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-
- SERFIXUP is intended to work with the DOOM v1.2 SERSETUP.EXE. It increases
- the baud rate of your serial port from DOOM's 9600 to 14,400, resulting in
- better performance in a multiplayer game.
-
- SERSETUP doesn't perform miracles. If your CPU is already stressed from
- running DOOM's intensive graphics while being interrupted at 9600 baud, no
- benefit will be seen from SERFIXUP. You might even lose incoming data if the
- serial port can't be serviced in a timely manner.
-
- On the other hand, if you have a fast CPU with lots of memory and a 16550
- UART, it's likely that the serial port traffic is the bottleneck in your
- multiplayer game. In this case SERFIXUP can help by boosting the transfer of
- serial data by 50%.
-
- (I imagine that Id restricted the baud rate to 9600 to avoid the complaints
- from users with marginal hardware. As I'm not asking any money for my
- software, I don't care if people complain or not.)
-
- DEFICIENCIES
- ------------
- As SERFIXUP was written for my own use, it's not "user friendly" and lacks
- flexibility. Restrictions on use:
-
- 0. Only supports COM1 and COM2 at the standard base I/O addresses.
- 1. No validity checking is done, so don't specify a non-existent port.
- 2. Baud rate specification of 14400 is hard-coded (for now).
-
- USING SERFIXUP
- --------------
- SERFIXUP doesn't alter any of DOOM's files, or any data files created by
- DOOM. It also doesn't take an command line parameters. The number of the
- serial port to program is passed from SERSETUP to SERFIXUP.
-
- First, ensure that you can run ok with DOOM's SERSETUP. When you're sure
- that your connection is error-free (modem settings are accurate, etc.) you
- can attempt to improve performance be running SERFIXUP *immediately* prior
- to running DOOM's SERSETUP. The following example might be seen in a batch
- file:
-
- @echo off
- serfixup
- sersetup -COM2
-
- How do you know if the performance is improved? Just by perception. The
- goal of SETFIXUP is to improve performance of multiplayer DOOM by improving
- the rate at which serial data is transmitted between players. If the play
- doesn't seem smoother, then there's no point in running SERFIXUP.
-
-
- Steve Snyder
- CIS ID: 76447,3264
-
-