文章分类 - Hdlbits的Verilog学习
摘要：You are provided with a BCD one-digit adder named bcd_fadd that adds two BCD digits and carry-in, and produces a sum and carry-out. module bcd_fadd (
阅读全文
摘要：Create a 100-bit binary ripple-carry adder by instantiating 100 full adders. The adder adds two 100-bit numbers and a carry-in to produce a 100-bit su
阅读全文
摘要：A "population count" circuit counts the number of '1's in an input vector. Build a population count circuit for a 255-bit input vector. Popcount255 -
阅读全文
摘要：Given a 100-bit input vector [99:0], reverse its bit ordering. Vector100r - HDLBits (01xz.net) 1 module top_module( 2 input [99:0] in, 3 output [99:0]
阅读全文
摘要：Build a combinational circuit with 100 inputs, in[99:0]. There are 3 outputs: out_and: output of a 100-input AND gate. out_or: output of a 100-input O
阅读全文
摘要：You're already familiar with bitwise operations between two values, e.g., a & b or a ^ b. Sometimes, you want to create a wide gate that operates on a
阅读全文
摘要：Verilog has a ternary conditional operator ( ? : ) much like C: (condition ? if_true : if_false) This can be used to choose one of two values based on
阅读全文
摘要：Suppose you're building a circuit to process scancodes from a PS/2 keyboard for a game. Given the last two bytes of scancodes received, you need to in
阅读全文
摘要：Build a priority encoder for 8-bit inputs. Given an 8-bit vector, the output should report the first (least significant) bit in the vector that is 1.
阅读全文
摘要：A priority encoder is a combinational circuit that, when given an input bit vector, outputs the position of the first 1 bit in the vector. For example
阅读全文
摘要：Case statements in Verilog are nearly equivalent to a sequence of if-elseif-else that compares one expression to a list of others. Its syntax and func
阅读全文
摘要：When designing circuits, you must think first in terms of circuits: I want this logic gate I want a combinational blob of logic that has these inputs
阅读全文
摘要：This is equivalent to using a continuous assignment with a conditional operator: assign out = (condition) ? x : y; However, the procedural if statemen
阅读全文
摘要：For hardware synthesis, there are two types of always blocks that are relevant: Combinational: always @(*) Clocked: always @(posedge clk) Clocked alwa
阅读全文
摘要：Since digital circuits are composed of logic gates connected with wires, any circuit can be expressed as some combination of modules and assign statem
阅读全文
摘要：One drawback of the ripple carry adder (See previous exercise) is that the delay for an adder to compute the carry out (from the carry-in, in the wors
阅读全文
摘要：In this exercise, you will create a circuit with two levels of hierarchy. Your will instantiate two copies of (provided), each of which will instantia
阅读全文
摘要：You are given a module that performs a 16-bit addition. Instantiate two of them to create a 32-bit adder. One add16 module computes the lower 16 bits
阅读全文
摘要：This exercise is an extension of module_shift. Instead of module ports being only single pins, we now have modules with vectors as ports, to which you
阅读全文
摘要：You are given a module my_dff with two inputs and one output (that implements a D flip-flop). Instantiate three of them, then chain them together to m
阅读全文
浙公网安备 33010602011771号