The display of R[3]=2 represents what type of addressing?

The display of R[3]=2 represents direct addressing because it indicates that the value 2 is being stored directly in the register R[3]. In direct addressing mode, the operand is explicitly specified in the instruction, meaning that the value can be accessed immediately without any intermediate steps. The instruction itself points directly to the location (in this case, R[3]) where the value is stored or from where it is being retrieved.

In direct addressing, the actual address is used in the instruction, allowing for straightforward access to the data. This contrasts with other addressing modes, such as indirect, where the address of the operand is stored in a different location, or relative, where the address is specified relative to some known point.