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-rw-r--r--src/devices/bus/snes/bsx.h151
1 files changed, 151 insertions, 0 deletions
diff --git a/src/devices/bus/snes/bsx.h b/src/devices/bus/snes/bsx.h
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+++ b/src/devices/bus/snes/bsx.h
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+// license:BSD-3-Clause
+// copyright-holders:Fabio Priuli
+#ifndef __SNS_BSX_H
+#define __SNS_BSX_H
+
+#include "snes_slot.h"
+#include "rom.h"
+#include "rom21.h"
+
+class BSX_base
+{
+public:
+ BSX_base(running_machine &machine);
+ running_machine &machine() const { return m_machine; }
+
+ void init();
+ UINT8 read(UINT32 offset);
+ void write(UINT32 offset, UINT8 data);
+
+private:
+ // regs
+ UINT8 regs[0x18]; // 0x2188-0x219f
+
+ // counter + clock
+ UINT8 r2192_counter;
+ UINT8 r2192_hour, r2192_minute, r2192_second;
+
+ running_machine& m_machine;
+};
+
+// ======================> sns_rom_bsx_device
+
+class sns_rom_bsx_device : public sns_rom_device
+{
+public:
+ // construction/destruction
+ sns_rom_bsx_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
+ sns_rom_bsx_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+ virtual machine_config_constructor device_mconfig_additions() const;
+
+ // additional reading and writing
+ virtual DECLARE_READ8_MEMBER(read_l);
+ virtual DECLARE_READ8_MEMBER(read_h);
+ virtual DECLARE_WRITE8_MEMBER(write_l);
+ virtual DECLARE_WRITE8_MEMBER(write_h);
+ virtual DECLARE_READ8_MEMBER(chip_read);
+ virtual DECLARE_WRITE8_MEMBER(chip_write);
+
+ // base regs
+ BSX_base *m_base_unit;
+
+ // cart regs
+ UINT8 m_cart_regs[16];
+ UINT8 access_00_1f; // 1 = CART, 0 = NOTHING
+ UINT8 access_80_9f; // 1 = CART, 0 = NOTHING
+ UINT8 access_40_4f; // 1 = NOTHING, 0 = PRAM
+ UINT8 access_50_5f; // 1 = NOTHING, 0 = PRAM
+ UINT8 access_60_6f; // 1 = PRAM, 0 = NOTHING
+ UINT8 rom_access; // 2 = HiROM, 1 = LoROM, 0 = PRAM
+ void access_update();
+
+
+ UINT8 m_pram[0x80000];
+
+private:
+ required_device<sns_bsx_cart_slot_device> m_slot;
+};
+
+// ======================> sns_rom_bsxlo_device
+
+class sns_rom_bsxlo_device : public sns_rom_device
+{
+public:
+ // construction/destruction
+ sns_rom_bsxlo_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // device-level overrides
+ virtual void device_start();
+ virtual machine_config_constructor device_mconfig_additions() const;
+
+ // additional reading and writing
+ virtual DECLARE_READ8_MEMBER(read_l);
+ virtual DECLARE_READ8_MEMBER(read_h);
+
+private:
+ required_device<sns_bsx_cart_slot_device> m_slot;
+};
+
+// ======================> sns_rom_bsxhi_device
+
+class sns_rom_bsxhi_device : public sns_rom21_device
+{
+public:
+ // construction/destruction
+ sns_rom_bsxhi_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // device-level overrides
+ virtual void device_start();
+ virtual machine_config_constructor device_mconfig_additions() const;
+
+ // additional reading and writing
+ virtual DECLARE_READ8_MEMBER(read_l);
+ virtual DECLARE_READ8_MEMBER(read_h);
+
+private:
+ required_device<sns_bsx_cart_slot_device> m_slot;
+};
+
+
+// ======================> sns_rom_bsmempak_device
+
+class sns_rom_bsmempak_device : public sns_rom_device
+{
+public:
+ // construction/destruction
+ sns_rom_bsmempak_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+ // additional reading and writing
+ virtual DECLARE_READ8_MEMBER(read_l);
+ virtual DECLARE_READ8_MEMBER(read_h);
+ virtual DECLARE_WRITE8_MEMBER(write_l);
+// virtual DECLARE_WRITE8_MEMBER(write_h);
+// virtual DECLARE_READ8_MEMBER(chip_read);
+// virtual DECLARE_WRITE8_MEMBER(chip_write);
+
+ // flash regs
+ UINT32 m_command;
+ UINT8 m_write_old;
+ UINT8 m_write_new;
+
+ int m_flash_enable;
+ int m_read_enable;
+ int m_write_enable;
+};
+
+
+// device type definition
+extern const device_type SNS_ROM_BSX;
+extern const device_type SNS_LOROM_BSX;
+extern const device_type SNS_HIROM_BSX;
+extern const device_type SNS_BSMEMPAK;
+
+#endif