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doc: Update documentation for multiplication registers.

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commit e0e983726acd9089cb25d6da57a937a174aea3ed 1 parent d5882c5
Wolfgang Puffitsch authored March 12, 2012
BIN  doc/isa.pdf
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11  doc/isa.tex
@@ -313,13 +313,13 @@ \subsection{Special Registers}
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   7 & \$membu & Memory load result as 4 $\times$ uint8\_t, read only, global \\
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   8 & \$membs & Memory load result as 4 $\times$ int8\_t, read only, global \\
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   \cmidrule{1-3}
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-  9 & \$mul & Multiplication result, per-cluster \\
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+  9 & \$mul0 & Multiplication result 0, per-cluster \\
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+  10 & \$mul1 & Multiplication result 1, per-cluster \\
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   \cmidrule{1-3}
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-  10 & \$rb & Return base, global \\
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-  11 & \$ro & Return offset, global \\
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-  12 & \$ba & Base address, read only, global \\
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+  11 & \$rb & Return base, global \\
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+  12 & \$ro & Return offset, global \\
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+  13 & \$ba & Base address, read only, global \\
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   \cmidrule{1-3}
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-  13 & ? & \\
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   14 & ? & \\
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   15 & ? & \\
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   \cmidrule{1-3}
@@ -573,6 +573,7 @@ \section{Notes}
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   write-through. Stores do not pull data into the caches (no write allocation).
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 \item Support for floating-point operations is optional.
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 \item Branches use a delay-slot if bit \texttt{d} is set, and do not use a delay slot if it is cleared
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+\item Loading from \texttt{\$mul} registers adds \texttt{src2} to the value.
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 \end{itemize}
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 \end{document}

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