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Author Topic: Galaxian≥ [Dragoon] Emulation part #1 : the boards  (Read 33409 times)
DarthNuno
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« Reply #15 on: October 28, 2009, 06:23:43 PM »

Oh dear...  Shocked  arrow



The 2 68020 CPU boards has been able to pass many self test items(indicated by LEDs), and the master CPU uploads a lot of data to the slave, if given some patch/hack.

Among these data, there are:
DSP Code
Mathmatic Tables
2d sprite palette
Some test code
...
...

From the sprite tiles, the 2d palette seems extracted correctly.
- Naibo

I'm in love  Kiss Kiss Kiss

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DarthNuno
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« Reply #16 on: October 28, 2009, 10:18:13 PM »

DSP board details now available  Cool
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DarthNuno
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« Reply #17 on: October 29, 2009, 05:14:05 PM »

RSO board details now available  Cool
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Zeether
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« Reply #18 on: October 30, 2009, 02:34:50 AM »

Yay, it's on the fast track to emulation!

Does MAME handle most Laserdisc games well? I know 3D games are pretty demanding when it comes to CPU...
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DarthNuno
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« Reply #19 on: October 31, 2009, 03:43:37 PM »

Does MAME handle most Laserdisc games well? I know 3D games are pretty demanding when it comes to CPU...

Yes, most of them are working good, but require powerful CPU.

I've just put the ultra high-def. pictures of a major board : THE BACKPLANE

This one was extremely difficult to scan because it's a bigger board than the other ones PLUS there is a big level difference between the components... so not easy to lay down on the scanner and keep homogeneous pictures  Twisted. I had to scan FOUR areas... and reassemble it... no an easy task... but ... hey ... it's done!  Kiss Crazy job, let me tell you...  Tongue Twisted

This board is very interesting because if you look closer, you will see this one is able to manage itself FOUR PGN, DSP and OBJ boards! It can output up to FOUR different display devices (in that case, up to FOUR projectors).
The funny thing is a GT-6 (What we use to call 'Galaxian Theater') has TWO backplane!  arrow



...so this 'piece' of hardware would be able to use up to 8 projectors! It's now clear that this backplane has been also used in the GM-16 model (Galaxian3 for 16 players), and maybe in the famous GH-28 (Galaxian3 for... 28 players!!! see here).

 Space Ace
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nuu
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« Reply #20 on: November 01, 2009, 07:41:45 PM »

Cool! Is it possible to extract the sound effects from the sound boards?
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DarthNuno
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« Reply #21 on: November 02, 2009, 06:23:50 PM »

Cool! Is it possible to extract the sound effects from the sound boards?

Cannot reply to this question yet, but I don't think there will be a lot of sounds... except fire/explosion sounds, menu sounds, insert coins sound... most (all?) of the backgrounds musics and voices seems to be on the laser disc footage... but who knows... let's wait some progress on this  Wink
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DarthNuno
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« Reply #22 on: November 02, 2009, 06:40:58 PM »

The famous V-MIX PCB details, now available  Kiss
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DarthNuno
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« Reply #23 on: November 06, 2009, 06:47:05 PM »

The C-RAM PCB details are now available   Cool
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DarthNuno
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« Reply #24 on: November 08, 2009, 11:17:21 AM »

...and the PGN PCB details are now available   Cool

Guess what?  Roll Eyes Yes! THIS IS IT! Details for all boards are now available  :-*I hope this will help the dev.  Cool  Feel free to ask more details I you need it of course  Kiss 
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Naibo
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« Reply #25 on: November 13, 2009, 06:06:09 PM »

What are the Lables/Models of these 2 ICs, on the C-RAM Board?
(The red circle on the right indicate some photoshop mis-aligns).


* CRAM.JPG (127.05 KB, 1088x771 - viewed 707 times.)
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DarthNuno
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« Reply #26 on: November 13, 2009, 06:52:21 PM »

What are the Lables/Models of these 2 ICs, on the C-RAM Board?
(The red circle on the right indicate some photoshop mis-aligns).

On the first picture, here's the ref for the IC located at 2J,2F, 7J, 7F on C-RAM PCB :

232782JAS
SN74S1057SC


What is the board on the second picture?
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Naibo
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« Reply #27 on: November 15, 2009, 10:27:28 PM »

What are the Lables/Models of these 2 ICs, on the C-RAM Board?
(The red circle on the right indicate some photoshop mis-aligns).

On the first picture, here's the ref for the IC located at 2J,2F, 7J, 7F on C-RAM PCB :

232782JAS
SN74S1057SC


What is the board on the second picture?

On the 2nd picture it's the CPU board. However, some other boards also have similar mis-align, on their slope-border.

Some tips I summerized for joining scaned pictures:
1. Make the join-border vertical or horizontal, instead of slope;
2. Noticed that most circuit on the CPU board's component-side are vertical, so scan it upper-and-lower, instead of left-and-right may avoid most mis-alignment.

I've downloaded your newly scaned CPU pitctures. They're pretty good. So you needn't re-scan them.
Have a nice trip!
 Cool
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DarthNuno
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« Reply #28 on: November 23, 2009, 06:04:53 PM »

OK Naibo  Kiss Let me know if you need more details ... now I'll set up a computer in order to digitalize the LD footage in a 'mame accurate' way  Cool
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ANY
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« Reply #29 on: November 24, 2009, 01:53:23 AM »

Tell me HOW to do it!!!!
I ask to some people and NEVER get a decent reply if any...

Great work Darth!!!
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here is 10 kind of people:
-who can read binary
-all the rest
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