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Defend the Cities II

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Hi

 

Have seen a mini-memory game called "Defend the Cities II" advertised/reviewed in the 99ner magazine. Also the author of the game (Jerry Spacek) wrote an article in the same magazine explaining the process he took in converting the original game from XB to assembly & the mini-memory module.

 

Does anyone have this game? It seems to have completely disappeared! It would be shame, as there were stuff all mini-memory games developed.

 

cheers

Daryn

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I used to have a disk of Mini-Memory games a long time ago--and I think that was on it. I'll look around to see if I still have it--but the title definitely pointed my mind to that old MM disk I had, so I might get lucky. Mini-Memory software was much more widely used/available in Europe back then, so there is a good chance it survived there (which is where I got my MM disk too).

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That would be great Ksarul - hopefully you have it lying around somewhere!

 

cheers

Daryn

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Can the mini memory work for saving games? Do you simply replace dsk1 with minimem.whatever? Without any programming knowledge or intended application, would anyone recommend buying one of these? There is one on ebay for $40 I think.

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I saved a few small BASIC programs to mine back when I was on the road and writing little things in console BASIC. Before I found Classic99, I would take my beat up TI console and a MiniMem cart around with me.

 

Then I got a tape deck and started carrying that. Then I got a laptop and got Classic99 and my suitcase got lighter. :)

 

So yes, but only smallish programs.

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It'll save, but it's a battery backed RAM, I'd be wary how well it works today and not store any permanent data on it. Also, while it's formatted for use as a storage device, it's not available for use for loading and running assembly programs (it can still load to the 32k). Finally, it doesn't have the option of loading PROGRAM image files, although you could load a loader for that. ;)

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Then I got a tape deck and started carrying that. Then I got a laptop and got Classic99 and my suitcase got lighter. :)

 

I am trying to get Classic99 and MESS to run better on my 8" WinBook :)

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Hi,

 

I found an old screenshot in the GameBase, so it should be there in. But many ZIPs with DSKs inside, hard to find at the moment.

Especially if the DSK is not named like "Defend Cities", as it is just 1 program on a DSK with many others, maybe.

But I will go on later.

 

schmitzi

post-41141-0-56133900-1434459195_thumb.png

post-41141-0-89534800-1434459259_thumb.png

Edited by schmitzi

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Hi,

 

I found an old screenshot in the GameBase, so it should be there in. But many ZIPs with DSKs inside, hard to find at the moment.

Especially if the DSK is not named like "Defend Cities", as it is just 1 program on a DSK with many others, maybe.

But I will go on later.

 

schmitzi

 

Oh nice! Even good seeing some screenshots.

 

Sounds like this game (or at least the mini memory assembly language version) was the first commercial mini memory game (given 'Entrapment' took a while to see the light of day).

 

Its a pity more wasn't done with the mini memory. I guess the timing was kinda bad for it (like most things TI did)

 

cheers

Daryn

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Will download the Gamebase & try & find this game. Must be somewhere!

 

cheers

Daryn

 

Taken from gamebase ... ;)

 

 

 

Cartridge: Editor/Assembler, Load and run, File name: DSK1.DEFCITIES, Program name: DC

 

defcities.gif

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Oh that is awesome!! Thanks sometimes99er & sparkdrummer!!! :)

 

This is obviously the EA version, but still good to see the game in action!

 

cheers

Daryn

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Its actually a pretty slick game! Really enjoy it!

 

Its a bit like missile command & asteroids combined

 

Hopefully someone has the Mini Memory version archived somewhere. With it being assembly it is supposed to be way quicker and smoother.

 

cheers

Daryn

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Hi

with EA3 I cannot load # I/O error 7 # any idea ?

thanks

 

With JS99'er, I can load the sssd.dsk using EA5 the sparkdrummer attached. Try that

 

cheers

Daryn

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Hi

with EA3 I cannot load # I/O error 7 # any idea ?

thanks

 

Are you running Classic99 ? Did you set the correct directory ? And did you use the Image (DSK) option ?

 

;)

Edited by sometimes99er

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Hi

 

Still on the lookout for the mini memory version of this game. Supposed to be way better than the extended basic version.

 

cheers

Daryn

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Taken from gamebase ... ;)

 

attachicon.gifdefend.dsk

 

Cartridge: Editor/Assembler, Load and run, File name: DSK1.DEFCITIES, Program name: DC

 

defcities.gif

RXB 2015E do the same thing and it shows all the names to start the EA 3 program and use arrow keys to find the name and Enter to run program.

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Taken from gamebase ... ;)

 

attachicon.gifdefend.dsk

 

Cartridge: Editor/Assembler, Load and run, File name: DSK1.DEFCITIES, Program name: DC

 

defcities.gif

 

Hmmm this is actually really interesting...

 

I know for a fact that there are 2 versions of this game

  • Defend the Cities - Extended Basic version
  • Defend the Cities II - Mini Memory/Assembly version

For the attached disk above, in js99'er I was able to turn off the 32K expansion, load up the Mini memory module and "Load and Run" using DSK1.DEFCITIES and DC.

 

I could also see opcodes in the 7d00 range that the Mini Memory (I believe) uses.

 

Does this mean that this version attached to the DSK could in fact the Defend the Cities II?

 

cheers

Daryn

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Ok think I have the answer. It definitely is the mini memory version.

 

I actually used the mini memory TI-BASIC disassembler and put in a memory location near the end of the 7000-7FFF span of the mini-memory RAM.

 

So chose looking at TEXT statements between 7EEE-7FFF. See attached

 

post-40572-0-08652700-1504602057_thumb.png

 

Thats actually really cool!

 

cheers

Daryn

 

 

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