6.What is function of MBR ?. Single choice.
(1 Point)
Contains the 8-bit op-code
Read/write a word form memory
Specify an address from memory
Store address of next instruction
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Explanation:
Memory Reference – These instructions refer to memory address as an operand. The other operand is always accumulator. Specifies 12-bit address, 3-bit opcode (other than 111) and 1-bit addressing mode for direct and indirect addressing.
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