Update 7/31/2020: Windows 8.1 is long outdated, but technically supported through 2023. If you need to download an ISO to reinstall the full version of the operating system, you can download one from Microsoft here.
![Update Update](https://i.ytimg.com/vi/Lyq0Brlrw7U/maxresdefault.jpg)
If you are still using Microsoft Windows 8.1, we recommend you at least begin considering what OS you will use in the future. It’s mid-2020 and Win 8.1 will shuffle off the mortal coil in January 2023. You can still qualify for a free upgrade to Windows 10 if you own a valid Windows 8.1 license, despite the fact that Microsoft formally ended its upgrade program five years ago. Additionally, Windows 10 has the same system requirements as Windows 8.1, so if you can run the latter, you can also run the former.
If you are somehow still stuck on Windows 8.0 and do not want to go to the hassle of a full OS swap, we recommend running Windows Update immediately and downloading all available patches for your system, including the Windows 8.1 update, which will likely be offered to you by default. If you want to download just the Windows 8.1 update files, you can do so here.
Image Resizer for Windows 3.1.2 is available to all software users as a free download for Windows 10 PCs but also without a hitch on Windows 7 and Windows 8. Compatibility with this software may vary, but will generally run fine under Microsoft Windows 10, Windows 8, Windows 8.1, Windows 7, Windows Vista and Windows XP on either a 32-bit or 64. Windows 8 free download - Windows 10, PDF Reader for Windows 8, Windows 8 Codecs Pack, and many more programs.
The system requirements for Windows 8.1 and Windows RT 8.1 are nearly the same as the requirements for Windows 8—if your PC is already running Windows 8 (or Windows RT), in most cases, you can get the free update to Windows 8.1 (or Windows RT 8.1). May 05, 2016 Alternatives to HSPICE for Windows, Mac, Linux, Software as a Service (SaaS), Web and more. Filter by license to discover only free or Open Source alternatives. This list contains a total of 5 apps similar to HSPICE. List updated: 5/5/2016 7:00:00 PM. The HSPICE Documentation Set The HSPICE Documentation Set This manual is a part of the HSPICE documentation set, which includes the following manuals: Chapter 7, Library Encryption Describes the Synopsys Library Encryptor and how to use it to protect your intellectual property. Chapter 8, Converter Utility Describes how to convert output.
Original story below, from 2013:
Windows 8.1 has been released. If you’re using Windows 8, upgrading to Windows 8.1 is both easy and free. If you’re using another operating system (Windows 7, Windows XP, OS X), you can either buy a boxed version ($120 for normal, $200 for Windows 8.1 Pro), or opt for one of the free methods listed below. To download and install Windows 8.1 for free, follow the guide below.
How to download Windows 8.1 for free
If you don’t want to wait for October 17 or 18, there are two options for downloading Windows 8.1: You can obtain a copy (and a license key) from a friend/colleague with an MSDN, TechNet, or DreamSpark (student) subscription, or you can download a Windows 8.1 RTM ISO from your favorite file-sharing website (The Pirate Bay, Mega, etc.)
While we’re not going to write a guide on how to obtain Windows 8.1 RTM from non-official sources, we will at least tell you to check the SHA-1 hash of the ISO that you download to make sure that it’s legitimate. If you hit up the MSDN Subscriber Downloads page, and then click Details under the version that you’ve obtained from elsewhere, you’ll find the SHA-1 hash. If you then use File Checksum Integrity Verifier (FCIV) on the ISO, the hash should match. If it doesn’t, assume the ISO has been compromised and download another. (But do make sure that you’re checking the right SHA-1 hash on the MSDN website; your ISO might be mislabeled).
The other easier, and completely legal, option is to download the Windows 8.1 Preview from Microsoft. It’s not as snappy as the final (RTM/GA) build, though, and has quite a few bugs/missing features. Bear in mind that if you go down this road, upgrading to a real version of Windows 8.1 will require a few more steps (discussed in the next section).
How to install Windows 8.1 for free
Once you have the Windows 8.1 ISO on your hard drive, the installation process is painless. Before you begin, you should consider backing up your important files and documents, but it’s not really necessary. You should also ensure that you have plenty of free hard drive space (20GB+).
If you’re already running Windows 8 and you downloaded the RTM ISO from somewhere other than the Windows Store, you can install Windows 8.1 by mounting the downloaded ISO in Explorer by double-clicking it, and then running the installer. If you’re on Windows 7, XP, or (bless your soul) Vista, you’ll need to burn the ISO to a USB thumb drive or DVD, or mount the ISO using a third-party virtual drive tool, like Magic ISO.
If you already have Windows 8, and you waited for the official release date, installing Windows 8.1 is as simple as visiting the Windows Store and downloading the free update.
In both these cases, the upgrade process should be very smooth, with your apps and settings fully preserved. If you upgrade from Windows 8.1 Preview, however, you will lose your installed apps, unless you first run a cversion.ini removal utility.
Once you’ve installed Windows 8.1, you should check out our extensive collection of Windows 8.1 tips and tricks, and be sure to check our Windows 8.1 review and hands-on impressions to ensure that you’re making the most of all the new features.
Now Read:
Sebastian Anthony wrote the original version of this article. It has since been updated with new information.
Authors: Jinsik Yun, Jeannette Djigbenou, Dr. Dong S. Ha
HSPICE is one of the strongest SPICE simulator. It is famous for its accuracy and it's a de-facto standard upon which most semiconductor companies depend.
NOTE: If you are using Windows OS, you have to setup X-window system.
You are encouraged to setup X-window by installing CygwinX and PuTTY programs.
Here is the link where you can download CygwinX and PuTTY and find the installation guide: VT CVL supported software
You are encouraged to setup X-window by installing CygwinX and PuTTY programs.
Here is the link where you can download CygwinX and PuTTY and find the installation guide: VT CVL supported software
This tutorial shows hspice simulation of a CMOS inverter. A good tutorial on spice simulation is available here.
- Before you run your SPICE simulations in a new xterm or rxvt window, run the following UNIX command in your UNIX directory:
- And the UNIX cursor should change, for instance if your username is myname and your working directory is myworkdir, and you are using the machine fox, The cursor should change from:
to:
NOTE: For the rest of this document, the instructions will be based on the simulations for the TSMC 0.18um process. However, some alternate files for TSMC 0.25 um, 0.35um and HP 0.5um process will also be indicated.
1. Copy the following inverter netlist file and MOSFET model file into your working directory.
IBM 90 nm Coming Soon! | IBM 0.13 um inv_tr_013.sp for transient analysis. inv_fr_013.sp for frequency analysis. inv_dc_013.sp for DC analysis. ibm_0.13um_model for 0.13um process model. |
TSMC 0.18 um inv_tr_018.sp for transient analysis. inv_fr_018.sp for frequency analysis. inv_dc_018.sp for DC analysis. tsmc_018um_model for 0.18um process model. | TSMC 0.25 um inv_tr_025.sp for transient analysis. inv_fr_025.sp for frequency analysis. inv_dc_025.sp for DC analysis. tsmc_0.25um_model for 0.25um process model. |
TSMC 0.35 um inv_tr_035.sp for transient analysis. inv_fr_035.sp for frequency analysis. inv_dc_035.sp for DC analysis. tsmc_035um_model for 0.35 um process model. | HP 0.5 um inv_tr_050.sp for transient analysis. inv_fr_050.sp for frequency analysis. inv_dc_050.sp for DC analysis. hp05um_model for 0.5 um process model. |
22nm Predictive Technology Model from ASU: inv_tr_22.sp for transienct analysis. inv_fr_22.sp for frequency analysis. inv_dc_22.sp for DC analysis. PTM_22nm_Metal_Gate_model for 22 nm process model. | Other spice models can be found on the MOSIS web page and the PTM website. |
Note that the SPICE (.sp) toplevel file must contain a line, usually near the end, saying:
.option post
This case-insensitive line may specify other options in addition, such as:
.option POST NOMOD accurate
but the option POST must be specified!
CMOS Inverter Circuit
2. To perform hspice simulation on the transient analysis file, type the command:
hspice inv_tr_018.sp > inv_tr_018.lis
Four files (inv_tr_018.lis, inv_tr_018.ic0, inv_tr_018.st0, inv_tr_018.tr0) are created. View inv_tr_018.lis, inv_tr_018.ic0 and inv_tr_018.st0 to examine simulation results and status.
Make complicated projects manageable. OmniPlan 4 gives you the power to monitor interval and effort tracking, customize resources, and continuously improve your processes. Dec 05, 2016 OmniPlan for Mac 3.4.1 June 2, 2016. Requires OS X 10.10. OmniPlan 3.4.1 is a minor update that addresses a printing regression and a crash. Printing — Date headers are once again included when printing the Gantt Chart. Stability — Opening the Display Preferences on a Mac running OS X 10.10 no longer triggers a crash. Oct 11, 2015 OmniPlan 3.14.1 is a minor update focused on bug fixes. In-App Purchase — Mac App Store customers who previously upgraded from Standard to Pro are no longer blocked from accessing Pro features. Omni Automation PRO — Fixed a bug that could prevent OmniPlan from recognizing Omni Automation plug-in bundles. OmniPlan Pro 3.4 – Professional-grade project management. May 27, 2016 With OmniPlan Pro, you can create logical, manageable project plans with Gantt charts. In OmniPlan, resource management is primarily accomplished in Resource View (the second button in the toolbar’s view switcher). This chapter describes the functions and features of the view; the Task and Resource inspectors also contribute to resource organization. Omniplan 3.4 for mac.
3. To plot the results, type the command:
CScope
- CScope (CosmosScope) window appears. Select File->Open->Plotfiles
The Open Plotfiles window is defaulted to display PL/AWD files. Set the Files of Type option to display HSPICE (*.tr*,*.ac*,*.sw*,*.ft*) files. File inv_tr_018.tr0 is then listed. Select inv_tr_018.tr0 and click open. - “Signal Manager” window appears. Click the inv_tr_018.tr0 item. Another window entitled “inv_tr_018.tr0” contains the node names and measured values to be plotted. Double click 'in' and 'out' signals. Waveforms show up in CScope window
- To update Axis information, double-click on an axis and modify units or zoom factors.
- To Export the Waveform into an image format, go to File->Export Image and save the waveform in an image format of choice.
- The output waveforms for the transient analysis of the inverter in 0.18um process looks like this.
4. To measure Power Dissipation Characteristics:
- Add a measure statement to your spice netlist to measure average power:
.measure tran avgpwr AVG power from=1ns to=20ns
5. To measure max power:
Hspice Software Free Windows 8 1
.measure tran peakpwr MAX power from=1ns to=100ns
![Hspice Software Free Windows 8 Hspice Software Free Windows 8](https://www.autodesk.com/products/eagle/blog/wp-content/uploads/2017/10/op-sim-output2.png)
- Add several different size output load capacitances:
- cload out 0 20fF
.alter
cload out 0 50fF
.alter
cload out 0 200fF - The netlist file with power-dissipation measurement: inv_power_018.sp.
- For HP 0.5um / TSMC 0.35um technologies, the corresponding files are inv_power_050.sp and inv_power_035.sp, respectively
- Compile the netlist file:
- Type:
grep ' avgpwr=' inv_power_018.lis|tail -3 - The average power will be output for each capacitance value. Take the average of the three values to get the average power dissipated.
- Repeat the above for peak power:
grep ' peakpwr=' inv_power_018.lis|tail -3 - Final Values: Average Power Dissipation: 19.44 uW
- Peak Power Dissipation: 452.23 uW
6. To measure Nodal Capacitance:
- Replace your .option statement with the following: (captab = capacitance table)
- .option captab post
- This will output the maximum capacitance for each node in your circuit onto the list file (or stty)