From 2a262acb7b731a94f3ff42aa3de61ef18dca1662 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jean-Fran=C3=A7ois=20DEL=20NERO?=
 <jeanfrancoisdelnero@free.fr>
Date: Wed, 1 Nov 2017 00:34:48 +0100
Subject: [PATCH] Bus error stack frame : 68010 / 68020 / 68030 stack frames
 formats support added. This make work this very common CPU type detection
 routine based on the bus error frame stack size :
 http://www.easy68k.com/EASy68Kforum/viewtopic.php?p=1105#p1105

---
 src/devices/cpu/m68000/m68kcpu.h | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/devices/cpu/m68000/m68kcpu.h b/src/devices/cpu/m68000/m68kcpu.h
index df2a754a13f..dce0c2205a8 100644
--- a/src/devices/cpu/m68000/m68kcpu.h
+++ b/src/devices/cpu/m68000/m68kcpu.h
@@ -1672,8 +1672,24 @@ static inline void m68ki_exception_address_error(m68000_base_device *m68k)
 	}
 	m68k->run_mode = RUN_MODE_BERR_AERR_RESET;
 
-	/* Note: This is implemented for 68000 only! */
-	m68ki_stack_frame_buserr(m68k, sr);
+	if (!CPU_TYPE_IS_010_PLUS(m68k->cpu_type))
+	{
+		/* Note: This is implemented for 68000 only! */
+		m68ki_stack_frame_buserr(m68k, sr);
+	}
+	else if (CPU_TYPE_IS_010(m68k->cpu_type))
+	{
+		/* only the 68010 throws this unique type-1000 frame */
+		m68ki_stack_frame_1000(m68k, REG_PPC(m68k), sr, EXCEPTION_BUS_ERROR);
+	}
+	else if (m68k->mmu_tmp_buserror_address == REG_PPC(m68k))
+	{
+		m68ki_stack_frame_1010(m68k, sr, EXCEPTION_BUS_ERROR, REG_PPC(m68k), m68k->mmu_tmp_buserror_address);
+	}
+	else
+	{
+		m68ki_stack_frame_1011(m68k, sr, EXCEPTION_BUS_ERROR, REG_PPC(m68k), m68k->mmu_tmp_buserror_address);
+	}
 
 	m68ki_jump_vector(m68k, EXCEPTION_ADDRESS_ERROR);