What is ARMv7 architecture?

ARM (stylised in lowercase as arm, previously an acronym for Advanced RISC Machines and originally Acorn RISC Machine) is a family of reduced instruction set computing (RISC) architectures for computer processors, configured for various environments.

How many registers are there in ARMv7?

37 registers
ARM processors, with the exception of ARMv6-M and ARMv7-M based processors, have a total of 37 registers, with 3 additional registers if the Security Extensions are implemented, and in ARMv7-A only, 3 more if the Virtualization Extensions are implemented. The registers are arranged in partially overlapping banks.

What is the ARM architecture used in ARM Cortex M4 devices?

ARM Cortex-M4 microcontrollers are based on ARMv7 architecture. Hence, Cortex-M4 MCUs support thumb-2 instruction set architecture. Thumb-2 instructions support a mixture of 16-bit and 32-bit instructions.

Is the ARMv7-M architecture reference manual provided as is?

Your access to the information in this ARM Architecture Re ference Manual is conditiona l upon your acceptance that you will not use or permit others to use the information fo r the purposes of determining whether implementations of the ARM architecture infringe any third party patents. This ARM Architecture Reference Manual is provided “as is”.

What kind of address space does ARMv3 have?

Architecture versions ARMv3 to ARMv7 support 32-bit address space (pre-ARMv3 chips, made before Arm Holdings was formed, as used in the Acorn Archimedes, had 26-bit address space) and 32-bit arithmetic; most architectures have 32-bit fixed-length instructions.

When did the ARMv8-A architecture come out?

Released in 2011, the ARMv8-A architecture added support for a 64-bit address space and 64-bit arithmetic with its new 32-bit fixed-length instruction set.

Which is the M profile architecture for arm?

Armv8.1-M takes the Armv8-M architecture to new performance levels without compromising the ease of software development and the richness of Arm’s third-party ecosystem. The new architecture includes the M-Profile Vector Extension (MVE) that provides major uplift in levels of machine learning and signal processing performance.