diff options
Diffstat (limited to 'manual/PRESENTATION_Intro.tex')
| -rw-r--r-- | manual/PRESENTATION_Intro.tex | 65 |
1 files changed, 53 insertions, 12 deletions
diff --git a/manual/PRESENTATION_Intro.tex b/manual/PRESENTATION_Intro.tex index 7697266de..ed600a3e1 100644 --- a/manual/PRESENTATION_Intro.tex +++ b/manual/PRESENTATION_Intro.tex @@ -277,7 +277,7 @@ Direct link to the files: \\ \footnotesize \medskip {\color{YosysGreen}\# the high-level stuff}\\ -\boxalert<3>{proc}; \boxalert<4>{opt}; \boxalert<5>{memory}; \boxalert<6>{opt}; \boxalert<7>{fsm}; \boxalert<8>{opt} +\boxalert<3>{proc}; \boxalert<4>{opt}; \boxalert<5>{fsm}; \boxalert<6>{opt}; \boxalert<7>{memory}; \boxalert<8>{opt} \medskip {\color{YosysGreen}\# mapping to internal cell library}\\ @@ -308,9 +308,9 @@ Direct link to the files: \\ \footnotesize \only<2>{hierarchy -check -top counter}% \only<3>{proc}% \only<4>{opt}% -\only<5>{memory}% +\only<5>{fsm}% \only<6>{opt}% -\only<7>{fsm}% +\only<7>{memory}% \only<8>{opt}% \only<9>{techmap}% \only<10>{opt}% @@ -333,13 +333,13 @@ Direct link to the files: \\ \footnotesize Perform some basic optimizations and cleanups. }% \only<5>{ - Analyze memories and create circuits to implement them. + Analyze and optimize finite state machines. }% \only<6>{ Perform some basic optimizations and cleanups. }% \only<7>{ - Analyze and optimize finite state machines. + Analyze memories and create circuits to implement them. }% \only<8>{ Perform some basic optimizations and cleanups. @@ -398,7 +398,7 @@ hierarchy -check -top counter \begin{frame}[t, fragile]{\subsecname{} -- Step 2/4} \begin{verbatim} -proc; opt; memory; opt; fsm; opt +proc; opt; fsm; opt; memory; opt \end{verbatim} \vfill @@ -427,6 +427,48 @@ clean %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +\subsection{The synth command} + +\begin{frame}[fragile]{\subsecname{}} +Yosys contains a default (recommended example) synthesis script in form of the +{\tt synth} command. The following commands are executed by this synthesis command: + +\begin{columns} +\column[t]{5cm} +\begin{lstlisting}[xleftmargin=1cm, basicstyle=\ttfamily\fontsize{8pt}{10pt}\selectfont, language=ys] +begin: + hierarchy -check [-top <top>] + +coarse: + proc + opt + wreduce + alumacc + share + opt + fsm + opt -fast + memory -nomap + opt_clean +\end{lstlisting} +\column[t]{5cm} +\begin{lstlisting}[xleftmargin=1cm, basicstyle=\ttfamily\fontsize{8pt}{10pt}\selectfont, language=ys] +fine: + opt -fast -full + memory_map + opt -full + techmap + opt -fast + +abc: + abc -fast + opt -fast +\end{lstlisting} +\end{columns} +\end{frame} + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + \subsection{Yosys Commands} \begin{frame}[fragile]{\subsecname{} 1/3 \hspace{0pt plus 1 filll} (excerpt)} @@ -500,6 +542,7 @@ Commands for writing the results: \bigskip Script-Commands for standard synthesis tasks: \begin{lstlisting}[xleftmargin=1cm, basicstyle=\ttfamily\fontsize{8pt}{10pt}\selectfont, language=ys] + synth # generic synthesis script synth_xilinx # synthesis for Xilinx FPGAs \end{lstlisting} @@ -603,12 +646,8 @@ endmodule \begin{frame}{\subsecname} \begin{itemize} -\item Multi-dimensional arrays (memories) -\item Writing to arrays using bit- and part-selects (todo for 0.4.0) -\item The wor/wand wire types (maybe for 0.4.0) \item Tri-state logic - -\bigskip +\item The wor/wand wire types (maybe for 0.5) \item Latched logic (is synthesized as logic with feedback loops) \item Some non-synthesizable features that should be ignored in synthesis are not supported by the parser and cause a parser error (file a bug report if you encounter this problem) \end{itemize} @@ -813,10 +852,12 @@ control logic because it is simpler than setting up a commercial flow. \item When building on other Linux distributions: \begin{itemize} \item Needs compiler with some C++11 support +\item See README file for build instructions \item Post to the subreddit if you get stuck \end{itemize} \item Ported to OS X (Darwin) and OpenBSD -\item No win32 support (yet) +\item Native win32 build with VisualStudio +\item Cross win32 build with MXE \end{itemize} \end{frame} |