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- -----------------------------------
- Readme file for RMSSetup 2.4.9 BETA
- -----------------------------------
-
- 16th May 1994
-
-
- -- Notice.
-
- RMSSetup is copyright (c) 1994 by Antony Suter.
-
- RMSSetup is free of charge and may be freely distributed.
-
- RMSSetup was built with the help of source code supplied free non gratis
- by id Software for their serial and network drivers for DooM.
-
- This software is written for a specific purpose, to play multiplayer DooM,
- and contains no code to attempt to modify or otherwise cause harm to your
- machine. I can not be held responsible for your machine seeming to break
- by your using this software.
-
- The principals used in this software could easily be modified for use with any
- game or other software.
-
-
- -- Intro.
-
- Greetings. This is a Beta release of a driver that will allow anywhere from
- 2 to 4 players playing DooM over serial lines. It has been proven to work
- and now works well.
-
- Current version of RMSSetup is 2.4.9 BETA.
-
-
- -- Files.
-
- RMSSETUP.EXE is the program and is 2.4.9 BETA.
- README.TXT is this file.
-
-
- -- What does it do? (When would I use it?)
-
- Allows 3 or 4 players (or 2) to play DooM by just using serial cables.
-
- As noted, you can play with just 2 players using RMSSetup, however, I
- recommend using the DooM serial device driver by David Nugent, currently at
- version 1.2.6. Look for "bnudm126.zip" at your nearest ftp site.
-
-
- -- What do you need?
-
- You need a machine for each player, up to a maximum of four.
-
- You also need a a minimum of a cable for each player except one. These cables
- are standard NULL modem cables. Fully shielded and grounded cables are
- preferable (to reliably use higher speeds).
-
- Two machines need one serial port each, the remaining machines need two
- serial ports each.
-
- Each machine needs to use RMSSetup, preferably the same version.
-
- Having 16550A serial chips is a definite plus, they will be used
- automatically.
-
-
- -- How do I set it up?
-
- Chain the machines together with the two slowest machines at the end of the
- chain.
-
- eg. The first setup I ever tested with was:-
-
-
- +------+ +------+ +------+
- |386-40| <-----cable-----> |486-66| <-----cable-----> |486-40|
- +------+ +------+ +------+
- port 1 port 1 port 2 port 1
-
-
- -- RMSSetup command line options.
-
- These are fairly simple at the moment. Note that a 16550A FIFO will be used
- automatically and transmits 16 characters and receives 8 characters at a
- time. Most parameters are currently fixed, eg. buffer size.
-
- -node <pn> <tp>
-
- eg. "-node 1 3" for node 1 out of 3.
-
- <pn> is the node number from 1 to 4.
- <tp> is the total number of nodes from 2 to 4.
-
- This parameter is needed. Each machine must be a different node
- number to work properly. Each machine must have the same total number
- of nodes to work properly.
-
- 4 is the current maximum number of nodes handled by RMSSETUP. DooM allows
- for 8 nodes but only 4 players, as of DooM version 1.2. The non player
- nodes are drones that can also view left or right perspective.
-
- -line1 <portn>
- -line2 <portn>
-
- eg. "-line1 2" for COM2.
-
- <portn> is the port number from 1 to 4.
-
- Sorry no support for non standard IRQs or port addresses _yet_.
- At least one of -line1 or -line2 is needed. Each port must have
- a different IRQ, ie. use ports 1&2 or 1&4 or 2&3 or 3&4. The port
- is opened with a speed of 9600. One line is needed for each machine
- on the end of the chain. Two lines are needed for each machine within
- the chain.
-
- -speed1 <bps>
- -speed2 <bps>
-
- eg. "-speed 19200"
-
- <bps> is the new speed. Current speeds allowed are 4800 (argh!), 7200,
- 9600, 14400, 19200, 23040, 28800, 38400, 57600, 115200.
-
- To get real results from DooM you need to up the speed of your lines.
- Use the highest speed that gives you smooth operation.
-
- See section on "Testing so far".
-
- -vector ...
-
- Supported as for standard DooM multiplayer drivers.
-
-
- -- Testing so far.
-
- The driver has greatly improved since the first beta release 2.2.4. It now
- works without any serial lockups.
-
- Some of the time, not all of the machines will start up, ie. initial RMSSetup
- handshaking works fine but one DooM machine (node 1) doesn't get past "sending
- network info?. This problem is being worked on. I have a line on this problem.
- The vital sent-once-only startup packet is being lost in the rush to get
- started. The temporary "fix" is to keep re-starting the machines until
- successful. It has been statistically proven that yelling "WORK" a few times
- at the crucial moment helps greatly. Also lowering the speeds can help.
-
- The only config tested with so far is the one shown in "How do I set it up?"
-
- It worked fine with both lines operating at 19200, but was slow and somewhat
- jerky. We had great success with one line at 38400 and another line at 23040
- and later at 28800. At these speeds play with three machines was smooth.
-
- To work out the effective speed down the whole chain do this:-
- -> Sum the inverses of each line speed, and then invert the sum.
- ie. With two lines at 19200 our overall speed was:-
- 1 / (1 / 19200 + 1 / 19200) = 9600
- With one line at 38400 and the other at 23040 our overall speed was:-
- 1 / (1 / 38400 + 1 / 23040) = 14400
- With one line at 38400 and the other at 28800 our overall speed was:-
- 1 / (1 / 38400 + 1 / 28800) = 16457
- With three lines at 38400 (for four machines) you would get:-
- 1 / (1 / 38400 + 1 / 38400 + 1 / 38400) = 12800
-
-
- -- Miscellaneous and technical notes.
-
- This software is written for a specific purpose, to play multiplayer DooM,
- and contains no code to attempt to modify or otherwise cause harm to your
- machine. I can not be held responsible for your machine seeming to break
- by your using this software.
-
- There is no serial handshaking support, hardware or software.
-
- There is no modem support, currently, but RMSSetup will not hangup DTR when
- it exits so you could get it working by dialing with your favorite comms
- program.
-
- RMSSetup is written with the overall view that all playing machines are
- physically present in the one (or two!) rooms.
-
- RMSSetup uses TX and RX buffers of 4096. Does not use MSR or LSR
- interrupts. Data at each existing stage is not overwritten by new data
- unlike existing ring buffer implementations.
-
- All input from technical and experienced types very welcome.
-
- RMSSetup needs to packetise data and simulate a little network for proper
- operation.
-
- RMSSetup might write a file on exit called "RMSSETUP.DBG" with packet
- statistics, and may or may not include a dump of the first 31K of serial
- traffic.
-
-
- -- The to do list.
-
- RMSSetup will be changed so that adding more direct serial lines between
- machines using whatever spare ports are availiable will speed up operation.
- This will relieve some burden on some machines but will not increase the
- burden of any.
-
- Options will be added to allow use of non standard port addresses and IRQ
- numbers all the way to IRQ 15.
-
- I will probably increase the number of lines per machine from 2 to 3 or 4.
-
- I will also probably write code to allow multiple lines to use the one IRQ.
- This might not be very useful on an ISA or VESA machine, but a serial setup
- on a PCI machine could use this (Viva la DooM on 100MHz Pentium and PCI bus
- everything!).
-
-
- -- What do I want?
-
- Please send to me (by email please) all bug reports being as explicit as
- possible about the faults that you find. I am aware of some but send yours
- anyway - just dont resend it several days later because you think i'm not
- listening to you. I might not respond to all email.
-
-
- -- What else do I want?
-
- Send me a postcard... RMSSetup is free, but by all means send me
- international cheques in Australian dollars (AUD) for any amount you choose!
-
- I also want ID Software to modify DooM to use higher resolutions on SVGA
- video cards. Perhaps use VESA modes or a few standard chipsets, maybe using
- accelerators. (S3!)
-
-
- -- Who am I?
-
- Antony Suter
-
- Email:
-
- antony@werple.apana.org.au
- [s871780@minyos.xx.rmit.edu.au]
-
- Snail:
-
- 167 York Rd
- Mt Evelyn, 3796
- Victoria
- AUSTRALIA
-
-
- -- This readme file will self destruct in 5 seconds...
-