Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-07, 04:24

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

how dose one compile it? i really want to help test this The compiled binary is already provided. Just download SBEMU.zip from the other thread (page 21), or download the binary posted by crazii in first post of this thread. Decompress the file and follow the directions in the readme.txt. Let us …

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Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-07, 04:22

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

Dang, trying to remember what I was doing in 1996 to just turn on CD input to a card all the time, so if you were in DOS and stuck a CD and hit play on the drive, you just heard it, no messing. So I'd hope, that would stick in a game that just put out CD audio and hoped you had it turned on. Need …

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Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-06, 14:38

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

For built-in graphics yeah, but I recently tried DOS games on an RTX 3080 and they mostly worked great. So I'm guessing that using an external card may allow VGA modes? ... if you can get into legacy boot in the first place. The 3080 must have a Compatibility Support Module (CSM) which means it …

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Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-06, 07:03

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

But yeah, native DOS compatibility is well and truly on its way out. And honestly, it's amazing that it was preserved this long, when you think about it. But in the meantime, I'm also quite curious to see some records shattered with Quake and other games in DOS running on as modern as possible …

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Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-06, 06:48

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

Any idea what CPU/chipset is the last one with a normal BIOS? I've been trying to figure this out myself. Information is very scant and often conflicting. I remember using a 10th Gen core i5 laptop (Costco price mistake about 3 years ago), and it actually booted into legacy mode (DOS), but its VGA …

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Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-05, 15:56

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

Your latest revison of SBEMU works nearly perfectly now! All the problems I reported in the other thread have nearly magically disappeared. Real mode Apogee games work perfectly now with digital sound (ADPCM support was the ticket to success). No more stuttering audio in some games. I even got NFS …

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Re: Possibility to write OPL3 sound driver for protected mode games

Posted on 2023-03-05, 02:47

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

I tested Major Stryker it uses ADPCM, currently not supported yet. Interesting that there're a few games using ADPCM: https://www.vogons.org/viewtopic.php?p=921873#p921873 EDIT: tried Commander Keen4, I didn't see any SB port IO in the log. lol CK 4-6 (real mode) works very well for me. I think it …

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Re: Possibility to write OPL3 sound driver for protected mode games

Posted on 2023-03-05, 02:30

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

Yes, that was it. However, tried different values with DEBUG - had to go down to 0x240 to make the distortion disappear. Btw, I just tried an Audigy 2 - works as well. You mean 0x3ff doesn't work good but 0x240 works? weird. [/quote] Strange. Don't know if this also would apply to HDA, (I don't …

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Re: Possibility to write OPL3 sound driver for protected mode games

Posted on 2023-03-04, 02:04

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

Hi, I've turned off a switch of HDPMI, tested in VMWare Player and NFS works fine. Can you try this file to see if it works for you? HDPMI32i.zip The only problem is "quit current game" in ESC menu sometimes won't respond to an ENTER key. and dos freeze for once, after exiting, during multiple …

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Re: Possibility to write OPL3 sound driver for protected mode games

Posted on 2023-03-02, 14:28

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

I tested NFS, and found it prefers VCPI over DPMI and thus no io trapping occurs. You need load JEMMEX.EXE in you config.sys before JEMM386.EXE and then in autoexec.bat, AFTER hdpmi is loaded, run "JEMMEX.EXE NOVCPI" EDIT: I tested Screamer and it has sounds. I tried this, but am a little confused. …

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Re: Possibility to write OPL3 sound driver for protected mode games

Posted on 2023-03-02, 03:04

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

Update: 1. added option /k to set sample rate. /k22050 or /k44100, default 22050 Thank you for adding /K option. This (28-Feb) version seems most stable by far on Intel High Def. audio. I noticed sample rate of 44.1khz works well, however, you were wise to not make it default, since original SB / …

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Re: Possibility to write OPL3 sound driver for protected mode games

Posted on 2023-02-27, 12:30

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

Great news! We were not asking for a "clone" of MpxPlay, however just that the author is made aware of your fix to his code to make it work on some HDA chipsets. I am glad he agreed to it. However, it is hoped he will compile new DOS version with your fixes as described...

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Re: Possibility to write OPL3 sound driver for protected mode games

Posted on 2023-02-27, 05:04

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

Congratulations, keyboard issues seem fixed in your newest zip above (26-Feb). Outstanding progress. The generalized keyboard problems (freezing, missed keys / corrupted keys) under real mode games appear to be fixed as well. Wolf3d is completely playable, other Apogee games such as Major Stryker …

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Re: Tetris II 0.96 and update video released

Posted on 2023-02-26, 01:41

by

by zyzzle

in Release Announcements

in Release Announcements

It runs well on my systems with the patch above, and the only welcomed addition would be the -noMMX commandline parameter. I love that the game is hicolor vs every other Tetris implementation being only 256 colors for DOS. A Columns variety and / or "eliminate as many single colored-balls as …

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Re: Possibility to write OPL3 sound driver for protected mode games

Posted on 2023-02-25, 01:48

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

I also tried Duke 2 - a real mode game. Good news is that it runs stably and has music and Adlib effects. SB digital doesn't work, just some scratching gets through sometimes instead of a shot sound. Still not a bad result as it's a picky game if sound is concerned. That's the same behavior for me …

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Re: Possibility to write OPL3 sound driver for protected mode games

Posted on 2023-02-25, 01:38

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

It's weird that Prince of Persia 1 & 2 doesn't work on your PC. They are the very first games I tested on my 1.1GHz & 1.8GHz real machine, and they still work on mine, it might be possibly a CPU speed related problem. /T6 still uses 22050Hz, I think it will cover most scenarios, maybe an extra …

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Re: Possibility to write OPL3 sound driver for protected mode games

Posted on 2023-02-24, 03:41

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

I uploaded it here, or I hope so (I'm from DOS with Links, so I can't be sure until the comment is submitted XD). Well, JEMM386 can NOT be unloaded once loaded, at least, not by any means I'm aware of. It can be loaded in fly using loaders, like Loadsys (with LOADSYS /OD, because it's a device …

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Re: Possibility to write OPL3 sound driver for protected mode games

Posted on 2023-02-24, 03:08

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

crazii: I've not yet tested the new version (23-Feb) posted above, but I have some further observations on the emulation of your 22-Feb (replaced .ZIP with IRQ 0/1 hack): The keyboard problems continue, so it seems that leaving IRQ 0/1 alone doesn't help, for me at least (Intel HDA). Also, now, …

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Re: Possibility to write OPL3 sound driver for protected mode games

Posted on 2023-02-23, 05:00

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

I compiled the proper version of Jemm386 so I can sideload it in my normal setup in order to switch to a "Sound Blaster compatibility mode" on fly, which is far better than rebooting. Sounds very promising! Is it possible to upload your compiled JEMM386 binary here for us to test? If it enables …

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Re: Possibility to write OPL3 sound driver for protected mode games

Posted on 2023-02-23, 04:51

by

by zyzzle

in Marvin \ Sound

in Marvin \ Sound

I delete the this zip and uploaded a new one that skips IRQ0 & IRQ1 (timer & keyboard). Hope this one will make the keyboard work. You mean you deleted the .ZIP from 22.Feb binary posted last night, and replaced with new one which skips IRQ 0/1? This might fix the problems I also had in using arrow …

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