FIT1047 Lecture Notes - Lecture 3: Memory Buffer Register, Instruction Register, Master Boot Record
4 Aug 2018
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An interpreter executes/interprets the instructions written in (e. g. python) a programming language. Cpu is the brain of the computer and it can execute the machine code. None of these can be executed directly by the cpu. The cpu can only execute machine code. Do some maths (add, subtract, multiply, compare) Move data between memory, cpu and i/o. The von neumann architecture s unique feature is that, both the programs instruction and data are stored in the same memory bank. The pc register contains the memory address where the next instruction to be executed is stored. The cu transfers the memory to the ir, instruction register, so it can point to the next instruction again. Increment the pc by 1 (alu add 1 to existing register) It looks at the instructions that has been transferred to the ir and tries to find out what it means .
