Assignment 4 works for 16 digit multiplicand and multiplier with 64 bit result.
Commands for Assignment 13 in DOS-BOX
foo@bar:~$ tasm filename.asm
foo@bar:~$ tlink -o filename filename.asm
foo@bar:~$ filename.exe
Assignment 3 works for 4 digit HEX numbers and 5 digit BCD numbers.
Assignment 7 requires the numbers in the file to be without spaces.