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Re: What is your unconscious motive for retro hardware ?

I've reached a point in my life where even the nostalgia isn't a huge factor in my interest in retro tech. Now, I'm most interested in the puzzle solving and problem solving of selecting, configuring, and using old tech. That means I keep devising side projects for myself with new puzzles to solve; …

Re: EXCELGRAPH - ISA Video Display Controller

If superfury manages to correctly emulate the ET4000/W32i chip in software, then there is a good possibility of translating all that implementation into a couple of CPLDs (Verilog most probably) or better an FPGA. That would make for a nice project. I think an FPGA core implementation of the Tseng …

Re: EXCELGRAPH - ISA Video Display Controller

I know that eBay prices are particularly high for ET4000/W32i cards. I don't think there were that many made (at least not like Trident cards) and they offer great ISA performance. I think only one other card based on a variant of Cirrus Logic GD series chip is on par with the Tseng models. However …

Re: EXCELGRAPH - ISA Video Display Controller

I sourced the ET4000/W32i chips from China. There are multiple electronics parts stores on-line where you input your RFQ for the part you'd like. However, the chips are not cheap at all. They go from about $40 to $100 each, depending on the seller. Then there's the shipping and import taxes. But …

Re: Best PCI sound card to work on DOS natively

in DOS
D S DMA always requires a TSR, and DDMA does not. Many cards support both, but your motherboard doesn't have DDMA or PC/PCI, which is why you have to use DSDMA. I haven't seen it put this way before. I thought all Creative PCI cards required a TSR and also wouldn't work on motherboards after around …

Re: Best PCI sound card to work on DOS natively

in DOS
So the Aurreal Vortex (And cards with the same chipset) will not work in my case as it doesn't make use of EMM386? So this limits the options to SB LIVE!/Audigy (And other PCI SB cards) and the Yamaha cards for a modern motherboard with a raw PCI slot? I am forced to use a card with a TSR that uses …

Re: Best PCI sound card to work on DOS natively

in DOS
On that motherboard, you won't be able to use PC/PCI or DDMA to route old PC IRQs and DMA channels to your PCI sound card. You'll have to use DSDMA, which is less compatible. Something to keep in mind. Can you clarify more? What sound cards support DSDMA? Sure. Old DOS games and applications …

Re: Best PCI sound card to work on DOS natively

in DOS
On that motherboard, you won't be able to use PC/PCI or DDMA to route old PC IRQs and DMA channels to your PCI sound card. You'll have to use DSDMA, which is less compatible. Something to keep in mind. As for which sound card is best, that depends mostly on whether you care about genuine OPL3 music. …

PC/PCI aka SBLink specification

Does anyone have a document describing what the PC/PCI aka SBLink signals actually are? I know what they're called - SERIRQ, PCI Sideband Grant, and PCI Sideband Request. In other words, if one were trying to synthesize those signals from other PCI, ISA, and/or LPC bus signals, one would need to …

Re: Win98 monster

Very nice huge tower! I like how you've really filled it out. Personally, I would much rather have the 3.5" floppy drive in the dedicated 3.5" floppy bay, and move the hard drive to a 5.25" bay, either with or without a drive sled. It's a nice molded plastic 3.5" floppy facade! What about a web …

Re: FastDoom. A new Doom port for DOS, optimized to be as fast as possible for 386/486 personal computers!

Here's a little update, textmode is fast even with CGA or EGA cards, the game framerate still relies on the CPU. This video shows the new textmode running on a 8-bit Trident EGA card (connected to a MCE2VGA i've recently acquired) in my 486DX-50. https://youtu.be/fFrkKUQO61Q I've been trying to …

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