Deftun MSRX6 Smallest USB Magnetic Stripe Credit Reader Writer Encoder Portable 3 Tracks 1/3 Size of MSR206

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Feature bit CPUID Fn0000_0001_ECX[31] has been reserved for use by hypervisors to indicate the presence of a hypervisor. Invariant TSC - TSC ( Time Stamp Counter) rate is guaranteed to be invariant across all P-states, C-states and sop grant transitions. On early AMD K5 ( AuthenticAMD Family 5 Model 0) processors only, EDX bit 9 used to indicate support for PGE instead. A simpler way to interpret this information is that the last bit (bit number 0) of the x2APIC id identifies the SMT/hyperthreading unit inside each core in our example. Descriptor 76h is listed as an 1 MByte L2 cache in rev 37 of Intel AP-485, [58] but as an instruction TLB in rev 38 and all later Intel documentation.

Descriptor 49h indicates a level-3 cache on GenuineIntel Family 0Fh Model 6 (Pentium 4 based Xeon) CPUs, and a level-2 cache on other CPUs. For each of the four registers (EAX,EBX,ECX,EDX), if bit 31 is set, then the register should not be considered to contain valid descriptors (e. IA32_HWP_REQUEST of idle logical processor ignored when only one of two logical processors that share a physical processor is active. The output values are not passed using reference-like macro parameters, but more conventional pointers.The top 64 bits (given in EDX:ECX) are a bitmap of which bits can be set in the XFRM (X-feature request mask) - this mask is a bitmask of which CPU state-components (see leaf 0Dh) will be saved to the SSA in case of an AEX; this has the same layout as the XCR0 control register. For this reason, it is recommended to zero out EBX and ECX before executing CPUID with a leaf index of 1. As of 2013 [update] AMD does not use these leaves but has alternate ways of doing the core enumeration.

EBX provides a bitmap of bits that can be set in the MISCSELECT field in the SECS (SGX Enclave Control Structure) - this field is used to control information written to the MISC region of the SSA (SGX Save State Area) when an AEX (SGX Asynchronous Enclave Exit) occurs.In older documentation, this bit is often listed as a " Hyper-threading technology" [47] flag - however, while this flag is a prerequisite for Hyper-Threading support, it does not by itself indicate support for Hyper-Threading and it has been set on many CPUs that do not feature any form of multi-threading technology. If the Family ID field is either 6 or 15, the model is equal to the sum of the Extended Model ID field shifted left by 4 bits and the Model field. The x2APIC id space is not continuously mapped to logical processors, however; there can be gaps in the mapping, meaning that some intermediate x2APIC ids don't necessarily correspond to any logical processor.

The 103 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products.Text ; namespace X86CPUID { class CPUBrandString { public static void Main ( string [] args ) { if ( ! You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice. Sub-leaves 2 and up are used to provide information about which physical memory regions are available for use as EPC (Enclave Page Cache) sections under SGX. To enable fast (non-serializing) access mode for the IA32_HWP_REQUEST MSR on CPUs that support it, it is necessary to set bit 0 of the FAST_UNCORE_MSRS_CTL( 657h) MSR. On IDT WinChip CPUs ( CentaurHauls Family 5), the extended leaves C0000001h-C0000005h do not encode any Centaur-specific functionality but are instead aliases of leaves 80000001h-80000005h.