.PS # ex21SVG.m4 log_init(svg_font(sans-serif,11bp__)) dy = 0.2 ddy = 1.8*dy textht = textht*0.9 D: FlipFlop(D) T: FlipFlop(T) with .Chip.sw at last [].se + (0.4,0) RS: FlipFlop(RS) with .Chip.sw at last [].se + (0.4,0) JK: FlipFlop(JK) with .Chip.sw at last [].se + (0.4,0) `"FlipFlop(JK)"' at JK.s below `"FlipFlop(RS)"' at (RS.s,JK.s) below `"FlipFlop(T)"' at (T.s,JK.s) below `"FlipFlop(D)"' at (D.s,JK.s) below # Test 3: synchronous 3-bit counter define(`counterFF',``$1':FlipFlop(JK) `$2' "`$1'" at `$1'.Chip.sw-(3bp__,0) below ljust "1" at `$1'.PinCLR.end above "1" at `$1'.PinPR.end below') [ right_ counterFF(FF0) counterFF(FF1,with .Chip at FF0.Chip+(-28*L_unit,0)) counterFF(FF2,with .Chip at FF1.Chip+(-28*L_unit,0)) "1" at FF0.PinJ.end rjust "1" at FF0.PinK.end rjust Dc: FF2.Chip.sw+(-9*L_unit,-7.5*L_unit) Bot: Dc+(0,-3*L_unit) left_ GAnd: AND_gate at FF1.Chip.nw+(4*L_unit,12*L_unit) right_ line from FF2.PinCK.end left 3*L_unit line to (Here,Dc); dot line from FF1.PinCK.end left 3*L_unit line to (Here,Dc); dot line from FF0.PinCK.end left 3*L_unit line to (Here,Dc) then to Dc "svg_it(D`'svg_sub(C))" rjust line from FF2.PinK.end to FF2.PinJ.end; dot line to (Here,GAnd.Out) then to GAnd.Out line from FF1.PinK.end to FF1.PinJ.end; dot line to (Here,FF1.PinCLR.end+(0,3*L_unit)) line to (GAnd.In2+(6*L_unit,0),Here) then to GAnd.In2+(6*L_unit,0); dot line from FF0.PinQ.end right 0.1; dot line from GAnd.In2 to (Here,GAnd.In2) then to (Here,Bot) "svg_it(D`'svg_sub(00))" below line right 0.1 from FF1.PinQ.end; dot line from GAnd.In1 to (Here,GAnd.In1) then to (Here,Bot) "svg_it(D`'svg_sub(01))" below line right 0.1 from FF2.PinQ.end line to (Here,Bot); "svg_it(D`'svg_sub(02))" below ] with .n at 0.5<2nd[].s,3rd[].s> - (0,0.4) command "" # end font .PE