NGFX SoundBuilder and audio questions..

[pierpa86]

Hi Guys,
I'm trying to work with this nice tool, but i dont understand addressing.
From default it start it 0x20 command on first track, but what if i need to start from 0x04 command ?
What about neogeo logo boot sound from 0x0002 ?
Any way to work on that address ?
Any way to change the index of command ?

 

[iq_132]

For my hacks I just do
add.b #$20, sound_command
On the 68k side.
You'll have to modify the.z80 it produces if you want to change the fixed commands. It doesn't offer any options to change these otherwise.

 

[pierpa86]

For my hacks I just do
add.b #$20, sound_command
On the 68k side.
You'll have to modify the.z80 it produces if you want to change the fixed commands. It doesn't offer any options to change these otherwise.

I know its an hard question, you know how to decopile / modify m1 z80 code ?

 

[iq_132]

I have written a few things in z80 assembly, yes. It's easy enough to disassemble things with the mame disassembler.

 

[pierpa86]

For my hacks I just do
add.b #$20, sound_command
On the 68k side.
You'll have to modify the.z80 it produces if you want to change the fixed commands. It doesn't offer any options to change these otherwise.

Hello iq_132
I'm back to the question here and i'm afraid I didn't understand your explanation.
Anyone know what is for asm and c header that you can generate in option ?
can they be used for this purpose perhaps?

 

[pierpa86]

I found 4 magic address in M1 rom after build it with NGFX tool, to start audio on different address like 004.
So at this point i think to do some pre pcm conversion.
Now is really simple.