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AArch64 or ARM64 is the 64-bit Execution state of the ARM architecture family. It was first introduced with the Armv8-A architecture, and has had many extension updates. [ 1 ]
In Debian Linux and derivatives such as Ubuntu and Linux Mint, armhf (ARM hard float) refers to the ARMv7 architecture including the additional VFP3-D16 floating-point hardware extension (and Thumb-2) above. Software packages and cross-compiler tools use the armhf vs. arm/armel suffixes to differentiate. [138]
AMD64 (also variously referred to by AMD in their literature and documentation as “AMD 64-bit Technology” and “AMD x86-64 Architecture”) was created as an alternative to the radically different IA-64 architecture designed by Intel and Hewlett-Packard, which was backward-incompatible with IA-32, the 32-bit version of the x86 architecture.
The calling convention of the System V AMD64 ABI is followed on Solaris, Linux, FreeBSD, macOS, [26] and is the de facto standard among Unix and Unix-like operating systems. The OpenVMS Calling Standard on x86-64 is based on the System V ABI with some extensions needed for backwards compatibility. [27]
Real-time Linux : GNU GPLv2: open source: general purpose: x86, x86_64, RISC-V, ARM64 and LoongArch (ARM and POWER in the -rt branch) [1] RedHawk Linux RTOS Proprietary: closed hardware-in-the-loop, software-in-the-loop, general purpose active Intel, AMD, ARM, NVIDIA Drive, NVIDIA Jetson Orin REX OS: Proprietary: closed, available with license ...
The 64-bit version of the x86 architecture, known as x86-64, AMD64, and Intel 64, has two calling sequences in common use. One calling sequence, defined by Microsoft, is used on Windows; the other calling sequence, specified in the AMD64 System V ABI, is used by Unix-like systems and, with some changes, by OpenVMS. As x86-64 has more general ...
An instruction set architecture (ISA) is an abstract model of a computer, also referred to as computer architecture.A realization of an ISA is called an implementation.An ISA permits multiple implementations that may vary in performance, physical size, and monetary cost (among other things); because the ISA serves as the interface between software and hardware.
ARM64 GAS: GNU Project: Yes GNU GPL: various Yes TCCASM: Fabrice Bellard: Yes GNU LGPL: Unix-like, Windows: Yes VASM Volker Barthelmann, Frank Wille No Free various No FASMARM: revolution, Tomasz Grysztar: Yes Simplified BSD with weak copyleft: Windows, DOS, Linux, Unix-like: No ARMIPS Kingcom Yes MIT: various No