\begin{document}
-\begin{psmatrix}[mnode=oval, colsep=1.91cm, rowsep=1cm]
-[mnode=R,name=vars]{\shortstack[l]{bool s=F,first=T;\\int z:=0, c,\\\, strich:=0, punkt:=1;\\opcode
-op,opn;}} &
+\begin{psmatrix}[mnode=oval, colsep=1.95cm, rowsep=1cm]
+[mnode=R,name=vars]{\shortstack[l]{int s, z, c,\\\, strich, punkt;\\opcode aktop,opp;}} &
[name=calc]{\shortstack{\textbf{calc}\\z:=z*10\\+(c-'0');}} &
-[name=null]{\shortstack{\textbf{null}\\op:=DONE;}} \\
+[name=blank]{\shortstack{\textbf{blank}}} \\
%%
[mnode=R,name=res]{sys\_res} &
-[name=sign]{\shortstack{\textbf{sign}\\s:=true;}} &
-[name=alu1]{
- \shortstack{
- \textbf{ALU1}\\
- \shortstack[l]{
- if(first)\{\\
- \, alu(ADD,z*s,strich);\\
- \, first:=false;\\
- \} else\{\\
- \, alu(opd,z*s,strich);\\
- \}\\
- do\_calc=1;\\
- opn=op;
- }
- }
-} \\
+[name=sign]{\shortstack{\textbf{sign}\\s:=-1;}} &
+[name=null]{\shortstack{\textbf{null}\\aktop:=DONE;}} \\
%%
-[name=idle]{\shortstack{\textbf{idle}}} &
-[name=read]{\shortstack{\textbf{read char}\\z:=0;\\s:=false;}} &
-[name=alu2]{
+[name=idle]{\shortstack{\textbf{idle}\\strich:=0;\\punkt:=1;\\opp:=NOP;}} &
+[name=read]{\shortstack{\textbf{read char}\\z:=0;\\s:=1;}} &
+[name=alu]{
\shortstack{
- \textbf{ALU2}\\
- \shortstack[l]{
- if(first)\{\\
- \, alu(MUL,z*s,punkt);\\
- \, first:=false;\\
- \} else\{\\
- \, alu(opd,z*s,punkt);\\
- \}\\
- do\_calc=1;\\
- opn=op;
- }
+ \textbf{ALU}\\
+ siehe Listing
}
} \\
%%
\ncline[linestyle=dotted]{res}{idle}
\ncline[linestyle=dotted]{void}{err}
-\ncarc[arcangle=10]{done}{idle}
+\ncarc[arcangle=0]{done}{idle}
\ncarc[arcangle=0]{err}{idle}
\ncarc[arcangle=0]{idle}{read}\ncput*[npos=.50]{do\_it$\uparrow$}
-
+\nccurve[angleA=45,angleB=75,ncurvA=2,ncurvB=2]{read}{read}\ncput*{' '}
\ncarc[arcangle=0]{read}{sign}\ncput*[npos=.50]{'-'}
-\ncarc[arcangle=0]{sign}{calc}
-\ncarc[arcangle=35]{read}{calc}\ncput*[npos=.35]{c = '0'\dots{}'9'}
-\nccircle[angle=0]{calc}{.8cm}\ncput*{c = '0'\dots{}'9'}
-\ncarc[arcangle=15]{calc}{alu1}\ncput*[npos=.50]{op = '+','-'}
-\ncarc[arcangle=-5]{calc}{alu2}\ncput*[npos=.30]{op = '*','/'}
+\ncarc[arcangle=0]{sign}{calc}
+\ncarc[arcangle=50]{read}{calc}\ncput*[npos=.35]{c = '0'\dots{}'9'}
+\nccircle[angleA=0]{calc}{.78cm}\ncput*[npos=0.5]{c = '0'\dots{}'9'}
-\ncarc[arcangle=0]{calc}{null}\ncput*[npos=.50]{'\textbackslash 0'}
+\ncarc[arcangle=15]{calc}{blank}\ncput*[npos=.50]{' '}
+\nccircle[angleA=0]{blank}{.70cm}\ncput*[npos=0.5]{' '}
-\ncarc[arcangle=0]{null}{alu1}\ncput*[npos=.50]{opd in ['+','-']}
-\ncarc[arcangle=48]{null}{alu2}\ncput*[npos=.80]{opd in ['*','/']}
+\ncarc[arcangle=67]{blank}{alu}\ncput*[npos=.80]{aktop = '+','-','*','/'}
+\ncarc[arcangle=0]{blank}{null}\ncput*[npos=.50]{aktop = '\textbackslash 0'}
-\ncarc[arcangle=0]{alu1}{read}\ncput*[npos=.50]{calc\_done$\uparrow$}
-\ncarc[arcangle=20]{alu2}{read}\ncput*[npos=.50]{calc\_done$\uparrow$}
+\ncarc[arcangle=0]{calc}{alu}\ncput*[npos=.70]{aktop = '+','-','*','/'}
+\ncarc[arcangle=0]{calc}{null}\ncput*[npos=.50]{aktop = '\textbackslash 0'}
+\ncarc[arcangle=0]{null}{alu}
-\ncarc[arcangle=80]{alu1}{done}\ncput*[npos=.50]{op == DONE}
-\ncarc[arcangle=-60]{alu2}{done}\ncput*[npos=.66]{op == DONE}
+\ncarc[arcangle=0]{alu}{read}\ncput*[npos=.50]{calc\_done$\uparrow$}
+\ncarc[arcangle=0]{alu}{done}\ncput*[npos=.50]{aktop == DONE}
\end{document}