Mrhide
Legendary
DARKSOFT New Namco System 2 Multi
- Thread starter Darksoft
- Start date
I didn’t install the multi yet
Some black squares
idk if any romhackers are following along but I figured I would put my money where my mouth was. If it was indeed the world where I could adjust a few values and it would all work 100%, well then I'd certainly have the time to do that, right?
0246CA starts the routine that writes data values into the video ram.
0246CA: lea $404000.l, A0 # putting the address 404000 into address register 0
0246E4: lea ($184,A0), A0 # shortly thereafter setting a primary offset of 404184 (a useful watchpoint), otherwise known as the upper right corner of the dialogue window
the game proceeds to write one character to video ram every time it reaches 024720 (a handy break-point if you need it)
024720: move.w D2, (A0,D0.w) # moving the word at register d2 (the character it wants to print) to the address space home + offset at D0.
D0 increments a little each loop, to write the next letter.
When it needs a new line, it adds another offset of #$100 to bump D0 left to a new row.
024740: addi.w #$100, D0
and continues writing new characters using the updated D0 offset...
024720: move.w D2, (A0,D0.w)
So this whole routine could be adjusted. You can get the first row to start on the right hand side pretty easily,
0246E4: lea ($484,A0), A0 # I just added 400
But the next trick, having the rows subtract by 100 each time a new row is needed, fails.
024740: subi.w #$100, D0 # for example, subtracting 100
this fails because D0 starts at 0000, so after the first loop subtraction will roll back to 0F00, and that will still be added to the address A0 at 024720.
.... fun eh?
(and this is just this particular text draw call, I do hope it's re-used a lot of places but I really don't know).
So anyway if I were to pick this back up at some point, I think the course of action would be to find some open work ram, and adjust code in two places:
0246E4: instead of setting an offset of $184, I'd probably set up a small table somewhere with a set of hard coded offsets starting at 404484, and then
024740: I'd use this spot to jump out and adjust whatever pointer I need so that 0246E4 picks the next successive offset location, 404384, 404284, 404184
... then find the dialogue clearing routine so I can use it to also reset this little subroutine for the next set of words.
(And hope the game never needs more than 4 rows for this version of dialogue
)RepairGuy95
Champion
Just to follow up on this.
I was able to fix my donor by swapping the cpu board with a cheap mint final lap.
So as a data point, if there's bad ram on your cpu board, or very bodged traces & caps, that can cause random crashing with the multi.
I have yet to recap the final lap which likely needs it and it works fine.
I was able to fix my donor by swapping the cpu board with a cheap mint final lap.
So as a data point, if there's bad ram on your cpu board, or very bodged traces & caps, that can cause random crashing with the multi.
I have yet to recap the final lap which likely needs it and it works fine.
ALFARABI
Student
- Joined
- Jul 21, 2015
- Messages
- 31
- Reaction score
- 25
Just receive mine today and install it, it seems to work fine with a Cosmo Gang donor...
I have not try everythings, but I managed to play Phelios, Ordyne, Finest Hour and Marvel Land a cup of minutes.
I dont know why but a cup of games reboot or dont boot at all only freez on the black screen whith the first instructions...
Anyway will try later, but I really enjoy this multi, I already own 3 Namco System 2 and I can now apreciate the others games, and it 's very easy to switch games.
Anyone knows If all the games have a stereo mode ?
On the main board There 's a pin to switch between mono and stereo.
I have a Namco Consolette cabinet, and there 's a wire for stereo to plug on the Namco System 2,but I have never try it, too afraid to make a mistake...
Is there someone who already try a Namco System 2 board into a Namco Consolette with the special stereo wire ?
Thx a lot and enjoy
I have not try everythings, but I managed to play Phelios, Ordyne, Finest Hour and Marvel Land a cup of minutes.
I dont know why but a cup of games reboot or dont boot at all only freez on the black screen whith the first instructions...
Anyway will try later, but I really enjoy this multi, I already own 3 Namco System 2 and I can now apreciate the others games, and it 's very easy to switch games.
Anyone knows If all the games have a stereo mode ?
On the main board There 's a pin to switch between mono and stereo.
I have a Namco Consolette cabinet, and there 's a wire for stereo to plug on the Namco System 2,but I have never try it, too afraid to make a mistake...
Is there someone who already try a Namco System 2 board into a Namco Consolette with the special stereo wire ?
Thx a lot and enjoy
Attachments
Robertguy09
Grand Master
I got my multi all setup without any major issues! Time to play!!
After seeing @Jinyong Kim with a shorted flash module, I decided to check all of mine before flashing and also found a short. I was able to easily fix it, but it is something to keep an eye out for.
If anyone is interested, I'll be designing a 3d printable case for this multi so keep an eye out on this thread
It'll probably be a couple of weeks till I get to it though.
After seeing @Jinyong Kim with a shorted flash module, I decided to check all of mine before flashing and also found a short. I was able to easily fix it, but it is something to keep an eye out for.
If anyone is interested, I'll be designing a 3d printable case for this multi so keep an eye out on this thread
It'll probably be a couple of weeks till I get to it though.
I plan to model and 3d print cases for some of my PCBs.
If you want me to print you a case, PM me for cost.
Here are the ones I have complete so far!
...
If you want me to print you a case, PM me for cost.
Here are the ones I have complete so far!
Printables Link | Images |
| |
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Robertguy09
Grand Master
Does anyone have the list of games in numbered order for the multipack?
RepairGuy95
Champion
Expansion connector is where stereo goes.Just receive mine today and install it, it seems to work fine with a Cosmo Gang donor...
I have not try everythings, but I managed to play Phelios, Ordyne, Finest Hour and Marvel Land a cup of minutes.
I dont know why but a cup of games reboot or dont boot at all only freez on the black screen whith the first instructions...
Anyway will try later, but I really enjoy this multi, I already own 3 Namco System 2 and I can now apreciate the others games, and it 's very easy to switch games.
Anyone knows If all the games have a stereo mode ?
On the main board There 's a pin to switch between mono and stereo.
I have a Namco Consolette cabinet, and there 's a wire for stereo to plug on the Namco System 2,but I have never try it, too afraid to make a mistake...
Is there someone who already try a Namco System 2 board into a Namco Consolette with the special stereo wire ?
Thx a lot and enjoy
If you can solder a headphone jack onto a larger connector you are set.
Also your socketed ram is bad.
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RepairGuy95
Champion
I got my multi all setup without any major issues! Time to play!!
After seeing @Jinyong Kim with a shorted flash module, I decided to check all of mine before flashing and also found a short. I was able to easily fix it, but it is something to keep an eye out for.
If anyone is interested, I'll be designing a 3d printable case for this multi so keep an eye out on this thread
It'll probably be a couple of weeks till I get to it though.
I plan to model and 3d print cases for some of my PCBs.
If you want me to print you a case, PM me for cost.
Here are the ones I have complete so far!
...
100% this guy makes great cases.
Recommend.
ShootTheCore
Legendary
Just receive mine today and install it, it seems to work fine with a Cosmo Gang donor...
I have not try everythings, but I managed to play Phelios, Ordyne, Finest Hour and Marvel Land a cup of minutes.
I dont know why but a cup of games reboot or dont boot at all only freez on the black screen whith the first instructions...
Anyway will try later, but I really enjoy this multi, I already own 3 Namco System 2 and I can now apreciate the others games, and it 's very easy to switch games.
Anyone knows If all the games have a stereo mode ?
On the main board There 's a pin to switch between mono and stereo.
I have a Namco Consolette cabinet, and there 's a wire for stereo to plug on the Namco System 2,but I have never try it, too afraid to make a mistake...
Is there someone who already try a Namco System 2 board into a Namco Consolette with the special stereo wire ?
Thx a lot and enjoy
Check the voltage level for the +5V line at the JAMMA connector. System 2 is a power hungry board and if it isn't getting a steady +5V then that could be the cause of your crashes.
ShootTheCore
Legendary
0 - Assault (Rev 2)
1 - Assault Plus (Japan)
2 - Burning Force (Japan, New Version, Rev C)
3 - Cosmo Gang The Video (US)
4 - Dirt Fox (Japan) [unplayable without Paddle & Pedal controls]
5 - Dragon Saber (World)
6 - Dragon Saber (Japan - Rev B)
7 - Finest Hour (Japan)
8 - Marvel Land (Japan)
9 - Marvel Land (US Prototype) [bad sound]
A - Mirai Ninja (Japan - set 1)
B - Ordyne (World)
C - Phelios (World)
D - Rolling Thunder 2 (World)
E - Rolling Thunder 2 (Japan)
F - Valkyrie No Densetsu (English Fan Translation)
Also, my Rollup Builder tool is very, very close to release - we're just completing some testing on the baseball games. This tool will let you roll your own custom Rollup Pack for your System 2 Multi.
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mathewbeall
Enlightened
I got this hooked up today, after it sitting on my bench for 2 weeks... . SUPER easy install - Thanks for the great documentation @Darksoft! I fired up every game, and they all booted and looked good, and had sound - I will get some more serious gaming in this weekend, but super happy with this multi!
Did I see mention or hear a rumor of an OLED selector coming out?
Matt
. SUPER easy install - Thanks for the great documentation @Darksoft! I fired up every game, and they all booted and looked good, and had sound - I will get some more serious gaming in this weekend, but super happy with this multi!Did I see mention or hear a rumor of an OLED selector coming out?
Matt
ALFARABI
Student
- Joined
- Jul 21, 2015
- Messages
- 31
- Reaction score
- 25
I can tell, precedly this cab have the System 18 multi plugged on it, and I have to increase the voltage, + 0,2 V.
My voltage is steady, the power supply is not old, I changed the original one for a modern brand new Sanwa, the famous one.
Well, i tried Yesterday night another games and it 's works fine, I have to try RT2 and Cosmo Gang.
One another thing, I have a little white Line on the sprite of Valkyrie, on top of the left, a kind of glitch.
More I push action button and more ut 's visible.
Does anyone have this glitch too ?
You can sée it a little bit on the pic attached...
Thx guys
Attachments
I can change the games and these sound works nicely
Did the original game work properly before installing the multi?
Are you sure that all pins of the multi go fully inside and make good contact?
And last check, are you sure that you wrote all modules correctly and they are in the right place?
Are you sure that all pins of the multi go fully inside and make good contact?
And last check, are you sure that you wrote all modules correctly and they are in the right place?
The original game, didn’t worked properly as i showed upper , some squared glitched appeared. I thought it was minor but apparently its serious. I will first rechecked everything again. Reseat chips etc
mathewbeall
Enlightened
As a general rule - the donor should be 100% working before you drop a multi on. It stresses the board a little over the “stock” so you need perfectly working. Hopefully it’s just an issue that reseating a few times will resolve.
Hopefully it will be the ram if it's not that, then most probably one of the 2 SMD custom video chips has gone bad and that is bad news.