Intel x64 architecture manual

Intel® 64 and IA Architectures Software Developer’s Manual Volume 1: Basic Architecture NOTE: The Intel® 64 and IA Architectures Software Developer's Manual consists of seven volumes: Basic Architecture, Order Number ; Instruction Set Reference A-M, Order Number ; Instruction Set Reference N-Z, Order Number ; Instruction Set Reference, Order Number. The Intel® 64 and IA Architectures Software Developer's Manual consists of eight volumes: Basic Architecture, Instruction Set Reference A-M, Instruction Set Reference N-Z, Instruction Set Reference, System Programming Guide Part 1, System Programming Guide Part 2, System Programming Guide Part 3, and System Programming Guide Part 4. EFLAGS Register is extended to bit register RFLAGS, as described in section RFLAGS Register in Bit Mode in manual Basic Architecture: In bit mode, EFLAGS is extended to 64 bits and called RFLAGS. The upper 32 bits of RFLAGS register is reserved. The lower 32 bits of RFLAGS is the same as EFLAGS. x87 FPU, MMX.

Sun Microsystems introduced a bit version of its SPARC architecture in At the time, however, Intel was not a serious contender for high-end computers, and so the company was under less pressure to switch to 64 bits. Intel's first foray into bit computers were the Itanium processors, based on the IA64 instruction set. Intel® 64 architecture Requires a system with a bit en abled processor, chipset, BIOS and software. Per-formance will vary depending on the specific hardware and software you use. Consult your PC manufacturer for more information. Transition to bit Intel attempted radical shift from IA32 to IA64 () Completely new architecture (Itanium) Execute IA32 code only as legacy Performance disappointing AMD solution: "AMD64" () x, evolutionary step from IA32 Intel pursued IA64 Couldn't admit its mistake with Itanium.

Intel® 64 and IA Architectures Software Developer’s Manual Volume 1: Basic Architecture NOTE: The Intel® 64 and IA Architectures Software Developer's Manual consists of nine volumes: Basic Architecture, Order Number ; Instruction Set Reference A-L, Order Number ;. Title: Intel® 64 and IA Architectures Optimization Reference Manual Author: Intel Corporation Keywords: 64 architecture, IA, core processors, The Intel® 64 and IA Architectures Software Developer's Manual consists of eight volumes: Basic Architecture, Instruction Set Reference A-M, Instruction Set Reference N-Z, Instruction Set Reference, System Programming Guide Part 1, System Programming Guide Part 2, System Programming Guide Part 3, and System Programming Guide Part 4.