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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.
ARM Cortex-A78: 2020 14 Out-of-order superscalar, register renaming, 4-way pipeline decode, 6 instruction per cycle, branch prediction, L3 cache ARM Cortex-A710: 2021 10 ARM Cortex-X1: 2020 13 5-wide decode out-of-order superscalar, L3 cache ARM Cortex-X2: 2021 10 ARM Cortex-X3: 2022 9 ARM Cortex-X4: 2023 10 AVR32 AP7: 7 AVR32 UC3: 3 Harvard ...
An optional extension to the ARM instruction set in the ARMv5TE, ARMv5TEJ and ARMv6 architectures. VFPv2 has 16 64-bit FPU registers. VFPv3 or VFPv3-D32 Implemented on most Cortex-A8 and A9 ARMv7 processors. It is backward-compatible with VFPv2, except that it cannot trap floating-point exceptions.
The first was the CISC (Complex Instruction Set Computer), which had many different instructions. In the 1970s, however, places like IBM did research and found that many instructions in the set could be eliminated. The result was the RISC (Reduced Instruction Set Computer), an architecture that uses a smaller set of instructions.
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.
ARM architecture (5 C, 40 P) I. ... X86 architecture (8 C, 69 P) Pages in category "Instruction set architectures"
The x86 instruction set refers to the set of instructions that x86-compatible microprocessors support. The instructions are usually part of an executable program, often stored as a computer file and executed on the processor. The x86 instruction set has been extended several times, introducing wider registers and datatypes as well as new ...
The x86 architecture is a variable instruction length, primarily "CISC" design with emphasis on backward compatibility. The instruction set is not typical CISC, however, but basically an extended version of the simple eight-bit 8008 and 8080 architectures.