nes: Add Magic Kid Googoo board.

scripts/src/bus.lua

@@ -1921,6 +1921,8 @@ if (BUSES["NES"]~=null) then
 		MAME_DIR .. "src/devices/bus/nes/txc.h",
 		MAME_DIR .. "src/devices/bus/nes/waixing.cpp",
 		MAME_DIR .. "src/devices/bus/nes/waixing.h",
+		MAME_DIR .. "src/devices/bus/nes/zemina.cpp",
+		MAME_DIR .. "src/devices/bus/nes/zemina.h",
 	}
 end
 

src/devices/bus/nes/nes_carts.cpp

@@ -224,6 +224,7 @@ SLOT_INTERFACE_START(nes_cart)
 	SLOT_INTERFACE_INTERNAL("unl_43272",        NES_43272)    // used in Gaau Hok Gwong Cheung
 	SLOT_INTERFACE_INTERNAL("tf1201",           NES_TF1201)
 	SLOT_INTERFACE_INTERNAL("unl_cfight",       NES_CITYFIGHT) //  used by City Fighter IV
+	SLOT_INTERFACE_INTERNAL("zemina",           NES_ZEMINA)    // mapper 190 - Magic Kid Googoo, etc.
 // misc bootleg boards
 	SLOT_INTERFACE_INTERNAL("ax5705",           NES_AX5705)
 	SLOT_INTERFACE_INTERNAL("sc127",            NES_SC127)

src/devices/bus/nes/nes_carts.h

@@ -59,6 +59,7 @@
 #include "tengen.h"
 #include "txc.h"
 #include "waixing.h"
+#include "zemina.h"
 // misc unlicensed/bootleg/pirate PCBs
 #include "bootleg.h"
 #include "multigame.h"

src/devices/bus/nes/nes_ines.hxx

@@ -221,7 +221,7 @@ static const nes_mmc mmc_list[] =
 	{ 187, UNL_KOF96 },
 	{ 188, BANDAI_KARAOKE },
 	{ 189, TXC_TW },
-	// 190 Unused
+	{ 190, ZEMINA_BOARD },
 	{ 191, WAIXING_TYPE_B },
 	{ 192, WAIXING_TYPE_C },
 	{ 193, NTDEC_FIGHTINGHERO },

src/devices/bus/nes/nes_pcb.hxx

@@ -190,6 +190,7 @@ static const nes_pcb pcb_list[] =
 	{ "edu2k",            UNL_EDU2K },
 	{ "t230",             UNL_T230 },
 	{ "mk2",              UNL_MK2 },
+	{ "zemina",           ZEMINA_BOARD },
 	// misc bootleg boards
 	{ "ax5705",           UNL_AX5705 },
 	{ "sc127",            UNL_SC127 },

src/devices/bus/nes/nes_slot.h

@@ -125,7 +125,7 @@ enum
 	WAIXING_SGZLZ, WAIXING_SGZ, WAIXING_WXZS, WAIXING_SECURITY, WAIXING_SH2,
 	WAIXING_DQ8, WAIXING_FFV, WAIXING_WXZS2, SUPERGAME_LIONKING, SUPERGAME_BOOGERMAN,
 	KAY_BOARD, HOSENKAN_BOARD, NITRA_TDA, GOUDER_37017, NANJING_BOARD,
-	WHIRLWIND_2706,
+	WHIRLWIND_2706, ZEMINA_BOARD,
 	NOCASH_NOCHR,   // homebrew PCB design which uses NTRAM for CHRRAM
 	BTL_ACTION53,   // homebrew PCB for homebrew multicarts
 	BTL_2A03_PURITANS,   // homebrew PCB

src/devices/bus/nes/zemina.cpp

@@ -0,0 +1,85 @@
+// license:BSD-3-Clause
+// copyright-holders:Kaz
+/***********************************************************************************************************
+
+ NES/Famicom cartridge emulation for Zemina PCBs
+
+ ***********************************************************************************************************/
+
+#include "emu.h"
+#include "zemina.h"
+
+#ifdef NES_PCB_DEBUG
+#define VERBOSE 1
+#else
+#define VERBOSE 0
+#endif
+
+#define LOG_MMC(x) do { if (VERBOSE) logerror x; } while (0)
+
+//-------------------------------------------------
+//  constructor
+//-------------------------------------------------
+
+const device_type NES_ZEMINA = &device_creator<nes_zemina_device>;
+
+nes_zemina_device::nes_zemina_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+					: nes_nrom_device(mconfig, NES_ZEMINA, "NES Cart Zemina PCB", tag, owner, clock, "nes_zemina", __FILE__)
+{
+}
+
+void nes_zemina_device::device_start()
+{
+	common_start();
+}
+
+void nes_zemina_device::pcb_reset()
+{
+	set_nt_mirroring(PPU_MIRROR_VERT);
+	chr2_0(0, CHRROM);
+	chr2_2(0, CHRROM);
+	chr2_4(0, CHRROM);
+	chr2_6(0, CHRROM);
+	prg16_89ab(0);
+	prg16_cdef(0);
+}
+
+/*-------------------------------------------------
+ mapper specific handlers
+ -------------------------------------------------*/
+
+/*-------------------------------------------------
+ 
+ Zemina board emulation
+
+ Currently, this board is only known to be used
+ by one game: Magic Kid Googoo.
+ 
+ Info from kevtris at NESDev, who dumped the game:
+ https://wiki.nesdev.com/w/index.php/INES_Mapper_190
+
+ -------------------------------------------------*/
+
+WRITE8_MEMBER(nes_zemina_device::write_h)
+{
+	LOG_MMC(("zemina write_h, offset: %04x, data: %02x\n", offset, data));
+
+		if (offset >= 0x0000 && offset <= 0x1FFF)
+		{
+			prg16_89ab(data & 0x07);
+		}
+		else if (offset >= 0x4000 && offset <= 0x5FFF)
+		{
+			prg16_89ab((data & 0x07) | 0x08);
+		}
+		else if ((offset & 0x2000) == 0x2000) // 2K CHR banks
+		{
+			switch (offset & 0x03) // only A0, A1, A13, A14, and A15 are used to select the CHR bank
+			{
+				case 0x00: chr2_0(data, CHRROM); break;
+				case 0x01: chr2_2(data, CHRROM); break;
+				case 0x02: chr2_4(data, CHRROM); break;
+				case 0x03: chr2_6(data, CHRROM); break;
+			}
+		}
+}

src/devices/bus/nes/zemina.h

@@ -0,0 +1,26 @@
+// license:BSD-3-Clause
+// copyright-holders:Kaz
+#ifndef __NES_ZEMINA_H
+#define __NES_ZEMINA_H
+
+#include "nxrom.h"
+
+// ======================> nes_zemina_device
+
+class nes_zemina_device : public nes_nrom_device
+{
+public:
+	// construction/destruction
+	nes_zemina_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+	// device-level overrides
+	virtual void device_start() override;
+	virtual DECLARE_WRITE8_MEMBER(write_h) override;
+
+	virtual void pcb_reset() override;
+};
+
+// device type definition
+extern const device_type NES_ZEMINA;
+
+#endif