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% ===== Flow Graph =====================================================
% ======================================================================
\setlength{\unitlength}{1mm}
% The real height and origin are 216 and 5 but cheap a bit to move the
% caption up.
%\begin{picture}(160,216)(0,5)
\begin{picture}(160,211)(0,6)
\put(100,183){\makebox(0,0)[l]{\footnotesize waitidle = $\neg$(\verb"idle" or $\neg$\verb"dack")}}
\put(100,178){\makebox(0,0)[l]{\footnotesize waitdack = $\neg$\verb"dack"}}
\put(72,215){\thicklines{\oval(6,6)[tr]}}
\put(75,215){\thicklines{\vector(0,-1){2}}}
\put(75,208){\usebox{\loopcirc}}
\put(77,195){\makebox(0,0)[l]{\footnotesize waitidle}}
\put(75,208){\makebox(0,0)[c]{\Large 0}}
% lines out of state 0
\put(75,203){\thicklines{\vector(0,-1){19}}}
\put(75,193){\thicklines{\line(-1,0){62}}}
\put(73,190){\makebox(0,0)[r]{\footnotesize interrupt}}
\put(13,190){\thicklines{\oval(6,6)[tl]}}
\put(10,190){\thicklines{\vector(0,-1){6}}}
\put(10,179){\thicklines{\circle{10}}}
\put(10,179){\makebox(0,0)[c]{\Large 1}}
% lines out of state 1
\put(10,174){\thicklines{\line(0,-1){146}}}
\put(13,28){\thicklines{\oval(6,6)[bl]}}
\put(13,25){\thicklines{\line(1,0){60}}}
\put(72,22){\thicklines{\oval(6,6)[tr]}}
\put(75,179){\usebox{\loopcirc}}
\put(77,166){\makebox(0,0)[l]{\footnotesize waitdack}}
\put(75,179){\makebox(0,0)[c]{\Large 2}}
% lines out of state 2
\put(75,174){\thicklines{\vector(0,-1){19}}}
\put(75,150){\usebox{\loopcirc}}
\put(77,137){\makebox(0,0)[l]{\footnotesize waitidle}}
\put(75,150){\makebox(0,0)[c]{\Large 3}}
% lines out of state 3
\put(75,145){\thicklines{\line(0,-1){12.5}}}
\put(28,132.5){\thicklines{\line(1,0){129}}}
\put(157,129.5){\thicklines{\oval(6,6)[tr]}}
\put(160,129.5){\thicklines{\line(0,-1){81.5}}}
\put(157,48){\thicklines{\oval(6,6)[br]}}
\put(157,45){\thicklines{\line(-1,0){79}}}
\put(78,42){\thicklines{\oval(6,6)[tl]}}
\put(28,129.5){\thicklines{\oval(6,6)[tl]}}
\put(25,129.5){\thicklines{\vector(0,-1){9.5}}}
\put(45,132.5){\thicklines{\vector(0,-1){12.5}}}
\put(65,132.5){\thicklines{\vector(0,-1){12.5}}}
\put(85,132.5){\thicklines{\vector(0,-1){12.5}}}
\put(105,132.5){\thicklines{\vector(0,-1){12.5}}}
\put(125,132.5){\thicklines{\vector(0,-1){12.5}}}
\put(145,132.5){\thicklines{\vector(0,-1){12.5}}}
\put(23,129.5){\makebox(0,0)[r]{\footnotesize JZR}}
\put(43,129.5){\makebox(0,0)[r]{\footnotesize JMP}}
\put(63,129.5){\makebox(0,0)[r]{\footnotesize ADD}}
\put(83,129.5){\makebox(0,0)[r]{\footnotesize SUB}}
\put(103,129.5){\makebox(0,0)[r]{\footnotesize LDA}}
\put(123,129.5){\makebox(0,0)[r]{\footnotesize STA}}
\put(143,129.5){\makebox(0,0)[r]{\footnotesize RFI}}
\put(158.5,129.5){\makebox(0,0)[r]{\footnotesize NOP}}
\put(25,115){\thicklines{\circle{10}}}
\put(25,115){\makebox(0,0)[c]{\Large 4}}
\put(45,115){\thicklines{\circle{10}}}
\put(45,115){\makebox(0,0)[c]{\Large 5}}
\put(65,115){\usebox{\loopcirc}}
\put(67,102){\makebox(0,0)[l]{\footnotesize waitidle}}
\put(65,115){\makebox(0,0)[c]{\Large 6}}
\put(85,115){\usebox{\loopcirc}}
\put(87,102){\makebox(0,0)[l]{\footnotesize waitidle}}
\put(85,115){\makebox(0,0)[c]{\Large 7}}
\put(105,115){\usebox{\loopcirc}}
\put(107,102){\makebox(0,0)[l]{\footnotesize waitdack}}
\put(105,115){\makebox(0,0)[c]{\Large 8}}
\put(125,115){\usebox{\loopcirc}}
\put(127,102){\makebox(0,0)[l]{\footnotesize waitdack}}
\put(125,115){\makebox(0,0)[c]{\Large 9}}
\put(145,115){\thicklines{\circle{10}}}
\put(145,115){\makebox(0,0)[c]{\Large 10}}
% lines out of state 4
\put(25,110){\thicklines{\line(0,-1){62}}}
\put(28,48){\thicklines{\oval(6,6)[bl]}}
\put(28,45){\thicklines{\line(1,0){44}}}
\put(72,42){\thicklines{\oval(6,6)[tr]}}
\put(25,105){\thicklines{\line(1,0){7}}}
\put(26.25,102){\makebox(0,0)[l]{\footnotesize \verb"acc" is zero}}
\put(32,108){\thicklines{\oval(6,6)[br]}}
\put(35,108){\thicklines{\line(0,1){14}}}
\put(38,122){\thicklines{\oval(6,6)[tl]}}
\put(38,125){\thicklines{\line(1,0){4}}}
\put(42,122){\thicklines{\oval(6,6)[tr]}}
% lines out of state 5
\put(45,110){\thicklines{\line(0,-1){64}}}
\put(45,44){\thicklines{\line(0,-1){18}}}
\put(45,24){\thicklines{\line(0,-1){16}}}
\put(42,8){\thicklines{\oval(6,6)[br]}}
% lines out of state 6 and 7
\put(65,110){\thicklines{\vector(0,-1){20}}}
\put(85,110){\thicklines{\vector(0,-1){20}}}
% lines out of state 8 and 9
\put(105,110){\thicklines{\line(0,-1){62}}}
\put(102,48){\thicklines{\oval(6,6)[br]}}
\put(125,110){\thicklines{\line(0,-1){62}}}
\put(122,48){\thicklines{\oval(6,6)[br]}}
% lines out of state 10
\put(145,110){\thicklines{\line(0,-1){64}}}
\put(145,44){\thicklines{\line(0,-1){36}}}
\put(142,8){\thicklines{\oval(6,6)[br]}}
\put(142,5){\thicklines{\line(-1,0){139}}}
\put(3,8){\thicklines{\oval(6,6)[bl]}}
\put(0,8){\thicklines{\line(0,1){207}}}
\put(3,215){\thicklines{\oval(6,6)[tl]}}
\put(3,218){\thicklines{\line(1,0){69}}}
\put(65,85){\usebox{\loopcirc}}
\put(67,72){\makebox(0,0)[l]{\footnotesize waitdack}}
\put(65,85){\makebox(0,0)[c]{\Large 13}}
\put(85,85){\usebox{\loopcirc}}
\put(87,72){\makebox(0,0)[l]{\footnotesize waitdack}}
\put(85,85){\makebox(0,0)[c]{\Large 14}}
% lines out of state 13 and 14
\put(65,80){\thicklines{\line(0,-1){9}}}
% hack 68 to 68.25
\put(68.25,71){\thicklines{\oval(6,6)[bl]}}
\put(85,80){\thicklines{\line(0,-1){9}}}
\put(82,71){\thicklines{\oval(6,6)[br]}}
\put(68,68){\thicklines{\line(1,0){14}}}
\put(75,68){\thicklines{\vector(0,-1){8}}}
\put(75,55){\thicklines{\circle{10}}}
\put(75,55){\makebox(0,0)[c]{\Large 15}}
% lines out of state 15
\put(75,50){\thicklines{\vector(0,-1){10}}}
\put(75,35){\thicklines{\circle{10}}}
\put(75,35){\makebox(0,0)[c]{\Large 11}}
% lines out of state 11
\put(75,30){\thicklines{\vector(0,-1){10}}}
\put(75,15){\thicklines{\circle{10}}}
\put(75,15){\makebox(0,0)[c]{\Large 12}}
% lines out of state 12
\put(75,10){\thicklines{\line(0,-1){2}}}
\put(72,8){\thicklines{\oval(6,6)[br]}}
\end{picture}
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