Instruction cycle and finding contents of registers

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Q1) An instruction at address 129 in the basic computer has I = 0, and an address part equal to 630 (all numbers are hexadecimal). The memory word at address 630 contains 2F4A and content of AC is AB4D. Go over instruction cycle and find out contents of registers PC, AR, DR, AC, and IR for each of seven memory-reference instructions.

PC AR DR AC IR
Initial 129 - - AB4D -
AND
ADD
LDA
STA
BUN
BSA
ISZ

Reference no: EM1345537

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