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7_assembly - Introduction to Computers and Programming Prof...

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Introduction to Computers and Programming Lecture 7 computer processor memory ALU CU 10101101 01111000 Input bus Prof. I. K. Lundqvist Reading: B pp. 505-507, Machine language handout Sept 16 2003 Recap – Computer Architecture Computer Organization The von Neumann architecture Same storage device for both instructions and data The von Neumann Bottleneck devices Reg Reg Output
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CPU Memory DVD Network described in Appendix C Recap – Computer Architecture Device Controllers Memory mapped I/O Direct Memory Access (DMA) Instruction Set Data transfer operations Arithmetic / logic operations Control flow instructions Video controller controller USB controller Outside world controller The architecture of the machine Hard drive Program counter Instruction register CPU Main memory Address Cells 00 01 02 03 FF Bus Registers 0 1 2 F Arithmetic / Logic Unit Control Unit . . . . . . . . . .
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Program Execution “The machine cycle” The composition of an instruction for the machine in Appendix C E x e c u t
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