Storing Data To The Floppy Disk - Nintendo GAME BOY Programming Manual

Game Boy Programming Manual
13. Complement Check (014DH)
After all the registration data has been entered (0134H~014CH), add 19H to the sum of
the data stored at addresses 0134H through 014CH and store the complement value of
the resulting sum.
14. Check Sum Hi and Lo
The check sum, excluding the value of 014EH and 014FH, is stored here.
Check sum Hi and Lo will be different from the Total Check Sum.

11. STORING DATA TO THE FLOPPY DISK

1. Use MS-DOS
2. The data must be submitted in binary (ROM) format. Do not compress the data. The
maximum amount of data stored on each floppy should be 8Mbit.
3. The file name should be formatted as described in item #16 of "Instructions for Game Boy
Software Specification Sheet - File Name and Check Sums."
4. Place a label describing the content of each disk as shown below.
Company name: Nintendo Co., Ltd.
Product name: Mario's Pikurosu
Product code: DMG-P-APCJ (JPN)
File name:
Check sum:
Date:
(0134H) + (0135H) +...+ (014CH) + 19H + (014DH) = 00H
014EH = Upper
014FH = Lower
3.5 inch, 2HD disk(s).
®
APCJ00-0.GB
ABCD
1998/8/1
300