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TAG last won the day on May 18 2015
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Awesome! Thanks for sharing, I'll have to give it a try.
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Just saw this: https://github.com/gtaylormb/opl3_fpga
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I was able to get it to compile by changing: #include "zstdio.h" to #include "stdio.h" in HardwareSerial.h and ptplay.cpp
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TAG started following SoundBlaster FM HDL, Designlab 1.0.5 sketch compilation problem., Demo of Atari TIA sound as a wishbone peripheral and and 1 other
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A wishbone peripheral of the sound generation portion of the Atari TIA chip. Example sketch is a port from Teensy to ZPUino of the Atari TIA synth by Brian Peters: http://www.worldwidewebside.com/brianpeters/?page_id=198
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Where to start for adding more chips to the RetroCade Synth
TAG replied to TAG's topic in RetroCade Synth
https://youtu.be/horZRGA5I24 -
I used the Designlab tutorials to make a wishbone peripheral out of the sound portion of the argh2600 project. Here is a quick demo: https://youtu.be/tuqGfEaryp0
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It looks to me like the code on OpenCores is more complete even though it specifically calls out the OPL2 as not fully working
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Where to start for adding more chips to the RetroCade Synth
TAG replied to TAG's topic in RetroCade Synth
Trying to remember where I left off with this. If I recall I had a .nsf player and there seemed to be some timing issues and I wasn't sure if the problem was with the player or in the HDL. Would like to get a VGM player working to both test the NES peripheral as well as being a general purpose player for other chips. -
This project has some arduino source that might be a good starting point: http://www.smspower.org/forums/11547-HardwareVGMPlayerUsingSN76489Chip
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Have you seen this device?: http://gimic.net/index.php?Getting%20Started%20with%20G.I.M.I.C Looks like it has a VGM player, doesn't appear to be open source from what I can tell though.
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I just discovered the VGM file format: http://www.smspower.org/Music/VGMFileFormat Seems like a VGM player would be a good fit for the Retrocade synth since a single player could be used for many chips.
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Thanks, I'll dig in and see if I can make use of it
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On this page: http://audio.gadgetfactory.net/index.php?n=Main.YM2149MIDISynthesizer there is this quote: "There is open source VHDL for NES, Atari 2600, SoundBlaster FM synth, and other sound chips that is available." I have found HDL for NES and Atari 2600, haven't been able to find any FM chips. Anybody have a link?
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Where to start for adding more chips to the RetroCade Synth
TAG replied to TAG's topic in RetroCade Synth
I submitted a pull request for my library for the 2A03 and wishbone peripherals for both the 2A03 APU and the Atari TIA -
Where to start for adding more chips to the RetroCade Synth
TAG replied to TAG's topic in RetroCade Synth
I made a basic Ctrlr panel to control/test the chip via midi: http://ctrlr.org/ I looked at the flowstone retrocade control panel, but there seemed to be a learning curve there and I had already used ctrlr. I am working through the details of how midi should control things, and using NSF files to try and identify any issues with the chip implementation. Once I get through some of that I'll make a video.