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Re: Vortex2 OPL3 Project

Posted on 2015-06-28, 04:25

in Marvin \ Sound

in Marvin \ Sound

It appears that IDA didn't export out any of the local labels or local variable names properly, so I've updated the file manually and reattached it. It should be 1:1 progress with where I left off, but I didn't check it 100% to be sure. Just be aware that if you use the updated version you won't …

Re: Programming DOS games

Posted on 2015-06-24, 04:35

in Milliways

in Milliways

No no no, you're doing it all wrong here :) If you want to walk in the shoes of those before you, you'll need to learn what they knew. However a far easier route exists. Start programming your game for windows and leverage the modern tools available for it. Then when your game is complete and you …

Re: Vortex2 OPL3 Project

Posted on 2015-06-22, 20:24

in Marvin \ Sound

in Marvin \ Sound

The OPL3 emulation is functional but *quite* bad. Same with my TB:Santa Cruz, it's almost like they are using the same EMU base code... (Speaking of which) I've digressed in the project to look at writing a general 16-bit ASM to pseudo C helper tool, as manually porting all this is a bit tedious for …

Re: Guess the game!!

Posted on 2015-06-19, 00:12

in Milliways

in Milliways

Ding Ding Ding! Turnabout it is, you got it! We spent a few days typing in all that code and had bugs everywhere so I never got past level 8. It was this game or Hacker I spent most my time on as a kid 😀 (typing them in that is, never got whirlybird working...)

Re: Guess the game!!

Posted on 2015-06-18, 22:06

in Milliways

in Milliways

Not Indiana Jones related either. It's one of the type in games from Compute Gazette 1985 issue. The premise is you must move along the green lines closing them in like doors around whirligigs which chase you.

Re: Guess the game!!

Posted on 2015-06-18, 21:05

in Milliways

in Milliways

Nope, not Crossroads.

Re: Guess the game!!

Posted on 2015-06-18, 20:56

in Milliways

in Milliways

Might be easy to those who love C64 and Compute! Gazette type in games 😉 Filename C64Game.png File size 3.76 KiB Views 1661 views

Re: Guess the game!!

Posted on 2015-06-18, 09:00

in Milliways

in Milliways

Star Trek: First Contact

Re: EAX and old laptop

Posted on 2015-06-12, 19:45

in PC Emulation

in PC Emulation

Has anyone opened one to see if it actually has the EMU10k2(.5) cpu in it? I was under the impression that creative just placed a codec in there and did the rest via software.

Re: Recommend some sound cards that are NOT the following:

Posted on 2015-06-09, 08:07

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm enjoying my Turtle Beach Santa Cruz. Probably the best contender to the Aureal Vortex2 cards.

Re: C compiler w/dos .com as target

Posted on 2015-06-09, 08:04

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I believe it was written with TurboC++ 4, but I am not 100% sure. I see a lot of routines which don't appear hand written. I think it would be nice to have a version written in C so non-asm coders can understand this bit of soundcard history. No reason we couldn't use ASM where it's needed most. It …

Re: C compiler w/dos .com as target

Posted on 2015-06-08, 10:30

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Looking at it now, seems nice. I also found that my TurboC++ 6 will do com as well, but no dos libs included. I'm liking open watcom so far.

Re: Vortex2 OPL3 Project

Posted on 2015-06-08, 10:21

in Marvin \ Sound

in Marvin \ Sound

Thanks for the interest. I've exported it out to IDA5 free so it can be brought into any IDA version.

Re: C compiler w/dos .com as target

Posted on 2015-06-08, 00:53

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for the reply, I'll check it out.

C compiler w/dos .com as target

Posted on 2015-06-08, 00:09

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello everyone. As a few of you already know, I've started reversing the Aureal AU30DOS.com TSR with great success so far. What I'm after now is a C compiler which can target dos .com files, and ideally has some dos lib support files, IO access, port read/writes and whatnot. I can just rewrite the …

Re: Evolution of sound cards with Ultima VI

Posted on 2015-06-01, 20:08

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

But but! I can't hold the emulator in my hands and kiss it goodnight, knowing it will be there on my desk in the morning waiting to greet me with its warm tones :p

Re: Evolution of sound cards with Ultima VI

Posted on 2015-06-01, 20:00

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

sliderider wrote: The LAPC-I still sounds better than a lot of modern sound cards. That's because the companies in charge of making modern soundcards forgot what soundcards were all about 😀 who needs lame hi-fi anyways, gimme the brzzzzghggghggg of a SID anyday. also super cool vid!

Re: STB Rio Grande 16bit ISA Memory Expansion 1.5MB

Posted on 2015-06-01, 04:25

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can't even locate product info on waybackmachine, instead I did come across a seller Here Which "might" have the dip switches in the correct patterns, as it's mentioned to be a working pull from a 286 hp system. No archived manuals anywhere it seems 🙁

Re: Vortex2 Phoenix Project

Posted on 2015-06-01, 02:53

in Marvin \ Sound

in Marvin \ Sound

[Weekend Update] All functions are mapped out and given names (based on my best guess as to what they do) 100% of all variables/flags given functional names Adding comments to all routines IO address and what the code does in general Found new and previously unknown Vortex2 addresses for SBFM, …

Re: Vortex2 Phoenix Project

Posted on 2015-05-28, 22:03

in Marvin \ Sound

in Marvin \ Sound

Good timing for a post :) I just finished up my semesters CSIS courses and now have time again to work on this. Last night I made great progress mapping out the AU30DOS.com file in IDA. There is about a weekends worth of stuff left to do in the code, and then it should be fully disassembled and …

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