I don’t use Windows XP very often, but when I do…

(this is a guest post by Tenox)

I recently needed to install Windows XP. Because I don’t do that very often nowadays I decided to document the “pro way” of doing it.

First you should consider getting a volume license copy of Windows XP CD because it doesn’t require activation over the internet. The process below will work with any version, but it will require activation.

Then you need to download and install nLite which lets you add SATA/AHCI, network, display, audio, drivers and customize a fully unattended installation, including the product keys, and some tweaks like autologin, themes or show extensions/hidden files in explorer. Create your own bootable XP .iso file. You should probably test it in VMware/Vbox/Qemu first to see that all the settings are to your liking and the setup prompt screens are gone.

Second you need WSUS Offline Update, version 9.2.1 (which is the LAST version supporting Windows XP). It will let you roll out your own Service Pack 4 for Windows XP, including all the updates and goodies like .NET framework, Silverlight and DirectX updates. Create your own SP4 .iso file.

Booting Windows XP from a regular USB pen drive is notoriously difficult, so this is where ISOSTICK comes handy. Put both of the iso files on to the stick, insert to the PC and watch the magic happen.

It’s quite easy to integrate the SP4 in to the boot cd itself, but then it outgrows size of a physical CD, which is not a big deal with ISOSTICK, but I don’t mind installing the updates in a second step.

Finally if you need to install apps automatically you can consider something like Ninite.

Enjoy!

Netkeen

I’d never heard about this before, but a group reverse engineered Commander Keen, and re-built it as a network playable game!

Check it out at their site.

To build the source, you’ll need Borland C++ 5.0.2 and TASM 5.  Earlier versions may work but I haven’t tested.  The interesting thing with the networking is that they use the same code out of DOOM.

NetKeen

NetKeen

Fun with PGP 1.0

Well I got slightly bored, and thought I’d dig into some old crypto software.  And PGP 1.0 was as good as any place to start.

Now one scandalous thing at the time was the inclusion of RSAREF 1.0, the RSA reference library which redistribution required a license that wasn’t exactly included with PGP.

A company called Public Key Partners (PKP) holds the exclusive
commercial license to sell and sub-license the RSA public key
cryptosystem. For licensing details on the RSA algorithm, you can
contact Robert Fougner at PKP, at 408/735-6779. The author of this
software implementation of the RSA algorithm is providing this
implementation for educational use only.

And wow was this fun at the time.  As far as I know this license lapsed on September 21, 2000

And then there was this slight issue:

After Biham and Zimmermann go their food and sat down, Zimmermann took out a few pages of computer listings.  Within minutes, Birham was finding fundamental flaws in Bass-O-Matic.  Some of the flaws were subtle-weaknesses that made the algorithm susceptible to differential cryptanalysis, which was Birham’s speciality. Others were more embarrassing, like a conceptual error in Zimmermann’s algorithm that prevented the last bit of each byte from being properly encrypted.  After ten minutes of Birham’s onslaught, Zimmermann realized that Bass-O-Matic was a lost cause.

So now you would be wondering, why would I even bother with what was a quickly abandoned encryption?  Well I was bored, and I was more interested if I could locate the source to 1.0.  What would be more interesting to me is to revive it onto somewhat more modern 32-bit platforms.  Namely OS X, Win32 and MS-DOS.

With a little luck, I found the unix_pgp10.tar.gz, which does contain the source code for a Unix version of PGP!  This version is more so geared to the SPARC of all things. Specifically it mentions:

Tested on SunOS 4.1 with gcc 1.39

However building on OS X was trival with changing the Makefile.  The CC had to be changed to reflect a 32bit build, and the DEFINES had to remove the HIGHFIRST define, as the x86 platform is little endian.

CC=cc -arch i386

DEFINES= -DUNIX -DPSEUDORANDOM -DUNIT16 -DPORTABLE

Is the relevant changes.

And even better it’ll work!

$ pgp pgp.ctx pgp.exe

Pretty Good Privacy 1.0 – RSA public key cryptography for the masses.
(c) Copyright 1990 Philip Zimmermann, Phil’s Pretty Good Software. 5 Jun 91

File has signature. Public key is required to check signature.
File ‘pgp.ctx’ has signature, but with no text.
Text is assumed to be in file ‘pgp.exe’.
.
Good signature from user “Zimmermann, Philip R. – prz@sage.cgd.ucar.edu”.
Signature made Wed Jun 5 13:51:18 1991

Signature and text are separate. No output file produced.
Plaintext filename: pgp.exe

Wasn’t that great!

Now getting this to run on Windows was a little bit more of a challenge.  I was going to build from the UNIX source code again, however both Visual C++, and Watcom C++ build an executable, but neither are able to add keys to the keyring, verify the executable reliably and deadlock all the time.

So I thought I’d get a little creative and start replacing some code from the MS-DOS version of PGP. It turns out that all I needed was rsaio.c & rsaio.h and I was able to build an executable.  But I ran into other snags, and stack errors.  A glance at the MS-DOS Makefile, and I saw that they had to up the stack size from the defaults.  So I figured the same would hold true, and I picked a much larger 32kb stack for the heck of it.  I mean it is 2014, and if you can’t handle a 32kb stack well..

Compiling on Visual C++ went like this:

cl386 -c /DPSEUDORANDOM /DUNIT16 /DPORTABLE *.c
cl *.obj /F32768 /Fepgp.exe

And for Watcom C++

wcl386 -c -dPSEUDORANDOM -dUNIT16 -dPORTABLE *.c
wcl386 *.obj -fe=pgp.exe -k32768

And now I can build for either compiler.  And even better, it works!

PGP 1.0 on Win32

PGP 1.0 on Win32

Even for completness sakes, DOS4G/W works as well! Just remember to link for MS-DOS

wcl386 *.obj -fe=pgp.exe -k32768 -l=dos4g

And you should be good to go.

PGP for 32bit MS-DOS

PGP for 32bit MS-DOS

So what happened to PGP?  Well version 2 used a more ‘acceptable’ encryption, the IDEA cypher, then the company was sold, IP was sold again and again.  It’s still out there, mostly for email encryption.

While it sure did ignite the world on fire for a while, the overall difficulty of using it, combined with the ease of losing the private key and all your data is just too easy.  But this really is the nature of the beast.

I guess you’ve all heard by now

that the internet broke pretty good yesterday.  Apparently someone added some new routes, and it broke the 500,000 route limit in most BGP routers.

Oops.

But this has been a long time coming, even back in 2003 when I had a full BGP load I was running on a 7206vxr with 512MB of ram.

So if you had connectivity problems, that is what was going on.

Fun times for sure!

Atari System V UNIX Saga – Part III – SCSI Disk Replacement

(note this is a guest post by Tenox)

In previous posts from ASV series I have explained why I got hooked on Atari System V UNIX and what I had to do to get a decent resolution out of Atari TT. Having built the VGA monitor adapter, the next challenge was to replace the internal SCSI hard disk with a flash storage of some sort. I really don’t like spinning hard disks and especial the old ones.

I have mentioned that there are two surviving ASV disk images. The better one was made out of a rather large old, loud and obnoxious Maxtor. I’m definitely not having this monstrosity inside of my beloved Atari!

Maxtor LXT340SY

Maxtor LXT340SY

 

So how can you replace an old SCSI hard disk with a modern flash device? There actually are several different ways.

If you have the money you can go industrial route, which is a SCSI disk replacement for various machinery and embedded systems produced by ReactiveData. You can buy one of these for a little over $1000 USD. The good part is that they substitute a specific real hard disk model and are exceptionally good in quality of emulation. However, spending a lot of money on my TT and TenoxVGA already, this really wasn’t an option without getting a divorce.

Another approach is to use SCSI to IDE bridge combined with IDE to CF adapter or possibly SCSI to SATA bridge and SATA SSD disk. These are widely used by Atari / Amiga / Mac 68k community. The most popular bridge come from a company called Acard. I actually had one of these at hand, AEC-7220U which I used for TOS/GEM work.

acard front

acard front

 

Did it work? As you can guess – of course it didn’t! The initial boot loader errors out unable to read disk capacity.

Atari SYS V failed to boot

Atari SYS V failed to boot

 

Atari ST/TT, somewhat similarly to 68k Macs require a hard disk driver, present on the hard disk itself. There are several 3rd party implementations, some of them, like HDDRIVER maintained up to present date. Unfortunately these drivers are TOS specific and obviously don’t work with Atari Unix. The system comes with it’s own hard disk driver which seems to be obsolete and with limited hardware support.

The next step was to research and try out some other SCSI to IDE bridges in hope one would just work. And surprisingly there are several to choose from.

The second on the line was I-O Data R-IDSC21-E/R. No longer produced and supported, however still fairly popular. Usually regarded as the ultimate bridge with most fancy options bells and whistles. It has most jumpers and modes of all tested devices. For instance ATA PIO and DMA modes.  Unfortunately this didn’t help at all and same error was observed.

idsc21e

idsc21e

 

Another device tried was Yamaha v769970. This bridge was conceived to allow use IDE CDROM and Hard Disks with Yamaha samplers. No longer produced and obsolete, it’s somewhat most easy to set up, robust and stable. It’s actually my favorite bridge for day to day use, except for ASV where it just doesn’t work.

v769970

v769970

 

More recent kid on the block is an integrated SCSI2IDE + IDE2CF in one device called Aztec Monster. Recently designed and currently produced in Japan (you can buy one on eBay) is a fairly decent choice, which I recommend to every one. I had a lot of luck with these, except for ASV of course…

CF_AM_r1_1

CF_AM_r1_1

 

I also looked in to SCSI to SATA bridges, like this one, but they have additional issues, like need to convert LVD to SE on one end and SATA to IDE to CF on the other. Little bit too complex for what I wanted.

Being out of luck I started researching if it would be possible to build an open source version, which can be easily diagnosed and fixed. Doing so I found out that there in fact is one open source SCSI adapter called SCSI2SD.

SCSI2SD_V3.0_plain

SCSI2SD_V3.0_plain

 

I was bit skeptical in the beginning but then I though that being open source it can be debugged and fixed if it needs to be. So I immediately ordered one.

Once it arrived, I plugged it in, applied the image to the card and BAM! It worked! The system booted fully and worked flawlessly!

Atari Unix System V – Boot Sequence from Antoni Sawicki on Vimeo.

Going back to the hardware, there are some gotchas with SCSI2SD. First of all it’s not really SD card but rather a micro-SD. Which is not a big problem, but requires magnifying glass and tweezers to operate. Secondly even though the board looks like standard 3.5″ width, it in fact it is not! So a warning: it doesn’t fit 3.5″ hard disk slot!

photo 1

photo 1

 

When one side is placed on 3.5″ HDD holes the other leaves a gaping hole. Just doesn’t fit. Apparently you need a special 3D printed bracket to fit it together. Or a double sided tape, I recommend 3M VHB Tape. The upcoming version will feature 2.5″ sized holes, so look for this one.

Other than that SCSI2SD is flawless and it works fantastic. One feature that Mac users will appreciate:

--apple Set the vendor, product ID and revision fields to simulate an
        apple-suppled disk. Provides support for the Apple Drive Setup
        utility.

In the next article I will write about my first steps in the system post boot and then bringing it to a more or less usable state. Stay tuned!

Advanced Gravis

My experience with the Gravis UltraSound

(guest post from Frank Sapone)

gravlogo

Sometime around 1992, Advanced Gravis teamed up with Forte/E-Tek to design a wavetable synthesis card around the ICS11614 IC. This card offered 32 channels, 14 channels @ 44khz and more channels would start dividing down in sound quality until you got to 32 channels at ~19khz. The mixing was done on-board which saved precious CPU cycles in the days of 286 and 386. The card originally advertised sound blaster support, but reading usenet posts from these days you can tell a lot of people were agitated that it was through a TSR, SBOS, that had hit or miss support and sometimes sounded better or worse than the FM because SBOS mixed it all into stereo.

I found out about these mythical cards a few years ago. A buddy went along with me to the local flea market out in the country-side of York, PA and we found a fellow who was trying to sell some P2-era laptops with USB wifi dongles and Windows XP loaded laptops for $100(!). I started talking with this gentleman and eventually convinced him to let me take a trip to his house and see what other stuff he may have. I took home a healthy share of various SB clones (mostly of the ESS variety, but a few Yamahas were in there as well) and some S3 Virge cards all for free. I built a computer with some of these parts, enough to play Doom and Heretic and started hitting up vogons and was reading some fanboism on the Gravis UltraSound cards. Where did I hear that name before? Oh, yes, in my mid-late 90s days of Doom I remember the setup.exe listed this card as an option and so did Duke3D and some other games I used to play quite frequently.

I did a lot of research on the card. Reading about how it used wavetable synthesis instead of FM. Basically, you can upload real MIDI-like patches to the cards RAM to get exceptional sound quality out of these older games and this also opens the window to creating your own patches if you wanted to tweak the sound of the songs.

Ultrasound Classic

Ultrasound Classic

Fast forward a couple of years later, I finally broke down and bought a GUS Classic v2.4 on ebay for $60. Unfortunately, it didn’t work out of the box. Failing to detect the card every single time, even if I removed everything from the computer and even disabled everything in the BIOS, including the FDC, Serial and Parallel ports. I got a refund, but a few days later I noticed some resistor had a broken leg and I soldered this and it started working! Immediately I loaded up Doom and the music sounded so much better than my SB or any of it’s clones.

Doom

Doom

Enjoying the sound, I started loading up other titles I played a lot back then that I remembered supporting this card: Descent, Heretic, Duke3D, Quake 1. I got a taste of some infamous Gravis issues when it came time to load up any Build engine title (Duke3D, Blood, SW, etc.) and Rise of the Triad. The music sounded great, but the digital voices had some weird clicks and somewhat static-like sound at the end of their samples. More research revealed that the GUS was known for this with those particular titles, and a ìsimpleî workaround is to get an SB card coexisting in the same box.

I amazingly got the SB and GUS living in the same machine after a few hours of fiddling around with some jumpers and tweaking autoexec.bat. Originally, I used one of those stereo to stereo cables. Running line out of the SB to the line in of the GUS, but the GUS’ mixer ìcolouredî the sound of the line in and mic in with entirely way too much bass. I made a cable that ran from line out of the SB16 to the CD-In of the GUS and it sounded excellent. I even found a way to keep my SB working in Win98SE this since it was known that the GUS had shitty support for the Win9x family (more on this later).

There are some shortcomings of the classic cards, the main being the Win9x drivers have no DirectSound support, only software emulation and usenet says that this had unpredictable results. Another annoying thing was no volume mixer(!), they expected you to hook this card up to powered speakers or ideally an amplifier. The v3.7 revision has a volume mixer but had problems with flip flopped stereo (whoops!) and v3.74 (the final GUS classic) fixed this problem. For those curious, for the most part revision versions don’t have bug fixes in their firmware, they just started finding ways to shrink the number of ICs on board. The exception to this was the v3.7 and v3.74 adding the volume mixer. GUS MAX v1.7 apparently had some sort of DMA or IRQ bug (forget these specifics) according to usenet, v1.8 fixed this problem and v2.1 is a v1.8 but lower component count and everything is now soldered on instead of sockets.

Other gotchas include: sound clicking and corruption on High-DMA, sometimes you can resolve this by setting 16-bit delay transactions but not all motherboards have this option and some just won’t work either way. Doubling up on the baseport, i.e. 220 also steals 320. Gravis claims you need to set the GUS and SB Emu IRQ to different values but they can be the same usually and have no problems. Same with the Playback and Recording DMA, unless you want full-duplex. If you’re just gaming it’s irrelevant.

Ultrasound MAX box

Ultrasound MAX box

At some point, I was hungry for more, wanting to try out the later GUS models like the MAX, ACE, and PnP. Particularly the GUS MAX because it included the volume mixer, had a special Crystal CODEC chip for 16-bit recording (was released late in GUS classics life as a daughterboard but it is very rare), the CODEC chip allowed for Windows Sound System, but the port is non-standard (gotcha!) and a special SBOS, MAXSBOS, takes advantage of the CODEC chip as well, and finally some CD-ROM support on board but I was uninterested in that since most of you know how much of a nightmare it is to get that shit working properly. Back to ebay, found a fellow selling a boxed GUS MAX for $100. I didn’t have the total cash on me at the time and it was buy-it-now. Considering the card was fairly hard to find, at least from what I researched at the time, I contacted the guy about paying half now and the other half in a few days. He agreed, and asked that I send it as a gift via paypal. Long story short, he never sent it, stopped replying to my emails and since it was sent as a ìgiftî I had no recourse through ebay or paypal. Learn that lesson when dealing online everyone! Always offer to pay a little extra for the processing fee if they claim this is why they want it set as a gift!

Bummed out, I found another classic, this time a v2.7 and well what do you know, this one doesn’t work either! Tried for 3 days all kinds of things. Cleaning the entire board off with electrical contact cleaner, reseating the contacts on the socketed chips, reflowing solder joints, replacing capacitors, but nothing ever brought it back to life. A year or two later, I found another GUS MAX for sale on ebay, purchased it immediately and it did not work. I tried it in 3 separate PCs and got no results. It always just said baseport UNAVAIALBLE FOR ULTRASOUND for whatever baseport I set it to. However, it wasn’t a total loss. On a whim, I took the GF1 IC from this MAX and placed it in the broken v2.7 classic and it made this card live again.

I setup daily searches for ebay to alert me immediately of any GUS developments appearing. If you’re new to the whole Gravis thing you’ll see theres a guy in Hungary who always has overpriced ones for sale and is unwilling to budge on price. If you check out his feedback you will see that he has been selling GUS cards of all flavours since at least 2010(!) almost monthly. Months and months went by with no MAX showing up and when one finally did it went for way more than I was willing to spend especially with the track record of 2 (almost 3) DOA cards that required soldering and intense cleaning to live again. If you’re planning to experiment with GUS cards be sure the card was tested recently, if you get the typical responses of not having an ISA PC around any more to test it, get the card cheaply and be certain that they will honour the return policy if it does not work.

MAX 2.1 board

MAX 2.1 board

Finally, after a couple of years I did some networking and found some fellow demosceners with GUS MAXes for the price of shipping. I’m waiting on my v2.1, but received two v1.8s. The first one did not work at all, would never detect properly. Tried the usual suspects of cleaning it up, reseating, rocking the caps a little back and forth to make sure everything was making contact, etc. The second one, actually detected the card saying UNAVAIALBLE FOR ULTRASOUND yet again, but this time after I disabled my FDC, Serial and Parallel ports it worked! Excited, I loaded up the usual games and all worked great and the CODEC chip’s mixer program worked properly. Now, I was read to add the SB16 back in but now no matter what base port I would select it always complained it was unavailable, yet again! At some point I got it working sort of but then it wouldn’t let me set any DMA properly in the setup utility. Enough of this nonsense, I thought, I have a few socket 7 towers not being used.

I popped it in to a P1 166MHZ living by itself. Now we can try out that special MAXSBOS!… and unfortunately it doesn’t sound better than SBOS, in fact it sounds worse! And yes, I tried a separate IRQ for SB emulation and low-DMA, high-DMA, making sure the CD-ROM baseport doesn’t conflict with GUS’ baseport and I have 1MB RAM onboard that is 70ns.

At this point I should stop and mention a few other gotchas on these MAX cards. The GUS ìdoublesî up on the baseport. i.e. if you set 220 it will also grab 320. The CD-ROM baseport on these cards will be set, even if you disable the rest of the CD-ROM interface. So make sure you don’t have the CD-ROM set to the same or else it will always complain it’s unavailable for ultrasound in the setup utility. And yes, you just have to remove the IRQ and DMA jumpers on the card and put the jumper on the CD-ROM disable. Panasonic enable jumper appears to make no difference regards to enabling parts of the CD-ROM circuit, unless of course you planned on using the CD-ROM interface. I’m assuming most of you out there won’t be. You also need 70ns rated (or better) 256kx4 chip. The MAX has 512kb RAM on board but you NEED 1MB on any GUS card to get great results or live with missing instruments and all kinds of funnies happening to you. The CODEC also uses some baseport, but this is software selectable so you should have no serious problem there.

Now I go on to try this bad boy out in Win98SE with the special DirectSound enabled drivers. When you install the Gravis GF1 (non PnP) series drivers it will tell you that you have to install the card as a non-PnP device and restart, then manually set the DMA, IRQ, Baseport in the advanced properties for the card. This is fairly trivial if you’re used to DOS, but for newbies just keep it in mind. Another gotcha here is that the drivers will blank out your SET ULTRASND= and SET ULTRA16(for MAX users)= in your autoexec.bat after the reboot so write these values down. I believe this was done on purpose since most people auto loaded SBOS or MEGAEM (the other SB emulator they had) and this conflicts with Windows big time. The drivers do work and the sound quality is fine, but the biggest issue I’ve had is that sndvol32.exe never loads now. You can not adjust the volume or disable the mic-in and line-in and you really should as every card I’ve owned the recording inputs pick up a lot of interference. Moving the mouse and the HDD just all come through your speakers. I haven’t tried Windows 95 yet, maybe the mixer works okay there? At some point I’ll post an update and let internet-land know.

Gravis Ultrasound ACE

Gravis Ultrasound ACE

SoundBuddy 1.0 prototype

SoundBuddy 1.0 prototype

I don’t own these cards, but will mention them for clarity. The GUS ACE (internally referred to as the Sound Buddy) is simply a GUS Classic without the recording capabilities or the gameport. It was meant to be a supplement to a sound blaster or similar clone. You simply run the line out of this card to your line in of your SB16 (or maybe it’s vice-versa? Correct me if need be). You have to update your ultrinit to the last known version because there’s a bug in the official drivers(!) that does not disable the nonexistant gameport and it will steal your other sound cards gameport cause conflicts. For those who need the fix, GUS0047.ZIP. At one point, Gravis struck a deal with AMD to make an enhanced chip, called the InterWave which had GUS support and allows 8MB of samples (16MB apparently if you solder some stuff, but I have yet to see any pictures or even a textfile on this hack). Pouet.net sceners say that it has problems with long loops so some demos may sound wrong. IWSBOS is based from MAXSBOS so I assume it probably sounds just as bad compared to the final revision of SBOS. Usenet posts of users crying that the Win9x drivers are awful too, but again, I don’t own this card so I’m only just passing on what I have heard. Feel free to prove me wrong in the comments.

ViperMAX board

ViperMAX board

Other weirdo cards included the Synergy ViperMAX, which is basically a GUS with an ESS chip for SB compatibility. In theory, this means you should get decent Win9x support through the ESS. These cards are kind of rare now. I have yet to see one appear in the US. But, fellow Pouet.net users have found them across the EU so maybe they are common there. There were some other OEM variants, most similar in design to the ViperMAX. Check out Wikipedia for information on those if you really must know more.

My final thoughts on this long (still not quite yet over) journey is that the GUS Classic is a fun card for breathing some life into the soundtracks of older id and apogee titles with a few silly hang ups on getting it to work initially. The MAX did not live up to its mythical hype with the mixer, special CODEC chip, and Win9x drivers. These cards appear to be very delicate because I have had 3 out of 5 cards DOA and required fooling around to get them to work again. Even though 2 MAX cards still do not work no matter what I’ve tried. Expect to buy more than one to get a working card. The ideal setup would be to get a GUS Classic or ACE and get that to coexist with an SB or compatible clone. I can’t comment on the ViperMAX as I have not located one yet.

Gravis Ultrasound MAX 2.3 prototype

Gravis Ultrasound MAX 2.3 prototype

As much frustration these cards have brought me, they still sound nice when they work! But, it really does make a lot of sense why they are rare today. It is quite aggravating to get one working properly!

All of this would be useless without some samples of what a GUS sounds like, all samples were recorded at 44,100Hz, …

DOOM e1m1


DOOM e2m6


DOOM e2m8


DOOM e3m1


DOOM e3m2

DOOM over TCP/IP

I never played DOOM over the internet, as by the time I had a proper connection and fast enough machine, Quake was all the rage, and all I had was this crappy cable modem that used a dialup connection for the upstream.

If I wanted to play multiplayer I’d wind up dong a LAN party anyways.  We were living in the era of $20 NE2000 clones, and 56kb modems, with the occasional 1mbit down cable.

Anyways I recently saw The Internet DOOM Client/Server System v0.01, which was a simple TCP/IP DOOM matchmaking server that includes source the client and server.  This eventually grew up into iDOOM.  It looked simple enough and it does mention that it is based on the opensource IPX component of DOOM.  I’d never looked at it so taking a peek I saw this:

DOOMNET.C

// hook an interrupt vector
p= CheckParm (“-vector”);

if (p)
{
doomcom.intnum = sscanf (“0x%x”,_argv[p+1]);
}
else
{
for (doomcom.intnum = 0×60 ; doomcom.intnum <= 0×66 ; doomcom.intnum++)
{
vector = *(char far * far *)(doomcom.intnum*4);
if ( !vector || *vector == 0xcf )
break;
}
if (doomcom.intnum == 0×67)
{
printf (“Warning: no NULL or iret interrupt vectors were found in the 0×60 to 0×66\n”
“range. You can specify a vector with the -vector 0x<num> parameter.\n”);
doomcom.intnum = 0×66;
}
}
printf (“Communicating with interupt vector 0x%x\n”,doomcom.intnum);

olddoomvect = getvect (doomcom.intnum);
setvect (doomcom.intnum,NetISR);
vectorishooked = 1;

IPXSETUP.C

/*
=============
=
= NetISR
=
=============
*/

void interrupt NetISR (void)
{
if (doomcom.command == CMD_SEND)
{
localtime++;
SendPacket (doomcom.remotenode);
}
else if (doomcom.command == CMD_GET)
{
GetPacket ();
}
}

So for those who missed it, the IPX client just hooks in as a TSR, which doom calls down to, and then either sends or receives data.  Now I wish I’d looked earlier I didn’t realize that it was something so simple.

So I thought it’d be interesting to watch it in action.  Now it compiles on modern Linux, but it doesn’t work.  I don’t know why, I didn’t investigate much.  Instead I opted for a server from the era, UnixWare.  Oddly enough that works (and so does OS X).  I fired up GNS3, put the server on one network, and added two clients on separate TCP/IP networks.  I went ahead with DOOM v1.2.

doom tcpipThe clients are able to connect to the server, and once the both register, they drop out of the server, and pass all the command line arguments to TCPSETUP, and away they go.
doom tcpip 2Now it’s worth noting that back in these days people use registered addresses.  None of this will work with NAT as it expects 1:1 UDP port mappings.  The clients are all equal peers.

So could a newer driver be written to support a server, and work behind NAT? Yeah I don’t see why not.  Is there any point in doing so?

Probably not.

In 2004 it was hard enough trying to do a deathmatch online, but 2014?.. 20 years too late.

But it’s kind of interesting how convoluted the networking setup had to be for a 32bit protected mode program calling down to a real mode TCP/IP TSR, which in turn called the network driver.  It’s amazing it even works.

 

Slackware 14.1 is released!

A good friend mentioned that Slackware 14.1 was just released.

So I thought I’d take this time to instead install SLS 0.98-1 on Qemu.

Now this was the first version of Linux that I actually started to use.  The 0.11 stuff was really a pain to install Minix then copy over enough linux to get it working.  Instead SLS gave us a more usable distro to be installed on a machine with nothing.  And thanks to cd.textfiles.com locating a download set was trivial.

Back in late 1992 I downloaded the zip files from CCUG at a blistering 2400 baud.  I remember it took a week to get the A, B and C series.  And I had to get a new box of 5 1/4″ High Density diskettes for the install (and another two for my MS-DOS / Windows 3.1 backup).

And just as back then, these zip files are missing files.  INSTALL.END is missing from the A & B sets, which confuses the installer.  The kernel source is linked to /usr1 which by default doesn’t exist and will cause that part to fail unless you use a virtual terminal (alt+f2) to remove /root/usr/src/linux so the installer will create the path itself after the installation of the A set.

SLS 0.98-1

SLS 0.98-1

Once it’s installed, it is pretty bare.  vi, more, less, grep, and make are not in the install set, so it’s kind of difficult to move around.  Emacs is there if you want it.  As ultra primitive as this set is, it does install on an empty machine, which for the time was a big accomplishment.

One cool feature of this installset is that you aren’t tied to Minix’s filesystem, but you can use the new and exciting extfs, or Extended File system.

While the default kernel doesn’t see my emulated ne2000, as at this point the only supported NIC is the Western Digital 8003.

wd8003

wd8003

As mentioned in we.c it was heavily based on the 386bsd code, although Linux used it’s own TCP/IP implementation, and not importing the Net/1 code.

I would imagine there are patches out there that’ll  no doubt add in NE2000 support.

Also included was a very primative dosemu version 0.3, that can sort of run some MS-DOS programs.

dosemu on linux

DOSEMU 0.3

More complicated stuff like Qbasic will crash it out.  Although with a bit of work I did get MS-DOS 5 to boot from it’s “virtual hard disk”.  It really is more so amazing it works as well as it does at this point.

For anyone feeling crazy, here is my installed disk image, and here is the ‘fixed’ install diskettes.

Using IDE hard disks on VMWare ESXi 5.5

I’m sure this applies to other versions as well.

VMWare stores the configs, and files on the UNIX file system, which you have to edit by hand.  You can’t do this in the UI, as VMWare tries to be SCSI only.  But if you manually edit the files, you too can enjoy a virtual IDE disk.

You need to enable SSH access to the ESX server, or do this change on the console.  Configs live in:

/vmfs/volumes/<storage group name>/<virtual machine>/

So for example, mine is:

/vmfs/volumes/datastore1/UnixWare 7.1.1/

First, edit the .vmdk file.  You are looking for the line:

ddb.adapterType = “buslogic”

And you change the buslogic to ide like this:

# Extent description

RW 16777216 VMFS “UnixWare 7.1.1-flat.vmdk”

# The Disk Data Base
#DDB

ddb.adapterType = “ide”
ddb.geometry.cylinders = “1044″
ddb.geometry.heads = “255″
ddb.geometry.sectors = “63″
ddb.longContentID = “8f535bb60df8d73a86c24853fffffff

The next thing is to alter the vmx file.  By default the hard disk will be on scsi0 and you’ll see something like this:

scsi0.present = “TRUE”
scsi0:0.deviceType = “scsi-hardDisk”
scsi0:0.fileName = “UnixWare 7.1.1.vmdk”
scsi0:0.present = “TRUE”

And what we do is rename the scsi0:0 to ide0:0

ide0:0.present = “TRUE”
ide0:0.deviceType = “disk”
ide0:0.fileName = “UnixWare 7.1.1.vmdk”
scsi0:0.present = “TRUE”

And you should be good to go.  The other (much easier) alternative is to try to use the legacy OS/2 profile as it’ll install an IDE disk by default.

IDE hard disk on VMWare ESX

IDE hard disk on VMWare ESX

Yay!

You should check out sanbarrow’s guide to more options you can configure in your VMX file.