freepascal.compiler/docs/syntax/statasm.syn

\begin{diagram}{Assembler statements}{asmstatement}
\begin{mysyntdiag}
\synt{asm\ statement}
\lit*{asm}
\synt{assembler\ code}
\lit{end}
\[
\synt{registerlist}
\]
\end{mysyntdiag}
\begin{mysyntdiag}
\synt{registerlist}
\lit*[
\<[b] \synt{string constant} \\ \lit*, \>
\lit*]
\end{mysyntdiag}
\end{diagram}