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Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-28, 01:33

Something I thought about last night when laying in bed is a bit convoluted, but I wonder if it would work. Basically my idea is could this be used to to emulate a soundcard that the dos version of dosbox-x can use, and then using dosbox-x run windows 3.1 and have working sound for that? or hell …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-26, 02:46

Hey, I just modified the power state code, hope it'll work this time. https://www.vogons.org/viewtopic.php?p=1149765#p1149765 crazii, this last fix has caused setblaster to work, on ICH6 AC97 (previously failed). I've yet to test anything else. Vendor 8086, Device 266e, Subsystem 834c10f7, revision …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-21, 04:39

I found only jemmex.exe under the bin directory of freedos. Updated it and now it no longer boots. Do you know the paths of where to place the other exe's? Via search I can't find anything You don't need to overwrite the original JEMMEX.EXE, that came with FreeDos. You can just leave the new one in …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-20, 17:01

Baron von Riedesel wrote on 2023-03-20, 15:21: There is - at least - one difference: while MS-DOS accepts multiple UMB providers ( it checks for - new - UMBs each time a device driver has been loaded ), FreeDOS stops checking once a driver has supplied UMBs. So, there "may" be something there. …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-19, 22:46

i'm using the lastest version of freedos with jemmex provided with the sbemu binary, i believe version freedos 1.3? i would suppose both freedos and ms-dos would behave the same. the former latter haven't tried yet, would dos 6.22 make any difference compared to dos 7.1? I would not have thought …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-19, 19:54

I'm not sure if this will help but here's the data sheet for the VIA vt8235 & vt8237r+ southbridges. as far as i'm aware these chipsets all carry some form of AC'97 codec, in which MPXplay play's fine in "VIA" mode on my build with a VIA chipset. it's an p4m890 with vt8237r+ chipset. sbemu inits …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-10, 11:07

If you want audio in Windows 9x on newer systems you can always use an USB audio adapter. You can also get PCIe based CMI 8738 off Ebay that should support Windows 9x, but don't expect Sound Blaster emulation to be working inside Windows when using VxD drivers. I'm pretty sure SBEMU never were …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-10, 03:38

My test system is a Zotac Zbox ID80 https://www.zotac.com/us/product/mini_pcs/id80 which has a Realtek AC97 chip. It was detected as Intel HDA. Are you sure its an AC97? I haven't seen many devices supporting both USB3 and AC97. Intel introduced the HDA replacement specification in 2004. Granted, …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-10, 02:03

Sorry if this is a dumb question, but this could be used on Win9x? I'm sure you are not the only one wondering this. My system doesn't work with SBEMU, yet. So, I am no authority on it. Windows says it cannot run, because a protected-mode software is running. That would be Jemmex. But you can load …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-09, 14:11

The instruction bytes translate to mov cr4, eax smsw ax ... It's imprecisely coded in hdpmi32, because this code "should" only be executed in real-mode - however, it's executed in v86-mode ( and causes the crash then ) if no VCPI API has been detected. In any case hdpmi32 is unable to continue and …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-08, 20:30

This is from QEMM9 Exception #13 at 0867:109F, error code: 0000 AX=0011 BX=0000 CX=0106 DX=0001 SI=01DA DI=00AC BP=0912 DS=0867 ES=0000 SS=0A38 SP=01DC Flags=7206 Instruction: 0F 22 E0 0F 01 E0 A8 01 0F 85 AA 00 E8 19 FD Agian, from older release: Exception #13 at 0867:0FEF, error code: 0000 AX=0011 …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-08, 10:02

When using QEMM8 with HDPMI32I, I get: Exception #13 at 0866:109F, error code: 0000 AX=0011 BX=0000 CX=0106 DX=0001 SI=01DA DI=00A4 BP=0912 DS=0866 ES=0000 SS=0A37 SP=01DC Flags=7206 Instruction: 0F 22 E0 0F 01 E0 A8 01 0F 85 AA 00 E8 19 FD That was from the most resent release. However an older …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-08, 09:33

Wolf3d and many other games work fine with sound. And I get no sound when get this pattern on snes ZSNES, it just locks. Once with one of the combinations I got a vertically rolling pattern, that was even more beautiful :) ZSNES uses cwsdpmi, maybe that's the reason. However I found it was zyzzle …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-08, 08:51

crazii wrote on 2023-03-08, 07:49: Actually ICH6 is never tested, only ICH4 tested. it might have problems, that's the case I'm mostly worried about: some boards are not working but I have no hardware to debug it, just have to review the code to find any problem for now. 🤣 Glad to help, if there is …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-08, 03:52

I think someone wrote that had successfuly run ZSNES with sbemu. When I run it (v 1.51) I get this beautiful pattern. Tried different menory managers (Jemm, qemm, himemx), different /T switches and IRQ 5/7, RM0. But could not find the right combination. Runs fine withou sbemu. I have a similar …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-08, 03:39

The harder part would be how to distinguish different devices of the same nature, particularly common for Intel HDA (onboard, HDMI, or even Sound Core3D), as well as USB Audio Class devices. One most likely will need to obtain their vendor:device IDs in order to tell them apart. The used MPXPlay …

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