Question: (a) For the direct addressing mode, write down the micro-operations needed to complete the instruction, ADD BL, [2000]. Hint: There will be 6- T-states (T1,

(a) For the direct addressing mode, write down the micro-operations needed to complete the instruction, ADD BL, [2000]. Hint: There will be 6- T-states (T1, T2, T3, T4, T5 and T6). [5 marks] (b) Compare state-table method and delay element method for hard-wired controlled units in terms of their benefits and drawbacks. [5 marks].

please don"t follow this pattern.

It is a three byte instruction First ADD BL will be fetched in 1st T state. Lower byte of address 2000 is fetched in 2 nd T state Higher byte of address 2000 is. Fetched in 3rd T state And it content of 2000 is fetched in 4 th T state Content of 2000 H memory location will be moved To BL register in 5 th T state.

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