ARM处理器杂谈

ARM ARM 结构, ARM处理器.现在,应用非常广泛,应用于嵌入式系统中,像手机,ATM取款机,车载设置,录音笔. ARM在维基百科里的定义: The ARM is a 32-bit reduced instruction set computer (RISC) instruction set architecture (ISA) developed by ARM Holdings. 从定义可以看出,ARM处理器,32位的,RISC指令集 ,ISA架构. 生产ARM的公司有很多,看下面这段话: ARM processors are developed by ARM and by ARM licensees. Prominent examples of ARM Holdings ARM processor families include the ARM7, ARM9, ARM11 and Cortex. Examples of ARM processors developed by major licensees include DEC StrongARM, Freescale's i.MX, Marvell (formerly Intel) XScale, NVIDIA's Tegra, ST-Ericsson Nomadik, Qualcomm's Snapdragon, and the Texas Instruments OMAP product line. ARM 处理器,主要是以ARM公司或以ARM授权公司开发的,主要的授权公司有:Alcatel-Lucent, Apple Inc., Atmel, Broadcom, Cirrus Logic, Digital Equipment Corporation, Freescale, Intel (through DEC), LG, Marvell Technology Group, NEC, NVIDIA, NXP (previously Philips), Oki, Qualcomm, Samsung, Sharp, ST Microelectronics, Symbios Logic, Texas Instruments, VLSI Technology, Yamaha and ZiiLABS.魅族用的ARM处理器是经过授权的samsung(韩国三星)生产的,为ARM11 667,在微处里器来,应该算是比较高级,用得也很广泛. ARM holdings公司对关于ARM的介绍: ARM designs the technology that lies at the heart of advanced digital products, from wireless, networking and consumer entertainment solutions to imaging, automotive, security and storage devices. The ARM comprehensive product offering includes 32-bit RISC microprocessors, graphics processors, enabling software, cell libraries, embedded memories, high-speed connectivity products, peripherals and development tools. 可以看出现在ARM 处理器,应用还是广泛的,基本上可以配美前几年PC机. 下面看看ARM核心技术,对比: [IMG]zb_users/upload/legacy-upload/ARM-core.gif[/IMG]