题目: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.Create a module with the same functionality as the 7420 chip. It has 8 inputs and 2 outputs. 图片来自HDLBits 大白话:7420芯片内部集成了两个4输入...
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 with a logic gate driving it: out_and: a and b (与门) out_or: a or b (或门) out_xor: a xor b (异或门) out_nand: a nand b ...
out_different[2]should indicate ifin[2]is different fromin[3]. For this part, treat the vector as wrapping around, soin[3]'s neighbour to the left isin[0].
从今天开始新的一章-Circuits，包括基本逻辑电路、时序电路、组合电路等。今天更新整个Basic Gates一小节题...
3.1.1Basic Gates 3.1.1.1 Wire(Exams/m2014 q4h) module top_module ( input in, output out); assign out = in; endmodule 3.1.1.2 GND(Exams/m2014 q4i) module top_module ( output out); assign out = 1'b0; endmodule 3.1.1.3NOR(Exams/m2014 q4e) ...
There are several statements in Verilog that have no analog in real hardware, e.g. $display. Consequently, much of the language can not be used to describe hardware. The examples presented here are the classic subset of the language that has a direct mapping to real gates. ...
// Wait 100 ns for global reset to finish #100; a = 2; b = 3; cin = 1; // Wait 100 ns for global reset to finish #100 end endmodule Related Programs: Verilog program for Basic Logic Gates Verilog program for Half Adder
// Wait 100 ns for global reset to finish #100; a = 6; b = 2; bin = 1; // Wait 100 ns for global reset to finish #100; end endmodule Related Programs: Verilog program for Basic Logic Gates Verilog program for Half Adder
it is very Unexpected latches may be generated. Due to the need to use logic gates related to the process, user-defined primitives may not be converted. Designers need to adopt a good code style to obtain more optimized logic synthesis results. In order to adapt to the system chip and IP...
// Code to either generate a u1.g1 instance or no instance. // The u1.g1 instance of one of the following gates: // (and, or, xor, xnor) is generated if // {p,q} == {1,0}, {1,2}, {2,0}, {2,1}, {2,2}, {2, default} ...