.model small .data row db ? col db ? tot db ? rows db 10,13,"Enter the no. of rows:$" cols db 10,13,"Enter the no. of columns:$" matd1 db 10,13,"Enter the first matrix:",10,13,"$" matd2 db 10,13,"Enter the second matrix:",10,13,"$" totald db 10,13,"The sum is:",10,13,"$" space db " $" newline db...