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dkongjr

MAME Fan

Reged: 03/25/16

Posts: 45

Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation
04/28/16 10:35 AM

Very strange. So I found several ways to avoid MAME crash after shooting the reactor. In file "../video/model1.c", function "push_object":

Method 1a:

Code:


	if(poly_adr == 0x1229f8)
		return;

	if(poly_adr == 0xc417)
		return;

	if(poly_adr == 0x1d)
		return;

Method 1b:

Code:


	if(tex_adr == 0xc67d8eb3)
		return;

	if(tex_adr == 0x4000c440)
		return;

	if(tex_adr == 0xc000c40e)
		return;

Looking at (tex_adr, poly_adr) parameters function "push_object" is called with, it seems the cause of the problem happens back in function "tgp_render", case 1, when zz == 1 and push_object's first argument "readi(list+2)", that is "tex_adr", is out of bounds. Comparing it with other calls before the crash, the last one when the crash happens sticks out like a sore thumb:
---------------------- END FRAME
50053, 198cdd
4f870, 190e1d
478df, c9612
478ea, c97a9
4fb18, 193eee
478d8, c9550
478de, c95e3
502f7, 19b676
c67d8eb3, 1229f8

Method 2:

Code:


//			cquad.col=(r<<10)|(g<<5)|(b<<0);

I find it a bit strange that commenting out this line would also prevent the crash. But what is really very strange is this 3rd way to avoid the crash...

Method 3:

Code:


printf("blahblah-blahblahblah...\n");
		fclip_push_quad(0, &cquad);

So this just slows down the game before "fclip_push_quad" call, and MAME does not crash. It's as if this function runs in a thread that uses some values from some place which are updated by some code running in another thread, and it's like these two threads need to be synchronized or this function will pull out garbage values when accessed before they are made ready by the other thread. Or something among those lines. I do not see what else could explain this weirdness.

In any case, unfortunately, apart from avoiding the crash none of these methods really solve the problem as the game then enters never-ending loop where the camera goes out of the cockpit circling around the ship while the reactor chamber keeps exploding. Olivieeeeer!!

Entire thread
Subject	Posted by	Posted on
Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	03/25/16 01:15 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/20/16 12:08 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Roman	04/20/16 12:55 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/20/16 01:23 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	04/20/16 04:06 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	SailorSat	06/25/16 09:03 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	John IV	04/20/16 05:24 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	04/20/16 09:15 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	jonwil	04/08/16 02:23 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	jonwil	04/05/16 01:28 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	04/05/16 05:15 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	AaronGiles	04/05/16 06:59 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	04/05/16 02:33 PM
May the Force be with you	Smitdogg	03/30/16 03:27 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	03/26/16 04:40 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	drewcifer	03/27/16 09:19 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	03/27/16 02:35 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	gregf	03/27/16 07:55 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	03/28/16 10:31 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	03/29/16 03:28 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	03/29/16 03:13 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	03/29/16 06:24 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Ville Linde	03/29/16 06:35 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Osso1	03/29/16 06:43 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	03/30/16 07:15 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	MooglyGuy	03/30/16 08:28 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	03/30/16 09:23 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	03/30/16 04:46 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	03/30/16 09:59 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	03/30/16 12:30 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Ville Linde	03/30/16 03:11 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	03/31/16 12:22 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Traso	04/07/16 05:37 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/02/16 06:52 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/04/16 02:53 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Ville Linde	04/04/16 05:37 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/04/16 09:26 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	04/04/16 10:55 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/05/16 07:15 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	04/05/16 10:39 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	04/06/16 05:57 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	04/06/16 07:48 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/07/16 11:42 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Ville Linde	04/07/16 05:28 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/07/16 09:04 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	04/07/16 11:16 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/08/16 06:32 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	04/08/16 07:05 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/08/16 11:22 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/09/16 12:03 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/10/16 07:50 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Ville Linde	04/11/16 07:45 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/11/16 08:36 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Ville Linde	04/11/16 08:50 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	04/11/16 10:42 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/15/16 03:50 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/15/16 11:35 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	04/19/16 07:39 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/20/16 12:49 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Haze	04/20/16 01:00 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	04/20/16 04:38 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/20/16 09:35 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	04/20/16 10:20 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/21/16 12:39 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/28/16 10:35 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/28/16 04:26 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	uman	04/29/16 01:12 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	lettuce	05/02/16 04:14 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	terminento	05/10/16 05:29 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	MooglyGuy	05/10/16 05:52 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	terminento	05/10/16 06:07 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Artman99	06/15/16 05:48 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	06/15/16 07:36 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Ville Linde	06/16/16 07:28 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	06/16/16 07:47 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Artman99	06/16/16 02:44 AM
Hi Bart Simo nt	MooglyGuy	06/16/16 06:19 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	06/16/16 05:14 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Artman99	06/16/16 08:24 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	gamez fan	05/11/16 12:28 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	MooglyGuy	05/10/16 06:27 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	terminento	05/10/16 07:01 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	terminento	05/10/16 11:48 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	05/11/16 05:49 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	05/11/16 04:14 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	05/11/16 05:37 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	DarthMarino	05/11/16 02:57 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	terminento	05/11/16 02:18 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Anonymous	05/11/16 01:19 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	05/12/16 04:52 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	terminento	05/14/16 04:10 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Vas Crabb	05/11/16 04:25 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Anonymous	05/11/16 07:16 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Envisaged0ne	05/11/16 06:55 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Anonymous	05/11/16 07:34 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	terminento	05/11/16 08:36 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	04/22/16 05:16 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	LensLarque	04/15/16 11:47 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/11/16 09:40 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/13/16 07:40 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	04/13/16 09:33 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/13/16 10:34 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	R. Belmont	04/14/16 05:02 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/14/16 05:57 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	MooglyGuy	04/14/16 01:41 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/14/16 06:22 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Master O	04/14/16 04:44 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Ziggy100	04/15/16 10:23 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Master O	04/15/16 11:42 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	joey35car	04/12/16 12:46 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/08/16 12:10 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	04/08/16 08:17 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/08/16 01:11 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/05/16 11:17 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	04/05/16 11:45 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/05/16 11:53 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/05/16 11:45 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/05/16 03:21 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Ville Linde	04/05/16 07:00 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/05/16 11:18 AM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Ville Linde	04/05/16 01:23 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	04/05/16 02:46 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	MooglyGuy	04/04/16 03:41 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	Olivier Galibert	03/25/16 02:17 PM
Re: Star Wars Arcade (SEGA, 1993): fixing model1 emulation	dkongjr	03/25/16 06:18 PM

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