Description: Traffic light control system
A main road and a junction with a cross made of branches trunks. According to Commission
Meter, main road traffic to slip twice. Requirements:
1), under normal circumstances, release of two turns, and the main road of releasing time
Is the branch twice. Signal conversion, the following rule shows:
From the passage into a stop, press the green → yellow → red sequence changes
Into a passage from the stop, press the flashing red → green → order changes
Trunk and branch display must ensure that they are interleaved.
2), when on the road there special vehicles (such as police cars, fire engines, etc.), the Road
Mouth it should be released immediately, and to stop the other direction. If the two directions
At the same time there special vehicles, seasonal vehicles first release trunk
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t33.asm
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