lecture26 - CMPT 150 Assembly Language Page 1 CMPT 150...

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CMPT 150 Assembly Language Page 1 Basic Computer Organization b Digital computer: b is capable of executing several micro instructions. b it can be instructed as to what specific sequence of operations it must perform b User can control process with: b program : set of instructions b computer instruction: binary code , specifying a sequence of micro-operations CMPT 150 Assembly Language Page 2 What’s in Memory? b Memory can store programs and data b A program is a set of instructions specifying a sequence of micro- perations 0x3241 0xf321 x9910 memory Program: operations b b Data is information that will be read from and/or written to the registers 0x9910 0x0001 0xf00f 0x2244 Data: CMPT 150 Assembly Language Page 3 Fetch/Execute Cycle b Execution of a stored program b 2 phases: fetch and execute , repeated for each instruction in the program b How does the computer know which instruction will be fetched and executed? b
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lecture26 - CMPT 150 Assembly Language Page 1 CMPT 150...

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