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Re: Newly made PCMCIA sound card

Posted on 2021-04-09, 11:17

In the meanwhile Mouser has received a stock of receptacle connectors https://www.mouser.com/ProductDetail/Hirose-C … WvkTg40eA%3D%3D All other parts for the 25 pin plug appear to be available as well Re: HardMPU, anyone?

Re: Newly made PCMCIA sound card

Posted on 2021-04-08, 17:26

I thought originally all it was going to be was a MPU interface with a SAM chip on it. Alternatively it could just have a sidecar that has a Wavetable header in it and the user could put any wavetable in there they wanted. I don't think you should add sound blaster to it as it adds a lot of …

Re: Newly made PCMCIA sound card

Posted on 2021-04-01, 08:26

I'm sorry I can't be of any help here. Maybe reversing the TSRs from other cards can be useful? Here are two of them. DMASTER is for devices based on DSP Solutions chip and VGAME is for Media Vision card. But both support only real mode games. Filename DMASTER.EXE File size 50.78 KiB Downloads 59 …

Re: Newly made PCMCIA sound card

Posted on 2021-03-28, 08:37

no brick walls. I think I am close (to something), I can now play audio however it is not the expected audio, I am reading from the wrong place in memory. I will have to re-evaluate how I am using the address and page latch info that gets setup to the dma controller to assemble an address back to a …

Re: PCMCIA Sound Cards

Posted on 2021-03-27, 08:18

Another incarnation of IBM 16 bit Sound Adapter. Just Audio... 16 bit Audio Adapter.jpg does this also feature sound blaster support in dos? No, this card does not even support Adlib sound. It works only withit's own player in DOS and as is WSS compatible in Windows. It's been sold under many …

Re: Newly made PCMCIA sound card

Posted on 2021-03-20, 10:17

As I slowly get my head around this, it is not overly complicated but it certainly introduces an overhead, the one that DMA was specifically meant to address. With the IBM card does it cause a noticeable change in game speed? Like, will this be a problem trying to play doom on a 486DX2-50? Maybe …

Re: Newly made PCMCIA sound card

Posted on 2021-03-18, 09:42

Perhaps also there was less demand at the time, to play dos games on these laptops that had no sound? and the ones that were WSS were we happy to just run windows? I don't remember because during this era I only had desktop computers. I do have faint memories of the frustrations of windows only …

Re: Newly made PCMCIA sound card

Posted on 2021-03-18, 08:08

What I have working today: 330h MPU-401 based on the HardMPU project. 338h Yamaha OPL3, seems to work but I did not connect DAC, I have it though. 201h Gameport, currently I am testing with my built on ESS, by setting set it to DMA3 when Doom is looking for DMA1 and driving the data out a different …

Re: Newly made PCMCIA sound card

Posted on 2021-03-17, 11:27

DOOM is an excellent reference point IMO. As it reperesents a number of good games based on the same engine. Another group of games that is probably worth testing are those using Miles Sound System. https://www.mobygames.com/game-group/sound-en … es-sound-system

Re: Newly made PCMCIA sound card

Posted on 2021-03-17, 05:57

okay sorry to reply to myself again, not sure proper protocol, edit previous post anyway, I think there is actually a possibility I can do this, it would not use the ibm drivers as it is a bit too complex I think to emulate a card enough. It would need to be my own enabler/tsr which I have started …

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