1. The only store instruction is the third instruction which store value of accumulator into address 800 hence the answer is 800.
2. Here again the third instruction is responsible for storing which modifies the value at address 801
3. Here the instruction store value of accumulator by indirect addressing hence it stores at the address which is contained in location 800 ( 1100 in this case) hence the answer is 1100.
Instruction set architecture R: register X, Y, Opl, Op2: Operand Quantity: constant value EA: Effective memory address Opcode Operation Name MOV X, Y XCH Opl, Op2 ADD X, Y SUB X,Y SAL Op, Quantity...
Instruction set architecture R: register X, Y, Op1, Op2: Operand Quantity: constant value EA: Effective memory address Opcode Operation Name MOV X Y XCH Opl, Op2 ADD X, Y SUB X, Y SAL Op. Quantity SAR Op. Quantity SHR Op Quantity AND X, Y OR X. Y XOR X, Y NOT X LOAD RA LOAD R. (A) STORERA STORE R. (A) Description Move data from Y to X Exchange Opl with Op2 X=X+Y X=Y-X Shift Arithmetic Left on Op for...