From 9d849dde700728a9aa154da74a32fbb93002913f Mon Sep 17 00:00:00 2001
From: mamehaze <140764005+mamehaze@users.noreply.github.com>
Date: Thu, 30 May 2024 06:05:07 +0100
Subject: new WORKING machine (Gun Kids - Sammy Medal game) (#12417)

New working systems
-------------------
Hayauchi Gun Kids [Darksoft, TeamEurope]
---
 src/mame/mame.lst           |  1 +
 src/mame/sigma/sigmab98.cpp | 24 ++++++++++++++++++++----
 2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 1d02b1afb6c..b644e1f2dbf 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -41504,6 +41504,7 @@ dashhero                        // b9811 (c) 1999 Sigma
 dodghero                        // b9802 (c) 1997 Sigma
 gegege                          // b9804 (c) 1997 Sigma / Banpresto
 gocowboy                        // (c) 2003 Sammy
+gunkids                         // (c) 2002 Sammy
 haekaka                         // (c) 2001 Sammy
 itazuram                        // (c) 2000 Sammy
 lufykzku                        // (c) 2001 Banpresto
diff --git a/src/mame/sigma/sigmab98.cpp b/src/mame/sigma/sigmab98.cpp
index 9a3f27ea5a1..5488e390282 100644
--- a/src/mame/sigma/sigmab98.cpp
+++ b/src/mame/sigma/sigmab98.cpp
@@ -2094,10 +2094,12 @@ ROM_END
 
 ***************************************************************************/
 
-#define SAMMYMDL_BIOS                                                                                               \
-	ROM_REGION( 0x80000, "mainbios", 0 )                                                                            \
-	ROM_SYSTEM_BIOS( 0, "v5", "IPL Ver. 5.0" )                                                                      \
-	ROM_LOAD( "vm1211l01.u2", 0x000000, 0x080000, CRC(c3c74dc5) SHA1(07352e6dba7514214e778ba39e1ca773e4698858) )
+#define SAMMYMDL_BIOS                                                                                                           \
+	ROM_REGION( 0x80000, "mainbios", 0 )                                                                                        \
+	ROM_SYSTEM_BIOS( 0, "v5", "IPL Ver. 5.0" ) /* (c)2003 */                                                                                 \
+	ROMX_LOAD( "vm1211l01.u2",  0x000000, 0x080000, CRC(c3c74dc5) SHA1(07352e6dba7514214e778ba39e1ca773e4698858), ROM_BIOS(0) ) \
+	ROM_SYSTEM_BIOS( 1, "v4", "IPL Ver. 4.0" ) /* (c)2000, ROM patches not correct for this BIOS */                                      \
+	ROMX_LOAD( "mt201l04.u012", 0x000000, 0x080000, CRC(c8c6d25f) SHA1(5be39fa72b65f2e455ccc146dbab58d24ab46505), ROM_BIOS(1) )
 
 ROM_START( sammymdl )
 	SAMMYMDL_BIOS
@@ -2133,6 +2135,19 @@ ROM_START( animalc )
 	ROM_LOAD( "vx2301l01.u016", 0x00000, 0x200000, CRC(4ae14ff9) SHA1(1273d15ea642452fecacff572655cd3ab47a5884) )   // 1xxxxxxxxxxxxxxxxxxxx = 0x00
 ROM_END
 
+ROM_START( gunkids )
+	SAMMYMDL_BIOS
+
+	ROM_REGION( 0x1000000, "oki", ROMREGION_ERASEFF )
+	ROM_LOAD( "vx2302l01.u021", 0x00000, 0x200000, CRC(3d989a45) SHA1(f4e1dc13bfe9ef8bf733735b6647946dda6962f2) )
+
+	ROM_REGION( 0x40000, "maincpu", 0 )
+	ROM_COPY( "oki", 0x1c0000, 0x00000, 0x40000 )
+
+	ROM_REGION( 0x200000, "sprites", 0 )
+	ROM_LOAD( "vx2301l01.u016", 0x00000, 0x200000, CRC(5e356b68) SHA1(0e4e28b02dcb5ff7d2a7139c5cdf31cbd08167f4) )
+ROM_END
+
 void sammymdl_state::init_animalc()
 {
 	uint8_t *rom = memregion("mainbios")->base();
@@ -2344,4 +2359,5 @@ GAME( 2000, itazuram, sammymdl, itazuram, sammymdl, sammymdl_state, init_itazura
 GAME( 2000, pyenaget, sammymdl, pyenaget, sammymdl, sammymdl_state, init_haekaka,  ROT0, "Sammy",             "Pye-nage Taikai",                      0 )
 GAME( 2000, tdoboon,  sammymdl, tdoboon,  haekaka,  sammymdl_state, init_haekaka,  ROT0, "Sammy",             "Taihou de Doboon",                     0 )
 GAME( 2001, haekaka,  sammymdl, haekaka,  haekaka,  sammymdl_state, init_haekaka,  ROT0, "Sammy",             "Hae Hae Ka Ka Ka",                     0 )
+GAME( 2002, gunkids,  sammymdl, animalc,  sammymdl, sammymdl_state, init_animalc,  ROT0, "Sammy",             "Hayauchi Gun Kids",                  0 )
 GAME( 2003, gocowboy, 0,        gocowboy, gocowboy, sammymdl_state, empty_init,    ROT0, "Sammy",             "Go Go Cowboy (English, prize)",        0 )
-- 
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