Question

An instruction is stored at location 300with its address field at location 301. The address field has a value of 400. The processor register R1 contains 200. Evaluate and identify the effective addresses if the addressing mode is a) direct b) immediate c) relative d) register indirect

Answer 1

Answer:

The address field has the value 400. A processor register R1 contains the number 200. ... Relative addressing means that the address field contains offset to be added to the program counter to address a memory location of the operand. Effective address would therefore be 301 + 400 = 701.