Programming Cautions; Rom Registration Data; Initial Data; Sou_Trn Default Data - Nintendo GAME BOY Programming Manual

Game Boy Programming Manual

5. PROGRAMMING CAUTIONS

5.1 ROM Registration Data

To use SGB functions (system commands), the following values must be stored at the ROM
addresses indicated.
146h

5.2 Initial Data

When writing programs that use the system commands of SGB and SGB2, use the initialization
routine of the game program to send the following 8 packets of default data to the register file.
INIT1 DEFB
INIT2 DEFB
INIT3 DEFB
INIT4 DEFB
INIT5 DEFB
INIT6 DEFB
INIT7 DEFB
INIT8 DEFB
5.3 SOU_TRN initial data
When using the
SOU_TRN
the register file before
STI
DB $79, $00, $09, $00, $0B
DB $AD, $C2, $02, $C9, $09, $D0, $1A, $A9, $01, $8D, $00
ST2
DB $79, $0B, $09, $00, $0B
DB $42, $AF, $DB, $FF, $00, $F0, $05, $20, $73, $C5, $80
ST3
DB $79, $16, $09, $00, $0B
DB $03, $20, $76, $C5, $A9, $31, $8D, $00, $42, $68, $68
ST4
DB $79, $21, $09, $00, $01
DB $60, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00
ST5
DB $79, $00, $08, $00, $03
DB $4C, $00, $09, $00, $00, $00, $00, $00, $00, $00, $00
03h and 14Bh
$79,$5D,$08,$00,$0B,$8C,$D0,$F4,$60,$00,$00,$00,$00,$00,$00,$00
$79,$52,$08,$00,$0B,$A9,$E7,$9F,$01,$C0,$7E,$E8,$E8,$E8,$E8,$E0
$79,$47,$08,$00,$0B,$C4,$D0,$16,$A5,$CB,$C9,$05,$D0,$10,$A2,$28
$79,$3C,$08,$00,$0B,$F0,$12,$A5,$C9,$C9,$C8,$D0,$1C,$A5,$CA,$C9
$79,$31,$08,$00,$0B,$0C,$A5,$CA,$C9,$7E,$D0,$06,$A5,$CB,$C9,$7E
$79,$26,$08,$00,$0B,$39,$CD,$48,$0C,$D0,$34,$A5,$C9,$C9,$80,$D0
$79,$1B,$08,$00,$0B,$EA,$EA,$EA,$EA,$EA,$A9,$01,$CD,$4F,$0C,$D0
$79,$10,$08,$00,$0B,$4C,$20,$08,$EA,$EA,$EA,$EA,$EA,$60,$EA,$EA
system command, send the following 5 packets of
is used.
SOU_TRN
33h
186
default data to
SOU_TRN