W05_09_ARM_Arch1 - 09 ARM Architecture CSC 230 Department...

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09 ARM Architecture CSC 230 Department of Computer Science University of Victoria
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Background history of the ARM processor ISC concepts from Stanford & Berkeley mid 80’s ± RISC concepts from Stanford & Berkeley mid 80’s ± Acorn Computers (Cambridge, UK) 1983-1985 uccess of BBC microcomputer (8- it processor widely ± Success of BBC microcomputer (8 bit processor widely used) ± In 1983 most 16-bit CISC processors were slower than memory! eo y ± Acorn was a small company, no resources to compete commercially with much bigger processor, yet they had clever design ideas g ± Berkeley RISC paper showed a RISC design done by a handful of grad students in less than 1 year ± ARM Limited in 1990 Î ARM = Advanced/Acorn RISC Machines ± Market leader for low-power and cost-sensitive embedded systems ± ARM supported by strong development tools
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Why ARM? ± ARM is one of the most licensed and thus widespread processor cores in the world ± Used especially in portable devices due to low power consumption and reasonable performance (MIPS / att) watt) ± Several interesting extensions available, for example Thumb instruction set and Jazelle Java machine
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1400 1300 Other SPARC 1200 1100 1000 Hitach iSH PowerPC Motorola 68K MIP S 900 800 700 600 IA 32 ARM 500 400 300 200 100 0 1998 2000 2001 2002 1999
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Market Statistics In 2007, about $73 billion (USD) worth of microprocessors were manufactured and sold Half of that money was spent on CPUs used in desktop or laptops only 0.2% of all CPUs sold 99% of all CPUs sold are for embedded systems
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Market Statistics CPU Sales 2007 55% 45% 8-bit others Average Price = $6.00
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Market Statistics Sales of 32 bit CPUS in 2007 8% of all 32 98% of all 32 bit sold 90.0% 9.8% 10.0% 2% 0.2% 2% of all 32 it sold others embedded PC bit sold
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Arm Register Structure R0
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This note was uploaded on 01/15/2012 for the course CSC 230 taught by Professor Jasond.corless during the Summer '11 term at University of Victoria.

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W05_09_ARM_Arch1 - 09 ARM Architecture CSC 230 Department...

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