Fraction: bit 26 is the most significant |
Double Precision (two 36-bit words) floating point:
Unisys/Univac Floating Point Representations: Double Precision (72 bits): First 36-bit Word: | |||||||||||||||||||||||||||||||||||
35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Sign Bit | Exponent (bias: 102410) | Fraction (First, most significant part): bit 23 is the most significant |
Unisys/Univac Floating Point Representations: Double Precision (72 bits): Second 36-bit Word: | |||||||||||||||||||||||||||||||||||
35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Fraction (Second, less significant part): bit 35 is the most significant bit in this word |
EXPONENT (E): To the base 2, with a bias in the single precision floating point of 128 decimal (200 octal), and in the double precision floating point of 1024 decimal (2000 octal).
FRACTION: Has no hidden bit.