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Diffstat (limited to 'src/mess/machine/s100_dj2db.h')
-rw-r--r-- | src/mess/machine/s100_dj2db.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/src/mess/machine/s100_dj2db.h b/src/mess/machine/s100_dj2db.h new file mode 100644 index 00000000000..eef58252923 --- /dev/null +++ b/src/mess/machine/s100_dj2db.h @@ -0,0 +1,87 @@ +/********************************************************************** + + Morrow Designs Disk Jockey 2D/B floppy controller board emulation + + Copyright MESS Team. + Visit http://mamedev.org for licensing and usage restrictions. + +**********************************************************************/ + +#pragma once + +#ifndef __S100_DJ2DB__ +#define __S100_DJ2DB__ + + +#include "emu.h" +#include "formats/basicdsk.h" +#include "imagedev/flopdrv.h" +#include "machine/s100.h" +#include "machine/com8116.h" +#include "machine/wd17xx.h" + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> s100_dj2db_device + +class s100_dj2db_device : public device_t, + public device_s100_card_interface +{ +public: + // construction/destruction + s100_dj2db_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // optional information overrides + virtual const rom_entry *device_rom_region() const; + virtual machine_config_constructor device_mconfig_additions() const; + virtual ioport_constructor device_input_ports() const; + + // not really public + DECLARE_WRITE_LINE_MEMBER( fdc_intrq_w ); + DECLARE_WRITE_LINE_MEMBER( fdc_drq_w ); + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + virtual void device_config_complete() { m_shortname = "dj2db"; } + + // device_s100_card_interface overrides + virtual UINT8 s100_smemr_r(offs_t offset); + virtual void s100_mwrt_w(offs_t offset, UINT8 data); + virtual UINT8 s100_sinp_r(offs_t offset); + virtual void s100_sout_w(offs_t offset, UINT8 data); + virtual void s100_phantom_w(int state); + virtual bool s100_has_terminal() { return true; } + virtual void s100_terminal_w(UINT8 data); + +private: + // internal state + required_device<device_t> m_fdc; + required_device<com8116_device> m_dbrg; + device_t* m_floppy0; + device_t* m_floppy1; + + // floppy state + int m_drive; // selected drive + int m_head; // head loaded + int m_int_enbl; // interrupt enable + + // S-100 bus state + UINT8 *m_rom; // ROM + UINT8 *m_ram; // RAM + int m_access_enbl; // access enable + int m_board_enbl; // board enable + int m_phantom; // phantom +}; + + +// device type definition +extern const device_type S100_DJ2DB; + + +#endif |