Why there's no es5506 packs if Vgmplay is compatible with es5506

[yoshi200213]

Hello
Why are there's no ES5506 packs if vgmplay supports ES5506 chip?
we need es5506 packs like dyna gear.

[ValleyBell]

ES5505/ES5506 support got removed, because it was in a terrible state, barely working and done in an even more hackish way than 90% of the rest of the format.

[Mao (RN22)]

Me and cam tried to port the es5506 core directly from mame to libvgm, but It was not enough. The es5506 core itself should be dynamic, and lots of work to be able to support it.

[dmbnation41]

At least we got the ES5503 support!
Could that work instead? I mean it happened so with the YM3526 to the Y8950 on the Psycho Solider pack. You should know what I mean.

[Mao (RN22)]

No, ES5503 is different to the 5505/06 one. If we hack the 5503 to play the 5506 commands, this'll lose the originality of the chip, and even worse, playing 5506 vgms in 5503 resulting on playing bad samples.

[dmbnation41]

No, ES5503 is different to the 5505/06 one. If we hack the 5503 to play the 5506 commands, this'll lose the originality of the chip, and even worse, playing 5506 vgms in 5503 resulting on playing bad samples.

First of all, how did you know about that?
Second of all, what other chips can be switched to another chip, and that will result in a good outcome?

[Mao (RN22)]

Good question.

Your first question is, I know about this cuz e.g. hacking k005289's command to k051649 may lose the originality to the soundchip itself, and doesn't look or sound like k005289, k053260 on the other hand uses 8-bit dara iirc, while k007232 uses 7-bit data to play the sample. If I hack the 007232's command to the 53260, the result is bad playback. So playing the 5506 commands to the 5503 resulting these errors that I've mentioned in this example. And tedious to hack.

2nd question is no. There's no other chips that can be switched. If the system has that soundchips that doesnt supported in the VGM format, then you have no choice but to not rip it. Either you implement the chip's core, or wait for the programmers to create the chip itself.