* Control logic (Figure 5.6)
.include ./contX.spc
.include ./contP.spc
.include ./contPre.spc
.subckt control xv xvn xt xtn sf reset pe po e o on en Vdd 0
xcontX1 e o enp onp reset xvn xv 1 Vdd 0 contX
xcontX2 en o ep onp reset xt xtn 2 Vdd 0 contX
xcontP po sf pe e op en onp reset Vdd 0 contP
xcontPre enp onp op ep en on o e pe po Vdd 0 contPre
.ends