From 3b300489aff9b94897c198e9706f7a3898ba8271 Mon Sep 17 00:00:00 2001
From: David Haywood <davidhaywood@users.noreply.github.com>
Date: Tue, 29 Aug 2017 22:52:45 +0100
Subject: [PATCH] new clones Alligator Hunt (World, protected) [Pablo]

from a dead board, howver, this also shows where the region byte is and uncovers that there's an alt. title of Lizard Hunt, maybe that was used for the US region?
---
 src/mame/drivers/gaelco2.cpp | 39 ++++++++++++++++++++++++++++++++++--
 src/mame/mame.lst            |  1 +
 2 files changed, 38 insertions(+), 2 deletions(-)

diff --git a/src/mame/drivers/gaelco2.cpp b/src/mame/drivers/gaelco2.cpp
index c84b03fd625..3d8ae93ebae 100644
--- a/src/mame/drivers/gaelco2.cpp
+++ b/src/mame/drivers/gaelco2.cpp
@@ -832,10 +832,44 @@ REF: 940411
 */
 
 
+/* 
+	the byte at 0x1ff in the rom at u44 controls the language / region settings
+	and even allows for an alt. title of Lizard Hunt
+
+	bit 0x08 = title (0x00 = LIZARD HUNT, 0x08 = ALLIGATOR HUNT)
+	bit 0x04 = language (0x00 = SPANISH, 0x04 = ENGLISH)
+	bit 0x03 = region warning ( 0x00, 0x02 = USA, 0x01 = NOT USA, 0x03 = NO WARNING)
+*/
+
 ROM_START( aligator )
+	ROM_REGION( 0x100000, "maincpu", 0 )    /* 68000 code */
+	ROM_LOAD16_BYTE(    "1.u45",  0x000000, 0x080000, CRC(61c47c56) SHA1(6dd3fc6fdab252e0fb43c0793eef70203c888d7f) )
+	ROM_LOAD16_BYTE(    "2.u44",  0x000001, 0x080000, CRC(96bc77c2) SHA1(72975fa188598d8ed595cbba097b60efe14bd190) )
+
+	ROM_REGION( 0x8000, "gaelco_ds5002fp:sram", 0 ) /* DS5002FP code */
+	ROM_LOAD( "aligator_ds5002fp.bin", 0x00000, 0x8000, CRC(6558f215) SHA1(c961a9c81aa6b746294baf83ea5d1fcf7acab9db) )
+
+	ROM_REGION( 0x100, "gaelco_ds5002fp:mcu:internal", ROMREGION_ERASE00 )
+	/* these are the default states stored in NVRAM */
+	DS5002FP_SET_MON( 0x19 )
+	DS5002FP_SET_RPCTL( 0x00 )
+	DS5002FP_SET_CRCR( 0x80 )
+
+	ROM_REGION( 0x1400000, "gfx1", 0 ) /* GFX + Sound */
+	/* 0x0000000-0x0ffffff filled in in the DRIVER_INIT */
+	ROM_FILL(               0x1000000, 0x0400000, 0x00 )     /* to decode GFX as 5 bpp */
+
+	ROM_REGION( 0x1000000, "gfx2", 0 ) /* Temporary storage */
+	ROM_LOAD( "u48",        0x0000000, 0x0400000, CRC(19e03bf1) SHA1(2b3a4bb438b0aebf4f6a9fd26b071e5c9dd222b8) )    /* GFX only */
+	ROM_LOAD( "u47",        0x0400000, 0x0400000, CRC(74a5a29f) SHA1(8ea2aa1f8a80c5b88ca9222c5ecc3c4794e0a160) )    /* GFX + Sound */
+	ROM_LOAD( "u50",        0x0800000, 0x0400000, CRC(85daecf9) SHA1(824f6d2491075b1ef96ecd6667c5510409338a2f) )    /* GFX only */
+	ROM_LOAD( "u49",        0x0c00000, 0x0400000, CRC(70a4ee0b) SHA1(07b09916f0366d0c6eed94a905ec0b9d6ac9e7e1) )    /* GFX + Sound */
+ROM_END
+
+ROM_START( aligators )
 	ROM_REGION( 0x100000, "maincpu", 0 )    /* 68000 code */
 	ROM_LOAD16_BYTE(    "u45",  0x000000, 0x080000, CRC(61c47c56) SHA1(6dd3fc6fdab252e0fb43c0793eef70203c888d7f) )
-	ROM_LOAD16_BYTE(    "u44",  0x000001, 0x080000, CRC(f0be007a) SHA1(2112b2e5f020028b50c8f2c72c83c9fee7a78224) )
+	ROM_LOAD16_BYTE(    "u44",  0x000001, 0x080000, CRC(f0be007a) SHA1(2112b2e5f020028b50c8f2c72c83c9fee7a78224) ) /* differs by 1 byte from above set, see note */
 
 	ROM_REGION( 0x8000, "gaelco_ds5002fp:sram", 0 ) /* DS5002FP code */
 	ROM_LOAD( "aligator_ds5002fp.bin", 0x00000, 0x8000, CRC(6558f215) SHA1(c961a9c81aa6b746294baf83ea5d1fcf7acab9db) )
@@ -1726,7 +1760,8 @@ ROM_END
 
 
 
-GAME( 1994, aligator,   0,       alighunt_d5002fp, alighunt, gaelco2_state, alighunt, ROT0, "Gaelco", "Alligator Hunt (Spain, protected)", 0 ) // Spanish win quotes between levels - is there an English protected set too or way to switch it? all strings are in the ROMs.
+GAME( 1994, aligator,   0,       alighunt_d5002fp, alighunt, gaelco2_state, alighunt, ROT0, "Gaelco", "Alligator Hunt (World, protected)", 0 )
+GAME( 1994, aligators,  aligator,alighunt_d5002fp, alighunt, gaelco2_state, alighunt, ROT0, "Gaelco", "Alligator Hunt (Spain, protected)", 0 )
 GAME( 1994, aligatorun, aligator,alighunt,         alighunt, gaelco2_state, alighunt, ROT0, "Gaelco", "Alligator Hunt (unprotected, set 1)", 0 )
 GAME( 1994, aligatoruna,aligator,alighunt,         alighunt, gaelco2_state, alighunt, ROT0, "Gaelco", "Alligator Hunt (unprotected, set 2)", 0 ) // strange version, starts on space stages, but clearly a recompile not a trivial hack of the above, show version maybe?
 
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 584108f5b74..0191501acf0 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -12872,6 +12872,7 @@ thoop                           // (c) 1992 - Ref 922804/1
 
 @source:gaelco2.cpp
 aligator                        // (c) 1994 - Ref 940411
+aligators                       // (c) 1994 - Ref 940411
 aligatorun                      // (c) 1994 - Ref 940411 (unprotected)
 aligatoruna                     // (c) 1994 - Ref 940411 (unprotected)
 bang                            // (c) 1998 - Ref ???