diff --git a/src/devices/bus/pc_kbd/ec1841.cpp b/src/devices/bus/pc_kbd/ec1841.cpp
index fdb8873f661..9f189e7456d 100644
--- a/src/devices/bus/pc_kbd/ec1841.cpp
+++ b/src/devices/bus/pc_kbd/ec1841.cpp
@@ -184,7 +184,7 @@ INPUT_PORTS_START( ec_1841_keyboard )
 	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&')
 	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
 	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
-	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"~ Ю") PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('~') // scancode 0x2a, Cyrillic Yu
+	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"~  Ю") PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('~') // scancode 0x2a, Cyrillic Yu
 	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5))
 	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"Keypad 2 \u2193") PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) // U+2193 = ↓
 	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
@@ -212,7 +212,7 @@ INPUT_PORTS_START( ec_1841_keyboard )
 
 	PORT_START("MD11")
 	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')')
-	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"{ Х") PORT_CODE(KEYCODE_SLASH_PAD) PORT_CHAR('{') // scancode 0x36, Cyrillic Ha
+	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"{  Х") PORT_CODE(KEYCODE_SLASH_PAD) PORT_CHAR('{') // scancode 0x36, Cyrillic Ha
 	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('\'')
 	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
 	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8))
@@ -222,7 +222,7 @@ INPUT_PORTS_START( ec_1841_keyboard )
 
 	PORT_START("MD12")
 	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_')
-	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"} Ъ") PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR('}') // scancode 0x3a, Cyrillic Hard sign
+	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"}  Ъ") PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR('}') // scancode 0x3a, Cyrillic Hard sign
 	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('"')
 	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_CHAR(UCHAR_MAMEKEY(RSHIFT)) // scancode 0x55
 	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F9) PORT_CHAR(UCHAR_MAMEKEY(F9))
@@ -242,7 +242,7 @@ INPUT_PORTS_START( ec_1841_keyboard )
 
 	PORT_START("MD14")
 	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|')
-	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("* PrtSc") PORT_CODE(KEYCODE_PRTSCR) PORT_CHAR(UCHAR_MAMEKEY(PRTSCR))
+	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("*  PrtSc") PORT_CODE(KEYCODE_PRTSCR) PORT_CHAR(UCHAR_MAMEKEY(PRTSCR))
 	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_MAMEKEY(LALT))
 	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Lat") PORT_CODE(KEYCODE_F11) PORT_CHAR(UCHAR_MAMEKEY(F11)) // scancode 0x57
 	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_NUMLOCK) PORT_CHAR(UCHAR_MAMEKEY(NUMLOCK))
diff --git a/src/devices/cpu/m6800/m6801.cpp b/src/devices/cpu/m6800/m6801.cpp
index c85f2f9ef3e..c4c57220a58 100644
--- a/src/devices/cpu/m6800/m6801.cpp
+++ b/src/devices/cpu/m6800/m6801.cpp
@@ -1516,7 +1516,7 @@ void m6801_cpu_device::p1_ddr_w(uint8_t data)
 void hd6301y_cpu_device::p1_ddr_1bit_w(uint8_t data)
 {
 	// HD6301Y DDR1 is 1-bit (HD6301X does not have DDR1)
-	hd6301_cpu_device::p1_ddr_w((BIT(data, 0) ? 0xff : 0x00));
+	hd6301_cpu_device::p1_ddr_w(BIT(data, 0) ? 0xff : 0x00);
 }
 
 uint8_t m6801_cpu_device::p1_data_r()
@@ -1641,7 +1641,7 @@ void m6801_cpu_device::p3_ddr_w(uint8_t data)
 void hd6301x_cpu_device::p3_ddr_1bit_w(uint8_t data)
 {
 	// HD6301X/Y DDR3 is 1-bit
-	hd6301_cpu_device::p3_ddr_w((BIT(data, 0) ? 0xff : 0x00));
+	hd6301_cpu_device::p3_ddr_w(BIT(data, 0) ? 0xff : 0x00);
 }
 
 uint8_t m6801_cpu_device::p3_data_r()
diff --git a/src/mame/canon/canon_s80.cpp b/src/mame/canon/canon_s80.cpp
index 5cf07c55b6a..af95b8f48c2 100644
--- a/src/mame/canon/canon_s80.cpp
+++ b/src/mame/canon/canon_s80.cpp
@@ -281,12 +281,12 @@ static INPUT_PORTS_START(canons80)
 	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('p') PORT_CHAR('P') PORT_CODE(KEYCODE_P)
 	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('0') PORT_CHAR(')') PORT_CODE(KEYCODE_0)
 	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('-') PORT_CHAR(0x2014) PORT_CODE(KEYCODE_MINUS)
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"\u2190") PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_CODE(KEYCODE_LEFT)
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"\u2190") PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_CODE(KEYCODE_LEFT) // ←
 	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key 36") PORT_CODE(KEYCODE_F7)
 	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key 31") PORT_CODE(KEYCODE_F3)
 
 	PORT_START("KEYF")
-	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"\u2192") PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_CODE(KEYCODE_RIGHT)
+	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"\u2192") PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_CODE(KEYCODE_RIGHT) // →
 	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Backspace") PORT_CHAR(0x08) PORT_CODE(KEYCODE_BACKSLASH)
 	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED)
 	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED)
diff --git a/src/mame/misc/kurukuru.cpp b/src/mame/misc/kurukuru.cpp
index 4a255cacad7..33c92289a28 100644
--- a/src/mame/misc/kurukuru.cpp
+++ b/src/mame/misc/kurukuru.cpp
@@ -764,9 +764,9 @@ static INPUT_PORTS_START( ppj )
 	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_GAMBLE_BOOK )                                                   // edge connector pin 15 top
 	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN1 )   PORT_NAME("Medal In")                                 // edge connector pin 15 bottom
 	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_MEMORY_RESET )                                                  // edge connector pin 16 top
-	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN2 )   PORT_NAME(u8"¥10 In")                        // edge connector pin 16 bottom
+	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN2 )   PORT_NAME(u8"¥10 In")                                 // edge connector pin 16 bottom
 	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED )                                                        // edge connector pin 17 top (active)
-	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_COIN3 )   PORT_NAME(u8"¥100 In") PORT_IMPULSE(2)       // edge connector pin 17 bottom
+	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_COIN3 )   PORT_NAME(u8"¥100 In") PORT_IMPULSE(2)                // edge connector pin 17 bottom
 	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_CUSTOM ) PORT_READ_LINE_DEVICE_MEMBER("hopper", ticket_dispenser_device, line_r)  // hopper feedback, edge connector pin 24 top
 	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_GAMBLE_PAYOUT )                                                 // edge connector pin 24 bottom
 
diff --git a/src/mame/skeleton/aaa.cpp b/src/mame/skeleton/aaa.cpp
index 871f2329cf2..4bdefd2c910 100644
--- a/src/mame/skeleton/aaa.cpp
+++ b/src/mame/skeleton/aaa.cpp
@@ -228,7 +228,7 @@ static INPUT_PORTS_START(aaa)
 	PORT_START("KSL15") // connector pin A
 	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE
 	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Space Bar") PORT_CHAR(' ') PORT_CODE(KEYCODE_SPACE)
-	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Tab \u2192  Tab \u2190") PORT_CHAR(0x09) PORT_CODE(KEYCODE_TAB)
+	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Tab \u2192  Tab \u2190") PORT_CHAR(0x09) PORT_CODE(KEYCODE_TAB) // Tab →  Tab ←
 	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) PORT_CODE(KEYCODE_LCONTROL)
 	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Esc") PORT_CHAR(0x1b) PORT_CODE(KEYCODE_ESC)
 	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CHAR(UCHAR_MAMEKEY(LSHIFT)) PORT_CODE(KEYCODE_LSHIFT)
diff --git a/src/mame/skeleton/gm1000.cpp b/src/mame/skeleton/gm1000.cpp
index fe64b3b9472..4e8003ac6ba 100644
--- a/src/mame/skeleton/gm1000.cpp
+++ b/src/mame/skeleton/gm1000.cpp
@@ -62,20 +62,20 @@ static INPUT_PORTS_START(gm1000)
 	// Keycode assignments are rather arbitrary and do not at all reflect the panel layout
 	PORT_START("P4")
 	PORT_BIT(0x0f, IP_ACTIVE_HIGH, IPT_UNUSED)
-	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_LEFT) PORT_NAME(u8"Parameter \u2190")
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_RIGHT) PORT_NAME(u8"Parameter \u2192")
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_DOWN) PORT_NAME(u8"Data \u2190")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_UP) PORT_NAME(u8"Data \u2192")
+	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_LEFT) PORT_NAME(u8"Parameter \u2190") // ←
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_RIGHT) PORT_NAME(u8"Parameter \u2192") // →
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_DOWN) PORT_NAME(u8"Data \u2190") // ←
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_UP) PORT_NAME(u8"Data \u2192") // →
 
 	PORT_START("P6")
 	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_BACKSPACE) PORT_NAME("All Mute")
 	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_BACKSLASH) PORT_NAME("P. Mute")
 	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_RSHIFT) PORT_NAME("P. Monitor")
 	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_ENTER) PORT_NAME("Display")
-	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_COMMA) PORT_NAME(u8"Part \u2190")
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_STOP) PORT_NAME(u8"Part \u2192")
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_OPENBRACE) PORT_NAME(u8"Instrument \u2190")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_NAME(u8"Instrument \u2192")
+	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_COMMA) PORT_NAME(u8"Part \u2190") // ←
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_STOP) PORT_NAME(u8"Part \u2192") // →
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_OPENBRACE) PORT_NAME(u8"Instrument \u2190") // ←
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_NAME(u8"Instrument \u2192") // →
 INPUT_PORTS_END
 
 void gm1000_state::gm1000(machine_config &config)
diff --git a/src/mame/taito/pc080sn.cpp b/src/mame/taito/pc080sn.cpp
index bc94abf85b5..38fca5791b7 100644
--- a/src/mame/taito/pc080sn.cpp
+++ b/src/mame/taito/pc080sn.cpp
@@ -54,7 +54,12 @@ DEFINE_DEVICE_TYPE(PC080SN, pc080sn_device, "pc080sn", "Taito PC080SN")
 pc080sn_device::pc080sn_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
 	: device_t(mconfig, PC080SN, tag, owner, clock)
 	, device_gfx_interface(mconfig, *this)
-	, m_ram(nullptr)
+	, m_ram()
+	, m_bg_ram{ nullptr, nullptr }
+	, m_bgscroll_ram{ nullptr, nullptr }
+	, m_bgscrollx{ 0, 0 }
+	, m_bgscrolly{ 0, 0 }
+	, m_tilemap{ nullptr, nullptr }
 	, m_x_offset(0)
 	, m_y_offset(0)
 	, m_y_invert(0)
@@ -62,14 +67,6 @@ pc080sn_device::pc080sn_device(const machine_config &mconfig, const char *tag, d
 {
 	for (auto & elem : m_ctrl)
 		elem = 0;
-
-	for (int i = 0; i < 2; i++)
-	{
-		m_bg_ram[i] = nullptr;
-		m_bgscroll_ram[i] = nullptr;
-		m_bgscrollx[i] = 0;
-		m_bgscrolly[i] = 0;
-	}
 }
 
 //-------------------------------------------------
@@ -81,13 +78,13 @@ void pc080sn_device::device_start()
 	/* use the given gfx set for bg tiles */
 	if (!m_dblwidth) /* standard tilemaps */
 	{
-		m_tilemap[0] = &machine().tilemap().create(*this, tilemap_get_info_delegate(*this, FUNC(pc080sn_device::get_bg_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 64, 64);
-		m_tilemap[1] = &machine().tilemap().create(*this, tilemap_get_info_delegate(*this, FUNC(pc080sn_device::get_fg_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 64, 64);
+		m_tilemap[0] = &machine().tilemap().create(*this, tilemap_get_info_delegate(*this, FUNC(pc080sn_device::get_tile_info<0>)), TILEMAP_SCAN_ROWS, 8, 8, 64, 64);
+		m_tilemap[1] = &machine().tilemap().create(*this, tilemap_get_info_delegate(*this, FUNC(pc080sn_device::get_tile_info<1>)), TILEMAP_SCAN_ROWS, 8, 8, 64, 64);
 	}
 	else    /* double width tilemaps */
 	{
-		m_tilemap[0] = &machine().tilemap().create(*this, tilemap_get_info_delegate(*this, FUNC(pc080sn_device::get_bg_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 128, 64);
-		m_tilemap[1] = &machine().tilemap().create(*this, tilemap_get_info_delegate(*this, FUNC(pc080sn_device::get_fg_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 128, 64);
+		m_tilemap[0] = &machine().tilemap().create(*this, tilemap_get_info_delegate(*this, FUNC(pc080sn_device::get_tile_info<0>)), TILEMAP_SCAN_ROWS, 8, 8, 128, 64);
+		m_tilemap[1] = &machine().tilemap().create(*this, tilemap_get_info_delegate(*this, FUNC(pc080sn_device::get_tile_info<1>)), TILEMAP_SCAN_ROWS, 8, 8, 128, 64);
 	}
 
 	m_tilemap[0]->set_transparent_pen(0);
@@ -128,19 +125,20 @@ void pc080sn_device::device_post_load()
     DEVICE HANDLERS
 *****************************************************************************/
 
-void pc080sn_device::common_get_tile_info(tile_data &tileinfo, int tile_index, u16 *ram)
+template <unsigned N>
+TILE_GET_INFO_MEMBER(pc080sn_device::get_tile_info)
 {
 	u16 code, attr;
 
 	if (!m_dblwidth)
 	{
-		code = (ram[2 * tile_index + 1] & 0x3fff);
-		attr = ram[2 * tile_index];
+		code = m_bg_ram[N][2 * tile_index + 1] & 0x3fff;
+		attr = m_bg_ram[N][2 * tile_index];
 	}
 	else
 	{
-		code = (ram[tile_index + 0x2000] & 0x3fff);
-		attr = ram[tile_index];
+		code = m_bg_ram[N][tile_index + 0x2000] & 0x3fff;
+		attr = m_bg_ram[N][tile_index];
 	}
 
 	tileinfo.set(0,
@@ -149,16 +147,6 @@ void pc080sn_device::common_get_tile_info(tile_data &tileinfo, int tile_index, u
 			TILE_FLIPYX((attr & 0xc000) >> 14));
 }
 
-TILE_GET_INFO_MEMBER(pc080sn_device::get_bg_tile_info)
-{
-	common_get_tile_info(tileinfo, tile_index, m_bg_ram[0]);
-}
-
-TILE_GET_INFO_MEMBER(pc080sn_device::get_fg_tile_info)
-{
-	common_get_tile_info(tileinfo, tile_index, m_bg_ram[1]);
-}
-
 u16 pc080sn_device::word_r(offs_t offset)
 {
 	return m_ram[offset];
diff --git a/src/mame/taito/pc080sn.h b/src/mame/taito/pc080sn.h
index 75836d328de..ec3c56f956c 100644
--- a/src/mame/taito/pc080sn.h
+++ b/src/mame/taito/pc080sn.h
@@ -34,11 +34,6 @@ public:
 	void yscroll_word_w(offs_t offset, u16 data, u16 mem_mask = ~0);
 	void ctrl_word_w(offs_t offset, u16 data, u16 mem_mask = ~0);
 
-	TILE_GET_INFO_MEMBER(get_bg_tile_info);
-	TILE_GET_INFO_MEMBER(get_fg_tile_info);
-
-	void common_get_tile_info(tile_data &tileinfo, int tile_index, u16 *ram);
-
 	void set_scroll(int tilemap_num, int scrollx, int scrolly);
 	void set_trans_pen(int tilemap_num, int pen);
 	void tilemap_update();
@@ -57,12 +52,15 @@ protected:
 	virtual void device_post_load() override;
 
 private:
+	template <unsigned N>
+	TILE_GET_INFO_MEMBER(get_tile_info);
+
 	// internal state
-	u16         m_ctrl[8];
+	u16            m_ctrl[8];
 
 	std::unique_ptr<u16[]>         m_ram;
-	u16         *m_bg_ram[2];
-	u16         *m_bgscroll_ram[2];
+	u16            *m_bg_ram[2];
+	u16            *m_bgscroll_ram[2];
 
 	int            m_bgscrollx[2], m_bgscrolly[2];
 
diff --git a/src/mame/televideo/tv910.cpp b/src/mame/televideo/tv910.cpp
index 0429525c1f9..e4f875abbce 100644
--- a/src/mame/televideo/tv910.cpp
+++ b/src/mame/televideo/tv910.cpp
@@ -303,7 +303,7 @@ static INPUT_PORTS_START( tv910 )
 	PORT_START("X5")
 	PORT_BIT(0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PRTSCR)    PORT_CHAR(UCHAR_MAMEKEY(PRTSCR))
 	PORT_BIT(0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_L)          PORT_CHAR('l') PORT_CHAR('L')
-	PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2190")         PORT_CODE(KEYCODE_LEFT)
+	PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2190")         PORT_CODE(KEYCODE_LEFT) // ←
 	PORT_BIT(0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON)      PORT_CHAR(';') PORT_CHAR(':')
 	PORT_BIT(0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH)      PORT_CHAR('/') PORT_CHAR('?')
 	PORT_BIT(0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER_PAD)  PORT_CHAR(UCHAR_MAMEKEY(ENTER_PAD))
@@ -323,11 +323,11 @@ static INPUT_PORTS_START( tv910 )
 	PORT_BIT(0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F18)       PORT_CHAR(UCHAR_MAMEKEY(F18))
 
 	PORT_START("X7")
-	PORT_BIT(0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2192")         PORT_CODE(KEYCODE_RIGHT)
+	PORT_BIT(0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2192")         PORT_CODE(KEYCODE_RIGHT) // →
 	PORT_BIT(0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z)          PORT_CHAR('z') PORT_CHAR('Z')
-	PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2191")         PORT_CODE(KEYCODE_UP)
+	PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2191")         PORT_CODE(KEYCODE_UP) // ↑
 /// 008 - CLRSP
-	PORT_BIT(0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2193")         PORT_CODE(KEYCODE_DOWN)     PORT_CHAR(10)      // E0 47
+	PORT_BIT(0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2193")         PORT_CODE(KEYCODE_DOWN)     PORT_CHAR(10)      // ↓  E0 47
 	PORT_BIT(0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('{') PORT_CHAR('}')
 
 	PORT_START("X8")
diff --git a/src/mame/televideo/tv950kb.cpp b/src/mame/televideo/tv950kb.cpp
index 3b48fe90b13..ab4dfac0a86 100644
--- a/src/mame/televideo/tv950kb.cpp
+++ b/src/mame/televideo/tv950kb.cpp
@@ -66,136 +66,136 @@ void tv950kb_device::device_add_mconfig(machine_config &config)
 
 static INPUT_PORTS_START(tv950kb)
 	PORT_START("ROW0")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('1') PORT_CHAR('!') PORT_CODE(KEYCODE_1)
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('2') PORT_CHAR('@') PORT_CODE(KEYCODE_2)
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('3') PORT_CHAR('#') PORT_CODE(KEYCODE_3)
-	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('4') PORT_CHAR('$') PORT_CODE(KEYCODE_4)
-	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('5') PORT_CHAR('%') PORT_CODE(KEYCODE_5)
-	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('6') PORT_CHAR('^') PORT_CODE(KEYCODE_6)
-	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('7') PORT_CHAR('&') PORT_CODE(KEYCODE_7)
-	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('8') PORT_CHAR('*') PORT_CODE(KEYCODE_8)
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('1') PORT_CHAR('!')       PORT_CODE(KEYCODE_1)
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('2') PORT_CHAR('@')       PORT_CODE(KEYCODE_2)
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('3') PORT_CHAR('#')       PORT_CODE(KEYCODE_3)
+	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('4') PORT_CHAR('$')       PORT_CODE(KEYCODE_4)
+	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('5') PORT_CHAR('%')       PORT_CODE(KEYCODE_5)
+	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('6') PORT_CHAR('^')       PORT_CODE(KEYCODE_6)
+	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('7') PORT_CHAR('&')       PORT_CODE(KEYCODE_7)
+	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('8') PORT_CHAR('*')       PORT_CODE(KEYCODE_8)
 
 	PORT_START("ROW1")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('9') PORT_CHAR('(') PORT_CODE(KEYCODE_9)
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('0') PORT_CHAR(')') PORT_CODE(KEYCODE_0)
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F7  Ins Ch") PORT_CHAR(UCHAR_MAMEKEY(F7)) PORT_CODE(KEYCODE_F12) // "Char Insert" according to operator's manual
-	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F8  Del Ch") PORT_CHAR(UCHAR_MAMEKEY(F8)) PORT_CODE(KEYCODE_F13) // "Char Delete" according to operator's manual
-	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Loc  Ins Ln") PORT_CODE(KEYCODE_F14) // "Line Insert" according to operator's manual
-	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Msg  Del Ln") PORT_CODE(KEYCODE_F15) // "Line Delete" according to operator's manual
-	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('-') PORT_CHAR('_') PORT_CODE(KEYCODE_MINUS)
-	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('=') PORT_CHAR('+') PORT_CODE(KEYCODE_EQUALS)
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('9') PORT_CHAR('(')       PORT_CODE(KEYCODE_9)
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('0') PORT_CHAR(')')       PORT_CODE(KEYCODE_0)
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F7  Ins Ch")       PORT_CHAR(UCHAR_MAMEKEY(F7))        PORT_CODE(KEYCODE_F12) // "Char Insert" according to operator's manual
+	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F8  Del Ch")       PORT_CHAR(UCHAR_MAMEKEY(F8))        PORT_CODE(KEYCODE_F13) // "Char Delete" according to operator's manual
+	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Loc  Ins Ln")                                          PORT_CODE(KEYCODE_F14) // "Line Insert" according to operator's manual
+	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Msg  Del Ln")                                          PORT_CODE(KEYCODE_F15) // "Line Delete" according to operator's manual
+	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('-') PORT_CHAR('_')       PORT_CODE(KEYCODE_MINUS)
+	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('=') PORT_CHAR('+')       PORT_CODE(KEYCODE_EQUALS)
 
 	PORT_START("ROW2")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('`') PORT_CHAR('~') PORT_CODE(KEYCODE_TILDE)
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('\\') PORT_CHAR('|') PORT_CODE(KEYCODE_BACKSLASH)
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Back Space") PORT_CHAR(0x08) PORT_CODE(KEYCODE_BACKSPACE)
-	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(0x09) PORT_CODE(KEYCODE_TAB)
-	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('q') PORT_CHAR('Q') PORT_CODE(KEYCODE_Q)
-	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('w') PORT_CHAR('W') PORT_CODE(KEYCODE_W)
-	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('e') PORT_CHAR('E') PORT_CODE(KEYCODE_E)
-	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('r') PORT_CHAR('R') PORT_CODE(KEYCODE_R)
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('`') PORT_CHAR('~')       PORT_CODE(KEYCODE_TILDE)
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('\\') PORT_CHAR('|')      PORT_CODE(KEYCODE_BACKSLASH)
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Back Space")       PORT_CHAR(0x08)                     PORT_CODE(KEYCODE_BACKSPACE)
+	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(0x09)                     PORT_CODE(KEYCODE_TAB)
+	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('q') PORT_CHAR('Q')       PORT_CODE(KEYCODE_Q)
+	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('w') PORT_CHAR('W')       PORT_CODE(KEYCODE_W)
+	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('e') PORT_CHAR('E')       PORT_CODE(KEYCODE_E)
+	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('r') PORT_CHAR('R')       PORT_CODE(KEYCODE_R)
 
 	PORT_START("ROW3")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('t') PORT_CHAR('T') PORT_CODE(KEYCODE_T)
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('y') PORT_CHAR('Y') PORT_CODE(KEYCODE_Y)
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('u') PORT_CHAR('U') PORT_CODE(KEYCODE_U)
-	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('i') PORT_CHAR('I') PORT_CODE(KEYCODE_I)
-	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('o') PORT_CHAR('O') PORT_CODE(KEYCODE_O)
-	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('p') PORT_CHAR('P') PORT_CODE(KEYCODE_P)
-	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('[') PORT_CHAR(']') PORT_CODE(KEYCODE_OPENBRACE)
-	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Line Feed") PORT_CHAR(0x0a)
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('t') PORT_CHAR('T')       PORT_CODE(KEYCODE_T)
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('y') PORT_CHAR('Y')       PORT_CODE(KEYCODE_Y)
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('u') PORT_CHAR('U')       PORT_CODE(KEYCODE_U)
+	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('i') PORT_CHAR('I')       PORT_CODE(KEYCODE_I)
+	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('o') PORT_CHAR('O')       PORT_CODE(KEYCODE_O)
+	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('p') PORT_CHAR('P')       PORT_CODE(KEYCODE_P)
+	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('[') PORT_CHAR(']')       PORT_CODE(KEYCODE_OPENBRACE)
+	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Line Feed")        PORT_CHAR(0x0a)
 
 	PORT_START("ROW4")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('a') PORT_CHAR('A') PORT_CODE(KEYCODE_A)
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('s') PORT_CHAR('S') PORT_CODE(KEYCODE_S)
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('d') PORT_CHAR('D') PORT_CODE(KEYCODE_D)
-	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('f') PORT_CHAR('F') PORT_CODE(KEYCODE_F)
-	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('g') PORT_CHAR('G') PORT_CODE(KEYCODE_G)
-	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('h') PORT_CHAR('H') PORT_CODE(KEYCODE_H)
-	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('j') PORT_CHAR('J') PORT_CODE(KEYCODE_J)
-	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('k') PORT_CHAR('K') PORT_CODE(KEYCODE_K)
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('a') PORT_CHAR('A')       PORT_CODE(KEYCODE_A)
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('s') PORT_CHAR('S')       PORT_CODE(KEYCODE_S)
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('d') PORT_CHAR('D')       PORT_CODE(KEYCODE_D)
+	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('f') PORT_CHAR('F')       PORT_CODE(KEYCODE_F)
+	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('g') PORT_CHAR('G')       PORT_CODE(KEYCODE_G)
+	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('h') PORT_CHAR('H')       PORT_CODE(KEYCODE_H)
+	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('j') PORT_CHAR('J')       PORT_CODE(KEYCODE_J)
+	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('k') PORT_CHAR('K')       PORT_CODE(KEYCODE_K)
 
 	PORT_START("ROW5")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('l') PORT_CHAR('L') PORT_CODE(KEYCODE_L)
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(';') PORT_CHAR(':') PORT_CODE(KEYCODE_COLON)
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('\'') PORT_CHAR('"') PORT_CODE(KEYCODE_QUOTE)
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('l') PORT_CHAR('L')       PORT_CODE(KEYCODE_L)
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(';') PORT_CHAR(':')       PORT_CODE(KEYCODE_COLON)
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('\'') PORT_CHAR('"')      PORT_CODE(KEYCODE_QUOTE)
 	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Back Tab") // below Ctrl
-	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('z') PORT_CHAR('Z') PORT_CODE(KEYCODE_Z)
-	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('x') PORT_CHAR('X') PORT_CODE(KEYCODE_X)
-	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('c') PORT_CHAR('C') PORT_CODE(KEYCODE_C)
-	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('v') PORT_CHAR('V') PORT_CODE(KEYCODE_V)
+	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('z') PORT_CHAR('Z')       PORT_CODE(KEYCODE_Z)
+	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('x') PORT_CHAR('X')       PORT_CODE(KEYCODE_X)
+	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('c') PORT_CHAR('C')       PORT_CODE(KEYCODE_C)
+	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('v') PORT_CHAR('V')       PORT_CODE(KEYCODE_V)
 
 	PORT_START("ROW6")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('b') PORT_CHAR('B') PORT_CODE(KEYCODE_B)
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('n') PORT_CHAR('N') PORT_CODE(KEYCODE_N)
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('m') PORT_CHAR('M') PORT_CODE(KEYCODE_M)
-	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(',') PORT_CHAR('<') PORT_CODE(KEYCODE_COMMA)
-	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('.') PORT_CHAR('>') PORT_CODE(KEYCODE_STOP)
-	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('/') PORT_CHAR('?') PORT_CODE(KEYCODE_SLASH)
-	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('{') PORT_CHAR('}') PORT_CODE(KEYCODE_CLOSEBRACE) // to right of Shift
-	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(DEL)) PORT_CODE(KEYCODE_DEL)
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('b') PORT_CHAR('B')       PORT_CODE(KEYCODE_B)
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('n') PORT_CHAR('N')       PORT_CODE(KEYCODE_N)
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('m') PORT_CHAR('M')       PORT_CODE(KEYCODE_M)
+	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(',') PORT_CHAR('<')       PORT_CODE(KEYCODE_COMMA)
+	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('.') PORT_CHAR('>')       PORT_CODE(KEYCODE_STOP)
+	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('/') PORT_CHAR('?')       PORT_CODE(KEYCODE_SLASH)
+	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR('{') PORT_CHAR('}')       PORT_CODE(KEYCODE_CLOSEBRACE) // to right of Shift
+	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(DEL))       PORT_CODE(KEYCODE_DEL)
 
 	PORT_START("ROW7")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(' ') PORT_CODE(KEYCODE_SPACE)
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_CODE(KEYCODE_DOWN)
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_CODE(KEYCODE_UP)
-	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_CODE(KEYCODE_LEFT)
-	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_CODE(KEYCODE_RIGHT)
-	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD)) PORT_CODE(KEYCODE_7_PAD)
-	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD)) PORT_CODE(KEYCODE_8_PAD)
-	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD)) PORT_CODE(KEYCODE_9_PAD)
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(' ')                      PORT_CODE(KEYCODE_SPACE)
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(DOWN))      PORT_CODE(KEYCODE_DOWN)
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(UP))        PORT_CODE(KEYCODE_UP)
+	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(LEFT))      PORT_CODE(KEYCODE_LEFT)
+	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(RIGHT))     PORT_CODE(KEYCODE_RIGHT)
+	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(7_PAD))     PORT_CODE(KEYCODE_7_PAD)
+	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(8_PAD))     PORT_CODE(KEYCODE_8_PAD)
+	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(9_PAD))     PORT_CODE(KEYCODE_9_PAD)
 
 	PORT_START("ROW8")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD)) PORT_CODE(KEYCODE_4_PAD)
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD)) PORT_CODE(KEYCODE_5_PAD)
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD)) PORT_CODE(KEYCODE_6_PAD)
-	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD)) PORT_CODE(KEYCODE_1_PAD)
-	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) PORT_CODE(KEYCODE_2_PAD)
-	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD)) PORT_CODE(KEYCODE_3_PAD)
-	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(COMMA_PAD)) PORT_CODE(KEYCODE_COMMA_PAD)
-	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD)) PORT_CODE(KEYCODE_0_PAD)
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(4_PAD))     PORT_CODE(KEYCODE_4_PAD)
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(5_PAD))     PORT_CODE(KEYCODE_5_PAD)
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(6_PAD))     PORT_CODE(KEYCODE_6_PAD)
+	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(1_PAD))     PORT_CODE(KEYCODE_1_PAD)
+	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(2_PAD))     PORT_CODE(KEYCODE_2_PAD)
+	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(3_PAD))     PORT_CODE(KEYCODE_3_PAD)
+	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(COMMA_PAD)) PORT_CODE(KEYCODE_COMMA_PAD)
+	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(0_PAD))     PORT_CODE(KEYCODE_0_PAD)
 
 	PORT_START("ROW9")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(DEL_PAD)) PORT_CODE(KEYCODE_DEL_PAD)
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(DEL_PAD))   PORT_CODE(KEYCODE_DEL_PAD)
 	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Keypad _") // on lowest row of keypad
 	PORT_BIT(0x3f, IP_ACTIVE_LOW, IPT_UNUSED)
 
 	PORT_START("ROW10")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Esc  Loc Esc") PORT_CHAR(0x1b) PORT_CODE(KEYCODE_ESC)
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Esc  Loc Esc")     PORT_CHAR(0x1b)                     PORT_CODE(KEYCODE_ESC)
 	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Cmd Line") // above KP 7; "Line Erase" according to operator's manual
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Start") // above KP 8; "Page Erase" according to operator's manual
-	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Step") // above KP 9; "Send" according to operator's manual
-	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Home") PORT_CHAR(UCHAR_MAMEKEY(HOME)) PORT_CODE(KEYCODE_RALT)
-	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Return") PORT_CHAR(0x0d) PORT_CODE(KEYCODE_ENTER)
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Start")    // above KP 8; "Page Erase" according to operator's manual
+	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Step")     // above KP 9; "Send" according to operator's manual
+	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Home")             PORT_CHAR(UCHAR_MAMEKEY(HOME))      PORT_CODE(KEYCODE_RALT)
+	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Return")           PORT_CHAR(0x0d)                     PORT_CODE(KEYCODE_ENTER)
 	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Field Select") // below Back Space; "Clear Space" according to operator's manual
-	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(ENTER_PAD)) PORT_CODE(KEYCODE_ENTER_PAD) // keypad lower left corner
+	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(ENTER_PAD)) PORT_CODE(KEYCODE_ENTER_PAD) // keypad lower left corner
 
 	PORT_START("ROW11")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"Help  \u2190Wd") PORT_CODE(KEYCODE_F1) // "F1" according to operator's manual
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"Top Menu  \u2192Wd") PORT_CODE(KEYCODE_F2) // "F2" according to operator's manual
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"Move  \u2191Scroll") PORT_CODE(KEYCODE_F3) // "F3" according to operator's manual
-	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"  \u2193Scroll") PORT_CODE(KEYCODE_F4) // "F4" according to operator's manual
-	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"F1  \u2191Scrn") PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_CODE(KEYCODE_F5) // "F5" according to operator's manual
-	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"F2  \u2193Scrn") PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_CODE(KEYCODE_F6) // "F6" according to operator's manual
-	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F3  Del Wo") PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_CODE(KEYCODE_F7) // "F7" according to operator's manual
-	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_CODE(KEYCODE_F8) // "F8" according to operator's manual
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"Help  \u2190Wd")                                     PORT_CODE(KEYCODE_F1)  // ←Wd "F1" according to operator's manual
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"Top Menu  \u2192Wd")                                 PORT_CODE(KEYCODE_F2)  // →Wd "F2" according to operator's manual
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"Move  \u2191Scroll")                                 PORT_CODE(KEYCODE_F3)  // ↑Scroll "F3" according to operator's manual
+	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"  \u2193Scroll")                                     PORT_CODE(KEYCODE_F4)  // ↓Scroll "F4" according to operator's manual
+	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"F1  \u2191Scrn") PORT_CHAR(UCHAR_MAMEKEY(F1))        PORT_CODE(KEYCODE_F5)  // ↑Scrn "F5" according to operator's manual
+	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"F2  \u2193Scrn") PORT_CHAR(UCHAR_MAMEKEY(F2))        PORT_CODE(KEYCODE_F6)  // ↓Scrn "F6" according to operator's manual
+	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F3  Del Wo")       PORT_CHAR(UCHAR_MAMEKEY(F3))        PORT_CODE(KEYCODE_F7)  // "F7" according to operator's manual
+	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD)                               PORT_CHAR(UCHAR_MAMEKEY(F4))        PORT_CODE(KEYCODE_F8)  // "F8" according to operator's manual
 
 	PORT_START("ROW12")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Blank key") PORT_CODE(KEYCODE_F9) // "F9" according to operator's manual
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F5  EOF") PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_CODE(KEYCODE_F10) // "F10" according to operator's manual
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F6  BOF") PORT_CHAR(UCHAR_MAMEKEY(F6)) PORT_CODE(KEYCODE_F11) // "F11" according to operator's manual
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Blank key")                                            PORT_CODE(KEYCODE_F9)  // "F9" according to operator's manual
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F5  EOF")          PORT_CHAR(UCHAR_MAMEKEY(F5))        PORT_CODE(KEYCODE_F10) // "F10" according to operator's manual
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F6  BOF")          PORT_CHAR(UCHAR_MAMEKEY(F6))        PORT_CODE(KEYCODE_F11) // "F11" according to operator's manual
 	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("No Scroll  Set Up") // top left corner
 	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Print") // to left of Funct
 	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Break") // above Del
 	PORT_BIT(0x03, IP_ACTIVE_LOW, IPT_UNUSED)
 
 	PORT_START("CTRL")
-	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CHAR(UCHAR_SHIFT_2) PORT_CODE(KEYCODE_LCONTROL)
-	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CHAR(UCHAR_SHIFT_1) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT)
+	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Ctrl")             PORT_CHAR(UCHAR_SHIFT_2)            PORT_CODE(KEYCODE_LCONTROL)
+	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Shift")            PORT_CHAR(UCHAR_SHIFT_1)            PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT)
 
 	PORT_START("FUNCT")
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Funct") PORT_CHAR(UCHAR_MAMEKEY(LALT)) PORT_CODE(KEYCODE_LALT)
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Alpha Lock") PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Funct")            PORT_CHAR(UCHAR_MAMEKEY(LALT))      PORT_CODE(KEYCODE_LALT)
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Alpha Lock")       PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK))  PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE
 	PORT_BIT(0x9f, IP_ACTIVE_LOW, IPT_UNUSED)
 INPUT_PORTS_END
 
diff --git a/src/mame/tomy/tutor.cpp b/src/mame/tomy/tutor.cpp
index b656405fd2f..37497998a1d 100644
--- a/src/mame/tomy/tutor.cpp
+++ b/src/mame/tomy/tutor.cpp
@@ -740,10 +740,10 @@ static INPUT_PORTS_START(pyuutajr)
 		PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED)
 		PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Left") PORT_CODE(KEYCODE_COMMA)
 		PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Right") PORT_CODE(KEYCODE_STOP)
-		PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2190") PORT_CODE(KEYCODE_LEFT)
-		PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2191") PORT_CODE(KEYCODE_UP)
-		PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2193") PORT_CODE(KEYCODE_DOWN)
-		PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2192") PORT_CODE(KEYCODE_RIGHT)
+		PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2190") PORT_CODE(KEYCODE_LEFT)  // ←
+		PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2191") PORT_CODE(KEYCODE_UP)    // ↑
+		PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2193") PORT_CODE(KEYCODE_DOWN)  // ↓
+		PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(u8"\u2192") PORT_CODE(KEYCODE_RIGHT) // →
 
 	PORT_START("LINE3")
 		PORT_BIT(0xff, IP_ACTIVE_HIGH, IPT_UNUSED)
diff --git a/src/mame/vtech/crvision.cpp b/src/mame/vtech/crvision.cpp
index 1f5ef2b1542..123fd91a92b 100644
--- a/src/mame/vtech/crvision.cpp
+++ b/src/mame/vtech/crvision.cpp
@@ -428,7 +428,7 @@ static INPUT_PORTS_START( manager )
 	PORT_START("Y.1")
 	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
 	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
-	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"Ä ä") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(U'Ä') PORT_CHAR(U'ä') PORT_CHAR(UCHAR_MAMEKEY(LEFT))
+	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"Ä  ä") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(U'Ä') PORT_CHAR(U'ä') PORT_CHAR(UCHAR_MAMEKEY(LEFT))
 	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR(';') PORT_CHAR('+')
 	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') PORT_CHAR('@')
 	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_CHAR('w')
@@ -439,7 +439,7 @@ static INPUT_PORTS_START( manager )
 	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED) // I
 	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
 	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
-	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"Å å") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(U'Å') PORT_CHAR(U'å') PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
+	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"Å  å") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(U'Å') PORT_CHAR(U'å') PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
 	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
 	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_CHAR('q')
 	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
@@ -448,7 +448,7 @@ static INPUT_PORTS_START( manager )
 	PORT_START("Y.3")
 	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED) // N
 	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED) // X
-	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"Ö ö") PORT_CODE(KEYCODE_COLON) PORT_CHAR(U'Ö') PORT_CHAR(U'ö') PORT_CHAR(UCHAR_MAMEKEY(DOWN))
+	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"Ö  ö") PORT_CODE(KEYCODE_COLON) PORT_CHAR(U'Ö') PORT_CHAR(U'ö') PORT_CHAR(UCHAR_MAMEKEY(DOWN))
 	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR(':') PORT_CHAR('*')
 	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
 	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_CHAR('r')
diff --git a/src/mame/wyse/wy50kb.cpp b/src/mame/wyse/wy50kb.cpp
index b1952b18e43..00a71e574ad 100644
--- a/src/mame/wyse/wy50kb.cpp
+++ b/src/mame/wyse/wy50kb.cpp
@@ -202,11 +202,11 @@ static INPUT_PORTS_START(wy100kb)
 
 	PORT_START("COL1")
 	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('y') PORT_CHAR('Y') PORT_CODE(KEYCODE_Y)
-	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"Scrl \u2191") PORT_CHAR(UCHAR_MAMEKEY(PGUP)) PORT_CODE(KEYCODE_PGUP) // F6
+	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"Scrl \u2191") PORT_CHAR(UCHAR_MAMEKEY(PGUP)) PORT_CODE(KEYCODE_PGUP) // Scrl ↑  F6
 	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_CODE(KEYCODE_RIGHT) // 0C
 	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('7') PORT_CHAR('&') PORT_CODE(KEYCODE_7)
 	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Page") // E8 shifted, CB unshifted
-	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"Scrl \u2193") PORT_CHAR(UCHAR_MAMEKEY(PGDN)) PORT_CODE(KEYCODE_PGDN) // F7
+	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"Scrl \u2193") PORT_CHAR(UCHAR_MAMEKEY(PGDN)) PORT_CODE(KEYCODE_PGDN) // Scrl ↓  F7
 	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('m') PORT_CHAR('M') PORT_CODE(KEYCODE_M)
 	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('g') PORT_CHAR('G') PORT_CODE(KEYCODE_G)
 
diff --git a/src/mame/yamaha/ymtx81z.cpp b/src/mame/yamaha/ymtx81z.cpp
index 0c46fa4c0b7..3b06791d7ee 100644
--- a/src/mame/yamaha/ymtx81z.cpp
+++ b/src/mame/yamaha/ymtx81z.cpp
@@ -97,8 +97,8 @@ static INPUT_PORTS_START(tx81z)
 	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) // actually MIDI In data
 	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED)
 	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_NAME("Cursor")
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_VOLUME_UP) PORT_NAME(u8"Master Volume \u2192")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_VOLUME_DOWN) PORT_NAME(u8"Master Volume \u2190")
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_VOLUME_UP) PORT_NAME(u8"Master Volume \u2192") // →
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_VOLUME_DOWN) PORT_NAME(u8"Master Volume \u2190") // ←
 
 	PORT_START("P5")
 	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) // actually INT1 from YM2414
@@ -107,8 +107,8 @@ static INPUT_PORTS_START(tx81z)
 	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED)
 	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON2) PORT_NAME("Data Entry Inc")
 	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_BUTTON3) PORT_NAME("Data Entry Dec")
-	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_BUTTON4) PORT_NAME(u8"Voice Parameter \u2192")
-	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_BUTTON5) PORT_NAME(u8"Voice Parameter \u2190")
+	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_BUTTON4) PORT_NAME(u8"Voice Parameter \u2192") // →
+	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_BUTTON5) PORT_NAME(u8"Voice Parameter \u2190") // ←
 
 	PORT_START("P6")
 	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_BUTTON6) PORT_NAME("Play/Perform")