ARMv8An

ARMv8-A, also known as AArch64, is a 64-bit instruction set architecture (ISA) developed by ARM Holdings. It is the successor to the 32-bit ARMv7-A architecture and is designed to provide improved performance, efficiency, and security for modern computing devices. ARMv8-A introduces several new features and enhancements, including:

1. 64-bit general-purpose registers, allowing for larger address spaces and improved performance.

2. Enhanced virtualization support, enabling more efficient and secure virtual machines.

3. Improved security features, such as Memory Tagging Extension (MTE) and Pointer Authentication (PAC), to protect against various types of attacks.

4. Support for larger physical address spaces, up to 48 bits, which is sufficient for most modern applications.

5. Enhanced floating-point and SIMD (Single Instruction, Multiple Data) capabilities, providing better performance for multimedia and scientific computing applications.

ARMv8-A is widely adopted in various computing platforms, including servers, embedded systems, and mobile devices. Its design focuses on power efficiency, scalability, and security, making it a popular choice for a wide range of applications. The architecture is supported by a variety of operating systems, including Linux, Windows, and various real-time operating systems.