SMB1 Area Music Help

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Main - ROM Hacking - SMB1 Area Music Help

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GameGenie81

Posted on 04-23-08 05:16 AM (rev. 3 of 04-23-08 05:25 AM)

Link | Quote | ID: 82255

Koopa
Level: 24

Posts: 45/100
EXP: 78100
Next: 25

Since: 08-15-07
From: Milwaukie, OR

Last post: 5434 days
Last view: 5388 days

Hi,

I am in need of some help with getting to trigger the SMB1 music engine to play the Koopa Castle theme all the time.

The code YYAPYO only plays this music outside and in the rightful stages it belongs to.

To see what I mean, I'm posting the entire Get Area Music routine ($10fd-$1125)


$90ED:AD 70 07 - LDA $0770
$90F0:F0 23 - BEQ $9115
$90F2:AD 52 07 - LDA $0752
$90F5:C9 02 - CMP #$02
$90F7:F0 0D - BEQ $9106
$90F9:A0 05 - LDY #$05
$90FB:AD 10 07 - LDA $0710
$90FE:C9 06 - CMP #$06
$9100:F0 0E - BEQ $9110
$9102:C9 07 - CMP #$07
$9104:F0 0A - BEQ $9110
$9106:AC 4E 07 - LDY $074E
$9109:AD 43 07 - LDA $0743
$910C:F0 02 - BEQ $9110
$910E:A0 04 - LDY #$04
$9110:B9 E7 90 - LDA $90E7,Y
$9113:85 FB - STA $00FB
$9115:60 - RTS

Perhaps within all these addresses, could there be a proper fix to this besides the assignment that begins with $9106 (which is where some of the GG "music all the time" codes lie in)?

According to Doppelganger's SMB1 ASM guide, the area music constants are:
%01000000 (40) - Star Man music
%00100000 (20) - Pipe intro music
%00010000 (10) - Cloud music
%00001000 (08) - Castle music
%00000100 (04) - Underground music
%00000010 (02) - Water music
%00000001 (01) - Ground music
%00000000 (00) - Silence

Thank you,

Ben

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Main - ROM Hacking - SMB1 Area Music Help

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