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author | 2013-10-22 16:45:06 +0000 | |
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committer | 2013-10-22 16:45:06 +0000 | |
commit | cd6f73b9c7a6a8b8ee734051cf4ae9fabff477da (patch) | |
tree | 49ff21880abf2d678c4b297fbf12115973af8bf7 /src/emu/bus/a2bus/a2hsscsi.h | |
parent | ef774dd504626acb2e7648ada9ea8d8783937795 (diff) |
(MESS) Apple II bus moving day (nw)
Diffstat (limited to 'src/emu/bus/a2bus/a2hsscsi.h')
-rw-r--r-- | src/emu/bus/a2bus/a2hsscsi.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/emu/bus/a2bus/a2hsscsi.h b/src/emu/bus/a2bus/a2hsscsi.h new file mode 100644 index 00000000000..01c24dfbb4f --- /dev/null +++ b/src/emu/bus/a2bus/a2hsscsi.h @@ -0,0 +1,63 @@ +/********************************************************************* + + a2hsscsi.h + + Implementation of the Apple II High Speed SCSI Card + +*********************************************************************/ + +#ifndef __A2BUS_HSSCSI__ +#define __A2BUS_HSSCSI__ + +#include "emu.h" +#include "a2bus.h" +#include "machine/ncr5380n.h" + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class a2bus_hsscsi_device: + public device_t, + public device_a2bus_card_interface +{ +public: + // construction/destruction + a2bus_hsscsi_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); + a2bus_hsscsi_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // optional information overrides + virtual machine_config_constructor device_mconfig_additions() const; + virtual const rom_entry *device_rom_region() const; + + required_device<ncr5380n_device> m_ncr5380; + required_device<nscsi_bus_device> m_scsibus; + + DECLARE_WRITE_LINE_MEMBER( drq_w ); + +protected: + virtual void device_start(); + virtual void device_reset(); + + // overrides of standard a2bus slot functions + virtual UINT8 read_c0nx(address_space &space, UINT8 offset); + virtual void write_c0nx(address_space &space, UINT8 offset, UINT8 data); + virtual UINT8 read_cnxx(address_space &space, UINT8 offset); + virtual void write_cnxx(address_space &space, UINT8 offset, UINT8 data); + virtual UINT8 read_c800(address_space &space, UINT16 offset); + virtual void write_c800(address_space &space, UINT16 offset, UINT8 data); + +private: + UINT8 *m_rom; + UINT8 m_ram[8192]; // 8 banks of 1024 bytes + int m_rambank, m_rombank; + UINT8 m_drq; + UINT8 m_bank; + bool m_816block; + UINT8 m_c0ne, m_c0nf; +}; + +// device type definition +extern const device_type A2BUS_HSSCSI; + +#endif /* __A2BUS_HSSCSI__ */ |