rvalp/book/rv32m/chapter.tex

\chapter{RV32M Standard Extension}
\label{chapter:rv32m}
\index{RV32M}

\section{Introduction}


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32-bit integer multiply and divide instructions.

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\subsection{MUL rd, rs1, rs2}
\index{Instruction!MUL}

Multiply \reg{rs1} by \reg{rs2} and store the least significant 32-bits
of the result in \reg{rd}.

\DrawInsnTypeRPicture{MUL x7, x3, x31}{00000011111100111000001110110011}


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\subsection{MULH rd, rs1, rs2}
\index{Instruction!MULH}

\DrawInsnTypeRPicture{MULH x7, x3, x31}{00000011111100111001001110110011}

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\subsection{MULHS rd, rs1, rs2}
\index{Instruction!MULHS}

\DrawInsnTypeRPicture{MULHS x7, x3, x31}{00000011111100111010001110110011}

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\subsection{MULHU rd, rs1, rs2}
\index{Instruction!MULHU}

\DrawInsnTypeRPicture{MULHU x7, x3, x31}{00000011111100111011001110110011}

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\subsection{DIV rd, rs1, rs2}
\index{Instruction!DIV}

\DrawInsnTypeRPicture{DIV x7, x3, x31}{00000011111100111100001110110011}

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\subsection{DIVU rd, rs1, rs2}
\index{Instruction!DIVU}

\DrawInsnTypeRPicture{DIVU x7, x3, x31}{00000011111100111101001110110011}

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\subsection{REM rd, rs1, rs2}
\index{Instruction!REM}

\DrawInsnTypeRPicture{REM x7, x3, x31}{00000011111100111110001110110011}

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\subsection{REMU rd, rs1, rs2}
\index{Instruction!REMU}

\DrawInsnTypeRPicture{REMU x7, x3, x31}{00000011111100111111001110110011}