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Verilog For Multiplier

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71 Threads found on edaboard.com: Verilog For Multiplier
I have written a code for GF(16) multiplier in XILINX but i am getting some errors.plz help me. 135474 module mult4_4( input a, input b, output p0,p1,p2,p3,p4,p5,p6,p7 ); wirew; wires; wirec; and(w,a,b); and(w,a,b); and(w,a,b
i have this code and wanna to update it to multiply 4 by 3 bits any help :) thanx in advance // // // // // This file is part of the Amber project // // //
please share the code for fft computation. We have written the code for 8 bit vedic multiplier(urdhva tiryakbyham).
Unfortunate the floating point vendor libraries aren't provided as VHDL sources, most likely they even haven't been written in VHDL or verilog. They are designed to use the DSP hardware of different FPGA families in an optimal way, using respective low-level primitives. Altera e.g. is typically writing this stuff in AHDL. for the same (...)
Yes, you are on the right track. See this link for some info on assign statements and always blocks :
0x1FE000 is the correct answer for what you have done. In verilog, the sign of an assignment is determined solely by the right hand side of the equation. In your case you have a signed value multiplied with an unsigned value. The result of (signed * unsigned) is unsigned. All operands must be signed to get a signed result. r.b. Ooops,
i need code and block diagram for implementation of 16bit multiplication using carry save adder urgently. Can someone please help me out.
Hi, what trouble u have to written this array multipliers, having a verilog code or concept, send your written-ed verilog code. Regards, Rajavel
how to calculate the total delay when no. of clocks are used in verilog code and help me out to write the code for 8 bit wallace tree multiplier in verilog
I have got two different multiplier modules. 1. 4x4 multiplier 2. 8x8 multiplier Based on the length of the inputs a and b, one of these modules should be selected. I have written a code where enable becomes high when any of the input length is greater than 4 bit(binary). I cannot instantiate a module inside if or case (...)
The attached is a code fro 8*8 mulitplier this doesnot work. tried simulating with modelsim and xilinx ISM I want it to be a normal multiplier using addition by the integer value. please help `timescale 1ns / 1ps module multi8_8(input x,y,input clk, output z ); wire x_temp,y_temp; reg z_temp;
Did you ever consider using the the verilog signed type?
I am trying to build a ripple carry adder using a hierarchical verilog structure description. What I have is not working right... out puts are all messed up. My logic is messed up somewhere but not sure where. I grabbed the test bench from a 8 bit multiplier to use for the RCA and so I know I am overlooking something basic... any help (...)
obviously you don't know how to use google. "verilog booth code" generates a lot of hits. one of those hits looks like another student from your school posted their homework.
I want a verilog code for computation sharing multiplier
Can any body help me in doing verilog code for generic multiplier ?
90236 I am trying to implement a sequential shift and add 4bit multiplier as shown in the image. I am having a separate module for the 4 bit ripple carry adder. I have tested the adder module and it works fine. now i need to trigger it from the multiplier module. so that it triggers on the 'add' signal. please help
hi i m designing a bypassing multiplier. nd in this by checking the multipler bit, we can bypass a particular row or clumn so as to reduce switching activity. but in verilog, conditional use of generate statement is not being supported for bypassing. the reason is while elaborations, we cant conditionally call any other module. so what (...)
Google around for "verilog fixed point" and you'll find some inspiration...
hi can u send verilog or vhdl coding of 4x4 bit braun multiplier and 4x4 baugh wooley multiplier
i really need to know if is possible to multiply a clock frequency in verilog or maybe someone can explain me how to delay a clock signal with a quarter of a period
Hi There is a * operator in verilog for multiplication. Why is not it used in RTL for multiplication? Thanks
I am doing my final year M.E project....for that i have drawn a 4x4 wallace tree multiplier and simulated using microwind 3.1. I have got a correct output in Schematic simulation in DSCH2.But, When i create a verilog file for that and Compile in Microwind 3.1 and create a layout, in the layout simulation, I am not able to (...)
hello , i was trying to implement a clock multiplier by introducing a delay to one of the inputs to the xor gate here is my code module clkmul( clk,A,B,C); input clk; output A,B,C; reg A; always begin A <= #2 ~clk ; end assign B = #1 clk ; //v9 assign C = A ^ B; // c is ouput clock endmodule will this logic work t
try to use structural verilog... make code for multiplier first then connect all like this,,, : module multiplier_fn(inp1,inp2,product); input inp1,inp2; output product; assign product = inp1 * inp2; endmodule module activation_fn_2 (inp1,inp2,inp3,cin_low,cout1,out); input inp1; input inp2;
i'm sorry, but i'm looking for 'structural' design type of 8*8bit multiplier So why did you ask for a verilog code? ... such as 8*8bit array multiplier... And why didn't you try G00GLE? Also look for G00GLE images! [QU
see how concatenation works in verilog assign padded = {input,1'b0} //if padded is 5 bits
does anyone have modified booth multiplier code in verilog or vhdl?
Hi All, I need "verilog HDL code for a 32-bit Braun multiplier". plz anyone help me to implement an "16 bit unsigned parallel Braun multiplier" using verilog HDL code... also I have not so much knowledge of Braun multiplier.. So my dear friends if u have any study materials about (...)
Hi, I am presently stuck trying to figure out if I can even do this in verilog. What I have is a recursive instantiation of a module (gf_mult_pipe).. a variable pipelined Karatsuba multiplier. As seen in the code below, I am trying to figure out a way that the value for "PIPE_STAGES" can change depending on what it was previously. (...)
guys need some help regarding sequential multiplier
Hi, Its a good start but there is a lot to improve on this. Please check the following. Its the best that i have seen so far. It generates verilog code for Galois Field multiplier, Hamming Codes etc etc
1) Create the theorethical models for the I2C master and slave in verilog. Abstract youself as much as possible from logic issues (how was implemented?) and concentrate on functional behaviour (how it works?) when designing the models. Avoid using logic in your models. 2) Use the models in the simulations to test if the IP behaviour matches th
Is it possible to create a frequency multiplier with verilog that can be implemented in a FPGA? That means given a input signal of frequency f can a circuit be made that calculates the frequency M*f ???
i have designed a high speed, low power multiplier. can i use it in decimation filter to lower the filter's power consumption and increase its performance?? if so can u plz suggest how to proceed with the same!!! thanks in advance
Hi Digit0001, I'm not so familiar with VHDL but in verilog I can use signed singals to do twos complement multiplication without checking the sign bit. see example module tb (); reg signed mcand; reg signed mplier; wire signed result; initial begin // -80 x -32 mcand = 8'b
sum={A,Q}; sum is an output and A,Q are both inputs. Other than this, the code listed is probably a poor choice. Its best to avoid "while" in synthesized code -- it more used for testbenchs. "for" is a better choice, but keep in mind that real iterations will cause complexity to grow quickly. for college projects this might be ok, as (...)
I need a verilog code for a 128x32 bit montgomery multiplier for AES and public key cryptography applications pls.
Hi there, Recently I was trying to write a verilog Code for Multiplication by 3. Condition-My Input is variable-Unsigned or Signed My multiplier is fixed-3 So if i have -20 as input in binary my output should by -60. and 20 as input my output should be +60. I want to declare only one output that is product and (...)
i need verilog code for the twiddle factor ROM multiplier for radix 2 butterfly module 128 point fft. please help me. pls pls ........... its very urgent
does anyone have verilog code for booth radix-2 multiplier in verilog.i designed it,but it isn't fast and it have a lot of gates more than efficient.i khnow that for a faster booth multiplier i nedd to add CSA and compressor to it(or other adders like wallace tree),so does anyone help me (...)
Hi. I generated 1 sine wave (24bit output). In order to control the amplitude, the output multiply with a ratio(fixed point multiplier). for fix point multiplication, verilog declaration sin //zero pad ratio result_mult Asin <= result After the simulation, i realised that the THD+N is 74(-80db to
hello everbody i need help from verilog, if anybody having the smulated result both input and output for an 8*8 mutiplier using verilog , can u send it to me? thanks, deepa.v
Hi All, I am in need of a verilog code for multiplier or adder with latch function. (Neglect bit number and type.) If any one of you has the code, please upload it.
even in verilog .. just implement it as in matlab .. u can implement everything as bebehavioral modelling at first time
hi.......... i need a verilog code 4 ....... 4 a 16 multiplier of signed numbers by implementing the technique of correction vector(use only one 16bit carry look ahead adder) plz help me out..
Hi All, I am in need of a verilog code for a 32-bit multiplier. i have searched in but did not find the verilog code for 32 bit multiplier. If any one of you has the code, please upload it. Kind Regards
HI, How to model a frequency divider or multiplier with verilog-A? I have an input clk signal and I want to write a verilog-A model that can output different clock frequency based on the input clk frequency and the multiplier/divider value that user input. I have been trying for awhile but couldn't (...)
deepu, thatz the reason i am asking for some way to write a code which will test all cases. Will $random work in VHDL?? I am working on VHDL of Modelsim. I know that in verilog you can run a for loop to generate all the cases but in the case of VHDL i am not sure if we can do... thanks,
hi i have simulated and then synthesised a verilog code for both 8-bit & 16-bit array multiplier using carry sav adders on Xilinx.8.2. the results i got are as follows. result for 16- bit array multiplication Minimum period: 19.961ns (Maximum Frequency: 50.098MHz) Minimum input arrival time before (...)