svenski Posted March 24, 2012 Share Posted March 24, 2012 Bob, add me to cart list for 1 x PAL version please Quote Link to comment Share on other sites More sharing options...
GroovyBee Posted March 24, 2012 Share Posted March 24, 2012 Just took a look at the schematic and it doesn't use R/W#. If you tie pin 22 (OE#) to GND on the EPROM its outputs will be enabled all the time (even if you are accessing internal 4K RAM!). Quote Link to comment Share on other sites More sharing options...
PacManPlus Posted March 24, 2012 Author Share Posted March 24, 2012 Hmm.... I don't get it - I've made many carts this way, and they all seem to work fine - CrazyBrix, Meteor Shower, Space Invaders, and some of the Ms. Pac-Man Hacks (i.e. Crazy Otto) are all 16K and they've all been put on cart using this method. 1 Quote Link to comment Share on other sites More sharing options...
+remowilliams Posted March 24, 2012 Share Posted March 24, 2012 One more for the cart list, thanks! Quote Link to comment Share on other sites More sharing options...
GroovyBee Posted March 24, 2012 Share Posted March 24, 2012 Hmm.... I don't get it - I've made many carts this way, and they all seem to work fine - CrazyBrix, Meteor Shower, Space Invaders, and some of the Ms. Pac-Man Hacks (i.e. Crazy Otto) are all 16K and they've all been put on cart using this method. I'd recommend the use of a NAND gate for correct address decoding. Before you fit the EPROM connect wires to A14 and OE# on the PCB (after removing the mask ROM as per normal). Solder the other ends of the wires to the two inputs on a NAND gate (it'll need power too). Bend out the legs for OE# and A14 on the EPROM. Connect the o/p of the NAND gate to OE# (pin 22) on the EPROM and connect the EPROMs A14 to GND. When connected like that any address between 0xC000 and 0xFFFF will enable the EPROM. However, you'll still get bus contention if you write to that address range. If you are using a 32K EPROM you'll need to make sure that your 16K image is in the lower half of the device. Quote Link to comment Share on other sites More sharing options...
+Trebor Posted March 24, 2012 Share Posted March 24, 2012 As far as the 'off the screen' enemies never appearing on screen, that had happened to me, and I believe I fixed it. Also, I compromised with your 'control' suggestion in an above post. I made 'Config 1' and 'Config 2', but not 'Config 3'. I don't think that is a likely scenario. The game now auto-detects if a 2600 or a 7800 joystick is plugged in, just like Scramble. Button 2 on the 7800 joystick is thrust. Very cool. Thank you. Quote Link to comment Share on other sites More sharing options...
+Trebor Posted March 25, 2012 Share Posted March 25, 2012 (edited) I also just filed a bug report with Bugzilla - The 2 independent button feature is not recognized for RipOff or Scramble. Works fine under ProSystem and the real hardware. Unfortunately, since the server the MESS homepage (including Bugzilla) was hosted on crashed, it appears much was lost, including Bugzilla. I'll post the issue here as well in case any devs should take note: MESS does not correctly identify 2 independent buttons for the following games: Scramble - 1st/left button = missles & 2nd/right button = bombs RipOff - 1st/left button = fire & 2nd/right button = thrust The behavior for both titles instead translates as if only one button controller is present resulting in the following: Scramble - 1st/left button = missiles and bombs & 2nd/right button = missiles and bombs RipOff - 1st/left button = fire & 2nd/right button = fire [*Joystick Up now serves as thrust.*] Both games behave correctly under the ProSystem emulator and on the real hardware. For some reason, under MESS, the behavior is as if a one independent button was only present. Back to your regularly scheduled program Edited March 25, 2012 by Trebor Quote Link to comment Share on other sites More sharing options...
PacManPlus Posted March 25, 2012 Author Share Posted March 25, 2012 Thanks Actually if they want an 'original release' that shows this issue, Asteroids also does this. MESS uses 'down' as hyperspace whereas if you had a two-button joystick, hyperspace is mapped to the second button. Quote Link to comment Share on other sites More sharing options...
+Trebor Posted March 25, 2012 Share Posted March 25, 2012 Thanks Actually if they want an 'original release' that shows this issue, Asteroids also does this. MESS uses 'down' as hyperspace whereas if you had a two-button joystick, hyperspace is mapped to the second button. Thanks for the info, Bob. I posted to the MESS message board as well. I'll add the above to it. Quote Link to comment Share on other sites More sharing options...
GrizzLee Posted March 25, 2012 Share Posted March 25, 2012 Add me to the cart list! Mitch What Mitch said :-) -GrizzLee Quote Link to comment Share on other sites More sharing options...
jeffgamer Posted March 25, 2012 Share Posted March 25, 2012 I'm down for an NTSC cart! :-) Quote Link to comment Share on other sites More sharing options...
+Trebor Posted March 25, 2012 Share Posted March 25, 2012 Just a quick update, the button problem in MESS should hopefully and thankfully be fixed in the next release: "Huygens: "I think I fixed it, patch submitted soon. Pin 6 of the controller port is the input for reading the button on a single button joystick. For two button controllers it's an output and is held high by the RIOT chip. The emulation was missing this."" http://forums.bannister.org//ubbthreads.php?ubb=showflat&Number=78218Post78218 Quote Link to comment Share on other sites More sharing options...
eddhead Posted March 25, 2012 Share Posted March 25, 2012 Do want. I can has cartridge? Sorry... guess I'm running out of ways to get my name on your cart lists! (Excellent work, by the way!!) Quote Link to comment Share on other sites More sharing options...
+Mitch Posted March 25, 2012 Share Posted March 25, 2012 Hmm.... I don't get it - I've made many carts this way, and they all seem to work fine - CrazyBrix, Meteor Shower, Space Invaders, and some of the Ms. Pac-Man Hacks (i.e. Crazy Otto) are all 16K and they've all been put on cart using this method. I have some Atari EPROM boards that do that. I think I may be the one who told you about it. I don't recall ever having a problem with it either. Mitch 1 Quote Link to comment Share on other sites More sharing options...
Shawn Posted March 25, 2012 Share Posted March 25, 2012 Hmm.... I don't get it - I've made many carts this way, and they all seem to work fine - CrazyBrix, Meteor Shower, Space Invaders, and some of the Ms. Pac-Man Hacks (i.e. Crazy Otto) are all 16K and they've all been put on cart using this method. I have some Atari EPROM boards that do that. I think I may be the one who told you about it. I don't recall ever having a problem with it either. Mitch I've made a ton of carts with this method also and it works without ANY issue. I think all 3 of us have used this method for how many years now?? Quote Link to comment Share on other sites More sharing options...
keitaro Posted March 25, 2012 Share Posted March 25, 2012 Another great work, another great game. Like in Scramble, details like demo, fonts, etc gives a more authentic arcade feel. If you will do a preorder list, please count me for a PAL cart. Regards, Quote Link to comment Share on other sites More sharing options...
Shawn Posted March 26, 2012 Share Posted March 26, 2012 I'd recommend the use of a NAND gate for correct address decoding. Before you fit the EPROM connect wires to A14 and OE# on the PCB (after removing the mask ROM as per normal). Solder the other ends of the wires to the two inputs on a NAND gate (it'll need power too). Bend out the legs for OE# and A14 on the EPROM. Connect the o/p of the NAND gate to OE# (pin 22) on the EPROM and connect the EPROMs A14 to GND. When connected like that any address between 0xC000 and 0xFFFF will enable the EPROM. However, you'll still get bus contention if you write to that address range. If you are using a 32K EPROM you'll need to make sure that your 16K image is in the lower half of the device. I'm amazed you have time to be working on finishing the XM that is so far behind and talk shit about other people's work methods who actually finish projects. You sir are a multitasking genius. Quote Link to comment Share on other sites More sharing options...
UberArcade Posted March 26, 2012 Share Posted March 26, 2012 I never played Rip Off in the arcades. I am looking forward to trying this version out. Put me on the cart list please! Quote Link to comment Share on other sites More sharing options...
AtariBrian Posted March 26, 2012 Share Posted March 26, 2012 Bob, you are the man !!! I was thinking today, what about a new original but similiar game based on Moon Patrol, heck throw in a great tune and you could have a saweet masterpiece Quote Link to comment Share on other sites More sharing options...
gambler172 Posted March 26, 2012 Share Posted March 26, 2012 I do not know, why to discuss about cartridge making. I own all games,made by Bob and all work very well. greetings Walter Quote Link to comment Share on other sites More sharing options...
HammR25 Posted March 27, 2012 Share Posted March 27, 2012 If one of the enemy tanks is escaping with a fuel canister and I kill it right at my spawn point then all I have to do is hover over it and I can go several levels without the enemy tanks being able to take that fuel canister simply because my tank has turned into a respawning bomb. After awhile though they stop coming on screen unless I move away from the fuel canister. Guess they figured out my suicide bomb trap. Quote Link to comment Share on other sites More sharing options...
PacManPlus Posted March 27, 2012 Author Share Posted March 27, 2012 (edited) Good Find! I've removed the exit points (for the enemies) closest to player 1 and player 2, so it should be *much* more rarer that this happens. This is why I don't make carts right away. I learned from the Moon Cresta bug incident. Bob Edited for clarity RipOff.A78 RipOff.bin RipOffP.A78 RipOffP.bin Edited March 27, 2012 by PacManPlus 1 Quote Link to comment Share on other sites More sharing options...
phattyboombatty Posted March 27, 2012 Share Posted March 27, 2012 Put me down for one as well, Bob! Always love your tremendous work! Quote Link to comment Share on other sites More sharing options...
gambler172 Posted March 27, 2012 Share Posted March 27, 2012 Hi Bob works great,but i prefer the 1 button version,which plays better;my opinion greetings Waltet Quote Link to comment Share on other sites More sharing options...
+Trebor Posted March 27, 2012 Share Posted March 27, 2012 Awesome! Thanks for the update release, Bob. And as of 0.145u5 of MESS - just released recently, RipOff, Scramble, and Asteroids functions as they should with two independent buttons. Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.