The Special Edition (SE) version of Swordfish is a free, fully functional and This version of the software (3.0.5.0) has had all the licensing restrictions removed and is now free for anyone to use. You can even create integrated circuits e.g. Some examples of macros include: counters, shift registers data registers. This enables you to create a hierarchy of digital objects, with each new level hiding the complexity of its implementation. The complex circuit can also be converted into a new logic element, and so on. The new logic element can be used as a building block in the construction of more complex circuits. This enables you to convert a circuit into a logic element itself. One of Digital Works most powerful features is the ability to create macros and add them to the parts centre. Counters, shift registers, data registers, drivers and more are available from the parts centre. You can also view a history of logic events using the logic history window. Output can be viewed using LED, 7 segment LED and numeric devices. Input to the circuit can be achieved using switches, clocks, sequence generators and interactive input devices. Digital Works also provides mechanisms for detecting race conditions and bus contention. You can also use tri-state and memory devices to construct systems with buses. Circuits can be composed of simple gates (AND, OR, NAND, NOR, XOR, XNOR, NOT) and simple flip-flops (D, RS and JK). Free updates and supplements via Internet.Digital Works is a graphical design tool that enables you to construct digital logic circuits and to analyse their behaviour through simulation.Sophisticated multi-state simulation supports high and low drive levels, "don't know" values, three-state and wired-AND logic.Built-in support for RAMs, ROMs and PLAs.Set arbitrary delay values on any device or pin.All primitive logic elements are scalable, allowing, for example, 56-input gates or 17-bit counters to be constructed as a single element.Thorough library of built-in primitive simulation elements for all common digital elements.Group any collection of signals into a single timing trace with value displayed in hex.Display any number of signals simulataneously in the timing diagram.Pop-up menus give you direct access to common commands from anywhere on the diagram.Special power and ground symbols automatically create connections and generate the correct simulation values.Create your own device symbols and customize their simulation function by defining an internal circuit using any existing components.Very simple diagram editing: most symbol placement and wire editing operations do not even require a menu selection.Bussing feature allows you to group any collection of signals into a single bus line.
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