This document describes proposed encodings (concrete representations)
which are suitable for supporting the general purpose
IEEE-854-conforming decimal arithmetic defined in the Decimal
Arithmetic Specification.[1]
Inclusions
This specification defines the following:
The formats and layouts of 32-bit, 64-bit, and 128-bit decimal numbers
(decimal32, decimal64, and decimal128
respectively)
The range of numerical values which can be represented by the formats
The range of exponents which can be represented by the formats.
Exclusions
This specification does not define the following:
The semantics of arithmetic and other operations on encoded numbers
Exceptions and other consequences of operations on encoded numbers
Encodings of context information
Encodings for arbitrary precision decimal arithmetic beyond the
specified sizes.