AUDIO - Nuked OPL3 Patch for DOSBox(+Windows build) (SDL1)

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Re: Nuked OPL3 Patch for DOSBox(+Windows build)

Postby nukeykt » 2017-6-10 @ 18:11

Battler wrote:So basically, all I need to do is not map the high bank, and that's it?

Yes. For single OPL2 it's enough. But you should emulate somehow Dual OPL2.
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Re: Nuked OPL3 Patch for DOSBox(+Windows build)

Postby Battler » 2017-6-10 @ 18:45

The emulator already has something for that, opl2_r read/write and opl2_l read/write, each going to its own OPL2 chip. Hopefully I can just reuse that.
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Re: Nuked OPL3 Patch for DOSBox(+Windows build)

Postby James-F » 2017-7-31 @ 06:43

Hi nukeykt.
Will NukedOPL v2.0 be available as a patch?
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Re: Nuked OPL3 Patch for DOSBox(+Windows build)

Postby nukeykt » 2017-8-01 @ 15:29

James-F wrote:Hi nukeykt.
Will NukedOPL v2.0 be available as a patch?

Yes. When i'll finish it.
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Re: Nuked OPL3 Patch for DOSBox(+Windows build)

Postby FM-OPL-Midi-Freak » 2017-8-21 @ 18:47

Hello all!

please, can anyone tell me, how can install the patch file, the content of the"dosbox-nuked-opl.zip" I just replaced with the original dosbox.exe and the corresponding *.dll´s "SDL_net / SDL.dll,

For answer I am grateful ;-)

Greets
Matthias
Equipment:
- ESS Solo (PCI)
- Ess Audio Drive-Compaq (ISA)
- Soundblaster 2.0
-Audioblaster Pro 4.0 at the time puplished by CPS Hamburg

-Sw1000XG / Motif XF - my treasures ;-) beside the Cockaigne of fm synt synthesis / adlib
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Re: AUDIO - Nuked OPL3 Patch for DOSBox(+Windows build) (SDL1)

Postby Uriel_Dagda » 2017-12-03 @ 04:09

I'm using the DOSBOX ECE... I'm using my old DOSBOX conf file that was made by GoG for World of Xeen--- is oplemu the same as oplmode?
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Re: AUDIO - Nuked OPL3 Patch for DOSBox(+Windows build) (SDL1)

Postby NewRisingSun » 2017-12-03 @ 04:17

nukeykt, I noticed something when I used the YM3812-bearing CT1320 in my Tandy 1000 TX.

Most documentation states that the YM3812 can be distinguished from the YMF262 by reading the index port; a YM3812 supposedly always returns 0x06, while an YMF262 supposedly always returns 0x00. Well, on the Tandy 1000 TX, reading the index port only returns 0x06 if you write a byte with bits 1 and 2 set immediately to it before! Unlike standard ATs, the Tandy 1000 TX does not pull "open bus" bits high. That also manifests itself in reads from unmapped I/O ports returning whatever just happens to be on the bus, while on a standard AT, reading unmapped I/O ports always returns 0xFF.

Can you confirm that on the YM3812, index port bits 1 and 2 are open bus rather than "1" bits from the chip side?
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