Re: Knight Force copy protection
Posted on 2020-06-24, 16:47
Here's an expanded discussion about Titus's SQZ format: http://www.shikadi.net/moddingwiki/Titus_Inte … SQZ_Compression The perl implementation at the bottom of the page should work.
Re: Horrible Sound: Blues Brothers Jukebox Adventures
Posted on 2020-06-23, 19:50
Unfortunately hacking the the DC offsets in Blues Brothers Jukebox Adventure using the suggested hack for Prehistorik 2 doesn't work quite as well, and the audio is still left sounding broken, but in a different way. Also similarly, the 4-bit DMA transfer mode for BB JA also isn't nearly as …
Re: Horrible Sound: Blues Brothers Jukebox Adventures
Posted on 2020-06-22, 15:04
I also suspect that if either game can be hacked to request a 4-bit DMA transfer mode (or maybe 3-bit DMA) instead of the current 0x14 Single-Cycle 8-Bit DMA mode, then the audio stream will be similarly DC-corrected per the ADPCM codec; however I doubt we can fix the mono @ 8kHz aspect given that's …
Re: Horrible Sound: Blues Brothers Jukebox Adventures
Posted on 2020-06-22, 13:56
Akuma - excellent find! Opening your FLAC in audacity shows its waveform is brutally DC shifted in the negative: Screenshot at 2020-06-22 06-26-53.png So this explains why louder sounds will crackle out (when their samples hit the wall in the negative direction), while in the positive positive …
Re: Startup audio 'pop' in Monkey Island 1 (CDROM edition) with sbtype = sb16
Posted on 2020-05-25, 06:41
Good advice - and now that you mention it, I do remember some games really mangling the speaker on start up! Around '93 I upgraded to a pair of speakers with a power-button on the front and wised-up to those games.. only powered on the speakers after the game was up 😀
Re: Startup audio 'pop' in Monkey Island 1 (CDROM edition) with sbtype = sb16
Posted on 2020-05-25, 05:19
ripsaw8080, thanks for the explanation. Very interesting! I guess as part of the detection, some games (or drivers) verify operability using the small DMA transfer. (Reminds me of those $1 credit card charges (and immediate refund) used by some smaller websites just to check that the entire payment …
Startup audio 'pop' in Monkey Island 1 (CDROM edition) with sbtype = sb16 [SOLVED]
Posted on 2020-05-25, 04:13
When DOSBox is set to sbtype = sb16 , the attached audio sawtooth 'pop' is generated at the ~4s mark during start up of the CD-Audio version of Monkey Island 1. (Graph units: x-axis is time in seconds, y-axes are left and right channels showing signed 16-bit magnitude sample values). This doesn't …
Re: D-Fend Reloaded (DOSBox frontend)
Posted on 2020-05-08, 23:47
Dosbox Game Launcher is actively supported by rcblanke, and is getting regular updates for various fork features. Also can scrape metadata and box art, which is really nice. DOSBox Game Launcher (DOSBox Frontend)
Re: Attempting to find out how Gunmetal (1998) works via DosBox
Posted on 2020-04-19, 12:52
Very interesting Quadpixels. I can see lots of avenues where this can go as.. visualizing, querying, game-specific resource moding, locking or setting values (ie: cheat system), and so on! Looking forward to following your progress; keep us posted!
Re: How to get your copy of Half-Life 2 AND THE EPISODES working on XP!
Posted on 2020-04-08, 04:08
bionicle_159, With some countries using force to keep people in their homes, it earily reminded me of the Combine Civil Protection service. hqdefault.jpg Back when I played HL2 I didn't pay much attention to their chatter.. but this video revealed how much work Valve put into this dystopian police …
Re: California Games 2 adlib support and Golden Axe MT32 support
Posted on 2020-03-22, 08:13
Thanks for digging up those references ripsaw8080! Indeed; turns out I have 1.2.1 but without AdLib support - c'est la vie 😀
Re: California Games 2 adlib support and Golden Axe MT32 support
Posted on 2020-03-22, 01:35
Here's the version I'm working with: strings CGII.EXE | grep -i version CALIFORNIA GAMES II Version 1.2.1 4/3/91 If anyone has the original floppies, do they contain adlib.dat? The Golden Axe video looks like it's from megadrive, which had a midi chip. People have ripped the midi content from ROMs …
Re: California Games 2 adlib support and Golden Axe MT32 support
Posted on 2020-03-21, 23:19
Looking for strings in CGII.EXE, you will find this segment: .^PSQRVW _^ZY[X r1tC PSQRVWU ]_^ZY[X adlib.dat !"$%& !#%'( !"#$%&(* !"#%')+- !$%&')+-/0 !#%&')+-/02 However, my version does't include the adlib.dat file; maybe there are some that did?
Re: Modem emulation issues
Posted on 2020-03-19, 17:26
Nicknine, even though ATNET1 works for small downloads, I have also confirmed that large downloads (ie: DOOM shareware, ~1.2 MB), fails after 5+ minutes downloading; like you've suggested. This was confirmed when downloading DOOM1_2A.ZIP from bbs.dmine.net:24, using DOSBox at 6000 cycles running …
Re: Source code for Dominus's DOSBox SDL2 macOS 64-bit
Posted on 2020-03-11, 15:32
It's a loss my friend; no one won, and RobinW is not further in modifying and building your .dmg package regardless. Why not just upload your exact source tree and scripts sitting on your HDD that you build with? Your call though. Will leave it at that.
Re: Source code for Dominus's DOSBox SDL2 macOS 64-bit
Posted on 2020-03-11, 15:07
fine... well done... if anyone needs a snapshot ask kcroft. I'm done. You've decided to taken down your OS X binaries instead of complying with the license that gave you the right to create them in the first place. Wow. Seriously? Edit: I shouldn't have said that last part; sorry; it's not helping …
Re: Source code for Dominus's DOSBox SDL2 macOS 64-bit
Posted on 2020-03-11, 14:35
pffffff pfffff ... would be a legit response if DOSBox was BSD-licensed :-) But yeah.. the Software Freedom Law Center (SFLC), even wrote a guide about build scripts and steps needed to get to the distributed binary: https://www.softwarefreedom.org/resources/2008/compliance-guide.html 4.2.2 …
Re: Source code for Dominus's DOSBox SDL2 macOS 64-bit
Posted on 2020-03-11, 13:42
I'll paste this as-is: --- The GNU GPL demands that as soon as you distribute GPL licensed software in executable format you make available the "complete corresponding source code". The GNU GPL also contains a definition of this term: The source code for a work means the preferred form of the work …
Re: Pyrosaurus - Validate modem configuration and use case
Posted on 2020-03-06, 03:45
You’re right, the game probably is waiting for some specific sequence of codes being sent from the server it expects to connect to. If you can disassemble DOS programs (SoftICE or other tools), you could inspect its current position when it's sitting there waiting, and maybe discover the hardcorded …
Re: List of Web Browsers For All Operating Systems
Posted on 2020-02-29, 16:30
roytam1 wrote on 2020-02-29, 13:20: https://github.com/roytam1/RetroZilla/commit/ … 203fb1ceb933cbf but building on non-win32 is totally untested. Thanks; will eventually give this a try. The last time I compiled Navigator was in ~2001 on a P3-700 Gentoo server; and it took forever 😀
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