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单选题 integer a; initial begin cool=1; $display("After first assignment, a has value %d",cool); $strobe("When strobe is excuted, a has value %d",cool); cool=3; $display("After second assignment, a has value %d",cool); 关于这段程序产生的输出,说法正确的是( )
学科：可编程逻辑器件及应用
时间：2024-11-03 16:03:01
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题目1单选题
测试模块的后缀名一般是()A. .vB. .vtC. .hD. .vhd
题目2单选题
对一个两输入逻辑门进行仿真测试,下列选项中正确的是( )A. reg din1,din2; wire doutB. input din1,din2; output doutC. wire din1,din2; reg doutD. output din1,din2; input dout
题目3单选题
若a=9,执行$display("current value=%0b,a=%0d",a,a)正确显示为( )A. current value=1001,a=09B. current value=1001,a=9C. 1001,9D. current vale=00…001001,a=9
题目4单选题
integer a; initial begin cool=1; $display("After first assignment, a has value %d",cool); $strobe("When strobe is excuted, a has value %d",cool); cool=3; $display("After second assignment, a has value %d",cool); 关于这段程序产生的输出,说法正确的是( )A. After first assignment, a has value 1 When strobe is excuted, a has value 3 After second assignment, a has value 3B. After first assignment, a has value 1 When strobe is excuted, a has value 1 After second assignment, a has value 3C. After first assignment, a has value 3 When strobe is excuted, a has value 3 After second assignment, a has value 3D. 以上都不正确
题目5单选题
已知有一个设计模块exam(a,b,c,d),其中a,b为1位的输入端口,c,d为1位的输出端口.现对于该模块进行测试,下列编写的测试模块部分代码正确的为( )A. module exam_test; input a,b; output c,d; reg a,b; wire c,d; ........ enmoduleB. module exam_test; input a,b; output c,d; wire a,b; reg c,d; ........ enmoduleC. module exam_test; reg a,b; wire c,d; ........ enmoduleD. module exam_test; wire a,b; reg c,d; ........ enmodule
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