A program is stored from memory location 2000 H to 200C H. Copy the contents of these memory locations on paper and disassemble the program using op code sheet and write the working of the program.
2000 21 LXI H 2500 H
2001 00
2002 25
2003 46 MOV B M
2004 3E MVI A FF H
2005 FF
2006 90 SUB B
2007 23 INX H
2008 77 MOV M A
2009 3C INR A
200A 23 INX H
200B 77 MOV M A
200C 76 HLT