CPU RAM Address Bus Address Value PC MAR 0000 0101 0101 0001 0001 0110 0010 0011

Question

CPU RAM Address Bus Address Value PC MAR 0000 0101 0101 0001 0001 0110 0010 0011 0111 0011 1001 0010 0100 0000 0000 0101 0011 0000 0110 0000 0001 0111 0000 0000 1000 0000 0000 1001 0000 0000 1010 0000 0000 1011 0000 0000 1100 0000 0000 11010000 0000 1110 0000 0000 1111 0000 0001 DECODE UNIT ACC OPCODE OPERAND INSTRUCTION 0001 address add 0010 address 0011 address store 0101 address load 0110 address 0111 address branch if ACC-o 1000 address branch if ACC: 0 1001 0001 1001 0010 ALU branch always MDR Data Bus 0 CIR 0110 1001 0 Control Bus CU

Explanation / Answer

The opcode for memory location 4(0100) is 0000 0000 whis ie "end instruction" in the decode unit

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