 No.06928
Tafoid Administrator
Dec 17, 2010, 21:17
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I'll look at it.. |
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No.06929
Tafoid Administrator
Dec 18, 2010, 02:35
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I went through and tested buttons and took out / reassigned the appropriate ones. Made notes in the driver about the second button in case other discoveries can be made. This is a prototype - so it's not easy to determine if the second button's function was even finished. |
 No.06932
sxevious Tester
Dec 18, 2010, 19:42
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Maze Invaders was field tested so the second button almost certainly has a function. A hi-res picture of the control panel would be extremely helpful as the buttons are labeled (the first is fire, the second is blurry in the lo-res image, it might say reverse ?). The instructions would be helpful for gameplay as well: Sometimes the bonus sound from Centipede is heard but I have no idea why (Maze Invaders has its own bonus sound). Sometimes a blue door appears which awards bonus points if used but it isn't clear what triggers it. Also it seems that getting the same fruits in sequence gives more points. |
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No.06933
sxevious Tester
Dec 18, 2010, 19:57
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Found a high-res image: http://farm5.static.flickr.com/4149/4841559950_187583450a_o.jpg Maze Invaders buttons are Fire and Reverse. Perhaps the reverse button reverses the direction of the enemies when used ? Or maybe the direction of the moving walls ? Unfortunately even this image is not quite clear enough to fully make out the instructions. |
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No.06935
sxevious Tester
Dec 18, 2010, 20:52
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Based upon a quick disassembly of the ROMs try moving button 2 to IN2 bit 0 (port bit 0x01) for player 1 and IN3 bit 0 (port bit 0x01) for player 2. The IN2 and IN3 definitions for Maze Invaders should be this: PORT_START("IN2") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_TILT) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN) // ?? PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_START("IN3") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON2) PORT_PLAYER(2) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START2 ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN) // ?? PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN) PORT_SERVICE( 0x80, IP_ACTIVE_LOW ) Note bit 5 in both IN2 and IN3 are checked, these may be coin ports. At least one coin port (left) is missing. COIN1 definition is the right coin port. |
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No.06937
Tafoid Administrator
Dec 19, 2010, 00:52
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There is actually 2 buttons used in the game, 3 coin slots. Check u3 when released. There is no port_player(2) nor a cocktail option to enable such a beast. |
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No.06938
sxevious Tester
Dec 19, 2010, 01:07
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Here is a bit of disassembly which suggests there is: 5B37 LDA 2010 5B3A BIT C5 5B3C BPL 5B41 5B3E LDA 2011 5B41 AND #05 5B43 CMP #05 There are several places in the code which use the value at C5 to determine whether to read 2010 (IN2) or 2011 (IN3). This is how I figured that button 2 should be bit 0 (01) since button 1 is bit 2 (04) and the code is masking with 05. Here is the code where C5 is set (from 2011 bit 5): 5412 LDA 2011 5415 AND #20 5417 EOR #20 5419 ASL A 541A STA C5 541C STA 2506 541F RTS So perhaps IN3 bit 5 (20) is the cabinet type ? |
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No.06939
Tafoid Administrator
Dec 19, 2010, 01:13
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It's possible. In my tests it activated some values in test mode (as if to suggest a second analog range). This is already commented in the driver update I did. |
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No.06940
sxevious Tester
Dec 19, 2010, 01:17
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I forgot to mention that in Millipede, 2506 is the flip screen control. Maze Invaders is largely based upon Millipede so this should be added to its memory map then the player 2 controls should work: AM_RANGE(0x2506, 0x2506) AM_WRITE(centiped_flip_screen_w) |
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No.06942
sxevious Tester
Dec 19, 2010, 01:33
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One more thing, you also need to add definitions for STICK1 and STICK3 (player 2 analog stick Y and X) which are currently unused. What does button 2 do in the game anyway ? |
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No.06944
sxevious Tester
Dec 19, 2010, 02:20
edited on: Dec 19, 2010, 02:21
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Compared Maze Invaders with Millipede and not surprisingly IN3 bit 5 handling is the same in both so make that the cabinet type for Maze Invaders (copy from Millipede definition) and the player 2 controls should work. I think these definitions should work: PORT_START("IN2") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_TILT) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN ) // another coin input ? PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN1) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_START("IN3") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START2 ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_DIPNAME(0x20, 0x20, DEF_STR( Cabinet ) ) PORT_DIPSETTING( 0x20, DEF_STR( Upright ) ) PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ) ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_SERVICE( 0x80, IP_ACTIVE_LOW ) /* IN6-9 fake to control player joysticks */ PORT_START("STICK0") PORT_BIT( 0xff, 0x7f, IPT_AD_STICK_Y ) PORT_MINMAX(0x40, 0xbf) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_REVERSE PORT_PLAYER(1) PORT_START("STICK1") PORT_BIT( 0xff, 0x7f, IPT_AD_STICK_Y ) PORT_MINMAX(0x40, 0xbf) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(2) PORT_START("STICK2") PORT_BIT( 0xff, 0x7f, IPT_AD_STICK_X ) PORT_MINMAX(0x40, 0xbf) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(1) PORT_START("STICK3") PORT_BIT( 0xff, 0x7f, IPT_AD_STICK_X ) PORT_MINMAX(0x40, 0xbf) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_REVERSE PORT_PLAYER(2) |
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No.06959
sxevious Tester
Dec 23, 2010, 17:24
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Nothing was actually fixed in 140u3. If the inputs are hooked up as I listed in my previous post (#6944) then the controls should fully work in upright and cocktail modes. Don't forget to handle writes to address 2506 to flip the screen for cocktail mode (see post #6940). |
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No.06960
Tafoid Administrator
Dec 23, 2010, 17:39
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I fixed the fact that there were 4 buttons per player and did some preliminary research. I personally didn't get time to work with your bits of submission. If you can get a working source to 0.140u3 and want to make the changes locally, test them and then send in - feel free to submit a .DIFF patch using the guidelines shown here: http://mamedev.org/devwiki/index.php/Submitting_Source_Code Otherwise, you'll just need to wait for another Dev to step up and take the time to do this. Almost everyone I know is pretty busy this holiday season. |
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No.06963
Tafoid Administrator
Dec 27, 2010, 11:47
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I had the chance this morning to hook up and test your snippets and submit an update fully activating cocktail and controls (along with labels). Thanks for your research. |