watchall system "echo '0'" set t.in[0] 0 set t.in[1] 0 set t.in[2] 0 set t.in[3] 0 set t.in[4] 0 system "echo '1'" cycle mode run assert t.out 0 system "echo '[] setting some bits high'" set t.in[0] 1 set t.in[1] 1 set t.in[2] 1 cycle assert t.out 0 system "echo '[] setting all bits high'" set t.in[3] 1 set t.in[4] 1 cycle assert t.out 1 system "echo '[] setting some low'" set t.in[0] 0 set t.in[1] 0 cycle assert t.out 0 system "echo '[] setting all low'" set t.in[2] 0 set t.in[3] 0 set t.in[4] 0 cycle assert t.out 0