-machine/68340.cpp, machine/scc68070.cpp: Don't mess with devcbs in device_start.

-bfm/bfm_swp.cpp: Fixed ROM offset mask (it's words, not bytes).

src/devices/machine/68340.cpp

@@ -256,8 +256,6 @@ void m68340_cpu_device::set_modck(int state)
 
 void m68340_cpu_device::device_start()
 {
-	reset_cb().append(*this, FUNC(m68340_cpu_device::reset_peripherals));
-
 	fscpu32_device::device_start();
 
 	m_m68340SIM    = new m68340_sim();
@@ -273,11 +271,23 @@ void m68340_cpu_device::device_start()
 	m_internal = &space(AS_PROGRAM);
 }
 
+
+void m68340_cpu_device::device_config_complete()
+{
+	fscpu32_device::device_config_complete();
+
+	reset_cb().append(*this, FUNC(m68340_cpu_device::reset_peripherals));
+}
+
+
 void m68340_cpu_device::reset_peripherals(int state)
 {
+	if (state)
+	{
 		m_m68340SIM->module_reset();
 		m_m68340DMA->module_reset();
 		m_serial->module_reset();
 		m_timer[0]->module_reset();
 		m_timer[1]->module_reset();
+	}
 }

src/devices/machine/68340.h

@@ -46,6 +46,7 @@ protected:
 	virtual void device_start() override;
 	virtual void device_reset() override;
 	virtual void device_add_mconfig(machine_config &config) override;
+	virtual void device_config_complete() override;
 
 	void reset_peripherals(int state);
 

src/devices/machine/scc68070.cpp

@@ -266,8 +266,6 @@ scc68070_device::scc68070_device(const machine_config &mconfig, const char *tag,
 
 void scc68070_device::device_start()
 {
-	reset_cb().append(*this, FUNC(scc68070_device::reset_peripherals));
-
 	scc68070_base_device::device_start();
 
 	save_item(NAME(m_ipl));
@@ -429,8 +427,19 @@ void scc68070_device::device_reset()
 	set_timer_callback(0);
 }
 
+
+void scc68070_device::device_config_complete()
+{
+	scc68070_base_device::device_config_complete();
+
+	reset_cb().append(*this, FUNC(scc68070_device::reset_peripherals));
+}
+
+
 void scc68070_device::reset_peripherals(int state)
 {
+	if (state)
+	{
 		m_lir = 0;
 
 		m_picr1 = 0;
@@ -466,6 +475,7 @@ void scc68070_device::reset_peripherals(int state)
 		m_i2c.timer->adjust(attotime::never);
 
 		update_ipl();
+	}
 }
 
 void scc68070_device::update_ipl()

src/devices/machine/scc68070.h

@@ -193,6 +193,7 @@ protected:
 	// device_t implementation
 	virtual void device_start() override;
 	virtual void device_reset() override;
+	virtual void device_config_complete() override;
 
 	// device_execute_interface implementation
 	virtual u64 execute_clocks_to_cycles(u64 clocks) const noexcept override { return (clocks + 2 - 1) / 2; }

src/mame/bfm/bfm_swp.cpp

@@ -149,7 +149,7 @@ uint16_t bfm_swp_state::bfm_swp_mem_r(offs_t offset, uint16_t mem_mask)
 	switch ( cs )
 	{
 		case 1:
-			return m_cpuregion[offset & 0xfffff];
+			return m_cpuregion[offset & 0x7ffff];
 		case 2:
 			return m_mainram[offset & 0x1fff];