Computer Organization & Architecture
Memory Hierarchy & Floating Point
GATE 2008
Medium
In the IEEE floating point representation the hexadecimal value 0x00000000 corresponds to
- Athe normalized value 2⁻¹²⁷
- Bthe normalized value 2⁻¹²⁶
- Cthe normalized value +0
- the special value +0
Explanation
All bits zero means sign=0, exponent=00000000 (all zero), mantissa=all zero. An all-zero exponent with an all-zero mantissa is specifically defined as the SPECIAL value +0 (not a 'normalized' value at all — normalized numbers require a nonzero exponent field with an implicit leading 1).
Source: GATE CS 2008 (2008)
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