Direct addressing mode means the operand address is contained in the instruction. In the 8085, an example is LDA 1234H, which loads the accumulator with the contents of memory location 1234H. In the...
The operand addressing modes of the 8086/8088 are ...
Immediate
Register
Direct
Indirect
Within the Indirect category there is ...
Base
Index
Base + Index
Base + Displacement
Index +...