As we all know, the British company ARM is a leader in the world of embedded microprocessors. ARM has always developed its own microprocessor core architectures and then licensed the intellectual property of these architectures to various chip manufacturers. The streamlined CPU architecture, efficient processing capabilities, and successful business model have led ARM to achieve … Read more
Overview of ARMv8 Architecture The ARMv8 architecture includes 32-bit and 64-bit execution states, introducing the ability to execute with 64-bit wide registers while providing backward compatibility mechanisms to allow existing ARMv7 software to run. • AArch64: The 64-bit execution state in ARMv8. • AArch32: The 32-bit execution state in ARMv8, which is nearly identical … Read more
As shown in the figure, the green parts are all the v7-A architecture, and the blue ones are the v8-A architecture, basically the green supports both 32 and 64 bits. Except for A32, which only supports 32 bits. On the right side of each part, for example, the most efficient A15-A73 at the top is … Read more