MULTI-TREK - Revision history

Vaxorcist: /* External links */ Category "VMS Practical Guides" added

2025-08-23T18:24:38Z

‎External links: Category "VMS Practical Guides" added

Vaxorcist: Made "RATFIV" a link

2024-11-19T08:53:50Z

Made "RATFIV" a link

Vaxorcist: Category "SIMH Tutorials" added

2024-02-01T17:15:59Z

Category "SIMH Tutorials" added

Vaxorcist: /* How to run MTREK on a VAX */

2024-02-01T17:14:43Z

‎How to run MTREK on a VAX

Vaxorcist: Vaxorcist moved page MTREK to MULTI-TREK

2023-05-05T12:44:51Z

Vaxorcist moved page MTREK to MULTI-TREK

Vaxorcist: Link to MTREK kit added

2023-05-05T09:47:33Z

Link to MTREK kit added

Vaxorcist: Additions how MTREK was found and debugged

2023-05-04T14:14:08Z

Additions how MTREK was found and debugged

Vaxorcist: MAP help added

2023-04-30T17:06:55Z

MAP help added

Vaxorcist: Manual additions added

2023-04-29T06:02:26Z

Manual additions added

Jnc: rm dup ==External links==

2023-04-28T21:56:06Z

rm dup ==External links==

← Older revision		Revision as of 18:24, 23 August 2025
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	[[Category: Games]]		[[Category: Games]]
	[[Category: SIMH Tutorials]]		[[Category: SIMH Tutorials]]
		+	[[Category: VMS Practical Guides]]

@@ Line 3: / Line 3: @@
 I used the [[ods2]] tool from the [[SIMH]] [https://github.com/open-simh/simtools tools collection] to transfer the MTREK files to a VMS disk image file.
-I decided to use the [[FORTRAN]] source files instead of the [[RATFIV]] ones, because I could not get the RATFIV [[compiler]] going (I will try that again later).
+I decided to use the [[FORTRAN]] source files instead of the [[RATFIV]] ones, because I could not get the [[RATFIV]] [[compiler]] going (I will try that again later).
 The date of the RATFIV source files (28-APR-1982) gave me a clue to try [[VMS]] V3 for MTREK, which proved to be successful.

← Older revision		Revision as of 17:15, 1 February 2024
Line 706:		Line 706:

	[[Category: Games]]		[[Category: Games]]
		+	[[Category: SIMH Tutorials]]

@@ Line 108: / Line 108: @@
 == Status Quo ==
-== How to run MTREK on a VAX ==
+== How to run MTREK on a real VAX or SIMH VAX ==
 Get the [https://drive.google.com/drive/folders/1LznfGLX4LDHMgJRgRLYSItrvrFNLwri9?usp=sharing MTREK kit] and follow the instructions included.

← Older revision		Revision as of 09:47, 5 May 2023
Line 109:		Line 109:

	== How to run MTREK on a VAX ==		== How to run MTREK on a VAX ==
		+
		+	Get the [https://drive.google.com/drive/folders/1LznfGLX4LDHMgJRgRLYSItrvrFNLwri9?usp=sharing MTREK kit] and follow the instructions included.

	== MTREK Manual ==		== MTREK Manual ==

← Older revision	Revision as of 12:44, 5 May 2023
(No difference)

← Older revision		Revision as of 14:14, 4 May 2023
Line 1:		Line 1:
−	While searching the Internet for information on the [[VAX]] [[TREK7]] game, I stumbled over another Star-Trek game called "MULTI-TREK" or just '''MTREK''' in the [[DECUS]] [https://www.digiater.nl/openvms/decus/ collection of VMS software tapes].	+	While searching the Internet for information on the [[VAX]] [[TREK7]] game, I stumbled over another Star-Trek game called '''MULTI-TREK''' or just '''MTREK''' in the [[DECUS]] [https://www.digiater.nl/openvms/decus/ collection of VMS software tapes].
		+
		+	I used the [[ods2]] tool from the [[SIMH]] [https://github.com/open-simh/simtools tools collection] to transfer the MTREK files to a VMS disk image file.
		+
		+	I decided to use the [[FORTRAN]] source files instead of the [[RATFIV]] ones, because I could not get the RATFIV [[compiler]] going (I will try that again later).
		+
		+	The date of the RATFIV source files (28-APR-1982) gave me a clue to try [[VMS]] V3 for MTREK, which proved to be successful.
		+
		+	Using the @BUILD command gave some error messages, which were overcome in some steps by trial and error.
		+
		+	The nasty surprise showed up when I started the MTREK program that had compiled and linked so easy.
		+	Directly after entering the chosen vessel number, the program "froze" and did not accept anymore input except CTRL-C or CTRL-Y, both of which aborted the game.
		+	After studying the sources, and some simple debugging attempts, I decided to employ the VAX [[debugger]] to obtain more information as to what was going on.
		+
		+	A helpful chap from the U.K., Dave Roberts, replied to my call for help on the [https://forum.vcfed.org/index.php?forums/dec/ VCFed DEC Forum]; and together we attempted to debug and correct the errant behaviour.
		+
		+	The first step to success was the detection of the endless loop that caused the "freezing" of the program.
		+	Then Dave found the suspicious subroutine "INCHAR", and after analyzing the QIO calls and their return codes with two VMS manuals I provided, he finally found out that a necessary initialisation routine was commented out for whatever reason. After removing the "C" (for "Comment") in the respective source line, followed by re-compiling and re-linking, MTREK ran as expected. Little cause for a great event ...
		+
		+	Hurray, game time!
		+
		+	This is an example of a player's view at the universe:
		+
		+	Energy : 9848.5 * * Scores
		+	Shields : 0.0
		+	R 1 -1000. *
		+	Warp : 3.00 * 2 0.
		+	Course : 3.00 3 0.
		+	4 0.
		+	X co-ord : 38.8 * 5 0.
		+	Y co-ord : 89.5 1 6 0.
		+	# 7 0.
		+	Torps : 10 8 0.
		+	Seekers : 4
		+	Hyper : 3
		+	Scan: 2
		+	Def Ship : 2 * Dir : 1.75
		+	Def Direc: 1.75 Dist: 51.08
		+	* Sect: 7, 2
		+	. .

	== Introduction to MTREK ==		== Introduction to MTREK ==

@@ Line 532: / Line 532: @@
 .  Setting black hole speed to 0 will create no black holes to eat up
        your vessel.
 == External links ==

← Older revision		Revision as of 06:02, 29 April 2023
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	Now mop up the blood, sweat, and tears; logout; and go home.		Now mop up the blood, sweat, and tears; logout; and go home.
		+
		+	Some useful additions to the original manual:
		+
		+	5.0 ADDITIONS TO THE MANUAL
		+
		+
		+	5.1 ADDITIONS TO STARTING THE GAME
		+
		+	There are two special values for the startup settings which make
		+	playing easier for the beginner:
		+
		+	1. Setting star density to 0 results in no stars in your way at all.
		+
		+	2. Setting black hole speed to 0 will create no black holes to eat up
		+	your vessel.

	== External links ==		== External links ==

@@ Line 1: / Line 1: @@
-While searching the Internet for information on the [[VAX]] [[TREK7]] game, I stumbled over another Star-Trek game called "MULTI-TREK" or just "MTREK" in the [[DECUS]] [https://www.digiater.nl/openvms/decus/ collection of VMS software tapes].
+While searching the Internet for information on the [[VAX]] [[TREK7]] game, I stumbled over another Star-Trek game called "MULTI-TREK" or just '''MTREK''' in the [[DECUS]] [https://www.digiater.nl/openvms/decus/ collection of VMS software tapes].
 == Introduction to MTREK ==
@@ Line 521: / Line 521: @@
 * [https://www.digiater.nl/openvms/decus/vax82a/mtrek/ MTREK on the VAX SYSTEMS SIG SPRING 82 SYMPOSIUM TAPE]
 [[Category: Games]]