diff options
| -rw-r--r-- | manual/APPNOTE_011_Design_Investigation.tex | 72 | ||||
| -rw-r--r-- | manual/APPNOTE_011_Design_Investigation/make.sh | 55 | ||||
| -rw-r--r-- | manual/make_appnotes.sh | 5 |
3 files changed, 90 insertions, 42 deletions
diff --git a/manual/APPNOTE_011_Design_Investigation.tex b/manual/APPNOTE_011_Design_Investigation.tex index 116c42e1..fb55c1ec 100644 --- a/manual/APPNOTE_011_Design_Investigation.tex +++ b/manual/APPNOTE_011_Design_Investigation.tex @@ -686,15 +686,16 @@ of the module and wants to carefully read all the debug output created by the commands in order to spot a problem. This kind of troubleshooting is much easier if the circuit under investigation is encapsulated in a separate module. -\begin{figure}[b] -\includegraphics[width=\linewidth,trim=0 0cm 0 0cm]{APPNOTE_011_Design_Investigation/submod_00.pdf} \\ \centerline{\tt memdemo} \vskip1em - -\includegraphics[width=\linewidth,trim=0 0cm 0 0cm]{APPNOTE_011_Design_Investigation/submod_01.pdf} \\ \centerline{\tt scramble} \vskip1em - -\includegraphics[width=\linewidth,trim=0 0cm 0 0cm]{APPNOTE_011_Design_Investigation/submod_02.pdf} \\ \centerline{\tt outstage} \vskip1em - -\includegraphics[width=\linewidth,trim=0 0cm 0 0cm]{APPNOTE_011_Design_Investigation/submod_03.pdf} \\ \centerline{\tt selstage} \vskip1em +Fig.~\ref{submod} shows how the {\tt submod} command can be used to split the +circuit from Fig.~\ref{memdemo_src} and \ref{memdemo_00} into its components. +The {\tt -name} option can is used to specify the name of the new module and +also the name of the new cell in the current module. +\begin{figure}[t] +\includegraphics[width=\linewidth,trim=0 1.3cm 0 0cm]{APPNOTE_011_Design_Investigation/submod_00.pdf} \\ \centerline{\tt memdemo} \vskip1em\par +\includegraphics[width=\linewidth,trim=0 1.3cm 0 0cm]{APPNOTE_011_Design_Investigation/submod_01.pdf} \\ \centerline{\tt scramble} \vskip1em\par +\includegraphics[width=\linewidth,trim=0 1.3cm 0 0cm]{APPNOTE_011_Design_Investigation/submod_02.pdf} \\ \centerline{\tt outstage} \vskip1em\par +\includegraphics[width=\linewidth,trim=0 1.3cm 0 0cm]{APPNOTE_011_Design_Investigation/submod_03.pdf} \\ \centerline{\tt selstage} \vskip1em\par \begin{lstlisting}[basicstyle=\ttfamily\scriptsize] select -set outstage y %ci2:+$dff[Q,D] %ci*:-$mux[S]:-$dff select -set selstage y %ci2:+$dff[Q,D] %ci*:-$dff @outstage %d @@ -707,8 +708,61 @@ submod -name selstage @selstage \label{submod} \end{figure} +\subsection{Evaluation of combinatorial circuits} + +The {\tt eval} command can be used to evaluate combinatorial circuits. +For example (see Fig.~\ref{submod} for the circuit diagram of {\tt selstage}): + +{\scriptsize +\begin{verbatim} + yosys [selstage]> eval -set s2,s1 4'b1001 -set d 4'hc -show n2 -show n1 + + 9. Executing EVAL pass (evaluate the circuit given an input). + Full command line: eval -set s2,s1 4'b1001 -set d 4'hc -show n2 -show n1 + Eval result: \n2 = 2'10. + Eval result: \n1 = 2'10. +\end{verbatim} +\par} + +So the {\tt -set} option is used to set input values and the {\tt -show} option +is used to specify the nets to evaluate. If no {\tt -show} option is specified, +all selected output ports are used per default. -\FIXME{} --- submod, eval, sat +If a necessary input value is not given, an error is produced. The option +{\tt -set-undef} can be used to instead set all unspecified input nets to +undef ({\tt x}). + +The {\tt -table} option can be used to create a truth table. For example: + +{\scriptsize +\begin{verbatim} + yosys [selstage]> eval -set-undef -set d[3:1] 0 -table s1,d[0] + + 15. Executing EVAL pass (evaluate the circuit given an input). + Full command line: eval -set-undef -set d[3:1] 0 -table s1,d[0] + + \s1 \d [0] | \n1 \n2 + ---- ------ | ---- ---- + 2'00 1'0 | 2'00 2'00 + 2'00 1'1 | 2'xx 2'00 + 2'01 1'0 | 2'00 2'00 + 2'01 1'1 | 2'xx 2'01 + 2'10 1'0 | 2'00 2'00 + 2'10 1'1 | 2'xx 2'10 + 2'11 1'0 | 2'00 2'00 + 2'11 1'1 | 2'xx 2'11 + + Assumend undef (x) value for the following singals: \s2 +\end{verbatim} +} + +\subsection{Solving combinatorial SAT problems} + +\FIXME + +\subsection{Solving sequential SAT problems} + +\FIXME \section{Conclusion} \label{conclusion} diff --git a/manual/APPNOTE_011_Design_Investigation/make.sh b/manual/APPNOTE_011_Design_Investigation/make.sh index a88f642d..598ff88d 100644 --- a/manual/APPNOTE_011_Design_Investigation/make.sh +++ b/manual/APPNOTE_011_Design_Investigation/make.sh @@ -1,34 +1,23 @@ #!/bin/bash -../../yosys example.ys -../../yosys -p 'proc; opt; show -format dot -prefix splice' splice.v -../../yosys -p 'techmap; abc -liberty ../../techlibs/cmos/cmos_cells.lib;; show -format dot -prefix cmos_00' cmos.v -../../yosys -p 'techmap; splitnets -ports; abc -liberty ../../techlibs/cmos/cmos_cells.lib;; show -lib ../../techlibs/cmos/cmos_cells.v -format dot -prefix cmos_01' cmos.v -../../yosys -p 'opt; cd sumprod; select a:sumstuff; show -format dot -prefix sumprod_00' sumprod.v -../../yosys -p 'opt; cd sumprod; select a:sumstuff %x; show -format dot -prefix sumprod_01' sumprod.v -../../yosys -p 'opt; cd sumprod; select prod; show -format dot -prefix sumprod_02' sumprod.v -../../yosys -p 'opt; cd sumprod; select prod %ci; show -format dot -prefix sumprod_03' sumprod.v -../../yosys -p 'opt; cd sumprod; select prod %ci2; show -format dot -prefix sumprod_04' sumprod.v -../../yosys -p 'opt; cd sumprod; select prod %ci3; show -format dot -prefix sumprod_05' sumprod.v -../../yosys -p 'proc; opt; memory; opt; cd memdemo; show -format dot -prefix memdemo_00' memdemo.v -../../yosys -p 'proc; opt; memory; opt; cd memdemo; show -format dot -prefix memdemo_01 y %ci2:+$dff[Q,D] %ci*:-$mux[S]:-$dff' memdemo.v -../../yosys submod.ys -sed -i '/^label=/ d;' example_*.dot splice.dot cmos_*.dot sumprod_*.dot memdemo_*.dot submod_*.dot -dot -Tpdf -o example_00.pdf example_00.dot -dot -Tpdf -o example_01.pdf example_01.dot -dot -Tpdf -o example_02.pdf example_02.dot -dot -Tpdf -o example_03.pdf example_03.dot -dot -Tpdf -o splice.pdf splice.dot -dot -Tpdf -o cmos_00.pdf cmos_00.dot -dot -Tpdf -o cmos_01.pdf cmos_01.dot -dot -Tpdf -o sumprod_00.pdf sumprod_00.dot -dot -Tpdf -o sumprod_01.pdf sumprod_01.dot -dot -Tpdf -o sumprod_02.pdf sumprod_02.dot -dot -Tpdf -o sumprod_03.pdf sumprod_03.dot -dot -Tpdf -o sumprod_04.pdf sumprod_04.dot -dot -Tpdf -o sumprod_05.pdf sumprod_05.dot -dot -Tpdf -o memdemo_00.pdf memdemo_00.dot -dot -Tpdf -o memdemo_01.pdf memdemo_01.dot -dot -Tpdf -o submod_00.pdf submod_00.dot -dot -Tpdf -o submod_01.pdf submod_01.dot -dot -Tpdf -o submod_02.pdf submod_02.dot -dot -Tpdf -o submod_03.pdf submod_03.dot +set -ex +if true; then + rm -f *.dot + ../../yosys example.ys + ../../yosys -p 'proc; opt; show -format dot -prefix splice' splice.v + ../../yosys -p 'techmap; abc -liberty ../../techlibs/cmos/cmos_cells.lib;; show -format dot -prefix cmos_00' cmos.v + ../../yosys -p 'techmap; splitnets -ports; abc -liberty ../../techlibs/cmos/cmos_cells.lib;; show -lib ../../techlibs/cmos/cmos_cells.v -format dot -prefix cmos_01' cmos.v + ../../yosys -p 'opt; cd sumprod; select a:sumstuff; show -format dot -prefix sumprod_00' sumprod.v + ../../yosys -p 'opt; cd sumprod; select a:sumstuff %x; show -format dot -prefix sumprod_01' sumprod.v + ../../yosys -p 'opt; cd sumprod; select prod; show -format dot -prefix sumprod_02' sumprod.v + ../../yosys -p 'opt; cd sumprod; select prod %ci; show -format dot -prefix sumprod_03' sumprod.v + ../../yosys -p 'opt; cd sumprod; select prod %ci2; show -format dot -prefix sumprod_04' sumprod.v + ../../yosys -p 'opt; cd sumprod; select prod %ci3; show -format dot -prefix sumprod_05' sumprod.v + ../../yosys -p 'proc; opt; memory; opt; cd memdemo; show -format dot -prefix memdemo_00' memdemo.v + ../../yosys -p 'proc; opt; memory; opt; cd memdemo; show -format dot -prefix memdemo_01 y %ci2:+$dff[Q,D] %ci*:-$mux[S]:-$dff' memdemo.v + ../../yosys submod.ys + sed -i '/^label=/ d;' *.dot +fi +for dot_file in *.dot; do + pdf_file=${dot_file#.dot}.pdf + dot -Tpdf -o example_00.pdf example_00.dot +done diff --git a/manual/make_appnotes.sh b/manual/make_appnotes.sh index 478e4cf9..f816956a 100644 --- a/manual/make_appnotes.sh +++ b/manual/make_appnotes.sh @@ -4,6 +4,11 @@ set -ex for job in APPNOTE_010_Verilog_to_BLIF APPNOTE_011_Design_Investigation do [ -f $job.ok -a $job.ok -nt $job.tex ] && continue + if [ -f $job/make.sh ]; then + cd $job + bash make.sh + cd .. + fi old_md5=$([ -f $job.aux ] && md5sum < $job.aux || true) while pdflatex -shell-escape -halt-on-error $job.tex |