In computing, x86 is the generic name given to the family (architecture) processors based on Intel 8086 by Intel Corporation.

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I keep getting the BSOD. how do I trace what application / driver is causing it?

I get a APC_INDEX_MISMATCH error and it says it is dumping memory. Where is the dump sent? More importantly how do i scan it to find out who is causing the BSOD?
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1answer
598 views

What CPU is good for single-threaded performance?

I have an app, which is single-threaded. The source code is not available. The people who managed it before me didn't really understand the whole "single-threaded" business and bought a ridiculously ...
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1answer
1k views

Understanding the nop byte(s)

Ok, so I was reading through the AMD64 manuels and knowing that nop is really an xchg eax, eax, I looked at the xchg and found something interesting, that it seems a byte can be encoded into the ...
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1answer
542 views

“nop; jmp short” vs. “jmp short; nop”

Ok, first let me get this straight: This is not about micro optimization. But, I know in bootloaders on the partition, a lot use the jmp short; nop coding. But it is to my understanding that the less ...
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0answers
137 views

Why Windows XP reports that I have all 10 USB ports available in my laptop, when the reality is I can only use half of them?

I've made an attempt recently to understand how USB works inside of my laptop. My laptop is X61T from Lenovo and it has 3 USB ports on the back of the chassis. Intel documentation states that the ...
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1answer
2k views

Maximum number of digits in a float - 32-bit

I'm making a script that processes PI in PHP. I figured that there is a limit of 13 digits that PHP can process. I tried to find solutions on the internet, and was able to turn this number down, but ...
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1answer
1k views

How can I calculate the RAM Performance of two latches?

How do you calculate the relative performance of PC RAM? For example, what is the relative performance of the following: G.Skill Ripjaws Z 8 x 4GB Kit, DDR3-2133, CL9-11-10-28@1.65V G.Skill Ripjaws ...
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2answers
577 views

Understanding 8086 instruction encoding

I am trying to understand 8086 instruction encoding. Even though I found a general instruction and a bulky reference I still don't get it. Could you please explain me how the following "translations" ...
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1answer
689 views

TrustedInstaller Preventing Deletion of Files/Folders

I'm looking to free up space on my computer by deleting some unnecessary files and folders I found in Program Files (x86). A problem I came across was a "Folder Access Denied" where it stated that ...
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3answers
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How to install OpenWRT on an x86 computer with SATA hard drive

I've tried to install OpenWRT Backfire 10.03.1-rc6 x86_generic combined ext2 on my x86 PC, but the boot process stops while "waiting for root device /dev/sda2". Forums have advised me to build a ...
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2answers
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Windows 7 installation using Windows PE

Is it possible to install Windows 7 (64-bit) using Windows PE (32-bit)? I am following the guide available here.
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0answers
1k views

iLOM Boot device SUN X4170

I have configured the boot device to CD-ROM but whenever I reboot the server, it defaults to boot_device=default. Pressing F2/F8 during POST does not bring the BIOS setup. set boot_device=cdrom Set ...
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1answer
962 views

When the term 'x86' is used, does it always refer to 32-bit?

When the term 'x86' is used, does it always refer to 32-bit? And is it only about Intel processors?
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1answer
182 views

Why is the Bluetooth UI different on two Windows 7 systems?

I have two Windows 7 systems, one is Windows 7 x86, the other is Windows 7 x64. When my BT device connect to my Windows 7 x86 system, it has a nice UI with all the functions my device support; When ...
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1answer
896 views

Checking kernel memory usage

How would I know the kernel memory usage?
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2answers
607 views

Windows 7 64-bit - More compatibile with 32-bit apps than previous Windows?

I'm thinking of updating my system to an x64 one. I've previously heard that this is far more trouble than it's worth (unless you're running lots of x64 optimized software) as you would have lots of ...
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3answers
5k views

Installing 32 bit app to c:\program files in 64 bit Windows 7?

I have a custom built 32-bit app that I'm trying to install. When I ran the installer (ol' setup.exe) it installed to Program Files(x86) as all good 32 bit apps seem to. Unfortunately it looks like ...
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7answers
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Why does Windows 7 x64 work faster than an x86 edition on my PC?

Why does Windows 7 x64 work faster than an x86 edition on my PC even though I mostly use x86 things in it? What's wrong with me, and what am I missing? Majority of the things I use is x86 (e.g. DAWs, ...
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2answers
3k views

Install VLC on Windows 7 x64

How Can I install VLC on an x64 bit version of Windows 7? I have checked the compatibility modes and I do not see an x86 version. I have tried running is under XP and Vista with no luck.
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3answers
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Is it possible to run an x86 binary on an ARM processor?

Is it possible to convert/recompile an already compiled x86 binary into an ARM binary? I'm using a BeagleBoard with a command-line Ubuntu (Maverick) and want to run a Ventrilo server but the x86 ...
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2answers
829 views

Why does installing Snow Leopard on a x86 machine require patching the DSDT?

I have seen various articles that describe how to install various versions of MacOs on x86 laptops from HP, Dell, etc. Many of them refer to a need to patch the DSDT, and even recommend a gui DSDT ...
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1answer
777 views

Is my Georgia font messed up?

I've seen a growing trend in websites to use the "Georgia" font face, with serif. This has been especially noticable for me since my computer decided to render Georgia like this (Twitter example) I ...
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2answers
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How can I install Chrome OS to a CD so I can install it on an x86 machine

The x86 machine is Sun hardware and it is currently running Solaris and it has a GRUB menu. I would like to preserve my existing Solaris OS if convenient.
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1answer
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Any way to run older versions of OS X on newer Macs? [duplicate]

Possible Duplicate: Installing Tiger on a Snow Leopard MacBook I would like to be able to run OS X 10.3 for the purposes of software testing on a modern (x86) Mac. I'm aware of emulators ...
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2answers
2k views

Install and run 32 bit on 64 bit machine

I want to make sure that on 64-bit Windows, 32-bit application can be installed/run without any issues? And it is guaranteed by Windows backward compatibility? For example, any application (e.g. ...
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2answers
296 views

Installing Ia32build (Intel assembler) in ubuntu

I am looking for a assembler, in my college there is a ia32build assembler. I have tried searching it in Google, but I can't find it. I have x86 processor and I want to install it in Ubuntu 10.4. ...
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2answers
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How does ARM Cortex A8 compare with a modern x86 processor

I was wondering how does a modern ARM chip based on ARM Cortex A8 compare, in clock-for-clock performance and capability, to a modern x86 chip such as a Core 2 Duo or Core i5? I realise due to the ...
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6answers
2k views

Does RAM access slow-down CPU?

yeastarday I was thinking, when todays x86 CPU wants to acess memory there is some speed gap between them. Usually RAM operates at 1333MHz in case of some new Intel CPUs. But CPU itself works at about ...
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1answer
629 views

x86 exceptions and flags

please, I know that when you for example divide by zero, the aproptiate flag is set in CPU flag register. But today I read that there are special interrupt vectors (I think the first 16 in IVT) that ...
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2answers
371 views

Intel data bus of Intel 80486 and above CPUs

Why do Intel 80486 and above CPUs have a double 32-bit internal data bus? ALU is still 32 bits wide, so what is the extra 32-bit bus for?
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2answers
6k views

What does “cpuid level” mean?

For an example, I put just output from 1 core of a 16 core machine. What does the output mean by "cpuid level" of "6"? Also, what do "bogomips" of "5992.10" and "clflush size" of "64" mean? ...
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2answers
795 views

Google Android OS on x86?

How can I install Google's Android OS on an x86 platform? Are there any prerequisites for doing this?
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1answer
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Windows 7 Installation Folder: x86, x64 and another info

I've downloaded a lot of Windows 7 versions (release candidates, trial, x64 and x86, etc). The bad part is that the downloaded iso files don't have clear names, so I cannot to know wich version is ...
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1answer
2k views

Confusion about software for x86, x86_64 and x64

do softwares meant for x86, install on x86_64 and x64. I am focusing on linux. What problems can occur. I have never been comfortable with the differences. Could you explain?
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5answers
201 views

When should I choose an x64 version of a vendor's application?

I have Windows 7 x64 (I wanted more than 4GB of RAM), and I'm not talking about drivers here - I'm talking about installable applications. If a vendor offers both an x86 and x64 version of their ...
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2answers
914 views

what's the difference between x58 and x86 architectures?

I've been reading a bit about the i7 chipset and wondered about this x58 architecture. What does that mean exactly? How different is it from x86?