I find conflicting references to this AC97 codec, some claiming to get it working in DOS with a TSR and some claiming it does not work. I thought VOGONS would be the place to ask so, here we go. Do DOS drivers for this actually exist?
If it is hooked to say VIA 686 southbridge you'll get DOS support through the VIA TSR etc. but if say some intel SB there's not gonna be any DOS support. AC97 part is only a standard interface for having DAC+ADC+Mixer in one chip and bus, outside of the controller, so what exact part the AC97 CODEC is doesn't actually matter and only the controller part does (which is the one in contact with PCI bus).
T-04YBSC, a new YMF71x based sound card & Official VOGONS thread about it
Newly made 4MB 60ns 30pin SIMMs ~
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Tiido wrote on 2021-11-03, 14:24:If it is hooked to say VIA 686 southbridge you'll get DOS support through the VIA TSR etc. but if say some intel SB there's not gonna be any DOS support. AC97 part is only a standard interface for having DAC+ADC+Mixer in one chip and bus, outside of the controller, so what exact part the AC97 CODEC is doesn't actually matter and only the controller part does (which is the one in contact with PCI bus).
My motherboard has a VT8235 SB so I guess for me it is a no go. At least on the bright side that should be fairly compatible with a lot of PCI cards that have SB emualtion.
VT8235 supports DDMA, so you can use any DOS compatible PCI sound card for DOS - I run PCI ALS300 on this chipset myself, everything works fine (OPL FM too).
The TSR is also very large (or it was back in 2006 when I was playing with it) which makes it hard if you are short on conventional memory.
I use an ALS4000 PCI card with the VT8235. It works great, doesn't need a TSR, has SB/SB Pro/SB16 emulation, and has OPL3 compatibility that sounds like the real thing.
