SoftMPU on FPGA-based 486 & USB midi

Posted on 2019-12-10, 14:41

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by bjt

in SoftMPU

in SoftMPU

In the last few years people have been playing with SoftMPU in all kinds of weird and wonderful ways. Though this was interesting Game : GODS (Bitmap Brothers) - Roland MT-32 Sound - MiSTer FPGA - ao486 DOS https://www.youtube.com/watch?v=EpbSQcNVe9I

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Re: SoftMPU project needs your help! (game & sound card testing)

Posted on 2019-12-10, 13:04

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by bjt

in SoftMPU

in SoftMPU

Yes. I haven't forgotten robertmo 😀 I might have time over Xmas to try Corporation and Mechwarrior! I actually only have my 486 laptop with SB16 left now but that should be good enough.

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Re: Frederik Pohl's Gateway and SOFTMPU = MT32 screen messages only

Posted on 2019-12-10, 13:03

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by bjt

in SoftMPU

in SoftMPU

Gateway is really finicky. I would try a slowdown program and also the CT2940 to see if there's any change.

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Re: SOFTMPU hung?

Posted on 2019-12-10, 12:51

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by bjt

in SoftMPU

in SoftMPU

I haven't had any reports of success with the AZT2320, however the faster machines are often problematic. If a slowdown utility doesn't help I would try something from the compatibility list e.g. SB16.

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Re: *START HERE* SoftMPU 1.91 - Software Intelligent MPU-401 Emulator

Posted on 2019-12-10, 12:36

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by bjt

in SoftMPU

in SoftMPU

appiah4 wrote: Is there any particular reason why it won't work with MS-DOS 5.0 and its EMM386? 😐 Yes, the earlier versions of EMM386 don't have the port-trapping interface that SoftMPU relies on.

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Re: SoftMPU project needs your help! (game & sound card testing)

Posted on 2019-12-10, 12:15

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by bjt

in SoftMPU

in SoftMPU

And some more years go by 😀 Thanks all for compatibility info, I have updated the supported cards list.

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Re: SoftMPU project needs your help! (game & sound card testing)

Posted on 2019-02-05, 10:56

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by bjt

in SoftMPU

in SoftMPU

bjwil1991 wrote: And when I'm done using the game and software, I type in the TSR removal command to close out the SoftMPU software. While this may free the memory used by the TSR, it won't return the RTC, PIC and GDT to their original state and will probably result in a crash later on.

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Re: Best laptop for DOS/Win9x gaming?

Posted on 2019-01-08, 16:48

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by bjt

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Presumably it's a 755C with a somewhat rare PCMCIA Roland SC-55 card http://www.thinkwiki.org/wiki/Category:755C Very, very nice, especially the speakers, but isn't it a bit uncomfortable to rest your hands on the keyboard when the laptop is so damn tall ? Yeah you wouldn't want to write a book on …

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Re: Retro Rig Photo Thread

Posted on 2018-12-31, 17:32

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by bjt

in Marvin \ System Specs

in Marvin \ System Specs

It's a 370C with a Dock I. DX4/75 with 20MB, Colour TFT, CF hard disk, SB16 in the dock with a SCSI CDROM.

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Re: Best laptop for DOS/Win9x gaming?

Posted on 2018-12-31, 08:08

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by bjt

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'll just leave this here (AC only though)

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Re: Retro Rig Photo Thread

Posted on 2018-12-30, 22:34

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by bjt

in Marvin \ System Specs

in Marvin \ System Specs

Away on holiday for New Year, brought my (trans)portable retro gaming rig.

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Re: Bought these games today

Posted on 2018-09-04, 22:29

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by bjt

in Milliways

in Milliways

US & UK versions of The 7th Guest

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Re: SoftMPU project needs your help! (game & sound card testing)

Posted on 2018-04-02, 19:40

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by bjt

in SoftMPU

in SoftMPU

Cool 😀

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Re: *START HERE* SoftMPU 1.91 - Software Intelligent MPU-401 Emulator

Posted on 2018-04-02, 19:38

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by bjt

in SoftMPU

in SoftMPU

That is correct.

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Re: Lotech Tandy Soundboard - get it finished.

Posted on 2018-01-22, 12:59

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by bjt

in Marvin \ Sound

in Marvin \ Sound

I have a populated (not working) Lotech Tandy board if it would help you. Didn't spend too much time troubleshooting it because I have another working board. You can have it for the price of postage. I suspect it might have a bad via.

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Re: SoftMPU and MPU-401 on LPC interface

Posted on 2018-01-22, 11:40

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by bjt

in SoftMPU

in SoftMPU

Just a heads up that this change made it into 1.91. The MPU detection no longer requires ACK to be returned. Let me know if there's any further issues.

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Re: *START HERE* SoftMPU 1.91 - Software Intelligent MPU-401 Emulator

Posted on 2018-01-22, 11:40

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by bjt

in SoftMPU

in SoftMPU

Yes, it requires interrupts. Not sure if triggering the interrupts from software would work. There might be a problem if the game's ISR sends a non-specific EOI to the 8259.

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Re: *START HERE* SoftMPU 1.91 - Software Intelligent MPU-401 Emulator

Posted on 2018-01-21, 20:45

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by bjt

in SoftMPU

in SoftMPU

New release out now - please see the first post for details. Other than the major fixes mentioned, this release removes the requirement to specify a Sound Blaster address and interrupt in MPU-401 mode. If a Sound Blaster isn't specified, SoftMPU will run in non-interrupt mode, and game compatibility …

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Re: DreamBlaster S2P : Small form factor General MIDI on parallel port

Posted on 2018-01-17, 16:17

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by bjt

in Marvin \ Sound

in Marvin \ Sound

This is really cool, nice one :cool: Unfortunately, many/most GM-supporting games run in protected mode via DOS4GW or similar, and the port-trapping technique used by SoftMPU won't work with those. SoftMPU was originally aimed at intelligent-mode MT-32 games which are all real mode. Virtualising …

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Re: SoftMPU and MPU-401 on LPC interface

Posted on 2018-01-13, 20:47

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by bjt

in SoftMPU

in SoftMPU

Cool, I'll add it to the compatibility list.

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