The sample VHDL code contained below is for tutorial purposes. An expert may be bothered by some of the wording of the examples because this WEB page is intended for people just starting to learn the VHDL language. There is no intention of teaching logic design, synthesis or designing integrated circuits. It is hoped that people who become knowledgeable of VHDL will be able to develop better models and more rapidly meet whatever their objectives might be using VHDL simulations.

A few VHDL compilers have bugs. 'alias' may have to be eliminat ....etc

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Hello i Want a Vhdl code for 4 bit parallel multiplier and 8 bit parallel multiplier. ....etc

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I am Dibash Bordoloi,a student of B.E final semester.I want the documents of the topicOptical serial to parallel conversion technique with phase shifted preamble for optical label switching systems.So, I want the documents of the topic to make my seminar report.
The abstract is:
Abstract We have investigated the fundamental operation of
optical serial-to-parallel converter (OSPC) scheme with phaseshifted
preamble, and its application to optical label switching
operation. The OSPC consists of a /2 phase-shi ....etc

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please load the vhdl code for the above mentioned title..it's urgent.. ....etc

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parallel decimal multipliers vhdl code

Abstract

Decimal hardware arithmetic units have recently regained popularity, as there is now a high demand for high performance decimal arithmetic. We propose a novel method for carry-free addition of decimal numbers, where each equally weighted decimal digit pair of the two operands is partitioned into two weighted bit-sets. The arithmetic values of these bit-sets are evaluated, in parallel, for fast computation of the transfer digit and interim sum. In the proposed fully redundant adder (VS semi-redun ....etc

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I need segmentation based serial parallel multiplier iee papers. ....etc

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In this paper fast pipelined digit-serial/parallel multipliers are
proposed. The conventional digit-serial/parallel multipliers and
their pipelined versions are presented. Every structure has been
implemented on FPGA and the results are given. These results
have been analysed and it is detected that the pipelined ones do
not have the throughput improvement expected because of a
logic depth increment. As a consequence, a new structure
based on the fast serial/parallel multiplier proposed in has
been developed. The ....etc

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library IEE;
use IEE.std_logic_1164.all;
use IEE.STD_LOGIC_ARITH.ALL;
use IEE.STD_LOGIC_UNSIGNED.ALL;

entity badd32 is
port (a : in std_logic_vector(2 downto 0); -- Booth multiplier
b : in std_logic_vector(31 downto 0); -- multiplicand
sum_in : in std_logic_vector(31 downto 0); -- sum input
sum_out : out std_logic_vector(31 downto 0); -- sum output
prod : out std_logic_vector(1 downto 0)); -- 2 bits of product
end entity badd32;

architecture circuits of badd32 is
-- Note: Most of the multiply algorith ....etc

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please show the source code i want the source code designed in vhdl
implementable in modelsim ....etc

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A New VLSI Architecture of Parallel Multiplier Accumulator Based on Radix-2 Modified Booth Algorithm

Abstract
With the recent rapid advances in multimedia and communication systems, real-time signal processing like audio signal processing, video/image processing, or large-capacity data processing are increasingly being demanded. The multiplier and multiplier-and-accumulator (MAC) are the essential elements of the digital signal processing such as filtering, convolution, transformations and Inner products. Th ....etc

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