I. Read the following list file generated by tasm C:ltasm /1 prog4.asmm C: Inotepad prog4.Ist 1 0000 .model small .stack 100h data X db 10h Y db 20h Z db ? 2 0000 3 0000 4 00d 5 0001 20 6 0002 ?? s 0003 1234 5678 0010 A dw 1234h,5678h.10h; define three words 9 0009 03*(????) 10 11 000F 12 0000 13 0000 B8 0000s 14 0003 8E D8 15 16 0005 A0 0000r 17 0008 02 06 0001r 18 000C A2 0002r 19 20 000F FF 36 0003r push A 21 0013 FF 36 0005r 22 0017 FF 36 0007r push A+4 23 001B 8F 06 0009r 24 001F 8F 06 000Br 25 0023 8F 06 000Dr B dw 3 dup ): define three words w/o initialization .code start mov ax,@data mov ds,ax mov al,X add al,Y mov Z,al push A+2 pop B pop B+2 pop B+4 26 27 0027 B4 4C 28 0029 B0 00 mov ah,4ch mov al,00h int 21h 29 002B CD 21 30 31 end start The machine code for mov DS, AX is bytes are reserved for the stack bytes are used for the variables. bytes are used by the machine codes. For the program