ALP to subtract two 8-bit numbers

ALP to subtract two 8-bit numbers

DATA SEGMENT

NO1 DB 30H

NO2 DB 20H

DATA ENDS

CODE SEGMENT

            ASSUME CS:CODE,DS:DATA

            START:MOV AX,DATA

                          MOV DS,AX

                          MOV AL,NO1

                          MOV BL,NO2

                          SUB AL,BL

                          MOV DS:[2000H],AL

                          HLT

            CODE ENDS

            END START

RESULT:

            I/P : ALß30H                                                O/P: ALß10H

                    BLß20H                                                         [2000H]ß10H