I'm trying to write a program in Assembler that prompts the user for a

FAT16 file date and then converts it to a date in the following format: "October 1st, 2011"

When I enter "4423" it returns the date "October 04th, 0017"

That is correct except for the year. I need to add 1980 to the 0017 to get the correct

year of 1997. Somewhere in the "years" section of my code I need to add 1980.

I was thinking something like 'add ax, 1980', but I can't figure out where it needs to go.

Hoping you can help!

Here is my code from the "Year" section:

mov ax, cx

AND ax, 1111111000000000b

ROR ax, 9

xor dx,dx

mov bx, 1000

div bx

add al, 30h

mov byte ptr vYear,al

mov ax,dx

xor dx,dx

mov bx,100

div bx

add al,30h

mov byte ptr [vYear +1],al

mov ax,dx

mov bl, 10

div bl

add ax,3030h

mov word ptr[vYear +2],ax

mov edx, offset vYear

call writeString

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Any idea where and how I might add the 1980 to get the correct year?