ISRO2020-15

Question

A stack organized computer is characterised by instructions with

• A. indirect addressing
• B. direct addressing
• C. zero addressing
• D. index addressing

Comments

Machines based on accumulator register; and stack organized machines support Zero Address Instructions, because the address of the operand is implicitly known. (Accumulator, and Top of the Stack respectively)

Option C

Answer 1

in stack organized computers Operands are stored in stack.

Therefore , it requires zero address to access the operands.So, stack organized uses zero address instructions