*****The Program in Use is DOSBox......****

III. Using the BX Register in the Register Indirect Mode An instruction that has the BX register placed in square brackets is register indirect addressing. This means to use the number that is in the BX register as an address. Therefore, if 411 (the ASCII value for the letter A) is placed at the address 400, then the instructions MOV BX, 400 followed by MOV DL,[BX] will move the code for the letter A into the DL register. Demonstrate this by placing the code for A at address 400, moving this code to the DL register and writing the letter to the screen. III. Using the BX Register in the Register Indirect Mode An instruction that has the BX register placed in square brackets is register indirect addressing. This means to use the number that is in the BX register as an address. Therefore, if 411 (the ASCII value for the letter A) is placed at the address 400, then the instructions MOV BX, 400 followed by MOV DL,[BX] will move the code for the letter A into the DL register. Demonstrate this by placing the code for A at address 400, moving this code to the DL register and writing the letter to the screen