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\chapter{``L'' Standard Extension for Decimal Floating-Point, Version 0.0}
{\bf This chapter is a draft proposal that has not been ratified by
the Foundation.}
This chapter is a placeholder for the specification of a standard
extension named ``L'' designed to support decimal floating-point
arithmetic as defined in the IEEE 754-2008 standard.
\section{Decimal Floating-Point Registers}
Existing floating-point registers are used to hold 64-bit and 128-bit
decimal floating-point values, and the existing floating-point load
and store instructions are used to move values to and from memory.
\begin{commentary}
Due to the large opcode space required by the fused multiply-add
instructions, the decimal floating-point instruction extension will
require five 25-bit major opcodes in a 30-bit encoding space.
\end{commentary}
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