[SM] Changing music (code) [solved]

[JAM]

I'm looking for a code that will change the music inside room. Well, I can change song (03, 04, 05, 06, 07 etc.) using this code:

LDA #$0003
JSL $808FC1

But what should be placed into A to change instuments (00, 03, 06, 09, 12, 15 etc.)? Collection, if use SMILE terms.

[Scyzer]

Set the high byte to $FF.

LDA #$FF36
LDY #$0008
JSL $808FF7

or

LDA #$FF36
JSL $808FC1

[JAM]

Yes, it suppose to work, but... just not working. Music just stops and I hear silence.

Both codes I've placed into FX2 that will checks for the game time and change music after $10 seconds is passed and FX2 will be nullified, of course. I've tried to using Door Out scroll pointer. Same effect.

Looks like, extra operators are needed, but I don't sure what else should be done.

[Scyzer]

Dunno, but I've been able to change music using blocks (as in Super Hauntroid). Never tried with FX2, but you'll also need to set a bit so the music isn't constantly updating, which would probably lag the game anyway.

[Smiley]

This is the code from Kejardon's Kraid music patch:

LDA #$FF4B         ;Load 4B song data ("Collection" in SMILE)
JSL $808FC1
LDA #$0005         ;Load song track 5 (First track from song data) ("Play" in SMILE)
JSL $808FC1
RTS

Obviously change 4B and 05 to whatever you need.

I can guarantee this can be used to change the song with no problems. Should work with FX2 too.

[JAM]

SMILEuser96
Yes! It's working! Under FX2 and under Layer1_2 too.

Before that I've copied a code like this from boss AI (don't remember from which exactly):

Code Select Expand

LDA #$0000
JSL $808FC1
LDA #$FF09
JSL $808FC1
RTS
That's why I've got the silence. I thought that first 2 lines are required just to change music set.