EDN

VHDL 101 – From Logic Gates to Adders

VHDL is all about creating logic. As a descriptive language, all the HDL languages bring something unique to programming – making true parallel logic circuit. As we take baby steps into VHDL, we will ...
EDN

Control Synthesis Output with Combinatorial Logic in Procedural Code

While it is tempting to write RTL and let the synthesis tool take over, this isn’t the best way to get the results we want. In this article, we’ll learn how to create complex combinatorial code in ...
TechRepublic

32 Bit Parallel Multiplier Using VHDL

In this paper, design of 32-bit parallel multiplier is presented, by introducing Carry Save Adder (CSA) in partial product lines. The multiplier given in this paper is modeled using VHDL (Very High ...
Embedded

Guide to VHDL for embedded software developers: Part 3 – ALU logic & FSMs

As can be seen from the VHDL, we have defined a specific 16 bit bus inthis example, and while this is generally fine for processor design with afixed architecture, sometimes it is useful to have a ...
TechRepublic

VHDL Implementation of 8-Bit ALU

In this paper VHDL implementation of 8-bit Arithmetic Logic Unit (ALU) is presented. The design was implemented using VHDL Xilinx Synthesis tool ISE 13.1 and targeted for Spartan device. ALU was ...