From 3af6cad39858c3d2888f6794827b51043d874967 Mon Sep 17 00:00:00 2001
From: arbee <rb6502@users.noreply.github.com>
Date: Sat, 26 Sep 2020 08:42:50 -0400
Subject: [PATCH] seibuspi: allow recovery if MAME is exited during the initial
 flash process [R. Belmont]

---
 src/mame/drivers/seibuspi.cpp | 6 ++++++
 src/mame/includes/seibuspi.h  | 8 ++++++++
 2 files changed, 14 insertions(+)

diff --git a/src/mame/drivers/seibuspi.cpp b/src/mame/drivers/seibuspi.cpp
index 495b44ca4f0..c970d99cd1d 100644
--- a/src/mame/drivers/seibuspi.cpp
+++ b/src/mame/drivers/seibuspi.cpp
@@ -1778,6 +1778,12 @@ MACHINE_RESET_MEMBER(seibuspi_state,spi)
 	m_z80_bank->set_entry(0);
 	m_z80_lastbank = 0;
 	m_z80_prg_transfer_pos = 0;
+
+	// fix the magic ID byte so users can't "brick" the machine
+	if (m_soundflash1 && m_soundflash1_region)
+	{
+		m_soundflash1->write_raw(0, m_soundflash1_region[0]);
+	}
 }
 
 void seibuspi_state::spi(machine_config &config)
diff --git a/src/mame/includes/seibuspi.h b/src/mame/includes/seibuspi.h
index 19c64116ba8..1ee4287d3ae 100644
--- a/src/mame/includes/seibuspi.h
+++ b/src/mame/includes/seibuspi.h
@@ -8,6 +8,7 @@
 
 #include "machine/eepromser.h"
 #include "machine/7200fifo.h"
+#include "machine/intelfsh.h"
 #include "sound/okim6295.h"
 #include "emupal.h"
 #include "tilemap.h"
@@ -29,6 +30,9 @@ public:
 		, m_key(*this, "KEY.%u", 0)
 		, m_special(*this, "SPECIAL")
 		, m_z80_bank(*this, "z80_bank")
+		, m_soundflash1(*this, "soundflash1")
+		, m_soundflash2(*this, "soundflash2")
+		, m_soundflash1_region(*this, "soundflash1")
 	{ }
 
 	void sys386f(machine_config &config);
@@ -75,6 +79,10 @@ protected:
 
 	optional_memory_bank m_z80_bank;
 
+	optional_device<intel_e28f008sa_device> m_soundflash1, m_soundflash2;
+
+	optional_region_ptr<u8> m_soundflash1_region;
+
 	int m_z80_prg_transfer_pos;
 	int m_z80_lastbank;
 	u8 m_sb_coin_latch;