diff --git a/src/devices/bus/bml3/kanji.cpp b/src/devices/bus/bml3/kanji.cpp
index ecc466b2bda..bfeef207720 100644
--- a/src/devices/bus/bml3/kanji.cpp
+++ b/src/devices/bus/bml3/kanji.cpp
@@ -41,12 +41,12 @@ const tiny_rom_entry *bml3bus_kanji_device::device_rom_region() const
 	return ROM_NAME( kanji );
 }
 
-uint8_t bml3bus_kanji_device::bml3_kanji_r(offs_t offset)
+uint8_t bml3bus_kanji_device::read(offs_t offset)
 {
 	return m_rom[((uint32_t)m_kanji_addr << 1) + offset];
 }
 
-void bml3bus_kanji_device::bml3_kanji_w(offs_t offset, uint8_t data)
+void bml3bus_kanji_device::write(offs_t offset, uint8_t data)
 {
 	m_kanji_addr &= (0xff << (offset*8));
 	m_kanji_addr |= (data << ((offset^1)*8));
@@ -77,7 +77,7 @@ void bml3bus_kanji_device::device_start()
 void bml3bus_kanji_device::map_io(address_space_installer &space)
 {
 	// install into memory
-	space.install_readwrite_handler(0xff75, 0xff76, read8sm_delegate(*this, FUNC(bml3bus_kanji_device::bml3_kanji_r)), write8sm_delegate(*this, FUNC(bml3bus_kanji_device::bml3_kanji_w)));
+	space.install_readwrite_handler(0xff75, 0xff76, read8sm_delegate(*this, FUNC(bml3bus_kanji_device::read)), write8sm_delegate(*this, FUNC(bml3bus_kanji_device::write)));
 }
 
 void bml3bus_kanji_device::device_reset()
diff --git a/src/devices/bus/bml3/kanji.h b/src/devices/bus/bml3/kanji.h
index d1e456508ae..57b275843e2 100644
--- a/src/devices/bus/bml3/kanji.h
+++ b/src/devices/bus/bml3/kanji.h
@@ -27,8 +27,8 @@ public:
 	// construction/destruction
 	bml3bus_kanji_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
 
-	uint8_t bml3_kanji_r(offs_t offset);
-	void bml3_kanji_w(offs_t offset, uint8_t data);
+	uint8_t read(offs_t offset);
+	void write(offs_t offset, uint8_t data);
 
 protected:
 	virtual void device_start() override;
diff --git a/src/devices/bus/bml3/mp1802.cpp b/src/devices/bus/bml3/mp1802.cpp
index 30c39ae61d4..562a4711e6c 100644
--- a/src/devices/bus/bml3/mp1802.cpp
+++ b/src/devices/bus/bml3/mp1802.cpp
@@ -79,12 +79,12 @@ const tiny_rom_entry *bml3bus_mp1802_device::device_rom_region() const
 	return ROM_NAME( mp1802 );
 }
 
-uint8_t bml3bus_mp1802_device::bml3_mp1802_r()
+uint8_t bml3bus_mp1802_device::read()
 {
 	return (m_fdc->drq_r() ? 0x00 : 0x80) | (m_fdc->intrq_r() ? 0x00 : 0x40);
 }
 
-void bml3bus_mp1802_device::bml3_mp1802_w(uint8_t data)
+void bml3bus_mp1802_device::write(uint8_t data)
 {
 	floppy_image_device *floppy = m_floppy[data & 0x03]->get_device();
 
@@ -126,7 +126,7 @@ void bml3bus_mp1802_device::device_start()
 
 void bml3bus_mp1802_device::device_reset()
 {
-	bml3_mp1802_w(0);
+	write(0);
 }
 
 void bml3bus_mp1802_device::map_exrom(address_space_installer &space)
@@ -139,5 +139,5 @@ void bml3bus_mp1802_device::map_io(address_space_installer &space)
 {
 	// install into memory
 	space.install_readwrite_handler(0xff00, 0xff03, read8sm_delegate(*m_fdc, FUNC(mb8866_device::read)), write8sm_delegate(*m_fdc, FUNC(mb8866_device::write)));
-	space.install_readwrite_handler(0xff04, 0xff04, read8smo_delegate(*this, FUNC(bml3bus_mp1802_device::bml3_mp1802_r)), write8smo_delegate(*this, FUNC(bml3bus_mp1802_device::bml3_mp1802_w)));
+	space.install_readwrite_handler(0xff04, 0xff04, read8smo_delegate(*this, FUNC(bml3bus_mp1802_device::read)), write8smo_delegate(*this, FUNC(bml3bus_mp1802_device::write)));
 }
diff --git a/src/devices/bus/bml3/mp1802.h b/src/devices/bus/bml3/mp1802.h
index ecc379261c6..adbca773f57 100644
--- a/src/devices/bus/bml3/mp1802.h
+++ b/src/devices/bus/bml3/mp1802.h
@@ -32,8 +32,8 @@ public:
 	// construction/destruction
 	bml3bus_mp1802_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
 
-	uint8_t bml3_mp1802_r();
-	void bml3_mp1802_w(uint8_t data);
+	uint8_t read();
+	void write(uint8_t data);
 
 protected:
 	virtual void device_start() override;
diff --git a/src/devices/bus/bml3/mp1805.cpp b/src/devices/bus/bml3/mp1805.cpp
index a836243cb98..b360d836044 100644
--- a/src/devices/bus/bml3/mp1805.cpp
+++ b/src/devices/bus/bml3/mp1805.cpp
@@ -66,14 +66,14 @@ const tiny_rom_entry *bml3bus_mp1805_device::device_rom_region() const
 	return ROM_NAME( mp1805 );
 }
 
-uint8_t bml3bus_mp1805_device::bml3_mp1805_r()
+uint8_t bml3bus_mp1805_device::read()
 {
 	// TODO: read supported or not?
 	//  return mc6843_drq_r(m_mc6843) ? 0x00 : 0x80;
 	return -1;
 }
 
-void bml3bus_mp1805_device::bml3_mp1805_w(uint8_t data)
+void bml3bus_mp1805_device::write(uint8_t data)
 {
 	// b7 b6 b5 b4 b3 b2 b1 b0
 	// MT ?  ?  ?  D3 D2 D1 D0
@@ -159,5 +159,5 @@ void bml3bus_mp1805_device::map_io(address_space_installer &space)
 {
 	// install into memory
 	space.install_device(0xff18, 0xff1f, *m_mc6843, &mc6843_device::map);
-	space.install_readwrite_handler(0xff20, 0xff20, read8smo_delegate(*this, FUNC(bml3bus_mp1805_device::bml3_mp1805_r)), write8smo_delegate(*this, FUNC(bml3bus_mp1805_device::bml3_mp1805_w)));
+	space.install_readwrite_handler(0xff20, 0xff20, read8smo_delegate(*this, FUNC(bml3bus_mp1805_device::read)), write8smo_delegate(*this, FUNC(bml3bus_mp1805_device::write)));
 }
diff --git a/src/devices/bus/bml3/mp1805.h b/src/devices/bus/bml3/mp1805.h
index 3dfecc0ec22..a17f6701711 100644
--- a/src/devices/bus/bml3/mp1805.h
+++ b/src/devices/bus/bml3/mp1805.h
@@ -30,8 +30,8 @@ public:
 	// construction/destruction
 	bml3bus_mp1805_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
 
-	uint8_t bml3_mp1805_r();
-	void bml3_mp1805_w(uint8_t data);
+	uint8_t read();
+	void write(uint8_t data);
 
 protected:
 	virtual void device_start() override;
diff --git a/src/devices/bus/bml3/rtc.cpp b/src/devices/bus/bml3/rtc.cpp
index 37bf5771878..eb672aaede0 100644
--- a/src/devices/bus/bml3/rtc.cpp
+++ b/src/devices/bus/bml3/rtc.cpp
@@ -35,7 +35,7 @@ void bml3bus_rtc_device::device_add_mconfig(machine_config &config)
 }
 
 
-uint8_t bml3bus_rtc_device::bml3_rtc_r(offs_t offset)
+uint8_t bml3bus_rtc_device::read(offs_t offset)
 {
 	uint8_t data = 0x00;
 
@@ -53,7 +53,7 @@ uint8_t bml3bus_rtc_device::bml3_rtc_r(offs_t offset)
 	return data | 0xf0; // return low nibble only
 }
 
-void bml3bus_rtc_device::bml3_rtc_w(offs_t offset, uint8_t data)
+void bml3bus_rtc_device::write(offs_t offset, uint8_t data)
 {
 	switch (offset)
 	{
@@ -105,5 +105,5 @@ void bml3bus_rtc_device::device_start()
 void bml3bus_rtc_device::map_io(address_space_installer &space)
 {
 	// install into memory
-	space.install_readwrite_handler(0xff38, 0xff3a, read8sm_delegate(*this, FUNC(bml3bus_rtc_device::bml3_rtc_r)), write8sm_delegate(*this, FUNC(bml3bus_rtc_device::bml3_rtc_w)));
+	space.install_readwrite_handler(0xff38, 0xff3a, read8sm_delegate(*this, FUNC(bml3bus_rtc_device::read)), write8sm_delegate(*this, FUNC(bml3bus_rtc_device::write)));
 }
diff --git a/src/devices/bus/bml3/rtc.h b/src/devices/bus/bml3/rtc.h
index 155bce0904c..0b61a51d9b7 100644
--- a/src/devices/bus/bml3/rtc.h
+++ b/src/devices/bus/bml3/rtc.h
@@ -29,8 +29,8 @@ public:
 	// construction/destruction
 	bml3bus_rtc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
 
-	uint8_t bml3_rtc_r(offs_t offset);
-	void bml3_rtc_w(offs_t offset, uint8_t data);
+	uint8_t read(offs_t offset);
+	void write(offs_t offset, uint8_t data);
 
 protected:
 	// device-level overrides