Re: Yamaha XG emulation at last
Posted on 2023-10-27, 20:06
BTW, I've just found this tweet: https://twitter.com/PhilBennett3D/status/1715178133887041770 or how part of the history was made...
Re: Yamaha XG emulation at last
Posted on 2023-10-27, 19:50
Are you sure there are any actual improvements since 0.260 was tagged? The only MU50 related commit I see when browsing the commit history is ... in that 0.260 release the WaveROM files are still called "xq730b0.ic9" and "xq731b0.ic10" and so it's for sure this change: https://github.com/mamedev/ …
Re: Guillemot Maxi Studio Isis DOS support
Posted on 2023-10-27, 19:34
A few paths I see: - dumping the firmware state from windows, and then loading it. the Linux ALSA driver author Pieter Palmers was using special tool he developed called "bochs-spy" ("bochs-2.0.1-spy.tar.gz" and "pcidrv-0.1.tar.gz") for the BOCHS virtual machine and to spy what Windows driver is …
Re: MDR-401 cards - are they really existed or are they an elaborate hoax?
Posted on 2023-10-27, 13:27
there is more than 1 way to make something even if it uses more or less the same components true, but more or less the same components means the difference could be just in the connections between them and someone that is not complete zero as me when it comes to digital electronics design can …
Re: MDR-401 cards - are they really existed or are they an elaborate hoax?
Posted on 2023-10-27, 12:48
another very obvious difference that doesn't require hours to track it down: the PAL chip counting from right-to-left ("right" - being the bracket): 3rd pin is not connected on MQ card to an ISA gold-finger and it's connected on MDR401 card to an ISA gold-finger. considering the PAL chip is sending …
Re: MDR-401 cards - are they really existed or are they an elaborate hoax?
Posted on 2023-10-27, 12:19
that there is probably minor connection difference between the two boards (if I have more spare time looking at pictures from the 2 boards probably I will even be able to locate those differences - even currently I think it might be just the extra Address lines on the PROM like "A15" that don't …
Re: MDR-401 cards - are they really existed or are they an elaborate hoax?
Posted on 2023-10-27, 12:09
the answer is that MDR is it's own thing but its own thing invented in 2022 or its own thing reproduced from something that existed in 1990, i think it's the same question from the very beginning and nothing actually has changed - all we proved so far is that there is probably minor connection …
Re: MDR-401 cards - are they really existed or are they an elaborate hoax?
Posted on 2023-10-26, 22:16
Edit: Music quest rom does nothing, debug returns all FF. maybe the wiring between the PAL chip and the Zilog is not the same. also, there are no any identifiable strings in the ROM like "(C)opyright", etc. so, unfortunately, no any clues and answers. [EDIT] or maybe the upper Address lines of the …
Re: Yamaha XG emulation at last
Posted on 2023-10-26, 18:19
BTW, if someone wants to build MAME from source code - it's very easy to be done in Linux, I described the process here: Re: MAME Roland MPU-401 Emulator So, you don't really need to wait for any official releases, if you're OK to use Linux.
Re: Yamaha XG emulation at last
Posted on 2023-10-26, 17:43
The 2 WaveROM files are indeed in a 0.260 pack. I was previously looking in 0.259 which didn't have them. Thanks! yep, but it's a little bit messy at the moment, because "xq730b0.ic9" and "xq731b0.ic10" is calling the files upon DB50XG chip location, on DB60XG/XR385 they are IC6 and IC7 and the …
Re: Yamaha XG emulation at last
Posted on 2023-10-26, 17:25
BTW, it seems MAME 0.260 is now released as well, I don't know if the level of support is the same as what I built from the source code and showed in the previous posts - maybe that is scheduled for the 0.261 release, I am yet to test the 0.260 release... yes, MAME release 0.260 is working not the …
Re: Yamaha XG emulation at last
Posted on 2023-10-26, 17:12
I must be blind, I can't seem to find xq730b0.ic9 or xq731b0.ic10 in any of the mame ROM packs I don't know on this as it took me like few minutes to locate them with Google: * "MAME 0.260 ROMs" : contains the 2 WaveROM files * MAME ROM packs since like forever contain the Control ROM v1.04 from …
Re: Yamaha XG emulation at last
Posted on 2023-10-25, 23:28
Any recording of it in action either with audio or also video? I am too lazy to do that, but the command line is: mame mu50 -midiin .mid -aviwrite video.avi that will creative video with everything that is happening on the MU50 Emulated Display with the sound of the MIDI file playing.
Re: Yamaha XG emulation at last
Posted on 2023-10-25, 23:08
How does this fare compared to the S-YXG50 VSTi plugin? Is any difference noticable to the ear of the average user? I already answered to that question, in big details even in my initial post and subsequently in very simple words here: https://www.vogons.org/viewtopic.php?p=1205363#p1205363 however …
Re: The Soundblaster DSP project
Posted on 2023-10-25, 13:20
SB16 does need additional components: Notably the mixer functionality yeah and for example here: https://github.com/crazii/SBEMU/pull/36/commits/b7e66c2d1f126aa278a4071bc6f1f5fc2b334847#diff-d407aa936037a01eb6e0549a1fb50e52be167cd62beb222b01eec12de34922db you can see that the mixer registers are …
Re: The Soundblaster DSP project
Posted on 2023-10-25, 12:56
So does this mean if we put this firmware in our own 89C51 onto a Snark Barker, that we have ourselves a Sound Blaster card? I am not sure what you mean, that thread is about SB16 DSP V4.x, AFAIK Snark Barker is not SB16 card and the Creative card that was made upon had DSP 2.x, which was dumped a …
Re: MDR-401 cards - are they really existed or are they an elaborate hoax?
Posted on 2023-10-25, 12:12
keropi wrote on 2023-10-25, 09:07: if the point is to get as cheap as possible MQ PCMIDI thanks, but my main goal is still an answer: what MDR-401 is as hardware and as ROM? we already know as ROM it's not MQ.
Re: Yamaha XG emulation at last
Posted on 2023-10-25, 04:01
Hope that this synthesizer code also appears elsewhere in a .. more portable way. I hope the same, but I am not optimistic, because MAME made us Intelligent mode MPU-401 emulator and even dumped the real Roland ROM over 10 years ago: https://www.vogons.org/viewtopic.php?f=62&t=96744 and yet the …
Re: MDR-401 cards - are they really existed or are they an elaborate hoax?
Posted on 2023-10-25, 00:31
looking at the MQ schematic here: Re: Music Quest PC MIDI Card MPU IH9MQ9 : info , drivers and tests it's not that many lines, i.e. connections that need to be checked to confirm if there is any difference.
Re: EEPROM Experts - please, help!
Posted on 2023-10-24, 20:56
giantclam wrote on 2023-10-24, 06:11: If it were maskrom, https://www.mxic.com.tw/Lists/Datasheet/Attac … 2Mb,%20v3.5.pdf thanks, that one seems to be a good match, too bad I cannot find it anywhere in stock in the necessary 44-SOP package to buy and try it out.
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