Amiga ISO Collection/AmigaUtilCD2.iso/Misc/Electrics_1_0.lha/Examples/BusDrivers/BusDrivers.script

Text File | 1995-09-09 | 819 b | 68 lines

!--------------------------------------------------------
!This simulation Script file tests the BusDriver circuit.
!--------------------------------------------------------

view
  A0
  A1
  A2
  A3
  B0
  B1
  B2
  B3
  SELECT_A
  SELECT_B
  BUS0
  BUS1
  BUS2
  BUS3
section


!Tristate all bus drivers.

assign SELECT_A 0
assign SELECT_B 0
run

!Assign values to A and B.

assign A0 0
assign A1 1
assign A2 0
assign A3 1

assign B0 1
assign B1 0
assign B2 1
assign B3 0

run

!Drive A onto Bus, then tristate.

assign SELECT_A 1
run
assign SELECT_A 0
run

!Drive B onto Bus, then tristate.

assign SELECT_B 1
run
assign SELECT_B 0
run

!Cause bus-contention by enabling both sets of bus drivers.

assign SELECT_A 1
assign SELECT_B 1
run

!Tristate both sets of bus drivers.

assign SELECT_A 0
assign SELECT_B 0
run