diff --git a/hash/msx1_cart.xml b/hash/msx1_cart.xml
index e0e10637501..932070b5aad 100644
--- a/hash/msx1_cart.xml
+++ b/hash/msx1_cart.xml
@@ -666,15 +666,15 @@ Xyzolog - Electric Software
 		</part>
 	</software>
 
-	<!-- Does not seem to work at the moment -->
-	<software name="msxwritj" supported="no">
+	<!-- Code seems to work but it does not display text -->
+	<software name="msxwritj" supported="partial">
 		<description>Japanese MSX-Write (Jpn)</description>
 		<year>1986</year>
 		<publisher>ASCII</publisher>
 		<info name="alt_title" value="日本語MSX-Write" />
 		<part name="cart" interface="msx_cart">
 			<feature name="pcb" value="MSX WRITE 900178B" />
-			<feature name="slot" value="ascii8" />
+			<feature name="slot" value="msxwrite" />
 			<feature name="mapper" value="M60002-0125SP" />
 			<dataarea name="rom" size="524288">
 				<rom name="225 aa 8716 zoo" size="524288" crc="ef02e4f3" sha1="4180544158a57c99162269e33e4f2c77c9fce84e" offset="0" />
diff --git a/src/emu/bus/msx_cart/ascii.c b/src/emu/bus/msx_cart/ascii.c
index 7b911794eea..c4b21fa8f86 100644
--- a/src/emu/bus/msx_cart/ascii.c
+++ b/src/emu/bus/msx_cart/ascii.c
@@ -8,6 +8,7 @@ const device_type MSX_CART_ASCII8 = &device_creator<msx_cart_ascii8>;
 const device_type MSX_CART_ASCII16 = &device_creator<msx_cart_ascii16>;
 const device_type MSX_CART_ASCII8_SRAM = &device_creator<msx_cart_ascii8_sram>;
 const device_type MSX_CART_ASCII16_SRAM = &device_creator<msx_cart_ascii16_sram>;
+const device_type MSX_CART_MSXWRITE = &device_creator<msx_cart_msxwrite>;
 
 
 msx_cart_ascii8::msx_cart_ascii8(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
@@ -441,3 +442,95 @@ WRITE8_MEMBER(msx_cart_ascii16_sram::write_cart)
 		}
 	}
 }
+
+
+
+msx_cart_msxwrite::msx_cart_msxwrite(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+	: device_t(mconfig, MSX_CART_MSXWRITE, "MSX Cartridge - MSXWRITE", tag, owner, clock, "msx_cart_msxwrite", __FILE__)
+	, msx_cart_interface(mconfig, *this)
+	, m_bank_mask(0)
+{
+	for (int i = 0; i < 2; i++)
+	{
+		m_selected_bank[i] = 0;
+		m_bank_base[i] = NULL;
+	}
+}
+
+
+void msx_cart_msxwrite::device_start()
+{
+	save_item(NAME(m_selected_bank));
+
+	machine().save().register_postload(save_prepost_delegate(FUNC(msx_cart_msxwrite::restore_banks), this));
+}
+
+
+void msx_cart_msxwrite::restore_banks()
+{
+	for (int i = 0; i < 2; i++)
+	{
+		m_bank_base[i] = get_rom_base() + (m_selected_bank[i] & m_bank_mask) * 0x4000;
+	}
+}
+
+
+void msx_cart_msxwrite::device_reset()
+{
+	for (int i = 0; i < 2; i++)
+	{
+		m_selected_bank[i] = 0;
+	}
+}
+
+
+void msx_cart_msxwrite::initialize_cartridge()
+{
+	UINT32 size = get_rom_size();
+
+	if ( size > 256 * 0x4000 )
+	{
+		fatalerror("msxwrite: ROM is too big\n");
+	}
+
+	UINT16 banks = size / 0x4000;
+
+	if (size != banks * 0x4000 || (~(banks - 1) % banks))
+	{
+		fatalerror("msxwrite: Invalid ROM size\n");
+	}
+
+	m_bank_mask = banks - 1;
+
+	restore_banks();
+}
+
+
+READ8_MEMBER(msx_cart_msxwrite::read_cart)
+{
+	if ( offset >= 0x4000 && offset < 0xC000 )
+	{
+		return m_bank_base[offset >> 15][offset & 0x3fff];
+	}
+	return 0xff;
+}
+
+
+WRITE8_MEMBER(msx_cart_msxwrite::write_cart)
+{
+	// The rom writes to 6fff and 7fff for banking, unknown whether
+	// other locations also trigger banking.
+	switch (offset)
+	{
+		case 0x6fff:
+			m_selected_bank[0] = data;
+			m_bank_base[0] = get_rom_base() + (m_selected_bank[0] & m_bank_mask) * 0x4000;
+			break;
+
+		case 0x7fff:
+			m_selected_bank[1] = data;
+			m_bank_base[1] = get_rom_base() + (m_selected_bank[1] & m_bank_mask) * 0x4000;
+			break;
+	}
+}
+
diff --git a/src/emu/bus/msx_cart/ascii.h b/src/emu/bus/msx_cart/ascii.h
index 46545b31ec8..e23ce939e31 100644
--- a/src/emu/bus/msx_cart/ascii.h
+++ b/src/emu/bus/msx_cart/ascii.h
@@ -10,6 +10,7 @@ extern const device_type MSX_CART_ASCII8;
 extern const device_type MSX_CART_ASCII16;
 extern const device_type MSX_CART_ASCII8_SRAM;
 extern const device_type MSX_CART_ASCII16_SRAM;
+extern const device_type MSX_CART_MSXWRITE;
 
 
 class msx_cart_ascii8 : public device_t
@@ -114,4 +115,27 @@ private:
 };
 
 
+class msx_cart_msxwrite : public device_t
+						, public msx_cart_interface
+{
+public:
+	msx_cart_msxwrite(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+	// device-level overrides
+	virtual void device_start();
+	virtual void device_reset();
+
+	virtual void initialize_cartridge();
+
+	virtual DECLARE_READ8_MEMBER(read_cart);
+	virtual DECLARE_WRITE8_MEMBER(write_cart);
+
+	void restore_banks();
+
+private:
+	UINT8 m_bank_mask;
+	UINT8 m_selected_bank[2];
+	UINT8 *m_bank_base[2];
+};
+
 #endif
diff --git a/src/emu/bus/msx_cart/cartridge.c b/src/emu/bus/msx_cart/cartridge.c
index 9415ab2f3c0..93e419235cd 100644
--- a/src/emu/bus/msx_cart/cartridge.c
+++ b/src/emu/bus/msx_cart/cartridge.c
@@ -45,6 +45,7 @@ SLOT_INTERFACE_START(msx_cart)
 	SLOT_INTERFACE_INTERNAL("korean_80in1", MSX_CART_KOREAN_80IN1)
 	SLOT_INTERFACE_INTERNAL("korean_90in1", MSX_CART_KOREAN_90IN1)
 	SLOT_INTERFACE_INTERNAL("korean_126in1", MSX_CART_KOREAN_126IN1)
+	SLOT_INTERFACE_INTERNAL("msxwrite", MSX_CART_MSXWRITE)
 	SLOT_INTERFACE_INTERNAL("sound_snatcher", MSX_CART_SOUND_SNATCHER)
 	SLOT_INTERFACE_INTERNAL("sound_sdsnatch", MSX_CART_SOUND_SDSNATCHER)
 	SLOT_INTERFACE_INTERNAL("msxaud_hxmu900", MSX_CART_MSX_AUDIO_HXMU900)