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Move sign-extension-ops before saturating truncation ops. #1192

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ngzhian merged 1 commit into from
May 18, 2020
Merged

Move sign-extension-ops before saturating truncation ops. #1192

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21 changes: 10 additions & 11 deletions document/core/binary/instructions.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -374,6 +374,16 @@ All other numeric instructions are plain opcodes without any immediates.
\hex{BF} &\Rightarrow& \F64.\REINTERPRET\K{\_}\I64 \\
\end{array}

.. math::
\begin{array}{llclll}
\phantom{\production{instruction}} & \phantom{\Binstr} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|&
\hex{C0} &\Rightarrow& \I32.\EXTEND\K{8\_s} \\ &&|&
\hex{C1} &\Rightarrow& \I32.\EXTEND\K{16\_s} \\ &&|&
\hex{C2} &\Rightarrow& \I64.\EXTEND\K{8\_s} \\ &&|&
\hex{C3} &\Rightarrow& \I64.\EXTEND\K{16\_s} \\ &&|&
\hex{C4} &\Rightarrow& \I64.\EXTEND\K{32\_s} \\
\end{array}

.. _binary-cvtop-trunc-sat:

The saturating truncation instructions all have a one byte prefix.
Expand All @@ -392,17 +402,6 @@ The saturating truncation instructions all have a one byte prefix.
\end{array}


.. math::
\begin{array}{llclll}
\phantom{\production{instruction}} & \phantom{\Binstr} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|&
\hex{C0} &\Rightarrow& \I32.\EXTEND\K{8\_s} \\ &&|&
\hex{C1} &\Rightarrow& \I32.\EXTEND\K{16\_s} \\ &&|&
\hex{C2} &\Rightarrow& \I64.\EXTEND\K{8\_s} \\ &&|&
\hex{C3} &\Rightarrow& \I64.\EXTEND\K{16\_s} \\ &&|&
\hex{C4} &\Rightarrow& \I64.\EXTEND\K{32\_s} \\
\end{array}


.. index:: expression
pair: binary format; expression
single: expression; constant
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