DAWN PATROL READ ME - Last Update:    RDH 27Oct94
=================================================


This file is an up to date copy of the main part of the Technical 
Reference Supplement.



Contents:

	MEMORY 
	  requirements
	  Freeing Memory Under 1MB
	  Expanded Memory

	SUPER VGA DRIVERS
	  notes on universal vesa option (low speed)

	THRUSTMASTER STICKS

===============================================================================

MEMORY
======

1 Requirements
--------------

	under 1Mb:	   485Kb of conventional memory to load program
			+  70Kb of conventional or UMB memory for VGA (555K)
			+  85Kb of conventional or UMB memory for SVGA(570K)
			  (20Kb for sound and music is included above)
	ems:		2.2 Mbytes for VGA
	ems:		2.5 Mbytes for the High Speed SVGA & VESA drivers
	ems:		3   Mbytes for the Universal VESA driver



The under 1Mb memory figure given above assumes that the additional conventional 
or upper memory is available as one continuous block. It is likely that 
slightly higher figures will be required if the memory comes from 2 or more 
separate blocks.

For example if you have 540K of conventional (485+55K) and 32K of UMBs free
(additional=55k+32k=87K) you may find that SVGA mode will pop out during the 
game with a memory error message even though there would seem be a large 
enough total. Estimate an addititional 5K overhead per additional region 
(and ignore blocks under 5K in size) when trying to tune your memory map, 
or try to merge regions in order to reduce the overhead.

Type mem at the DOS prompt to find the memory available on your computer.
The figures required are "Total under 1MB" third figure (free), 
and "Free Expanded (EMS)".

For the demo the main program size is a little lower (about 470K)

2 Freeing Memory Under 1MB
--------------------------

2.1 Introduction
----------------

This section describes how you can make enough memory available for Dawn Patrol 
to run on almost any machine, even with a CD-ROM, SVGA, and MUSIC drivers 
installed.


If you are not using MS-DOS, but are using Novell or DR-DOS then you will have 
to assume an equivalence when MS-DOS version numbers are mentioned.




2.2 Security boot disk
--------------------


To release memory for Dawn Patrol and other games you will have to make edits to
your config.sys and autoexec.bat files (set-up files). We suggest that you make a security
boot disk now. If your machine stops working as a result of an edit to your set
up files, you can use the boot disk to restore your system.

If you use Stacker or Superstore and Dawn Patrol is installed onto the compressed
drive then you will have to use the instructions provided with the compression
software on how to make a boot disk that lets you access the compressed drive.

To make a security boot disk, from the DOS prompt:

1)	FORMAT /S A:

2)	MD A:\OLD

3)	COPY C:\AUTOEXEC.BAT A:\OLD

4)	COPY C:\CONFIG.SYS A:\OLD

5)	remove the floppy


To use the security boot disk:

1)	Place the recovery floppy in the drive

2)	Reboot the machine

3)	COPY A:\OLD\AUTOEXEC.BAT C:\

4)	COPY A:\OLD\CONFIG.SYS C:\

5)	remove the floppy

6)	Reboot the machine

The machine should now behave as it did before you made any edits to 
your setup files.


2.3 Game boot disk
------------------

Section 2.5 contains advice on how to modify your setup files. It is 
possible to make these edits on either the setup files in your c: drive 
or on a game boot disk. 



Edits made on your c: setup files will effect your machine every time you 
reboot from the hard drive. Edits made on the game boot disk are only 
effective when you boot with the game boot disk.

Some edits will work with all software and could be included on your c: 
drive setup files. Other edits will not work with some software. Some 
experimentation is required once you have successfully configured a 
bootdisk that runs Dawn Patrol.

In the following text, we will assume that a game disk is being used.  

DOS 6.x users may wish to make alternate boot setups.

To make the boot able disk:

1)	Place the recovery floppy in the drive

2)	COPY C:\AUTOEXEC.BAT A:

3)	COPY C:\CONFIG.SYS A:

4)	Edit a:CONFIG.SYS

5)	All lines starting DEVICE=\something become DEVICE=C:\something

6)	Similarly, any	DEVICEHIGH=\something becomes DEVICEHIGH=C:\something
			INSTALL=\something becomes INSTALL=C:\something
			INSTALLHIGH=\something --> INSTALLHIGH=C:\something
			SHELL=\something becomes SHELL=C:\something


7)	Save the file

8)	Edit a:AUTOEXEC.BAT

9)	Insert 1 new line at the start which reads:
		C:

10)	Save the file

Now, if you reboot the machine with the floppy in the drive, it will boot 
somewhat slower, but the messages on the screen will look the same.

If this is successful then you can move forward. Anytime from now on that we
mention AUTOEXEC.BAT or CONFIG.SYS we will mean the versions on A: floppy.


2.4 Config.sys and Autoexec.bat
-------------------------------

This section describes some of the likely contents of the two setup files.
Please try and identify the equvalent lines in your setup files so that you
will be able to modify them as described in (2.5).

First, Config.SYS:

1) A memory manager - one of:

	DOS:	Device=c:\dos\himem.sys
		Device=c:\dos\emm386.exe

	or	Device=c:\windows\himem.sys
		Device=c:\windows\emm386.exe


	QEMM:	Device=c:\qemm\qemm386.sys

	386Max:	Device=c:\386max\386max.sys

2) Memory: files and buffers

	To get DOS out of conventional memory in Dos5 or Dos6:
		DOS=HIGH,UMB	

	To minimize the size of DOS and still run Dawn Patrol:
		FILES=10
		BUFFERS=30     <- in DOS 5 or 6. In others BUFFERS=1
		FCBS=1,0
		STACKS=0,0
   
	The figures above are ideal for Dawn Patrol. Yours may be different.

	
The following lines are in CONFIG.SYS and AUTOEXEC.BAT.
Please go through CONFIG.SYS for points 3,4,5,6,7. 
Then, if neccessary, edit AUTOEXEC.BAT and check through the points again.

3) Disk cacheing software to speed access to the harddisk and possibly
   speed up the CD drive as well:
   CONFIG.SYS may contain 	DEVICE=C:\DOS\SMARTDRV.SYS

   AUTOEXEC.BAT may contain	SMARTDRV
			or	\DOS\SMARTDRV
			or	\WINDOWS\SMARTDRV
			or	lh SMARTDRV
			or	loadhigh SMARTDRV

   Cacheing software is also provided in the NORTON UTILITIES and PC TOOLS:
   CONFIG.SYS:		Device=C:\NU\NCACHE-x.SYS	
		or	Device=C:\PCTOOLS\PCCACHE.SYS

   AUTOEXEC.BAT:	C:\NU\NCACHE-x
		or	C:\PCTOOLS\PCCACHE

4) A mouse driver - something like:

	In Config.sys:		device=c:\mouse\mouse.sys
	or
	In autoexec.bat:	c:\mouse\mouse

	"c:\mouse\" might be "c:\dos\" or "c:\windows\"

5) To run the CD version you need 1 line each in Config.sys 
   and Autoexec.bat to enable your CD:

	The line in config.sys is provided by your CD manufacturer
	so it varies a lot. The following sould give you some idea:
	In Config.sys:		
			Device=c:\cddrv\cddrv.sys /d:"something"

	The line in autoexec.bat is pretty standard. There are only 3
	different styles:
			c:\dos\MSCDEX /L:r /D:"something" /M:xx

		or	c:\windows\MSCDEX /L:r /D:"something"  /M:xx

		or	c:\cddrv\MSCDEX /L:r /D:"something" /M:xx
 
6) If you run any disk compression then the lines in Autoexec.BAT or 
   Config.SYS associated with the disk compression MUST NOT BE DELETED.

7) If you need to load any device drivers to access the hard disk where 
   Dawn Patrol is installed then the line that loads this driver 
   MUST NOT BE DELETED.
		

8) If you have an SBPRO, SB16, or AWE32 then you will find additional 
   lines in AUTOEXEC.BAT that reference the C:\SBPRO or C:\SB16 
   directory. DO NOT DELETE THESE LINES if you want to hear the sound 
   effects and music. Also, do not delete the statement: SET BLASTER=
   

Notes:

Whereever DEVICE= is mentioned above, your CONFIG.SYS might say DEVICEHIGH=

2.5 Modifying Config.sys and Autoexec.bat
-----------------------------------------

Once you have familiarised yourself with the commands mentioned in 2.4 you 
can attempt to tune the setup by trying the following modifications.

You should try each of these options in turn, and see how much your memory 
has improved towards the targets listed at the start of this file.

A) If you find any lines in the sdetup files that are not mentioned in 2.4, 
   you should be able to delete them. They should not be required to run 
   Dawn Patrol. On the other hand, other software that you run may require 
   the lines. 

B) Use the optimal values for the following lines in CONFIG.SYS:
	To get DOS out of conventional memory in MS-Dos5 or MS-Dos6:
		DOS=HIGH,UMB	
	To minimize the size of DOS and still run Dawn Patrol:
		FILES=10
		FCBS=1,0
		STACKS=0,0
	In Dos 5 or DOS 6 set:
		BUFFERS=30     
	In Dos 4 try:
		BUFFERS=30 /x
	In Dos 3 try:
		BUFFERS=1


C) You can reduce the size of your CD driver (2.4.5). Find the line in 
   AUTOEXEC.BAT for MSCDEX. Search for the parameter /E. If it is not 
   there then add it. You may now wish to increase the /M:xx buffers.

D)   Some software "grows" when loaded high in UMBs, using more
     memory than it does when loaded in conventional memory.  In
     particular, some CD drivers have this problem.  Try changing
     "DEVICEHIGH /x =" to "DEVICE =" in config.sys and removing
     LOADHIGH or LH from the front of commands in AUTOEXEC.BAT. 
     If the total below 1Mb increases, then your only worry is
     whether there is at least 475K of conventional memory left
     for loading the program.  If you don't have this
     conventional memory, you will have to selectively reverse
     these changes and identify which software "grows" when
     loaded in UMBs.

E) EMM386.EXE (2.4.1) can be modified to give DOS users more memory.

   You should expect MEM to say that the TOTAL UPPER memory is at 
   least 96K.

   You should ensure that the parameter ON is on the line, not OFF 
   or AUTO. Unless running the UNIVERSAL VESA SVGA driver 
   DOS 5 and 6 users will also have a RAM parameter.

   First, any X= statements for network cards or scanner scan be removed, 
   as Dawn Patrol will not access this hardware. 
   Do not remove any X= statements required by your DISK CONTROLLER.
   Of course, you will need to use the normal boot for other programs 
   to access this hardware!

   Second, you can add the statement I=B000-B7FF to give Dos5 and Dos6 
   32K extra memory. Note that normally Dos 5 users will be unable to 
   run WINDOWS with this parameter set.

   Dos 5 users of PCs (not PS2) may also add I=E000-EFFF to get 64K extra.

   It is good to place the page frame at one end to provide contiguous 
   memory. The parameter FRAME=C800 or FRAME=E000 will do this.


F) Disk caches (2.4.3) really speed up disk access, but can take a lot 
   of memory. SMARTDRV.EXE provided in dos 5 and 6 takes 20K. Removing 
   this line will save memory, but slows the game down a little.

   Norton's NCache-s.EXE will only take 5K if you use EMS.

G) It is convenient to use a mouse (2.4.4) with Dawn Patrol, but not essential.
   removing your mouse driver may free up to 15K. There are special mouse
   drivers that take very little memory and work mainly from EMS.

H) Sounds and Music

   High quality sound effects requires a 20K buffer
   Low quality sound effects requires 10K

   Music requires a buffer of 13K

   At the start of the game 1 buffer is declared to the largest of these 
   sizes. Thus, by using low quality sound effects and music 7K is saved 
   compared to high quality sound effects. 3K more is saved by having no 
   music, and the whole 20K is saved by having no sound effects or music.
   


I) The following modifications to EMM386.EXE will make even more memory 
   available to Dawn Patrol, but should only be attempted after all else 
   fails:

   In order to use the UNIVERSAL VESA SVGA driver many users will already 
   have had to insert the statement I=A000-AFFF. If you don't mind the 
   danger of Dawn Patrol crashing when you exit, but running fine, then you 
   can also add the parameter I=B800-BFFF.

   If you are NOT using the UNIVERSAL VESA driver, but are still desparate
   for memory then you may have to remove the RAM parameter and add the
   parameter I=B800-BFFF.

   Note that Dawn Patrol will still find your UMBs in this configuration even
   though DOS couldn't, so you only have to ensure that there is 490K 
   available at the DOS prompt with all your device drivers and TSRs loaded
   low.

   Dawn Patrol is also able to help users of DOS versions 3 and 4 who's 
   EMM386.SYS will accept I= arguments, or users of hardware EMS cards
   by generating UMBs in the included areas. Try some of the following:
	FRAME=E000
	I=C800-DFFF  or INCLUDE=C800-DFFF     - this is worth 96K
	I=B000-B7FF  or INCLUDE=B000-B7FF     - this is worth 32K
	I=B800-BFFF  or INCLUDE=B800-BFFF     - this is worth 32K
   These are not guaranteed to work, but may work with some vendor versions.

J) Quarterdeck's QEMM can greatly increase available UMBs, and hence free
   more main memory by moving and hiding the ROMs. However this 'stealth'
   technique is not compatable with that certain Video cards such as CIRRUS.
   We have found that the CIRRUS and some other cards will work OK 
   under stealth in two different ways which will maximise your UMBs:
   1) ST:M FRAME=C000 means that the video ROM is hidden, but not moved.
	UMBs are available from D000-FFF0 giving 190K
   2) ST:M XST=C000 FRAME=C800 un-stealths the video, but stelths the system.
	The region from D800 to FFF0 is UMBs giving 170K

   If ST:F works with your machine then try disabling shadowing in the 
   boot-up bios options, and try OPTIMIZEing again.
   We have found that it is often better to stealth over the video ROM using 
   ST:F FRAME=C000 than the system ROM using ST:F FRAME=EC00 as QEMM will
   often map over parts of the system ROM anyway.
   
   QEMM Stealth version 7 is also able to 'hide' DOUBLESPACE, and move lumps
   of DOS. I have seen 650,000 bytes at the dos prompt! (640K=655,360 bytes).

   I don't expect users of QEMM or 386 MAX to have major problems finding
   enough memory, especially with the QEMM stealth features.

   
2.6 Example Configurations
--------------------------

The highest memory requirement for Dawn Patrol is 622k.


2.6.1 Hard Disk user
--------------------

A hard disk user's machine under dos 5 or 6 can easily have the 
following configuration:

630K at the DOS prompt
96K of UMBs (+64K page frame) filled with:
	EMM386.SYS	 2K
	SMARTDRV.EXE	20K
	mouse		15K
			===
			40K  leaving 56k free


available memory:	630+56 = 686k

Of course, a further 40K would have disappeared if DOUBLESPACE was installed.



	
The config.sys will look something like:

	DOS=HIGH,UMB
	DEVICEHIGH=C:\DOS\HIMEM.SYS
	DEVICEHIGH=C:\DOS\EMM386.EXE ON RAM FRAME=E000 2500
	STACKS=0,0
	FILES=10
	BUFFERS=30
	FCBS=1,0
	devicehigh=c:\mouse\mouse.sys


(for the universal driver line 3 might read:
	DEVICE=C:\DOS\EMM386.EXE ON  FRAME=E000 I=A000-AFFF 3000
)


The autoexec.bat will look something like:

	@echo off
	c:
	PATH=C:\DOS;C:\WINDOWS
	c:\mouse\mouse
	LH C:\DOS\SMARTDRV.EXE


2.6.2 CD users
--------------

For a CD user, the following configuration is easily achieved:
	
610K at the DOS prompt with MSCDEX loaded low.


128K of UMBs (I=B000-B7ff and page FRAME=E000) filled with:
	EMM386.SYS	 2K
	CDDRV.SYS	30K
	SMARTDRV.EXE	20K
	mouse		15K
			===
			70K leaving 58k free
	
available memory:	610+58 = 668k - so the I= is not necessary

A further 40K would disappear if DOUBLESPACE was installed
then the I= may be necessary, or SmartDrv may have to be removed.

	
For the CD user the config.sys will look something like:

	DOS=HIGH,UMB
	DEVICE=C:\DOS\HIMEM.SYS
	DEVICE=C:\DOS\EMM386.EXE ON RAM FRAME=E000 I=B000-B7FF 2500
	DEVICEHIGH=C:\cddrv\cddrv.sys /D:"name"
	STACKS=0,0
	FILES=10
	BUFFERS=30
	FCBS=1,0
	devicehigh=c:\mouse\mouse.sys

(for the universal driver line 3 might read:
	DEVICE=C:\DOS\EMM386.EXE ON FRAME=E000 I=A000-AFFF I=B000-B7FF 3000
)

For the CD user the autoexec.bat will look something like:

	@echo off
	c:
	PATH=C:\DOS;C:\WINDOWS;C:\cddrv
	c:\mouse\mouse
	MSCDEX /L:r /E /M:30 /D:"name"
	LH C:\DOS\SMARTDRV.EXE




3 Expanded Memory
-----------------

You will be reading this if mem does not report enough Free Expanded (EMS).


If you have no "Total expanded" or the section does not exist, then you need
to put the line
	DEVICE=C:\DOS\EMM386.EXE ON RAM 3000 
near the top of your CONFIG.SYS on a new line after DEVICE=C:\DOS\HIMEM.SYS.

If The line DEVICE=C:\DOS\EMM386 is already there then see if there is the
parameter OFF or AUTO on the line. If there is then you need to remove that 
parameter and replace it with ON. This will reduce your UMBs, and you may 
then not have enough memory under 1Mb.

If you have less than the required amount of Free Expanded then take the 
following steps in turn until your problems are solved (we hope!):

1) Look at the line Extended (XMS). If the total XMS is much more than the
   total EMS and the free XMS is enough to make up the amount you need
   then edit Config.sys and find the line with
   DEVICE=C:\DOS\EMM386.SYS 
or DEVICE=C:\DOS\EMM386.EXE
or DEVICEHIGH=C:\DOS\EMM386.EXE
   and increase the number by the difference in K.
   Reboot, and see if you have gained enough EMS to run Dawn Patrol.


   QEMM, 386MAX, DR-DOS and DOS6 treat EMS and XMS as a common memory pool, 
   unless you have configured with a maximum EMS, so the figures for EMS and 
   XMS will be approximately the same.

2) Either Total Expanded or Total Extended should be over the figure you 
   need, i.e. 2,500K or you will have to fit more memory to your machine. 
   A 4MB machine should provide 2,900K of expanded memory, or 3,000K XMS.

3) You will have to remove a driver that is using your Expanded or Extended
   memory in order to make room for Dawn Patrol. These include RAM disks and
   disk caches.

   Edit your CONFIG.SYS and AUTOEXEC.BAT files and look for lines starting 
   with the following:

   DEVICE=c:\dos\RAMDRIVE.SYS
or DEVICEHIGH=c:\dos\RAMDRIVE.SYS:
   	Dawn Patrol does not make use of RAM disks, so this line should be 
	disabled by inserting REM in front 
	(i.e. REM DEVICE=c:\dos\RAMDRIVE.SYS)

   DEVICE=C:\DOS\SMARTDRV.SYS
   SMARTDRV
   lh SMARTDRV
   loadhigh SMARTDRV
   \DOS\SMARTDRV
   \WINDOWS\SMARTDRV
	Dawn Patrol can be speeded up by using a disk cache, but they 
	can use a lot of memory. To reduce SMARTDRiVe's memory look for a 
	number after the text listed above.

	If there is a number reduce it by the amount of EMS you need (in K).
	If there is no number then try putting 256 (The default is 2,000K).
	If this does not give enough EMS then comment out the line 
	by putting REM in front (eg REM \DOS\SMARTDRV)

   Your RAM disk or disk cache may be provided by some-one other that microsoft.
   The NORTON UTILITIES and PC TOOLS both contain cache and ram disk utilities.

   There are other ways you could be using up your XMS or EMS - a printer
   buffer for example, or a network cache.

   After making these edits save out and reboot. Type MEM again to see the
   gain in free XMS and EMS memory.

   The result may have freed either XMS or EMS, depending how the ram disk 
   or smartdrv was configured. If there is now enough XMS, but not enough EMS 
   free then you need to repeat step (1) above.


===============================================================================


SUPER VGA DRIVERS
=================

After you have installed the DAWN PATROL program disk set you will be
able to run the game in standard VGA mode.

You can then run SVGATEST. This program will attempt to set up an SVGA library
for your graphics card. If it is successful, then a high resolution
version of the title screen will be displayed. 

This indicates that you will be able to run DAWN PATROL in high
resolution. At this stage you should install the SVGA graphics disk set.

We have provided custom SVGA drivers, a High Speed VESA driver and a 
Universal VESA driver. The Universal driver should work on most cards but 
is slower than the other two options. 
Please run SVGATEST to decide which driver to use.

At the beginning of SVGATEST a list including the following chipsets 
will be displayed:

		Cirrus
		ET4000
		Trident
		#9 GXE
		ATI Mach 32 - requires that the provided VESA TSR has been run.


There are a number of manufacturers' brand names. In the following list, brand
names are matched with their driver:

		Hercules Dynamite	ET4000
		Genoa 8500VL		Cirrus
		Genoa 3989VL-12		ET4000
		Trident 8900		Trident
		Trident 9000		Trident
		Cirrus Logic GD-54xx	Cirrus
		Older Diamond Stealth	Vision
		Newer Diamond Stealth	ET4000

If you don't know which chipset you have, then select "OTHER" , then
"Technical Information" in the SVGATEST.

The following cards have been tested and work with the High Speed VESA driver:

		Cirrus Logic GD-54xx
		ET3000
		ET4000
		Trident
		#9 GXE
		Older Diamond Stealth
		Newer Diamond Stealth
		ATI Mach 32


The following cards have been tested and work with the Universal VESA driver:


		S3 cards including Orchid Fahrenheit S3
		Pegasus
		Paradise - still working on high speed driver (Sept '94)

Note that to use the UNIVERSAL VESA driver the card must be LOCAL BUS 
(VLB or PCI) to get an acceptable framerate during the ground section, 
and a DX2/66 or Pentioum 66 MINIMUM is needed to fly using the 
UNIVERSAL VESA drivers.

Please contact Entertainment International for the latest 
information on these drivers:

In Europe:	Customer Services:	0181 343 9143
In US:		Technical Support:	(301) 916 9303 	

notes on universal vesa option (low speed)
------------------------------------------

You must make ONE of the following edits to your C:\CONFIG.SYS file,
depending on the memory management software you are using:

On DOS versions before DOS 5 on the line starting DEVICE=C:\DOS\EMM386.SYS:
	Add the parameter:		 i=A000-AFFF

On DOS versions 5 and after on the line starting DEVICE=C:\DOS\EMM386.SYS:
	Find, and remove, the word:	 RAM
	And add the parameter:		 i=A000-AFFF
	Also, find the line saying DOS=HIGH,UMB and change to DOS=HIGH
	or,  find the line saying  DOS=UMB and insert REM in front.

For Quarterdeck QEMM 386, on the line starting DEVICE=C:\QEMM\QEMM386.SYS:
	Add the parameter: 	 	 VREMS

        -If you do not have a monochrome monitor you can avoid rerunning 
         OPTIMISE by also adding the following parameter:
                                         RAM=B000-B7FF

	We have not managed to get WINDOWS to accept this unless you insert
	X=B000-BFFF -in which case you will have 32K less UMBs, and you will 
	have to re-run OPTIMIZE.

For 386 MAX, on the line starting DEVICE=C:\386MAX\386MAX.SYS:
	Add the parameter: 	 	 I=A000-AFFF
	I don't know what effect this has on Windows :->


After the "DOS 5 and after" edit some software won't work until the edit is
reversed. You may wish to make a bootable floppy especially for Dawn Patrol.
See the section above on memory optimisation to do this.
Then, perform the edit described above on A:\CONFIG.SYS


===============================================================================

THRUSTMASTER STICKS
===================




The Thrustmaster option on the preferences screen refers only to the Mark I 
joystick.

If you have the F16 stick then select the standard joystick option. The coolie
hat and switches can be programmed using the Thrustmaster utilities.

If you connect a Weapons Control System to your Mark I stick then you can 
either:
		set the hat switch to analog and the red switch to digitial
		or calibrate. In this case the coolie hat will
		function in the same way as if the WCS was not connected.

or:
		set the hat switch to digital and the red switch analog or
		calibrate. In this case the coolie hat will not function but
		the WCS throttle will be available. To calibrate select
		the "Joy-Throttle" option on the Preferences page.
		

In both cases, if the red switch is set to calibrate, all the red buttons are
disabled. Otherwise the buttons can be programmed using the Thrustmaster
utilities.


We have provided the file ROWAN.M50 which is a macro list
of all the keys in the game. Your can use this file to produce your own button
file. The file ROWAN.M50 can be renamed to ROWAN.MDF for use with the WCS
mark II
		
