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CSCE 3612 ch2-1

CSCE 3612 ch2-1 - Instruction sets Computer architecture...

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© 2008 Wayne Wolf Overheads for Computers as Components 2 nd ed. Instruction sets Computer architecture taxonomy. Assembly language.
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© 2008 Wayne Wolf Overheads for Computers as Components 2 nd ed. von Neumann architecture Memory holds data, instructions. Central processing unit (CPU) fetches  instructions from memory. Separate CPU and memory distinguishes  programmable computer. CPU registers help out: program counter  (PC), instruction register (IR), general- purpose registers, etc.
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© 2008 Wayne Wolf Overheads for Computers as Components 2 nd ed. CPU + memory memory CPU PC address data IR ADD r5,r1,r3 200 200 ADD r5,r1,r3
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© 2008 Wayne Wolf Overheads for Computers as Components 2 nd ed. Harvard architecture CPU PC data memory program memory address data address data
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© 2008 Wayne Wolf Overheads for Computers as Components 2 nd ed. von Neumann vs. Harvard
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CSCE 3612 ch2-1 - Instruction sets Computer architecture...

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