; start of Pattern Definition section
RADIX 4 4 1
vname a[[3:0]] b[[3:0]] cin
IO I I I
period 5
tunit ns
slope 0.01
vih 1
vil 0
voh 0.7
vol 0.3

;Vector Table
0 0 0
1 1 0
2 1 1
F 0 1