文章分类 -  Hdlbits的Verilog学习 / basic gates

3-bit population count
摘要：题目如下： A "population count" circuit counts the number of '1's in an input vector. Build a population count circuit for a 3-bit input vector. 代码如下： modu 阅读全文
posted @ 2024-03-07 18:02 江左子固 阅读(23) 评论(0) 推荐(0)
thermostat
摘要：题目如下： A heating/cooling thermostat controls both a heater (during winter) and an air conditioner (during summer). Implement a circuit that will turn o 阅读全文
posted @ 2024-03-07 18:00 江左子固 阅读(15) 评论(0) 推荐(0)
ring or vibrate?
摘要：题目如下： Suppose you are designing a circuit to control a cellphone's ringer and vibration motor. Whenever the phone needs to ring from an incoming call 阅读全文
posted @ 2024-03-07 17:33 江左子固 阅读(15) 评论(0) 推荐(0)
combine circuits A and B
摘要：题目如下： 代码如下： module top_module (input x, input y, output z); wire za; wire zb; assign za = (x ^ y) & x; assign zb = ~(x ^ y); assign z = (za | zb) ^ (z 阅读全文
posted @ 2024-03-07 16:19 江左子固 阅读(8) 评论(0) 推荐(0)
simple circuit B
摘要：题目如下： 代码如下： module top_module ( input x, input y, output z ); assign z=~(x^y); endmodule 阅读全文
posted @ 2024-03-07 16:15 江左子固 阅读(6) 评论(0) 推荐(0)
simple circuit A
摘要：题目如下： Module A is supposed to implement the function z = (x^y) & x. Implement this module. 代码如下： module top_module (input x, input y, output z); assig 阅读全文
posted @ 2024-03-07 16:12 江左子固 阅读(9) 评论(0) 推荐(0)
two-bit equality
摘要：题目如下： Create a circuit that has two 2-bit inputs A[1:0] and B[1:0], and produces an output z. The value of z should be 1 if A = B, otherwise z should 阅读全文
posted @ 2024-03-07 16:09 江左子固 阅读(9) 评论(0) 推荐(0)
truth tables
摘要：题目如下： In the previous exercises, we used simple logic gates and combinations of several logic gates. These circuits are examples of combinational circ 阅读全文
posted @ 2024-03-07 16:04 江左子固 阅读(11) 评论(0) 推荐(0)
7420 chip
摘要：题目如下： The 7400-series integrated circuits are a series of digital chips with a few gates each. The 7420 is a chip with two 4-input NAND gates. 代码如下： m 阅读全文
posted @ 2024-03-07 15:54 江左子固 阅读(10) 评论(0) 推荐(0)
more logic gates
摘要：题目： Ok, let's try building several logic gates at the same time. Build a combinational circuit with two inputs, a and b. There are 7 outputs, each wit 阅读全文
posted @ 2024-03-07 15:44 江左子固 阅读(16) 评论(0) 推荐(0)
wire&gnd&nor&another gate
摘要：题目如图： 代码如下： module top_module ( input in, output out); assign out=in; endmodule 题目如图： 代码如下： module top_module ( output out); assign out=1'b0; endmodul 阅读全文
posted @ 2024-03-07 14:41 江左子固 阅读(7) 评论(0) 推荐(0)
even longer vectors
摘要：See also the shorter version: Gates and vectors. You are given a 100-bit input vector in[99:0]. We want to know some relationships between each bit an 阅读全文
posted @ 2023-04-21 13:52 江左子固 阅读(27) 评论(0) 推荐(0)
gates and vectors
摘要：You are given a four-bit input vector in[3:0]. We want to know some relationships between each bit and its neighbour: out_both: Each bit of this outpu 阅读全文
posted @ 2023-04-21 13:49 江左子固 阅读(24) 评论(0) 推荐(0)
two gates
摘要：这道题自己换了一种写法，也是可以运行的，算是过程赋值语句和持续赋值语句的一个小小的对比，也可见《搭建你的数字积木》一书的P56，借鉴了上面的案例。 1 /*module top_module ( 2 input in1, 3 input in2, 4 input in3, 5 output out) 阅读全文
posted @ 2023-04-21 12:32 江左子固 阅读(19) 评论(0) 推荐(0)