Motorola MVME166, Installation Manual

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Using the 166Bug Debugger
4-18 MVME166 Single Board Computer Installation Guide
4
Single Precision Real
This format would appear in memory as:
A single precision number takes 4 bytes in memory.
Double Precision Real
This format would appear in memory as:
A double precision number takes 8 bytes in memory.
N
ote
The single and double precision formats have an implied
integer bit (always 1).
Extended Precision Real
This format would appear in memory as:
An extended precision number takes 10 bytes in memory.
1-bit sign field (1 binary digit)
8-bit biased exponent field (2 hex digits. Bias = $7F)
23-bit fraction field (6 hex digits)
1-bit sign field (1 binary digit)
11-bit biased exponent field (3 hex digits. Bias = $3FF)
52-bit fraction field (13 hex digits)
1-bit sign field (1 binary digit)
15-bit biased exponent field (4 hex digits. Bias = $3FFF)
64-bit mantissa field (16 hex digits)