In immediate addressing, how is the data in the address field used?

In immediate addressing, how is the data in the address field used?

• A. As a storage address
• B. As a constant needed by the program
• C. As a pointer to the next instruction
• D. As an operation code reference

Answer: (B)

In immediate addressing, the data in the address field is used as a constant needed by the program. This addressing mode provides a way to specify literal values directly in the instruction itself, rather than first reading from memory. This means that when the instruction is executed, the processor uses the value specified in the instruction rather than fetching it from a memory location. Immediate addressing is often used for constants or fixed values that an operation should directly process, making it very efficient as it eliminates the need for additional memory access. This approach streamlines execution since the value is readily available at the time of instruction decoding, allowing the processor to proceed without delay. Thus, addressing fields in immediate mode facilitate straightforward operations with constants that support the functioning of the program directly.

In immediate addressing, the data in the address field is used as a constant needed by the program. This addressing mode provides a way to specify literal values directly in the instruction itself, rather than first reading from memory. This means that when the instruction is executed, the processor uses the value specified in the instruction rather than fetching it from a memory location. Immediate addressing is often used for constants or fixed values that an operation should directly process, making it very efficient as it eliminates the need for additional memory access.

This approach streamlines execution since the value is readily available at the time of instruction decoding, allowing the processor to proceed without delay. Thus, addressing fields in immediate mode facilitate straightforward operations with constants that support the functioning of the program directly.