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QUESTION 1 [10 Marks] a) Figure 1 shows the generic block diagram of microprocessor. By referring to the block diagram, investigate and discuss the steps
QUESTION 1 [10 Marks] a) Figure 1 shows the generic block diagram of microprocessor. By referring to the block diagram, investigate and discuss the steps by step (from step 1 to 4) required for instruction to add two numbers together. The instruction set is as below (Add 15H to the number 25H): ADD A, 15H One of the numbers is already stored in the accumulator or register or accumulator A, with the number 25H. Analyze the result? Registers Instruction decoder Instruction register ALU Data buffer Control bus Address bus Data bus Figure 1: The microprocessor adds two numbers [5 Marks] b) Copy and paste is carried out through block transfer operation Develop a program of 8086 to transfer a block of 25000H to 36000H with string instruction. The count used is 1kB and placed in the CX register
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