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Re: Yamaha YMF7x4 Guide

After reading this thread I still couldn't find a definitive answer to this: - do 815E/EP motherboards (ICH/1/2) support DDMA if using a modified setupds with the correct PCI IDs. Or does the modified setupds only enable SB-Link / PC-PCI on the boards. I have an 815EP (Tualatin) board with YMF724, …

Re: Yamaha YMF7x4 Guide

After reading this thread I still couldn't find a definitive answer to this: - do 815E/EP motherboards (ICH/1/2) support DDMA if using a modified setupds with the correct PCI IDs. Or does the modified setupds only enable SB-Link / PC-PCI on the boards. I have an 815EP (Tualatin) board with YMF724, …

Re: DOS driver for RetroWave OPL3

I've checked my device and the VendorID (VID) is 0483 and ProductID (PID) is 5740. However, I'm still not convinced the problem is with the Vortex86 SOM. When I plug in my KVM it allows me to type a few characters and then displays the exact same message ("Internal stack overflow, System Halted"). …

Re: DOS driver for RetroWave OPL3

I've talked to Sudomaker and the vendor id is as you said, but I didn't use it, the express and lite have different ids. I'll try fix the id and that will solve the device not found problem, the other error, internal stack overflow, I think it is a bug of the driver, but I didn't see it in …

Re: DOS driver for RetroWave OPL3

Ugh ... Same problem. It reports "Retro wave device not found." and then a few seconds later "Internal stack overflow, System Halted" I'm also trying a separate power source: weeCee VCC -> N/C weeCee D- -> RW D- weeCee D+ -> RW D+ weeCee GND -> RW GND+weeCee GND PSU -> RW VCC PSU GND -> RW GND+ …

Re: DOS driver for RetroWave OPL3

Ugh ... Same problem. It reports "Retro wave device not found." and then a few seconds later "Internal stack overflow, System Halted" I'm also trying a separate power source: weeCee VCC -> N/C weeCee D- -> RW D- weeCee D+ -> RW D+ weeCee GND -> RW GND+weeCee GND PSU -> RW VCC PSU GND -> RW GND+ …

Re: DOS driver for RetroWave OPL3

Hmmm, it still doesn't work but I think the problem is between the Vortex86 (weeCee PC) and the RetroWave PotatoPi Lite. (ie. the RetroWave OPL3 is connected to the PotatoPi Lite) As I mentioned, when I plug the PotatoPi + OPL3 into the weeCee, the PC immediately reboots. I've tried using a USB Y- …

Re: DOS virtual filesystem

in PC Emulation
UPDATE: I've done the USB disk driver that mounts the disk or its partition as a disk drive, it DOS drive(partition) only so FDISK cannot detect the disk with out BIOS support. Found interesting stuff here: https://stackoverflow.com/questions/45891044/any-way-to-list-the-bios-drive-numbers-in-real- …

Re: DOS virtual filesystem

in PC Emulation
I've simply read the RDISK.ASM, it seems get DOS's "list of lists" (INT 21h AH=52h http://mirror.cs.msu.ru/oldlinux.org/Linux.old/docs/interrupts/int-html/rb-2983.htm ) which contains the NUL device driver header and its linkage (linked list), and add the new driver to the list. and other things. …

Re: DOS virtual filesystem

in PC Emulation
Thanks javispedro1! The background of my need is actually like this: I've done a USB (OPL3 sound) TSR driver with a custom USB stack, and the problem is exactly as you said. it will make existing USB devices(disks, keyboards, mice etc) not working since my driver will take control of the controller …

Re: DOS virtual filesystem

in PC Emulation
I used MS Client 3.0 and it's kinda working using Virtualboxs' NIC card (not through host-share but via normal network share). https://wiki.samba.org/index.php/Configuring_FreeDOS_to_Access_a_Samba_Share It's FreeDOS wiki but I tried use in on MS DOS 7.0 and it works for my NAS (linux server with …

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