網頁Intel® 64 and IA-32 Architectures Software Developer’s Manual Volume 2A: Instruction Set Reference, A-M NOTE: The Intel 64 and IA-32 Architectu res Software Developer's Manual consists of five volumes: Basic Architecture, Order Number 253665;Instruction Set ...

網頁The original specification for a processor architecture extending the x86 processor and instruction set to 64 bits, named AMD64, was introduced by AMD in 2000. The first AMD64 processor, the Opteron, was released in 2003. Intel found itself following AMD's lead and developed an AMD64-compatible architecture, eventually given the name Intel 64.

網頁The instruction pointer register becomes 64 bits. The EFLAGS register is extended to 64 bits wide, and is referred to as the RFLAGS register. The upper 32 bits of RFLAGS is reserved. The lower 32 bits of RFLAGS is the same as EFLAGS. See Figure 3-2. XMM registers – There are 16 XMM data registers for SIMD operations.

網頁Intel Architecture Software Developer’s Manual Volume 2: Instruction Set Reference NOTE: The Intel Architecture Software Developer’s Manual consists of three volumes: Basic Architecture, Order Number 243190; Instruction Set Reference, Order Number 243191

網頁Instruction Set 64-bit Instruction Set Extensions Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 Idle States Yes Enhanced Intel SpeedStep® Technology Yes Thermal Monitoring Technologies Yes Security & Reliability Intel® AES New Instructions Yes ‡ No ‡ ...

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• x architecture processors ·
• Hardware acceleration in other architectures ·
• Notes

網頁The geek suite is intended for deeper research of x86 architectures' instruction set. This includes geek32, geek64, and geek editions (by opcode) and geek32-abc, geek64-abc, and geek-abc editions (by mnemonic). More on the purpose and use of this suite see close below. Don't get confused by geek (-abc) and coder (-abc) editions.

網頁First, your processor is a 64-bit processor. If Intel says it supports 64-bit, it is a 64-bit processor. 64-bit Intel processors like this one have both a 32-bit instruction set and a 64-bit instruction set. Second, the reason your system says it can’t run 64-bit programs is probably caused by the fact that your syst Continue Reading

網頁In 64-bit mode, the instruction’s default operation size is 32 bits. Using a REX prefix in the form of REX.R permits access to additional registers (R8-R15). Using a REX prefix in the form of REX.W promotes operation to 64 bits. See the summary chart at the beginning of this section for encoding data and limits. Operation ¶