Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)

General software. From trouble with the Banyan Tree to OCP Art Studio, post any general software chat here. Could include game challenges...
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Ast A. Moore
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Re: Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)

Post by Ast A. Moore » Sat May 05, 2018 5:14 pm

Alessandro wrote:
Sat May 05, 2018 4:44 pm
I appreciate the effort but I won't update the list further. The original Dinamic version was not incompatible - it loaded and worked without hassle under 48K BASIC.
Not quite. The music stops playing on post–issue 2 48K machines. Also, on a +2A, it goes straight into the game, bypassing the menu altogether.

You’re probably referring to the version that is sometimes known to as the Small Orange Case version, which was released in 1988, as far as I can tell. Most of the keyboard polling routines are indeed fixed there—I just checked. The cheat, however, was missed and left unpatched, so it won’t work on anything but an Issue 1 or 2 of the Spectrum 48K. ;) My version is the only one (of the Spanish-language releases) that re-enables it.
Alessandro wrote:
Sat May 05, 2018 4:44 pm
I am not going to list games which load and work on the +2A/+3 only under 48K mode because - it's the third time I say that :roll: - it is the proper way to load software released before the launch of the 128K and newer models.
I don’t insist that you include it in your list. I just put it out here because someone else might be interested in a 100%–Spectrum compatible version. That’s the idea behind the fix, after all. ;)
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Re: Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)

Post by Alessandro » Sat May 05, 2018 5:32 pm

All right, I guess there is the need for a separate thread for game bugs correction, then :lol: By the way, I didn't even know that an in-game cheat was available for Camelot Warriors. The Tipshop does not list it - would it be the case to tell Gerard about this?

On the WOS forum there is a discussion thread about bugs in games and relative fixes. I have some of them in my archive - let's see what I can do, then, since I only collected corrections for those titles I selected for my personal collection. Others will have to be retrieved from the thread.
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Re: Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)

Post by Ast A. Moore » Sat May 05, 2018 6:37 pm

Alessandro wrote:
Sat May 05, 2018 5:32 pm
By the way, I didn't even know that an in-game cheat was available for Camelot Warriors.
Well, I only learned about it when I decided to fix the Spanish version (as the English version doesn’t seem to have it). The code is slightly different (the Spanish version doesn’t have the Kempston/keyboard selection in the menu), so when I was plowing through the code looking for anything related to keyboard polling, I noticed a completely new—and unnecessarily convoluted—routine. Since it suffered from the same problem of grabbing an entire byte from the keyboard port instead of testing the lowest five bits only, I rewrote it as well. Bingo—a cheat!

I then fired up the original unpatched version under the 48K machine and enabled the Issue 2 keyboard option in the emulator, and sure enough, it worked. So the cheat was intended to be there in the first place.
Alessandro wrote:
Sat May 05, 2018 5:32 pm
On the WOS forum there is a discussion thread about bugs in games and relative fixes. I have some of them in my archive - let's see what I can do, then, since I only collected corrections for those titles I selected for my personal collection. Others will have to be retrieved from the thread.
Yeah, the versions of Camelot Warriors I worked on were all from my personal archive. That’s why I didn’t know about the almost-fully-patched Small Orange Case version until you said your version worked fine on the +2A. Since mine didn’t, I had to investigate.

Ah, details, details . . . :D
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Every man should plant a tree, build a house, and write a ZX Spectrum game.

Author of A Yankee in Iraq, a 50 fps shoot-’em-up—the first game to utilize the floating bus on the +2A/+3,
and zasm Z80 Assembler syntax highlighter.

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Re: Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)

Post by Pegaz » Sat May 05, 2018 9:49 pm

Ast A. Moore wrote:
Sat May 05, 2018 2:39 pm
Pegaz wrote:
Sat May 05, 2018 2:31 pm
Great job, indeed!
Together with the new Mac loading screen, it's just perfect. :)
http://s000.tinyupload.com/download.php ... 0130585112
I’ve uploaded the actual Dinamic release as well now (see my post above). That loading screen is more fitting there. ;)
You're right, here's the definitive version, the original Dynamic title with your fix and Mac loading screen.
http://s000.tinyupload.com/download.php ... 4954175155
Btw, this is a really good game, I think there's a chance you like it. :)
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Ast A. Moore
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Re: Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)

Post by Ast A. Moore » Sat May 05, 2018 10:24 pm

Pegaz wrote:
Sat May 05, 2018 9:49 pm
Ast A. Moore wrote:
Sat May 05, 2018 2:39 pm
Pegaz wrote:
Sat May 05, 2018 2:31 pm
Great job, indeed!
Together with the new Mac loading screen, it's just perfect. :)
http://s000.tinyupload.com/download.php ... 0130585112
I’ve uploaded the actual Dinamic release as well now (see my post above). That loading screen is more fitting there. ;)
You're right, here's the definitive version, the original Dynamic title with your fix and Mac loading screen.
http://s000.tinyupload.com/download.php ... 4954175155
Btw, this is a really good game, I think there's a chance you like it. :)
Oh, yeah. Now it looks like it belongs. ;)

I’m not much of a gamer, and this kind of a game is not my cup of tea. However, I watched the walkthrough on YouTube, and it does get a better toward the middle. I liked the part where you turn into a frog. That’s kind of cute.
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Every man should plant a tree, build a house, and write a ZX Spectrum game.

Author of A Yankee in Iraq, a 50 fps shoot-’em-up—the first game to utilize the floating bus on the +2A/+3,
and zasm Z80 Assembler syntax highlighter.

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Re: Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)

Post by Ivanzx » Tue May 08, 2018 10:58 pm

I love this thread and I think Alessandro did such a great job for the community by keeping it up ;)

Another case I found: Batty. In the +2A models it only would work in 48K mode. In the other 128K Spectrum models the game works fine but in the +2A/+3 it needs to be loaded in 48k mode.
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Re: Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)

Post by Nomad » Wed May 09, 2018 11:20 am

Figure that a game getting a patch decades after is something to be celebrated - especially as it fixes some major issues. Makes you wonder what other titles in the archive could use similar love.
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Ast A. Moore
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Re: Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)

Post by Ast A. Moore » Wed May 09, 2018 11:52 am

Ivanzx wrote:
Tue May 08, 2018 10:58 pm
Another case I found: Batty. In the +2A models it only would work in 48K mode.
How about now? ;)

Batty (Hit-Pak) (+2A/+3 fix by Ast A. Moore)
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Every man should plant a tree, build a house, and write a ZX Spectrum game.

Author of A Yankee in Iraq, a 50 fps shoot-’em-up—the first game to utilize the floating bus on the +2A/+3,
and zasm Z80 Assembler syntax highlighter.

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Re: Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)

Post by Alessandro » Fri May 11, 2018 11:57 am

Nice job indeed, but I would like to ask everyone taking part in this thread to stick to complete incompatibilities whenever possible, i.e. those cases where there is no way whatsoever to make a software run on a given machine (the +2A/+3 namely), and ask for "partial" fixes in dedicated threads. Thanks!
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Re: Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)

Post by Alessandro » Sat Oct 27, 2018 4:38 pm

New issues found.

Blizzard's Rift: Load the game in USR0 mode to make it work correctly.

Rommel's Revenge: The original Crystal release causes the system to reset at game start. The Zeppelin re-release named Tank Busters is fixed.

Xcel: Both original and Mastertronic releases cannot run, the system resets upon loading. I have fixed files for both versions available (must be loaded under 48 BASIC to work), but I cannot make them available due to Activision's denial of distribution.
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