English Amiga Board


Go Back   English Amiga Board > Other Projects > project.SPS (was CAPS)

 
 
Thread Tools
Old 19 December 2019, 03:03   #501
Abaddon
Registered User

Abaddon's Avatar
 
Join Date: Apr 2010
Location: Chicago/USA
Age: 50
Posts: 425
Quote:
Originally Posted by dlfrsilver View Post


Hi, I checked your dumps.

Downhill challenge is good so IPF, and gold of the aztecs as well.

For this last one, did you noticed it has on disk 1 the protoscan longtrack protection? This in track 79.

It doesnt initialise at the start, so I guess a routine for checking is triggered later. I pmed you.
Didn't know the protection track was protoscan, but it is the same protection used in many Gremlin based games. In the disk-analysis world it is labeled as gremlin_longtrack

Excerpt from Keir's protection code

/* TRKTYP_gremlin_longtrack: Lotus I/II, + many others
* u16 0x4124,0x4124
* Rest of track is (MFM-encoded) zeroes, and/or unformatted garbage.
* The contents are never checked, only successive sync marks are scanned for.
*
* Track is checked to be >= 102400 bits long.
* Specifically, protection checks for >= 6400 raw words between
* successive sync marks. Track contents are not otherwise checked or tested.
*
* Track is typically ~105500 bits long. */

As for the confused....how to tell if you have a different version of a game than that which has been preserved as an official IPF.
Abaddon is offline  
Old 19 December 2019, 11:46   #502
dlfrsilver
CaptainM68K-SPS France
dlfrsilver's Avatar
 
Join Date: Dec 2004
Location: Melun nearby Paris/France
Age: 42
Posts: 8,311
Send a message via MSN to dlfrsilver
basically, when you have an alternate version, the whdload slave doesn't work with the game.

Yeah Gremlin name is a bad idea, because Gremlin, us gold, and even psygnosis used the protoscan longtrack protection.
dlfrsilver is offline  
Old 28 December 2019, 14:02   #503
BarryB
Amigaholic

 
Join Date: Dec 2009
Location: UK
Posts: 3,122
Fly Harder - IPF #1382 now in The Zone!

Thanks to dlrfsilver for verifying the dump and sending the Official IPF
BarryB is offline  
Old 28 December 2019, 14:19   #504
Viceroy
Registered User
 
Join Date: Jul 2006
Location: Sunderland
Posts: 587
Thank you ;-)
Viceroy is offline  
Old 28 December 2019, 14:22   #505
BarryB
Amigaholic

 
Join Date: Dec 2009
Location: UK
Posts: 3,122
Belated Christmas pressie
BarryB is offline  
Old 28 December 2019, 16:03   #506
Viceroy
Registered User
 
Join Date: Jul 2006
Location: Sunderland
Posts: 587
You're getting there ;-)
Viceroy is offline  
Old 29 December 2019, 11:33   #507
DamienD
Global Moderator

DamienD's Avatar
 
Join Date: Aug 2005
Location: London / Sydney
Age: 43
Posts: 16,276
Quote:
Originally Posted by BarryB View Post
Fly Harder - IPF #1382 now in The Zone!

Thanks to dlrfsilver for verifying the dump and sending the Official IPF
Thanks for the file guys

...now uploaded to the EAB File Server under the directory /Commodore_Amiga/TOSEC/[not in TOSEC] IPFs - Official.
DamienD is online now  
Old 02 January 2020, 20:35   #508
BarryB
Amigaholic

 
Join Date: Dec 2009
Location: UK
Posts: 3,122
Quote:
Originally Posted by dlfrsilver View Post
basically, when you have an alternate version, the whdload slave doesn't work with the game.

Yeah Gremlin name is a bad idea, because Gremlin, us gold, and even psygnosis used the protoscan longtrack protection.
There was a disk duplication company called Protoscan, duplicated disks for some Amiga magazines, one of the founders Andy Eltis developed the 'Protec' disk protection, so is the 'Protoscan' protection a variant of 'Protec'?
BarryB is offline  
Old 02 January 2020, 21:11   #509
dlfrsilver
CaptainM68K-SPS France
dlfrsilver's Avatar
 
Join Date: Dec 2004
Location: Melun nearby Paris/France
Age: 42
Posts: 8,311
Send a message via MSN to dlfrsilver
Quote:
Originally Posted by BarryB View Post
There was a disk duplication company called Protoscan, duplicated disks for some Amiga magazines, one of the founders Andy Eltis developed the 'Protec' disk protection, so is the 'Protoscan' protection a variant of 'Protec'?
Protoscan was based in Sheffield. Psygnosis, Gremlin and U.S.gold used their services.

Why not asking Andy on facebook what is all about it ?
dlfrsilver is offline  
Old 02 January 2020, 21:44   #510
BarryB
Amigaholic

 
Join Date: Dec 2009
Location: UK
Posts: 3,122
Quote:
Originally Posted by dlfrsilver View Post
Protoscan was based in Sheffield. Psygnosis, Gremlin and U.S.gold used their services.

Why not asking Andy on facebook what is all about it ?
Because I don't 'do' facebook or ANY social media

I'm sure Encyclopaedia Denisica will know
BarryB is offline  
Old 02 January 2020, 22:08   #511
dlfrsilver
CaptainM68K-SPS France
dlfrsilver's Avatar
 
Join Date: Dec 2004
Location: Melun nearby Paris/France
Age: 42
Posts: 8,311
Send a message via MSN to dlfrsilver
Quote:
Originally Posted by barryb View Post
because i don't 'do' facebook or any social media :d

i'm sure encyclopaedia denisica will know
lol xd
dlfrsilver is offline  
 


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
SPS/CAPS incomplete for ever Wepl project.SPS (was CAPS) 7 21 August 2018 14:39
How do I install SPS and CAPS games with Whdload? retrogamer project.WHDLoad 8 06 July 2011 18:56
RFC: SPS/CAPS @ back2roots ? hippie2000 project.SPS (was CAPS) 29 07 November 2007 00:25
CAPS (SPS) Plugin... DamienD project.SPS (was CAPS) 8 08 November 2005 10:27
CAPS becomes SPS...!!! Joe Maroni News 37 24 August 2005 11:44

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +2. The time now is 23:35.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Page generated in 0.08999 seconds with 15 queries