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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.

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Overflow flag cleared after SBC with overflow in 6502 emulation?

I've "finished" emulating my 6502 processor, and I'm in the testing phase right now. Being the beginner that I am, I've been stuck on this one issue for a couple of hours already. I'm following an NES test which basically is just a homebrew ROM and…
ZimZim
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Android emulator unfortunately HelloFacebookSample has stopped

I am a new to android APP. I download facebook sdk for android (https://developers.facebook.com/android/). Everything is fine except running in emulator. Everything samples in SDK cannot rightly be ran and a error of "unfortualtely, XXX has stopped"…
kwunlyou
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Branch-on-condition instruction of the 6502 with signed bytes?

I'm making a 6502 emulator (and after that I'll emulate the other NES components around it to have a fully functional NES emulator) and I came across the branch-on-condition instruction (relative). Now, what I'm wondering about is, is the byte…
ZimZim
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Is there a USB device descriptor to determine if a device is HID or keyboard emulation?

Does anyone know how to determine from the USB device descriptor or other USB descriptors if a USB device is HID or keyboard emulation? I'm looking to interface to a family of magtek magcard swipe readers and they can be configured to operate as HID…
Steve
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Cannot access internet on android emulator?

I have been trying to run internet on the android emulator but with no success yet. I have tried most of the things i.e. trying to run with dns-server option argument, adding proxy configuration details in APN settings. It does make internet work on…
thefrugaldev
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Using char as an unsigned 16 bit value in Java?

I need an unsigned 8 bit integer in Java, and char seems to be the only thing close to that. Although it's double the size, it's unsigned which makes it practical for what I want to use it for (writing a basic emulator which requires unsigned…
ZimZim
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Android emulator starting error

**In Starting of Emulator casue problem
** Starting emulator for AVD '4.2atom' Failed to create Context 0x3005 emulator: WARNING: Could not initialize OpenglES emulation, using software renderer. could not get wglGetExtensionsStringARB could…
user2025232
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Flash Builder 4.6: Testing gestures without the device

I'm new at developing a Flex app for mobile,I just need to know is there any way to test/debug gestures like swipe on the android emulator that comes with Flash Builder 4.6. I saw people using the official Android Emulator for testing, are there…
Antipirina
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Windows Mobile 6 emulator

I am developing some applications in Windows Mobile 6 on Visual Studio 2008, and I need to show some information in Hebrew, but my emulator doesn't show that language. Instead it shows very strange characters. How do I set Hebrew font in my…
nisnis84
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Reducing qemu snapshot file size

I have an Android snapshots file that is automatically created by the android AVD manager when I define an AVD. When I launch the emulator for the first time, the Android emulator stores the system state and the snapshot file size grows to nearly…
Andrea
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Run android emulator faster - nexus 4 configuration

I found some ideas how to run android emulator faster, but for Nexus 4 configuration still it doesn't work correctly. My PC: AMD Phenom II X4 955 (4 x 3,20Ghz) 4 GB ram memory ATI 5750 Windows 7 64bit Virtual Device Configuration: Name: Nexus 4…
mobile86
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How to Connect Windows Phone 8 emulator to internet through 3g usb modem?

I am trying to connect Windows phone 8 emulator to internet. Android emulator and Windows Phone 7 emulator connect to Internet by sharing host Internet connection, but Windows Phone 8 emulator introduced a new model for networking. It uses Hyper-V…
Mohamed El-Nakeep
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Python programming: emulate network and debug

I learn network programming on Python: write client-server and client-client software with TCP, UDP, ICMP, ARP, etc protocols. I need a tool for emulating network with N hosts with following capabilites: Lightweight software that can create N (2,…
lansman
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Low level programmatic keyboard emulation

I bought a physical button and hooked it up to my computer, using the Arduino it communicates over USB serial to a C++ program I'm writing. Now I want to make the button simulate a keypress on my computer so I could use it as an alternative…
user1091566
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How to debug Android Emulator?

I want to debug Android emulator source code in order to get deeper understanding of the simulator. It would be great if I can debug with Eclipse. I have found just a little information about Android emulator source code. Any help would be…
Tran Dung
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