light1.ucf

A方向和B方向各设红（R）、黄（Y）、绿（G）和左拐（L）4盏灯

net GCLK loc=p79;
net P<0> loc=p102;
net P<1> loc=p101;
net P<2> loc=p100;
net P<3> loc=p97;
net N<0> loc=p96;
net N<1> loc=p95;
net N<2> loc=p94;
net N<3> loc=p93;
net N<4> loc=p85;
net N<5> loc=p76;
net N<6> loc=p62;
net N<7> loc=p61;