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Since 1995, various versions of the ARM Architecture Reference Manual (see § External links) have been the primary source of documentation on the ARM processor architecture and instruction set, distinguishing interfaces that all ARM processors are required to support (such as instruction semantics) from implementation details that may vary ...
ARM licensed a number of Hitachi's patents on aspects of the instruction design and used them to implement their Thumb instructions. ARM processors with a "T" in the name included this instruction set in addition to their original 32-bit versions, and could be switched from 32- to 16-bit mode on the fly using the BX command. When in Thumb mode ...
This is a list of central processing units based on the ARM family of instruction sets designed by ARM Ltd. and third parties, sorted by version of the ARM instruction set, release and name. In 2005, ARM provided a summary of the numerous vendors who implement ARM cores in their design. [1]
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.
ARM9 is a group of 32-bit RISC ARM processor cores licensed by ARM Holdings for microcontroller use. [1] The ARM9 core family consists of ARM9TDMI, ARM940T, ARM9E-S, ARM966E-S, ARM920T, ARM922T, ARM946E-S, ARM9EJ-S, ARM926EJ-S, ARM968E-S, ARM996HS.
Announced in October 2011, [3] ARMv8-A represents a fundamental change to the ARM architecture. It adds an optional 64-bit Execution state, named "AArch64", and the associated new "A64" instruction set, in addition to a 32-bit Execution state, "AArch32", supporting the 32-bit "A32" (original 32-bit Arm) and "T32" (Thumb/Thumb-2) instruction sets.
This is a comparison of ARM instruction set architecture application processor cores designed by ARM Holdings (ARM Cortex-A) and 3rd parties. It does not include ARM Cortex-R, ARM Cortex-M, or legacy ARM cores.
The ARM Cortex-R is a family of 32-bit and 64-bit RISC ARM processor cores licensed by Arm Ltd.The cores are optimized for hard real-time and safety-critical applications. Cores in this family implement the ARM Real-time (R) profile, which is one of three architecture profiles, the other two being the Application (A) profile implemented by the Cortex-A family and the Microcontroller (M ...