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-rw-r--r--src/devices/bus/nes/somari.h54
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diff --git a/src/devices/bus/nes/somari.h b/src/devices/bus/nes/somari.h
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+++ b/src/devices/bus/nes/somari.h
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+// license:BSD-3-Clause
+// copyright-holders:Fabio Priuli
+#ifndef __NES_SOMARI_H
+#define __NES_SOMARI_H
+
+#include "mmc3.h"
+
+
+// ======================> nes_somari_device
+
+class nes_somari_device : public nes_txrom_device
+{
+public:
+ // construction/destruction
+ nes_somari_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // device-level overrides
+ virtual void device_start();
+ virtual DECLARE_WRITE8_MEMBER(write_l) { write_m(space, offset + 0x100, data, mem_mask); }
+ virtual DECLARE_WRITE8_MEMBER(write_m);
+ virtual DECLARE_WRITE8_MEMBER(mmc1_w);
+ virtual DECLARE_WRITE8_MEMBER(mmc3_w);
+ virtual DECLARE_WRITE8_MEMBER(vrc2_w);
+ virtual DECLARE_WRITE8_MEMBER(write_h);
+
+ virtual void pcb_reset();
+private:
+ void update_prg();
+ void update_chr();
+ void update_mirror();
+ void bank_update_switchmode();
+
+ UINT8 m_board_mode;
+
+ // MMC3 - inherited from txrom
+ UINT8 m_mmc3_mirror_reg;
+
+ // MMC1
+ UINT8 m_count;
+ UINT8 m_mmc1_latch;
+ UINT8 m_mmc1_reg[4];
+
+ // VRC2
+ UINT8 m_vrc_prg_bank[2];
+ UINT8 m_vrc_vrom_bank[8];
+ UINT8 m_vrc_mirror_reg;
+};
+
+
+
+// device type definition
+extern const device_type NES_SOMARI;
+
+#endif