Verilog & SystemVerilog RTL development.
Windows · Linux · Cloud
Digital Design Studio keeps RTL, ISA in Flow Navigator, ALcad and Agent in one application.
Develop Verilog and SystemVerilog, run supported RTL simulations, and use ISA, Evolve, Agent, ALcad and vFactory in Digital Design Studio. RTL and CAD keep dedicated interfaces for each kind of work.
Write
Edit .sv, .svh, .v, and .vh sources with module hierarchy and signal outlines nearby. Move from an instance to its source while keeping the surrounding design in view.
Navigate module instances and their source locations without losing the project structure.
Review inputs, outputs, and internal signals alongside the active source file.
In SystemC files, HintsBox shows a local outline and declaration suggestions, including sc_module classes. It does not resolve C++ semantics.
RTL simulation
The simulation runs on your PC and does not start a Cloud job. Digital Design Studio does not bundle the simulators. Running the simulators requires sign-in.
A testbench that reports a failure in its output is shown as Testbench reported a failure, even when the simulator exits normally. Previously it was shown as passed.
Analyze
Analysis is the shared result-inspection area for RTL and ISA work. Open Analysis from the left rail, choose a saved run, and select an artifact. The run list groups results by module.
Move between saved runs and their waveforms, schematics, performance results, and reports.
Perf reads perf.json for the selected run and displays the saved observations as metrics and charts.
Performance analysis
Compare compute throughput and memory bandwidth in the Roofline view.
Locate measured kernels against compute ceilings and memory bandwidth.
Choose the limits, kernels and labels shown alongside the run summary.
Recorded results
It presents available metrics, requirements, and missing sections. A UI verdict or estimate is a review aid, not independent timing closure, manufacturing approval, or formal signoff.
Compare WNS, TNS and failing paths on one scale for each recorded unit. Review saved timing, PPA and evidence values as recorded, without a calculated release verdict.
Ask
Agent answers in the AI panel and in its own window. When project reads are set to ask, it requests your approval before reading project files.
Search starts off for both Agent and Own API key. Agent does not grant an engine or permission that the selected host lacks.
ALcad
Choose ALcad workspaces from the workspace menu: Schematic, PCB Layout, 3D CAD, 3D Assembly and SI / PI Analysis. Wafer Process & Fab, which was under ALcad before, is now in vFactory. ALcad keeps its name and dedicated UI; available actions depend on the host and release, and the SI / PI workspace does not run a solver in this release.
Explore components and their connections on the schematic canvas.
Inspect the selected component and its circuit parameters.
vFactory is a new area next to DDS and ALcad for wafer processes and fabs. Explore vFactory
See how the work connects
Saved result tabs that are too narrow for the whole run name keep a short part that tells them apart, such as …1 and …2, and the tooltip shows the full name. Saved results with the same title show which run they belong to, also in search.
Select Live Run in the project navigation to inspect the run surface the selected host offers. Use Search windows to filter the project window list.
Usage shows the active allowance, remaining amount and reset for the selected organization. Weekly QUOTA uses seven-day cycles.
When the tab menu offers Split Editor Right, use it to place the source and its schematic or report side by side. Reports preserve the run context and expose artifact content.
In DDS, open Flow Navigator and choose the required function. Bring RTL/SystemVerilog development and ISA design into one workspace; ISA Design flows open from the Flow Navigator. ISA uses the Digital Design Studio shell, settings, tabs, and bottom panel.
Trace modules, ports, and nets through the schematic. Switch to the 3D hierarchy to see how the pieces of a larger design fit together.
Where features run
Some features run only on specific hosts. Where a host lacks one, Digital Design Studio says so instead of starting a run.
Choose where you work
Use the desktop app, open a Cloud workspace, or bring the CLI into your automation.
Work with local files in Digital Design Studio on Windows or Linux. On Windows, updates from 2.1.2 to later versions no longer ask you to restart Windows. Before the install starts, open files keep a recovery copy of unsaved changes. Work that cannot be kept, such as unsaved vFactory or ALcad work, is listed first, and the update continues only if you choose Update anyway.
Choose your downloadSign in to Altifigence and open your workspace from the browser. When you return to a Cloud window, its editors and an RTL schematic that is being prepared stay as they were instead of loading again. In production builds, the code downloaded for the Cloud start page before you sign in dropped from 1.18 MB to 0.72 MB (gzip), and for the project list from 1.25 MB to 0.79 MB.
Open CloudUse Altifigence CLI with scripts and CI workflows.
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