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Archon for Atari 5200?


Amityville315

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not much of a difference :

 

https://atariage.com/store/index.php?l=product_list&c=22

 

make your own cart ...

 

I thought homebrews are always at least 5 bucks more, due to royalties. I thought 5200 carts are $25 for repros, which is 8 dollars less. No?

 

Maybe the price went up, because it is getting harder to get shells for a decent price.

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I thought homebrews are always at least 5 bucks more, due to royalties. I thought 5200 carts are $25 for repros, which is 8 dollars less. No?

 

Maybe the price went up, because it is getting harder to get shells for a decent price.

 

Yep, price is $30 now.

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  • 2 weeks later...
  • 3 weeks later...

Anyone have issues playing this on the 5200? I can move the cursor, but cant select the chess pieces....

I just tested the game on a 5200. The first player works fine, but the second player cannot select pieces or attack during combat. I tested this on a 4-port system, but I assume a 2-port will behave the same. Also, for the first player, you need to use the right fire buttons on the controller, the left button does nothing.

 

Does anyone know who did this conversion so it can be fixed?

 

Thanks,

 

..Al

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I thought homebrews are always at least 5 bucks more, due to royalties. I thought 5200 carts are $25 for repros, which is 8 dollars less. No?

 

Maybe the price went up, because it is getting harder to get shells for a decent price.

One-off carts are more time consuming for me to make, as I have to setup the label to print (which sometimes is non-trivial depending on what people send me), test the game first to make sure it actually runs on real hardware, and so forth. Now, for these 5200 conversions, I have been making full label sheets and am building up a nice library of them. However, 5200 carts are a huge pain in the neck to prepare compared to 2600 and 7800 carts. I do have some new 5200 shells I am currently using, but I will be out of them soon. In fact, I will be releasing some new 5200 games at the Portland Retro Gaming Expo, so I have to prepare a whole slew of 5200 cart shells. Very labor intensive if you want to do it correctly (which includes scrubbing the carts in the sink with a nylon brush to make sure those "notches" are free from dirt, and of course the carts need to be completely disassembled first to remove the spring, screw and board).

 

..Al

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I don't know who ported Archon but if you break where it reads TRIG1 it just throws it away:

AEDC: AD 10 C0 LDA TRIG0   <--- reads trigger port 1
AEDF: 8D 84 02 STA $0284   <--- stores it in STRIG0
AEE2: 8D 7C 02 STA $027C   <--- stores it in PTRIG0
AEE5: AD 11 C0 LDA TRIG1   <--- reads trigger port 2
AEE8: A5 0A    LDA PCOLR2  <--- reads something else
AEEA: F0 15    BEQ $AF01

I did a quick hack, replacing the LDA TRIG1 with a JSR to a routine to read it and store it in STRIG1/PTRIG1 and it seems to be ok.

archon_hack.bin

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