Four 32-bit integer operations in parallel.Two 64-bit integer operations in parallel.You can do operations on 128-bit integers, but you can also take advantage of their ability to do operations in parallel: Use them for floating-point and integer arithmetic. I haven’t used them in 64-bit programming. RIP is the instruction pointer and RFAGS is the flags register. R0B.R7B have aliases AL, CL, BL, DL, SPL, BPL, SIL, DIL, respectively.R0W.R7W have aliases AX, CX, BX, DX, SP, BP, SI, DI, respectively.R0D.R7D have aliases EAX, ECX, EBX, EDX, ESP, EBP, ESI, EDI, respectively.R0.R7 have aliases RAX, RCX, RBX, RDX, RSP, RBP, RSI, RDI, respectively.
GTA V UNITY MENU 64 BITS
These are 64 bits wide and used for integer arithmetic and logic, and to hold both data and pointers to memory. The following diagram is taken directly from Chapter 3 in this volume:Īpplication Programmers generally use only the general purpose registers, floating point registers, XMM, and YMM registers. The basic architecture of the x86-64 is described in Volume 1 of the System Developer’s Manual.
The following notes briefly summarize the latter architecture only. The two massively popular architectures IA-32 and x86-84 are so common, they are described in a single set of manuals. They in no way serve as a substitute for reading Intel’s manuals. These notes summarize a few items of interest about these two ISAs. (Actually Intel 64 was invented by AMD, who called it x86-64). The IA-32 is the instruction set architecture (ISA) of Intel’s most successful line of 32-bit processors, and the Intel 64 ISA is its extension into 64-bit processors.
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