- #CAT PROC CPUINFO VIRTUAL ADDRESS 64 BIT#
- #CAT PROC CPUINFO VIRTUAL ADDRESS GENERATOR#
- #CAT PROC CPUINFO VIRTUAL ADDRESS FULL#
More extended AMD flags CPUID level 0x80000001, ecx flags VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001 flags
#CAT PROC CPUINFO VIRTUAL ADDRESS GENERATOR#
Read Random Number from hardware random number generator instruction Save Processor Extended States, also provides XGETBY,XRSTOR,XSETBY bit count)Īdvanced Encryption Standard (New Instructions) Return the Count of Number of Bits Set to 1 instruction (Hamming weight, i.e. Move Data After Swapping Bytes instruction Monitor/Mwait support (Intel SSE3 supplements) Perform a Carry-Less Multiplication of Quadword instruction - accelerator for GCM) See also Wikipedia and table 2-26 in Intel Advanced Vector Extensions Programming Reference flags Intel-defined CPU features, CPUID level 0x00000001 (ecx) Transmeta-defined CPU features, CPUID level 0x80860001 flags 64-bit capable)ģDNow! (AMD vector instructions, competing with Intel’s SSE1) Long Mode (x86-64 amd64, also known as Intel 64, i.e. SYSCALL (Fast System Call) and SYSRET (Return From Fast System Call) See also Wikipedia and table 2-23 in Intel Advanced Vector Extensions Programming Reference flags Pending Break Enable (PBE# pin) wakeup supportĪMD-defined CPU features, CPUID level 0x80000001 Intel Itanium Architecture 64-bit (not to be confused with Intel’s 64-bit x86 architecture with flag x86-64 or “AMD64” bit indicated by flag lm) Page Global Enable (global bit in PDEs and PTEs)ĬMOV instructions (conditional move) (also FCMOV)ĭebug Store (buffer for debugging and profiling instructions)ĪCPI via MSR (temperature monitoring and clock speed modulation)Īutomatic clock control (Thermal Monitor) Physical Address Extensions (support for more than 4GB of RAM)ĬMPXCHG8 instruction (64-bit compare-and-swap) Both 64-bit Linux and 64-bit Windows support 48-bit addresses, which translates to 256TB of virtual address space, about 65,000 times the size of 32-bit address space-more than enough space for today’s typical application. Different 64-bit operating systems on different processors use varying numbers of bits to represent an address.
#CAT PROC CPUINFO VIRTUAL ADDRESS FULL#
If we represented memory addresses with a full 64 bits, virtual address space would be about 4 billon times the size of 32-bit address space! However, such a large address space isn’t needed today, so 64-bit operating systems use a smaller number of bits to represent addresses. With the arrival of 64-bit processors and operating systems came the potential for much, much larger address spaces.
#CAT PROC CPUINFO VIRTUAL ADDRESS 64 BIT#
I was reading a book that said 64 bit systems don't typically use 64 bits to address virtual memory because it isn't necessary. public IP addresses or hostnames, account numbers, email addresses) before posting!ĭoes this sidebar need an addition or correction? Tell me here Note: ensure to redact or obfuscate all confidential or identifying information (eg. If you fix the problem yourself, please post your solution, so that others can also learn.
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