Search found 189 matches

by Zippy
Sun Jun 28, 2020 5:34 pm
Forum: Hardware
Topic: Atari STE: Drive A: diplays files with cryptic extensions
Replies: 29
Views: 789

Re: Atari STE: Drive A: diplays files with cryptic extensions

I think there's something about the FDC dealing wth 16 ($10) bytes at a time, but not sure if it actually has a 16 byte hardware buffer or exactly how it works, or if the 16 byte chunks are processed by the DMA hardware. The file extension part will always be at the same offset into every 16 byte bl...
by Zippy
Sat Jun 27, 2020 11:45 am
Forum: Games - Requests
Topic: Games without good source
Replies: 9
Views: 23315

Re: Games without good source

Mercenary 3.st
Here's a very "quick and dirty" fix. Now has a slight extra delay while copying almost full memory around before starting game though.
by Zippy
Sat Jun 27, 2020 10:58 am
Forum: Games - Requests
Topic: Games without good source
Replies: 9
Views: 23315

Re: Games without good source

Not to forget, some cracks is duff from the start, those I cant do much about. For example. GFX error in Title Picture on Mercenary 3 - Cynix. probly a packer issue. Not my crack but I took a quick look at it. The game itself is not corrupted, it's just that the code is using all memory from $2000 ...
by Zippy
Tue May 05, 2020 5:54 pm
Forum: Professionals
Topic: Fastest way to move 256 words on 68030 TT for 4096 colour display
Replies: 42
Views: 4513

Re: Fastest way to move 256 words on 68030 TT for 4096 colour display

If it's just to display a static high colour pic could you wait until the start of the right border (by cycle counting from the hbl) before changing the palette? That would give you the whole right and left borders to switch colours before the line with those colours was displayed. Of course that wo...
by Zippy
Sun May 03, 2020 1:44 pm
Forum: News & Announcements
Topic: Leonard Tramiel Exclusive Text Interview - Great Atari Insight
Replies: 10
Views: 496

Re: Leonard Tramiel Exclusive Text Interview - Great Atari Insight

Nice interview, thanks.

If anyone's interested in more info. on Chuck Peddle and his development of the 6502 there's a great interview with him over here :

https://www.youtube.com/watch?v=enHF9lMseP8

nearly 4 hours, but well worth a watch!
by Zippy
Sun Apr 26, 2020 12:00 am
Forum: Coding
Topic: Trying to reverse engineer the game “Méwilo”
Replies: 3
Views: 503

Re: Trying to reverse engineer the game “Méwilo”

It's an early Cocktel Vision game so presumably using a similar interpreter system to the ST games Freedom and Emmanuelle, both of which were a nightmare to hack due to the interpreter (although I found out later that an attack on the TOS random number generation routine makes it quite easy to defea...
by Zippy
Tue Mar 24, 2020 12:23 pm
Forum: For sale / Wanted
Topic: WTD: PLUTOS by Micro Value
Replies: 23
Views: 7814

Re: WTD: PLUTOS by Micro Value

Mindscape release available here:

https://www.ebay.co.uk/itm/324113047536
by Zippy
Sat Mar 21, 2020 1:51 pm
Forum: News & Announcements
Topic: Book project "The Crackers" - Let's make this happen
Replies: 30
Views: 4697

Re: Book project "The Crackers" - Let's make this happen

I'll order a few volume 2/3 bundles and put them away in hope for a volume 1 re-print one day. :)

Or if anyone has a volume 1 for sale please let me know.
by Zippy
Wed Mar 18, 2020 10:22 am
Forum: News & Announcements
Topic: Book project "The Crackers" - Let's make this happen
Replies: 30
Views: 4697

Re: Book project "The Crackers" - Let's make this happen

Is there any possibility for a small re-print of volume 1 of Breakin' the Borders just to match the numbers you have remaining of volume 2 and 3, so you could sell only the complete sets? I'd buy a few complete trilogy sets to give away to friends, to support the new book. Might even be worth doing ...
by Zippy
Mon Nov 04, 2019 11:26 pm
Forum: Chat forum [ENG]
Topic: Cynix PO Box letters
Replies: 2
Views: 1334

Cynix PO Box letters

Some letters sent to the Cynix PO Box are now up @

https://gotpapers.scene.org/?p=3421

Enjoy the nostalgia trip! :)
by Zippy
Mon Oct 28, 2019 12:22 am
Forum: Menu Disks
Topic: Taking a game out of a menu disk?
Replies: 19
Views: 28655

Re: Taking a game out of a menu disk?

Here's the Cynix crack/trained version from the above menu fixed on it's own without the menu.
hunter.zip
by Zippy
Sat Oct 19, 2019 11:58 pm
Forum: Chat forum [ENG]
Topic: Medway Boys interview
Replies: 6
Views: 3604

Medway Boys interview

If you manage to reach the end without getting bored to death you might even find something interesting in the technical details. :)

https://codetapper.com/amiga/interviews/zippy/
by Zippy
Sun Oct 13, 2019 8:44 am
Forum: Website Discussions
Topic: Editing a message
Replies: 93
Views: 24228

Re: Editing a message

If posts can at least be edited for a few hours after posting I don't think it's so bad. In the few cases that I've edited old posts it wouldn't have been a big problem to flag them for a mod and I'm sure the edit would have been done as requested. For someone continually updating the first post of ...
by Zippy
Fri Oct 11, 2019 8:35 am
Forum: Website Discussions
Topic: Editing a message
Replies: 93
Views: 24228

Re: Editing a message

It often takes me 1 or 2 edits of a new post to sort out spelling/grammar mistakes. to add that extra thing I forgot to mention the first time or just to make the post more coherent after re-reading it. And it's the same on the other couple of forums I use regularly. I've also gone back to edit an o...
by Zippy
Wed Sep 18, 2019 6:28 pm
Forum: Games - Requests
Topic: Lookin for Single Disk Cracks of these
Replies: 5
Views: 9427

Re: Lookin for Single Disk Cracks of these

Update of the Missing titles! 2007 - 03 - 13!!!! War in the middle earth // Marcer Ancient thread bump! I found this War in Middle Earth single crack in an old disk box. The version on planetemu is missing disk 2 and seems to be uncracked, so thought it might be worth uploading it here. This was th...
by Zippy
Fri Sep 06, 2019 4:34 pm
Forum: Games - General
Topic: Dungeon Master Copy Protection
Replies: 3
Views: 3735

Re: Dungeon Master Copy Protection

Quite a few mistakes there... 1. "Enter a word from the manual" type protection wasn't always easy to remove 2. ST/Amiga disks had 80 tracks per side, not 40 3. Rob Northen protection wasn't based on a protected "long track" with no sectors, it was a single protected sector with non-standard data ra...
by Zippy
Mon Jun 03, 2019 8:59 am
Forum: Demos - General
Topic: Total Apathy Demo
Replies: 5
Views: 6019

Total Apathy Demo

It's only 28 years late! Thanks to Showaddywaddy for putting this together and for the great nostalgic intro. :)
total-apathy.msa
by Zippy
Thu Apr 04, 2019 6:12 pm
Forum: Coding
Topic: 'Clean-up' after a warm reset
Replies: 9
Views: 4750

Re: 'Clean-up' after a warm reset

One of the first thing TOS boot code does is to execute the RESET instruction. This instruction does assert the reset signal. At board level it is the same as pressing the hardware button. Yup, but I wasn't sure if the reset button would also reset other hardware chips in addition to the 68000, chi...
by Zippy
Thu Apr 04, 2019 3:31 pm
Forum: Coding
Topic: 'Clean-up' after a warm reset
Replies: 9
Views: 4750

Re: 'Clean-up' after a warm reset

If you clear the 3 "memval" system variables (@ $420.w, $43a.w, $51a.w), or even just the first one at $420.w, then jump to the reset vector in $4.w it should do a BIOS cold boot rather than warm boot. From supervisor mode: clr.l $420.w move.l $4.w,a0 jmp (a0) but without the actual hardware reset l...
by Zippy
Tue Mar 26, 2019 7:43 pm
Forum: Coding
Topic: Aura.PRG source code unprotected needs recompiling
Replies: 3
Views: 4139

Re: Aura.PRG source code unprotected needs recompiling

That will definitely not work as whoever did the protection on this knew what they were doing. There's some bizarre stuff in this like creating the copyright message with a load of random byte moves. It has an encrypted disk protection check, self modifying code + it hides the reference to the prote...
by Zippy
Sun Mar 24, 2019 3:34 pm
Forum: Chat forum [ENG]
Topic: Any new 32" TV that works with an ST via RGB SCART?
Replies: 1
Views: 1597

Re: Any new 32" TV that works with an ST via RGB SCART?

Updating this in case anyone else is looking for a new TV to use with an ST. Turns out the Sony 32WD756BU does work OK with my Mega ST, if I use a SCART cable with the resistors. My old cable that I've had for years didn't have the resistors and worked OK with most other TV's over the years, but not...
by Zippy
Sun Mar 10, 2019 6:57 pm
Forum: Chat forum [ENG]
Topic: Any new 32" TV that works with an ST via RGB SCART?
Replies: 1
Views: 1597

Any new 32" TV that works with an ST via RGB SCART?

I'm currently using my ST with a Toshiba 24" LCD TV with built in DVD player, picture is OK but something isn't quite right with the frame rate as scrolling is a bit jerky. But it's fine for text stuff and the display is stable unlike most other TV's I tried around the time I got this one, with some...
by Zippy
Thu Feb 07, 2019 10:35 am
Forum: Atari Legend Forum
Topic: RIP Steve Bak
Replies: 8
Views: 22193

Re: RIP Steve Bak

Managed to find the article shown , big enough to read :

https://archive.org/details/ST_Amiga_Fo ... B/page/n11
by Zippy
Sat Jan 26, 2019 10:57 am
Forum: Chat forum [ENG]
Topic: Computer crime in Scotland, 1996
Replies: 31
Views: 14264

Re: Computer crime in Scotland, 1996

New upload here :

https://ufile.io/usch7

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