c++ Programming Glossary: bus
Test Automation with Embedded Hardware http://stackoverflow.com/questions/115115/test-automation-with-embedded-hardware or might be code you wrote that reacts to messages on a bus for instance . This would be white box testing where you can..
How do I use Qt and SDL together? http://stackoverflow.com/questions/118659/how-do-i-use-qt-and-sdl-together use some kind of messaging to communicate I'd recommend d bus here . You can have SDL render into borderless window and your..
What happens when QueryPerformanceCounter is called? http://stackoverflow.com/questions/1723629/what-happens-when-queryperformancecounter-is-called I'm wondering if there is some shared resource on the bus that they all query What exactly happens when I call QueryPerformanceCounter.. cause overhead. Also remember that it can invoke a bus transfer so you may be seeing bus contention delays. Try using.. that it can invoke a bus transfer so you may be seeing bus contention delays. Try using SetThreadAffinityMask if possible..
Are multiple conditional operators in this situation a good idea? http://stackoverflow.com/questions/1917718/are-multiple-conditional-operators-in-this-situation-a-good-idea on conditional operators Vehicle new_vehicle arg 'B' bus arg 'A' airplane arg 'T' train arg 'C' car arg 'H' horse..
Is storing an invalid pointer automatically undefined behavior? http://stackoverflow.com/questions/3838855/is-storing-an-invalid-pointer-automatically-undefined-behavior since certain architectures will automatically throw a bus error or something if you do that. Can anyone point me to the..
What exactly is an 'aligned pointer'? http://stackoverflow.com/questions/4322926/what-exactly-is-an-aligned-pointer Trying to do so will immediately halt your program with a bus error. On the x86 architecture the CPU hardware instead handles..
Binary serialization/de-serialization in C++ and C# http://stackoverflow.com/questions/4677669/binary-serialization-de-serialization-in-c-and-c-sharp one is written in C#. Both are communicating via a message bus. I have a situation in which I need to pass objects from C to..
Atomicity in C++ : Myth or Reality http://stackoverflow.com/questions/5002046/atomicity-in-c-myth-or-reality aligned native types are atomic . As long as the memory bus is at least as wide as the type being read or written the CPU.. written the CPU reads and writes these types in a single bus transaction making it impossible for other threads to see them.. to uncached memory locations that fit within a 32 bit data bus The P6 family processors and newer processors since guarantee..
What happens when a computer program runs? http://stackoverflow.com/questions/5162580/what-happens-when-a-computer-program-runs retrive a few instructions it depends on the size of the bus at a time puts them in registers and executes them. I also know..
Can I force cache coherency on a multicore x86 CPU? http://stackoverflow.com/questions/558848/can-i-force-cache-coherency-on-a-multicore-x86-cpu doesn't begin execution before the value hits the memory bus. Edit There is a clflush instruction in SSE2 and up which according..
Using SSE instructions http://stackoverflow.com/questions/586609/using-sse-instructions the problem is memory bound or CPU bound. If the memory bus is the bottleneck SSE will not help much. Try simplifying your..
Finding out the CPU clock frequency (per core, per processor) http://stackoverflow.com/questions/8351944/finding-out-the-cpu-clock-frequency-per-core-per-processor very good at giving in depth information about the system bus speed memory timings etc. However is there a programmatic way.. run at the same rate unless you start messing with the bus speeds with SetFSB or something . For example on my Core i7.. it actually goes all the way into BIOS and does it's own bus speed x multiplier arithmetic. This requires having a database..
What does the “lock” instruction mean in x86 assembly? http://stackoverflow.com/questions/8891067/what-does-the-lock-instruction-mean-in-x86-assembly I knew lock instruction will cause CPU to lock the bus but I don't know when CPU frees the bus About the whole above.. CPU to lock the bus but I don't know when CPU frees the bus About the whole above code I don't understand how this code.. ordering guarantees. This may be achieved by asserting a bus lock but the CPU will avoid this where possible. If the bus..
SetupDiGetDeviceProperty http://stackoverflow.com/questions/3438366/setupdigetdeviceproperty 7600.16385.1 inc api devpkey.h include DEVPKEY_Device_BusReportedDeviceDesc from WinDDK 7600.16385.1 inc api devpropdef.h.. DEVPROPKEY name #endif INITGUID include DEVPKEY_Device_BusReportedDeviceDesc from WinDDK 7600.16385.1 inc api devpkey.h.. inc api devpkey.h DEFINE_DEVPROPKEY DEVPKEY_Device_BusReportedDeviceDesc 0x540b947e 0x8b40 0x45bc 0xa8 0xa2 0x6a 0x0b..
Async wait on file descriptor using Boost Asio http://stackoverflow.com/questions/4686127/async-wait-on-file-descriptor-using-boost-asio descriptor using Boost Asio I'm trying to integrate D Bus with my boost asio application. D Bus has an API that enumerates.. to integrate D Bus with my boost asio application. D Bus has an API that enumerates a set of Unix file descriptors mainly.. have something to be read I should inform the D Bus API so it can read them and do it's thing. Currently I'm doing..
|