First field of the three field I.R. indicates op-code, second addresse...

First field of the three field I.R. indicates op-code, second addresses a register from a set of 100 register and third is the memory address field. A 32-bit instruction is placed in 1 MW memory. If there are k instructions which uses both register and memory reference and l address register reference instructions then the number of zero address instructions possible are:

  1. [(25−k)×220−l]×27
  2. [(25−k)×27−l]×220
  3. [(25−l)×220−k]×27
  4. [(25−l)×27−k]×220

    Ans. 1

1Comment
Jaspreet Singh @jaspreetedu 5 Feb 2018 06:29 pm