Discuss the scaled index addressing mode and comments on the following instructions? a) MOV BX, [CX+5*AX]
b) MOV [DX5*DI+30H], CX

Memory will also be accessible in Scaled index addressing mode using a 32-bit base & indexing register.The instruction's first parameter will be the base register, and the instruction's second parameter will be the index register. The index register is multiplied by a scaling factor before the program is fetched.

For option a:

The baseline register is , while the index register is .

The multiplier for Accumulator will be 5. will be multiplied with this value. will contain a memory address.The value at position is accessed by .The value retrieved from the address is moved into Base register BX by the MOV instruction.

For option b:

Its index register is , whereas the base register is .

has a number, that is copied to a computed place below.After multiplying by will be multiplied by this .To the aforementioned multiplied value, will be added. is a value located at location . is a memory address number.As a result, the value of will be copied to the location.

Learn more:

Ithink it is 1/250 i hope this is