Re: QEMU MESA GL pass-through for OpenGL games

Posted on 2020-05-26, 07:24

by

by kjliew

in Release Announcements

in Release Announcements

I was able to get a WineD3D working over QEMU MESA GL for accelerated Direct3D games on Window XP guest. This was from a past version of Wine-staging 1.8.6. Long story short, the entire Wine development is Linux focus and re-purposing any of its components for Windows VMs is challenging. So I tried …

---

Re: EMM386 and A20 gate control under Microsoft Virtual PC 2007

Posted on 2020-05-22, 01:52

by

by kjliew

in PC Emulation

in PC Emulation

It seems in both cases the DPMI configuration utility simply cannot control the virtual PC's A20 line, complaining that the A20 is already enabled and that it can't be disabled. This would imply that the emulator does not implement the behavior of A20Gate, whether it is the standard IBM PC AT …

---

Re: Difference between USB Legacy Support and Port 60/64 Emulation

Posted on 2020-05-21, 19:47

by

by kjliew

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There were 2 ways how USB keyboard and mouse support could be implemented for legacy software that pre-dated USB. The 1st method actually made use of a real IBM 8042 compatible KBC. Most SuperIO chips always had KBC and some chipsets (VIA, NVIDIA) even have KBC integrated. So in this scenario, …

---

OpenGlide Linux and QEMU KVM

Posted on 2020-05-19, 23:55

by

by kjliew

in OpenGLide Development

in OpenGLide Development

Hope to see OpenGlide would continue its development to be able to host some changes I made especially for QEMU. Since many people seemed to like this game, I have added fast path for QEMU shared LFB refill in OpenGlide to be able for QEMU to run the game at *FULL* speed with all details maxed out. …

---

Re: QEMU 3Dfx Glide Pass-Through (WHPX/KVM works!!!)

Posted on 2020-05-19, 19:26

by

by kjliew

in Release Announcements

in Release Announcements

On host i copied, dgVooodo2 files for its package to same folder as Qemu executable based on dgVoodoo2 documentation: hope that is right that is based on application x bit version not on OS bit version : these 32bit ones ( 3Dfx\x86) That was probably the last silly mistake. Why do you think we have …

---

Re: Pył, Pyl, Dust English language version

Posted on 2020-05-19, 01:43

by

by kjliew

in Release Announcements

in Release Announcements

With x86/PAT cacheability fix, I guess WHPX would probably have the same performance as HAXM.

---

Re: QEMU 3Dfx Glide Pass-Through (WHPX/KVM works!!!)

Posted on 2020-05-19, 01:36

by

by kjliew

in Release Announcements

in Release Announcements

I have copied fxmemmap.vxd + Glide files (dll) to C:\Windows\System. Im using file from 2020-03-09(modified) or 2020-03-17 (Created), im thing that they are last one. I everythime copied all 3 Glide dll to game folder, maybe i have to copy, only one, but which one? Could you please at least have …

---

Re: Pył, Pyl, Dust English language version

Posted on 2020-05-18, 21:45

by

by kjliew

in Release Announcements

in Release Announcements

You mean it needs an Intel CPU and probably a desktop, not laptop, PC? Fair enough, and thanks for all the help. It's much appreciated. Only if you want to use Intel HAXM accelerator for obvious reason. AMD CPUs have no viable accelerators for QEMU on Windows, other than Windows 10 x64 when …

---

Re: DOSBox speed vs real DOS PC?

Posted on 2020-05-18, 01:08

by

by kjliew

in DOSBox General

in DOSBox General

compiling my apps my k6-2-500 is way way faster than dosbox on my 4ghz intel i9700k running openwatcom on linux building the same app takes a couple of seconds... all running same version/build of openwatcom, building the same apps + libraries. dosbox on my 4ghz intel cant compete with my amd k6 …

---

Re: DOSBox speed vs real DOS PC?

Posted on 2020-05-18, 00:42

by

by kjliew

in DOSBox General

in DOSBox General

if you use games as examples, then DOSBox emulated VGA/VBE LFB on modern PCs simply destroys anything real DOS with VGA/VBE on PCI/AGP. High-speed / multi-channels DDR3/4 memory on modern PCs with over 4GHz of CPU is faster than anything on PCI/AGP from the past 10 years or so. If you simply …

---

Re: Things other then Voodoo ? (or I found some other old PCI video cards)

Posted on 2020-05-17, 06:58

by

by kjliew

in Marvin \ Video

in Marvin \ Video

Xs1nX wrote on 2020-05-17, 00:30: I bought mine when it came out, the one I have here is the same one infact. Good for you. If you ever decide to trade it, it can sell for more value than you had paid (without considering inflation) 😁.

---

Re: Things other then Voodoo ? (or I found some other old PCI video cards)

Posted on 2020-05-16, 22:50

by

by kjliew

in Marvin \ Video

in Marvin \ Video

PowerVR was a piece of crap during its time, sold at cheap price of $99. Since it was a crap, not many people actually bought it and so not many are available now for after-market sale. Today, it is a piece of collection due to the curve of supply vs demand. Many people wanted one but not many were …

---

Re: QEMU MESA GL pass-through for OpenGL games

Posted on 2020-05-16, 19:54

by

by kjliew

in Release Announcements

in Release Announcements

found this https://virgil3d.github.io That is the upstream QEMU solution for 3D acceleration. It's been working really well for several years now for games with official Linux OpenGL port or community source port. I was able to run Heavy Gear II and Shogo MAD Linux version at 60FPS locked from QEMU …

---

Re: QEMU MESA GL pass-through for OpenGL games

Posted on 2020-05-16, 10:36

by

by kjliew

in Release Announcements

in Release Announcements

Any chance you can have it accepted to be merged in mainline QEMU any time soon? I highly doubt it will be accepted. Many years back then, some guys (presumably from Intel) did similar things but no patch/source code was ever published. I only found a PDF presentation. . They did it for getting …

---

Re: QEMU 3Dfx Glide Pass-Through (WHPX/KVM works!!!)

Posted on 2020-05-14, 04:18

by

by kjliew

in Release Announcements

in Release Announcements

Are there any 3dfx games that support 32bit color? Glide3x PIXFMT extension is required for Glide games to support 32bit color. No native Glide games were known to query and use it. It was used by 3Dfx OpenGL ICD for VSA100 but OpenGL was another area that caused the downfall of 3Dfx where NVIDIA …

---

Re: Idea: Integrating Sound Blaster emulation in a DOS extender?

Posted on 2020-05-14, 03:23

by

by kjliew

in PC Emulation

in PC Emulation

You do not need to worry about hardware DMA such as (PC/PCI or DDMA), they are protocols for hardware to emulate 8237-like DMA on PCI. For software based implementation, you would simply emulate and implement states tracker for 8237 by trapping all its ports and figuring out the right moment to …

---

Re: Interstate '76 + Nitro Pack AiO Patch

Posted on 2020-05-10, 03:28

by

by kjliew

in Release Announcements

in Release Announcements

leileilol wrote on 2020-05-10, 01:14: I76's glide renderer gets really upset about >2MB texture memory. It's one of the few games that one memory-limiting checkbox in the Voodoo2 control panel's for. Not quite. I got it running and playable within QEMU with dgVoodoo2, which reports a Voodoo2 with …

---

Re: Interstate '76 + Nitro Pack AiO Patch

Posted on 2020-05-09, 23:14

by

by kjliew

in Release Announcements

in Release Announcements

There is always an advantage for games supporting 3Dfx Glide for the option to play the game from emulation such as DOSBox/QEMU through Glide wrappers such as dgVoodoo2. All kind of tricks/patches for making old games work on modern Windows OS are lengthy, stealthy and could be cumbersome, who knows …

---

Re: QEMU 3Dfx Glide Pass-Through (WHPX/KVM works!!!)

Posted on 2020-05-09, 20:05

by

by kjliew

in Release Announcements

in Release Announcements

Thanks, I just gave some hints to the guy who wanted to experiment with it on RPi4. At the moment, I don't play with any ARM-based SBC. From the info gathered from RPi4 forum, it seems that QEMU TCG x86->ARM binary translation is a magnitude slower than TCG x86->x86 and this will be the performance …

---

Re: Question related to memory management under DOS

Posted on 2020-05-07, 01:19

by

by kjliew

in DOSBox Development

in DOSBox Development

From Intel literature, the V86 mode of 386 implements the concept of multiple 8086 virtual machines each with its own isolated 1MB address space. We can argue day and night what defines a virtual machine, the features of 386 presenting itself as multiple 8086 for legacy software, to certain extent …

---