Added smbn. Fixed pgm sound.

Author: Robbbert

docs/release/docs/hbnew.txt

@@ -45,6 +45,7 @@ New Games
 - [sfa2g]               Street Fighter Alpha 2 Gold (960826, PS2 Backport, 2026-08-27)
 - [sfz2d]               Street Fighter Zero 2 Dash (960805J, PS2 Backport, 2026-08-27)
 - [sfz2da]              Street Fighter Zero 2 Dash (960826, English, PS2 Backport, 2026-08-27)
+- [smbn]                Super Mario Bros. (Neo Geo)
 - [wjammers04]          Windjammers (Endless Breeze)
 
 

src/devices/sound/ics2115.cpp

@@ -433,6 +433,10 @@ bool ics2115_device::ics2115_voice::playing()
 int ics2115_device::fill_output(ics2115_voice& voice, sound_stream &stream)
 {
 	bool irq_invalid = false;
+	//HBMAME fix the sound cutting out
+	const u16 fine = 1 << (3* (voice.vol.incr >> 6));
+	voice.vol.add = (voice.vol.incr & 0x3f) << (10 - fine);
+#if 0
 	// measured from hardware
 	switch (voice.vol.mode & 0x3)
 	{
@@ -448,7 +452,7 @@ int ics2115_device::fill_output(ics2115_voice& voice, sound_stream &stream)
 			voice.vol.add = voice.vol.incr << 10;
 			break;
 	}
-
+#endif
 	for (int i = 0; i < stream.samples(); i++)
 	{
 		const s32 volacc = (voice.vol.acc >> 14) & 0xfff;

src/hbmame/drivers/neogeohb.cpp

@@ -230,7 +230,8 @@ NUM GAME YEAR COMPANY                 TITLE
 520 5345 2026 Z-team                  Midnight Wanderers (Neo-Geo port) 2-level demo
 521 5345 2026 Z-team                  Rick Dangerous DX
 522 0539 2026 Sabino                  Doom Geo (demo)
-523 0539 2026 Sabino                  Free Doom
+523 0539 2026 Sabino                  Free Doom (demo)
+524 2026 2026 Sabino                  Super Mario Bros.
 539 0539 2025 Shadow Gangs            Shadow Gangs demo
 
 
@@ -2991,8 +2992,27 @@ ROM_START( freedoom )
 ROM_END
 
 
+// 524: Super Mario Bros (not related to 495: New Super Mario Brothers)
+// Bugs: If the screen suddenly goes black, you'll have to restart the game
+ROM_START( smbn )
+	ROM_REGION( 0x100000, "maincpu", 0 )
+	ROM_LOAD16_WORD_SWAP( "524.p1", 0x000000, 0x100000, CRC(7f2203e2) SHA1(40c8a2aaedfde648729341da967698e46ebeee46) )
+
+	NEO_SFIX_128K( "524.s1", CRC(d26aa99f) SHA1(9157796d485fe6fcf9d6563e8f0006e0d26d7c8f) )
+
+	NEO_BIOS_AUDIO_128K( "524.m1", CRC(407e6cb6) SHA1(be0de4793809801436f8d4b1e8c639cb121e1022) )
+
+	ROM_REGION( 0x80000, "ymsnd:adpcma", 0 )
+	ROM_LOAD( "524.v1", 0x000000, 0x80000, CRC(87a8bcb3) SHA1(36005525795ef2c4779eae3955fae722a0abafb7) )
+
+	ROM_REGION( 0x400000, "sprites", ROMREGION_ERASE00 )
+	ROM_LOAD16_BYTE( "524.c1", 0x0000000, 0x200000, CRC(6ca43fd1) SHA1(35aacdc116d93d9ea719660e4d4ab13231944bc3) )
+	// c2 rom supplied is all zeroes, so not needed
+ROM_END
+
+
 // 539: Shadow Gangs demo by Shadow Gangs
-// bugs: screen goes black, sound stops after a few seconds
+// Bugs: If the screen suddenly goes black, you'll have to restart the game
 ROM_START( sgz ) // demo
 	ROM_REGION( 0x200000, "maincpu", 0 )
 	ROM_LOAD16_WORD_SWAP( "539.p1", 0x000000, 0x100000, CRC(825d0989) SHA1(0b58b061af47df7bfe402fd8207aa7d9f76aecda) )
@@ -4594,6 +4614,7 @@ GAME( 2019, shaman24,     shaman16, neogeo_noslot,   neogeo,  neogeo_state, init
 GAME( 2025, shinobin,     neogeo,   neogeo_noslot,   neogeo,  neogeo_state, init_neogeo,   ROT0, "H0ffman", "Shinobi v1.0 (Neo-Geo port)", MACHINE_SUPPORTS_SAVE )
 GAME( 2025, shinobin1,    shinobin, neogeo_noslot,   neogeo,  neogeo_state, init_neogeo,   ROT0, "H0ffman", "Shinobi v1.1 (Neo-Geo port)", MACHINE_SUPPORTS_SAVE )
 GAME( 2025, shinobint,    shinobin, neogeo_noslot,   neogeo,  neogeo_state, init_neogeo,   ROT0, "H0ffman", "Shinobi Test (Neo-Geo port)", MACHINE_SUPPORTS_SAVE )
+GAME( 2026, smbn,         neogeo,   neogeo_noslot,   neogeo,  neogeo_state, init_neogeo,   ROT0, "Sabino", "Super Mario Bros.", MACHINE_SUPPORTS_SAVE )
 GAME( 2009, smi,          neogeo,   neogeo_noslot,   neogeo,  neogeo_state, init_neogeo,   ROT0, "[Raregame]", "Spiderman (Intro demo)", MACHINE_SUPPORTS_SAVE )
 GAME( 2015, snddemo,      neogeo,   neogeo_noslot,   neogeo,  neogeo_state, init_neogeo,   ROT0, "Freem", "Sound-Loop Demo", MACHINE_SUPPORTS_SAVE )
 GAME( 2025, spkick,       neogeo,   neogeo_noslot,   neogeo,  neogeo_state, init_neogeo,   ROT0, "Kakoeimon", "Super Power Kick (beta 1)", MACHINE_SUPPORTS_SAVE )

src/hbmame/drivers/pgm_hb.cpp

@@ -1057,7 +1057,7 @@ void pgm_hb::pgm(machine_config &config)
 
 	ICS2115(config, m_ics, 33.8688_MHz_XTAL);
 	m_ics->irq().set_inputline("soundcpu", 0);
-	m_ics->add_route(ALL_OUTPUTS, "mono", 2.0); // HBMAME - wind the volume up to 11
+	m_ics->add_route(ALL_OUTPUTS, "mono", 0.25);
 }
 
 void pgm_hb::init_pgm()
@@ -1105,9 +1105,9 @@ ROM_START( pgemeni )
 	ROM_REGION16_LE( 0x1000000, "sprmask", 0 )
 	ROM_LOAD( "pgemeni.b1",          0x0000000, 0x400000, CRC(b4127373) SHA1(fa731bedec8ff4c19ec68bd44e8ce0b80ec0c716) )
 
-	ROM_REGION( 0x600000, "ics", 0 )
+	ROM_REGION( 0x600000, "ics", ROMREGION_ERASE00 )
 	PGM_AUDIO_BIOS
-	ROM_LOAD( "pgmdemo.m1",          0x400000, 0x200000, CRC(8d89877e) SHA1(7d76d48d64d7ac5411d714a4bb83f37e3e5b8df6) )
+	// supplied m1 rom is all zeroes, so not needed
 ROM_END
 
 ROM_START( pgmdemo )
@@ -1125,9 +1125,9 @@ ROM_START( pgmdemo )
 	ROM_REGION16_LE( 0x1000000, "sprmask", 0 )
 	ROM_LOAD( "pgmdemo.b1",          0x0000000, 0x400000, CRC(15dd191f) SHA1(a90f63138c9a9bf9215b17a14635518aed7da8a9) )
 
-	ROM_REGION( 0x600000, "ics", 0 )
+	ROM_REGION( 0x600000, "ics", ROMREGION_ERASE00 )
 	PGM_AUDIO_BIOS
-	ROM_LOAD( "pgmdemo.m1",          0x400000, 0x200000, CRC(8d89877e) SHA1(7d76d48d64d7ac5411d714a4bb83f37e3e5b8df6) )
+	// supplied m1 rom is all zeroes, so not needed
 ROM_END
 
 ROM_START( pgmfrog )

src/hbmame/hbmame.lst

@@ -6389,7 +6389,7 @@ samantha
 santabll
 sbpf
 seafight
-sgz                                    // runs for a few seconds then black screen
+sgz
 shaman16
 //shaman17
 //shaman18
@@ -6402,6 +6402,7 @@ shaman20
 shinobin
 shinobin1
 shinobint
+smbn
 smi
 snddemo
 spkick