diff --git a/hash/nes.xml b/hash/nes.xml
index bdcff4f5fc1..2c778b2f9c7 100644
--- a/hash/nes.xml
+++ b/hash/nes.xml
@@ -80344,6 +80344,21 @@ be better to redump them properly. -->
+
+ Y2K 420 in 1
+ 19??
+ <pirate>
+
+
+
+
+
+
+
+
+
+
+
45 in 1 (JY-120A)
19??
diff --git a/src/devices/bus/nes/multigame.cpp b/src/devices/bus/nes/multigame.cpp
index bb4d6d90ac0..71793333747 100644
--- a/src/devices/bus/nes/multigame.cpp
+++ b/src/devices/bus/nes/multigame.cpp
@@ -66,7 +66,8 @@ DEFINE_DEVICE_TYPE(NES_BMC_HIK300, nes_bmc_hik300_device, "nes_bmc_hik30
DEFINE_DEVICE_TYPE(NES_BMC_S700, nes_bmc_s700_device, "nes_bmc_s700", "NES Cart BMC Super 700 in 1 PCB")
DEFINE_DEVICE_TYPE(NES_BMC_BALL11, nes_bmc_ball11_device, "nes_bmc_ball11", "NES Cart BMC Ball 11 in 1 PCB")
DEFINE_DEVICE_TYPE(NES_BMC_22GAMES, nes_bmc_22games_device, "nes_bmc_22games", "NES Cart BMC 22 Games PCB")
-DEFINE_DEVICE_TYPE(NES_BMC_64Y2K, nes_bmc_64y2k_device, "nes_bmc_64y2k", "NES Cart BMC 64 in 1 Y2K PCB")
+DEFINE_DEVICE_TYPE(NES_BMC_64Y2K, nes_bmc_64y2k_device, "nes_bmc_64y2k", "NES Cart BMC Y2K 64 in 1 PCB")
+DEFINE_DEVICE_TYPE(NES_BMC_420Y2K, nes_bmc_420y2k_device, "nes_bmc_420y2k", "NES Cart BMC Y2K 420 in 1 PCB")
DEFINE_DEVICE_TYPE(NES_BMC_12IN1, nes_bmc_12in1_device, "nes_bmc_12in1", "NES Cart BMC 12 in 1 PCB")
DEFINE_DEVICE_TYPE(NES_BMC_20IN1, nes_bmc_20in1_device, "nes_bmc_20in1", "NES Cart BMC 20 in 1 PCB")
DEFINE_DEVICE_TYPE(NES_BMC_21IN1, nes_bmc_21in1_device, "nes_bmc_21in1", "NES Cart BMC 21 in 1 PCB")
@@ -305,6 +306,11 @@ nes_bmc_64y2k_device::nes_bmc_64y2k_device(const machine_config &mconfig, const
{
}
+nes_bmc_420y2k_device::nes_bmc_420y2k_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : nes_nrom_device(mconfig, NES_BMC_420Y2K, tag, owner, clock), m_latch(0), m_reg(0)
+{
+}
+
nes_bmc_12in1_device::nes_bmc_12in1_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: nes_nrom_device(mconfig, NES_BMC_12IN1, tag, owner, clock)
{
@@ -824,6 +830,23 @@ void nes_bmc_64y2k_device::pcb_reset()
set_nt_mirroring(PPU_MIRROR_VERT);
}
+void nes_bmc_420y2k_device::device_start()
+{
+ common_start();
+ save_item(NAME(m_latch));
+ save_item(NAME(m_reg));
+}
+
+void nes_bmc_420y2k_device::pcb_reset()
+{
+ prg16_89ab(0);
+ prg16_cdef(7);
+ chr8(0, CHRRAM);
+
+ m_latch = 0;
+ m_reg = 0;
+}
+
void nes_bmc_12in1_device::device_start()
{
common_start();
@@ -2226,6 +2249,48 @@ void nes_bmc_64y2k_device::write_h(offs_t offset, uint8_t data)
m_reg[3] = data; // reg[3] is currently unused?!?
}
+/*-------------------------------------------------
+
+ Board BMC-TELETUBBIES
+ (name assigned by BootGod who said the board has
+ no markings, a glop top, and an 8K VRAM chip)
+
+ Games: Y2K 420 in 1
+
+ iNES: mapper 237
+
+ In MAME: Supported.
+
+ -------------------------------------------------*/
+
+void nes_bmc_420y2k_device::write_h(offs_t offset, u8 data)
+{
+ LOG_MMC(("bmc_420y2k write_h, offset: %04x, data: %02x\n", offset, data));
+
+ if (BIT(m_latch, 1)) // lock bit
+ m_reg = (m_reg & ~0x07) | (data & 0x07);
+ else
+ {
+ m_latch = offset;
+ m_reg = data;
+ }
+
+ u8 bank = BIT(m_latch, 2) << 5 | (m_reg & 0x1f);
+ u8 mode = BIT(m_reg, 6);
+ prg16_89ab(bank & ~mode); // strangely for UNROM games it DOESN'T ignore the NROM mode bit
+ prg16_cdef(bank | (BIT(m_reg, 7) ? mode : 0x07));
+
+ set_nt_mirroring(BIT(m_reg, 5) ? PPU_MIRROR_HORZ : PPU_MIRROR_VERT);
+}
+
+u8 nes_bmc_420y2k_device::read_h(offs_t offset)
+{
+ LOG_MMC(("bmc_420y2k read_h, offset: %04x\n", offset));
+ // latch bit 0 is only used to determine the menu, and the behavior of
+ // this cart seems hardwired to OR $02 (ORing $00-$03 allows four menus)
+ return hi_access_rom(offset | (m_latch & 1) << 1);
+}
+
/*-------------------------------------------------
BMC-12IN1
diff --git a/src/devices/bus/nes/multigame.h b/src/devices/bus/nes/multigame.h
index 54056689f5b..6dfbed4ee7e 100644
--- a/src/devices/bus/nes/multigame.h
+++ b/src/devices/bus/nes/multigame.h
@@ -672,6 +672,28 @@ private:
};
+// ======================> nes_bmc_420y2k_device
+
+class nes_bmc_420y2k_device : public nes_nrom_device
+{
+public:
+ // construction/destruction
+ nes_bmc_420y2k_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+ virtual u8 read_h(offs_t offset) override;
+ virtual void write_h(offs_t offset, u8 data) override;
+
+ virtual void pcb_reset() override;
+
+protected:
+ // device-level overrides
+ virtual void device_start() override;
+
+private:
+ u8 m_latch, m_reg;
+};
+
+
// ======================> nes_bmc_12in1_device
class nes_bmc_12in1_device : public nes_nrom_device
@@ -1141,6 +1163,7 @@ DECLARE_DEVICE_TYPE(NES_BMC_S700, nes_bmc_s700_device)
DECLARE_DEVICE_TYPE(NES_BMC_BALL11, nes_bmc_ball11_device)
DECLARE_DEVICE_TYPE(NES_BMC_22GAMES, nes_bmc_22games_device)
DECLARE_DEVICE_TYPE(NES_BMC_64Y2K, nes_bmc_64y2k_device)
+DECLARE_DEVICE_TYPE(NES_BMC_420Y2K, nes_bmc_420y2k_device)
DECLARE_DEVICE_TYPE(NES_BMC_12IN1, nes_bmc_12in1_device)
DECLARE_DEVICE_TYPE(NES_BMC_20IN1, nes_bmc_20in1_device)
DECLARE_DEVICE_TYPE(NES_BMC_21IN1, nes_bmc_21in1_device)
diff --git a/src/devices/bus/nes/nes_carts.cpp b/src/devices/bus/nes/nes_carts.cpp
index e7eab6a1166..8237cb0bca0 100644
--- a/src/devices/bus/nes/nes_carts.cpp
+++ b/src/devices/bus/nes/nes_carts.cpp
@@ -401,6 +401,7 @@ void nes_cart(device_slot_interface &device)
device.option_add_internal("bmc_ball11", NES_BMC_BALL11);
device.option_add_internal("bmc_22games", NES_BMC_22GAMES);
device.option_add_internal("bmc_64y2k", NES_BMC_64Y2K);
+ device.option_add_internal("bmc_420y2k", NES_BMC_420Y2K);
device.option_add_internal("bmc_12in1", NES_BMC_12IN1);
device.option_add_internal("bmc_20in1", NES_BMC_20IN1);
device.option_add_internal("bmc_21in1", NES_BMC_21IN1);
diff --git a/src/devices/bus/nes/nes_ines.hxx b/src/devices/bus/nes/nes_ines.hxx
index a028aafdbae..6f31c9abbe0 100644
--- a/src/devices/bus/nes/nes_ines.hxx
+++ b/src/devices/bus/nes/nes_ines.hxx
@@ -270,7 +270,7 @@ static const nes_mmc mmc_list[] =
{ 234, AVE_MAXI15 },
{ 235, BMC_GOLD150 }, // 235 Golden Game x-in-1 - Unsupported
{ 236, BMC_70IN1 },
- // 237 Teletubbies 420-in-1 multicart. Dump available?
+ { 237, BMC_TELETUBBIES },
{ 238, UNL_603_5052 },
// 239 Unused
{ 240, CNE_SHLZ },
diff --git a/src/devices/bus/nes/nes_pcb.hxx b/src/devices/bus/nes/nes_pcb.hxx
index abf0dfc1aae..799f17a15b6 100644
--- a/src/devices/bus/nes/nes_pcb.hxx
+++ b/src/devices/bus/nes/nes_pcb.hxx
@@ -278,6 +278,7 @@ static const nes_pcb pcb_list[] =
{ "bmc_ball11", BMC_BALLGAMES_11IN1 },
{ "bmc_22games", BMC_22GAMES },
{ "bmc_64y2k", BMC_64IN1NR },
+ { "bmc_420y2k", BMC_TELETUBBIES },
{ "bmc_12in1", BMC_12IN1 },
{ "bmc_20in1", BMC_20IN1 },
{ "bmc_21in1", BMC_21IN1 },
diff --git a/src/devices/bus/nes/nes_slot.h b/src/devices/bus/nes/nes_slot.h
index 23057b9c6c5..fc4459c458a 100644
--- a/src/devices/bus/nes/nes_slot.h
+++ b/src/devices/bus/nes/nes_slot.h
@@ -86,7 +86,7 @@ enum
TXC_MJBLOCK, TXC_STRIKEW, TXC_TW,
// Multigame Carts
BMC_64IN1NR, BMC_190IN1, BMC_A65AS, BMC_A88S1, BMC_F15,
- BMC_GN45, BMC_HIK8IN1, BMC_S24IN1SC03, BMC_T262,
+ BMC_GN45, BMC_HIK8IN1, BMC_S24IN1SC03, BMC_T262, BMC_TELETUBBIES,
BMC_WS, BMC_SUPERBIG_7IN1, BMC_SUPERHIK_4IN1, BMC_BALLGAMES_11IN1,
BMC_MARIOPARTY_7IN1, BMC_GOLD_7IN1, BMC_SUPER_700IN1, BMC_FAMILY_4646,
BMC_36IN1, BMC_21IN1, BMC_150IN1, BMC_35IN1, BMC_64IN1,
diff --git a/src/mame/machine/nes.cpp b/src/mame/machine/nes.cpp
index 29831ada9a8..2f4e29e5323 100644
--- a/src/mame/machine/nes.cpp
+++ b/src/mame/machine/nes.cpp
@@ -80,6 +80,7 @@ void nes_state::machine_start()
BMC_800IN1,
BMC_8157,
BMC_GOLD150,
+ BMC_TELETUBBIES,
BMC_VT5201,
BTL_PALTHENA,
CAMERICA_ALADDIN,