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-rw-r--r--src/devices/bus/nes/subor.h78
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diff --git a/src/devices/bus/nes/subor.h b/src/devices/bus/nes/subor.h
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+++ b/src/devices/bus/nes/subor.h
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+// license:BSD-3-Clause
+// copyright-holders:Kaz
+#ifndef MAME_BUS_NES_SUBOR_H
+#define MAME_BUS_NES_SUBOR_H
+
+#include "nxrom.h"
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> nes_subor0_device
+
+class nes_subor0_device :
+ public nes_nrom_device
+{
+public:
+ // construction/destruction
+ nes_subor0_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;
+
+private:
+ uint8_t m_reg[4];
+};
+
+// ======================> nes_subor1_device
+
+class nes_subor1_device :
+ public nes_nrom_device
+{
+public:
+ // construction/destruction
+ nes_subor1_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;
+
+private:
+ uint8_t m_reg[4];
+};
+
+// ======================> nes_subor2_device
+
+class nes_subor2_device :
+ public nes_nrom_device
+{
+public:
+ // construction/destruction
+ nes_subor2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ // device-level overrides
+ virtual void device_start() override;
+ virtual DECLARE_READ8_MEMBER(nt_r) override;
+ virtual DECLARE_WRITE8_MEMBER(write_l) override;
+ virtual DECLARE_READ8_MEMBER(read_l) override;
+
+ virtual void ppu_latch(offs_t offset) override;
+ virtual void pcb_reset() override;
+
+private:
+ void update_banks();
+ uint8_t m_switch_reg, m_bank_reg, m_chr_banking, m_page;
+};
+
+// device type definition
+extern const device_type NES_SUBOR0;
+extern const device_type NES_SUBOR1;
+extern const device_type NES_SUBOR2;
+
+#endif /* MAME_BUS_NES_SUBOR_H */ \ No newline at end of file