mirror of
https://github.com/holub/mame
synced 2025-05-30 01:23:07 +03:00
70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
#ifndef __SAT_BRAM_H
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#define __SAT_BRAM_H
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#include "machine/sat_slot.h"
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// ======================> saturn_bram_device
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class saturn_bram_device : public device_t,
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public device_sat_cart_interface,
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public device_nvram_interface
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{
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public:
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// construction/destruction
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saturn_bram_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, UINT32 size, const char *shortname, const char *source);
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// device-level overrides
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virtual void device_start();
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virtual void device_reset();
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// device_nvram_interface overrides
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virtual void nvram_default() { }
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virtual void nvram_read(emu_file &file) { if (m_ext_bram != NULL) { file.read(m_ext_bram, m_ext_bram_size); } }
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virtual void nvram_write(emu_file &file) { if (m_ext_bram != NULL) { file.write(m_ext_bram, m_ext_bram_size); } }
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// reading and writing
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virtual DECLARE_READ32_MEMBER(read_ext_bram);
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virtual DECLARE_WRITE32_MEMBER(write_ext_bram);
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UINT32 m_size; // this is the size of Battery RAM in bytes
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};
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class saturn_bram4mb_device : public saturn_bram_device
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{
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public:
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// construction/destruction
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saturn_bram4mb_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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};
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class saturn_bram8mb_device : public saturn_bram_device
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{
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public:
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// construction/destruction
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saturn_bram8mb_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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};
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class saturn_bram16mb_device : public saturn_bram_device
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{
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public:
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// construction/destruction
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saturn_bram16mb_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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};
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class saturn_bram32mb_device : public saturn_bram_device
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{
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public:
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// construction/destruction
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saturn_bram32mb_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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};
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// device type definition
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extern const device_type SATURN_BRAM_4MB;
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extern const device_type SATURN_BRAM_8MB;
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extern const device_type SATURN_BRAM_16MB;
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extern const device_type SATURN_BRAM_32MB;
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#endif
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