endre1952
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« Reply #40 on: February 15, 2011, 01:32:16 PM » |
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How accurate is the Game Blaster emulation in DosBox? I've been trying to get a Sound Blaster 1.5 for easy CMS upgrade, but perhaps it isn't worth the effort...
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TheMAN
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« Reply #41 on: February 15, 2011, 06:43:48 PM » |
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I think there's an SB1.5 on ebay right now
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Mau1wurf1977
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« Reply #42 on: February 15, 2011, 08:39:16 PM » |
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How accurate is the Game Blaster emulation in DosBox? I've been trying to get a Sound Blaster 1.5 for easy CMS upgrade, but perhaps it isn't worth the effort...
I would say extremely accurate, just like the OPL emulation. |
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endre1952
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« Reply #43 on: February 15, 2011, 08:45:26 PM » |
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No shipping to Europe, and I don't want to pay 75 USD for it either. I have a Sound Blaster 2.0, but will likely not find the upgrade chips for it.
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Shadow Lord
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« Reply #44 on: February 15, 2011, 09:06:02 PM » |
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SB 1.5s are real easy to find. Shipping to Europe might be problematic but if you get the card at a low enough price then it maybe worth it. I have a 1.5 w/ CMS chips and a 2.0 w/o the chips. Meowurf has the CMS chips but he isn't willingto sell them even though he doesn't have 2.0. Oh well, either one will show up or dos box will be the way to go!
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Wishes: 1. IBM 7531 2. SB 1.5 DSP 2.00 Kit 2. SB 2.0 C/MS Kit 3. Copy II PC EOB (w/ toggle switch on the back)
If you have the above for sale please PM me. Thanks!
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TheMAN
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« Reply #45 on: February 16, 2011, 03:20:57 AM » |
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I find the OPL emulation in dosbox a little off... it is emulation after all... it doesn't sound exactly like a real YMF262  But regardless, it is pretty good though. And yeah, I realize that DOSbox has the CMS emulation, but what if we want to run this on a machine?  |
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Mau1wurf1977
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« Reply #46 on: February 16, 2011, 06:05:17 AM » |
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I find the OPL emulation in dosbox a little off... it is emulation after all... it doesn't sound exactly like a real YMF262 But regardless, it is pretty good though. Got any recordings to show the difference? Make sure you increase the sample rate settings of mixer and OPL. I played around with a few Soundcards and for example with clone chips from ESS and Creative, you can clearly hear a difference. But DOSBox IMO is pretty much perfect. And yeah, I realize that DOSbox has the CMS emulation, but what if we want to run this on a machine? As discussed, SB 1.5 + CMS chips is your best option. |
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« Last Edit: February 16, 2011, 06:24:31 AM by Mau1wurf1977 »
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TheMAN
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« Reply #47 on: February 16, 2011, 07:37:31 AM » |
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I do have an SB 1.5... got lucky with that at a swap meet nearly 10 years ago
I still need to get around to buying those expensive chips
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Shadow Lord
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« Reply #48 on: February 16, 2011, 05:07:34 PM » |
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I do have an SB 1.5... got lucky with that at a swap meet nearly 10 years ago
I still need to get around to buying those expensive chips
Not sure what you consider expensive my friend, but I picked up two a few weeks back w/ shipping (in the US) for $13.45. |
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« Last Edit: February 16, 2011, 10:25:23 PM by Shadow Lord »
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Wishes: 1. IBM 7531 2. SB 1.5 DSP 2.00 Kit 2. SB 2.0 C/MS Kit 3. Copy II PC EOB (w/ toggle switch on the back)
If you have the above for sale please PM me. Thanks!
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TheMAN
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« Reply #49 on: February 16, 2011, 09:23:06 PM » |
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link? the ones I saw a couple of days ago was twice that! maybe I just suck at searching
for 10 bucks, I'll get it!
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« Last Edit: February 16, 2011, 09:25:01 PM by TheMAN »
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TheMAN
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« Reply #51 on: February 16, 2011, 09:41:06 PM » |
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right, and that's what I put in to search on ebay a few days ago... there were only 2 auctions that showed up, and neither was at the great price you mentioned
can you please post a link of your auction?
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Mau1wurf1977
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« Reply #52 on: February 16, 2011, 10:06:26 PM » |
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It's not in my ebay system any more (too long ago)...
Google for that chip and see if you find another seller?
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Mau1wurf1977
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« Reply #55 on: October 26, 2011, 02:25:36 AM » |
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Never say never So what devices / tools does one need to produce these chips? |
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Shadow Lord
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« Reply #56 on: October 26, 2011, 03:01:22 AM » |
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I saw that too Cloudschatze. I am super excited. Did you provide him your chip for the reverse engineering? I just want to make sure he had a good source/original ;0. So is the BIN file he provides the flash code for the chip? If so, it is much smaller then I expected. However, it was apparently complex enough to thwart people so far. Chuck(G) is on a whole different level of course. The man is amazing. I think a simple how-to is needed (you know part # for the GAL, what kind of burner to use, etc) for those of us less electronically inclined. Chuck talked about a few "tweaks" that are needed to make a GAL worked so I am not sure we are quite at the point where you can just flash the code and be done. But maybe I am wrong! |
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« Last Edit: October 26, 2011, 03:11:10 AM by Shadow Lord »
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Wishes: 1. IBM 7531 2. SB 1.5 DSP 2.00 Kit 2. SB 2.0 C/MS Kit 3. Copy II PC EOB (w/ toggle switch on the back)
If you have the above for sale please PM me. Thanks!
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Cloudschatze
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« Reply #57 on: October 26, 2011, 04:15:15 AM » |
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Did you provide him your chip for the reverse engineering? Indeed. So is the BIN file he provides the flash code for the chip?
My understanding is that the BIN file is the "brute-force" pin readout. To program a new chip you'd need to take the EQN information, provided on Part 11 of the blog post, and run that through EQN2JED to produce a JEDEC file. |
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endre1952
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« Reply #58 on: October 26, 2011, 03:09:36 PM » |
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If somebody made me a chip, I would be interested. I still have my SB 2.0 around.
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Stefan_L
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« Reply #59 on: October 27, 2011, 02:56:52 PM » |
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Charles MacDonald has made a PAL reader that can read protected PAL's (not registered) in case any other PAL's need to be read http://cgfm2.emuviews.com/elec/pal.php |
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« Last Edit: October 27, 2011, 02:57:15 PM by Stefan_L »
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