Questions tagged [emulation]

For questions about emulation and emulators, where a computer program is emulating (imitating) the behavior of another program or hardware device.

An emulator is a system which is designed to perform the duties of a different system. An emulator is distinct from a simulator (an emulator is intended to replicate the external behaviour of a system, whereas a simulator replicates the internal behaviour). See:

Emulators are commonly used to allow programs written for one system to be run on a different system. This is desirable when developing for a wide variety of target platforms, or when maintaining old programs designed for deprecated hardware.

One type of emulator that emulates a computer is called a . These are used by companies so they can tests their apps on the emulator rather than on an actual hardware.

Examples of some emulators:

Questions in this tag should relate in some way to the implementation or usage of a computer system which is an emulator.

4400 questions
134
votes
7 answers

GPU Emulator for CUDA programming without the hardware

Question: Is there an emulator for a Geforce card that would allow me to program and test CUDA without having the actual hardware? Info: I'm looking to speed up a few simulations of mine in CUDA, but my problem is that I'm not always around my…
Narcolapser
  • 5,895
  • 15
  • 46
  • 56
128
votes
7 answers

Enabling WiFi on Android Emulator

How to enable WiFi on Android emulator? I have tried to find this but everyone is confusing WiFi with 3G.
salman khalid
  • 4,884
  • 4
  • 27
  • 33
122
votes
6 answers

Is it possible to install APK file if more than one emulators/devices are connected

I know how to install the apk file in to the emulator by command prompt and all that. But i want to know is it possible to install same apk file in to multiple emulator by giving any specific name ? Actually i have to test one apk file in to many…
Shreyash Mahajan
  • 23,386
  • 35
  • 116
  • 188
110
votes
10 answers

What's the difference between emulation and simulation?

Possible Duplicate: Simulator or Emulator? What is the difference? In simple understandable terms, what is the difference between the two terms? [I have already looked at this, this and this]
Lazer
  • 90,700
  • 113
  • 281
  • 364
79
votes
9 answers

Using Camera in the Android emulator

I wish to simulate camera in the android emulator using the webcam. Basically I need to only take photos with the camera in the emulator (live preview is not needed i.e if it makes it any easier) I followed the tutorial here which is the only one I…
Primal Pappachan
  • 25,857
  • 22
  • 67
  • 84
78
votes
9 answers

Intel X86 emulator accelerator (HAXM installer) VT/NX not enabled

I`m asking how to enable my VT/NX for my MacBook, when I try to use X86 emulator, it appears to me that VT/NX NOT ENABLED, it had never seem this when I used 10.9 system, after I update my MacBook to Yosemite, it appears to me. When I try to start…
DaCheng.Xu
  • 781
  • 1
  • 5
  • 5
76
votes
34 answers

Failed to launch emulator: Error: Emulator didn't connect within 60 seconds

I'm unable to debug using VSCode for Flutter. I'm using Windows and I'm trying to use an Android emulator. I have attempted to reinstall Flutter, Android SDK and VSCode to fix the issue, as well as tried setting environment variables. This is the…
f1t3
  • 761
  • 1
  • 5
  • 3
73
votes
10 answers

How to access localhost from a Genymotion android emulator?

I can not figure out how to access localhost from a Genymotion android emulator. By the way, Im using MAMP.
mownier
  • 1,719
  • 2
  • 13
  • 27
71
votes
2 answers

How does Linux emulator in Javascript by Fabrice Bellard work?

Today I had a jaw dropping moment, when I saw Linux emulator in Javascript: http://bellard.org/jslinux/ It compiles C programs, it has vi and emacs, it supports all shell commands, etc etc. How does it work?
Nikita Barsukov
  • 2,957
  • 3
  • 32
  • 39
71
votes
7 answers

How to get the sign, mantissa and exponent of a floating point number

I have a program, which is running on two processors, one of which does not have floating point support. So, I need to perform floating point calculations using fixed point in that processor. For that purpose, I will be using a floating point…
MetallicPriest
  • 29,191
  • 52
  • 200
  • 356
68
votes
7 answers

I get 'Command Not Found' when I try to run Android Emulator on Mac OS X

When I use the Mac OS X Terminal to navigate to the folder with my Android Emulator and type emulator, I get: command not found Here's what happens: $ emulator -bash: emulator: command not found How do I get it to work?
Kebman
  • 1,901
  • 1
  • 20
  • 32
66
votes
2 answers

How to remove the device's frame on Android Studio's emulators

I am making an android app on Android Studio and I have this emulator for Nexus S. When the emulator is running, it shows the frame of the device. I want the emulator to show the screen of the device only. I've tried looking in the settings but…
user5373121
63
votes
2 answers

Simulate user input in bash script

I am creating my own bash script, but I am stuck at the moment. Basically, the script would be used to automate server setup in CentOS. Some software normally asks the user to type a password. I want the script to put the password that I have…
Werulz
  • 751
  • 1
  • 6
  • 7
62
votes
3 answers

Using Google Chrome Dev tools on Android (emulator)

I need to debug CSS for some site running on the device under Android (in the common REPL mode). As I know it is possible to connect the device with the desktop via USB cable to do that. But the problem is I have no such a device (with Android). I…
61
votes
8 answers

How do I delete sample app from an android emulator?

Somehow, I have deleted the code for the sample apps from the workspace, but the apps still show up in the android emulator. How do I delete them?
yogsma
  • 10,142
  • 31
  • 97
  • 154