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Diffstat (limited to 'src/mess/machine/c8280.h')
-rw-r--r-- | src/mess/machine/c8280.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/mess/machine/c8280.h b/src/mess/machine/c8280.h new file mode 100644 index 00000000000..37587d1505a --- /dev/null +++ b/src/mess/machine/c8280.h @@ -0,0 +1,82 @@ +/********************************************************************** + + Commodore 8280 Dual 8" Disk Drive emulation + + Copyright MESS Team. + Visit http://mamedev.org for licensing and usage restrictions. + +**********************************************************************/ + +#pragma once + +#ifndef __C8280__ +#define __C8280__ + + +#include "emu.h" +#include "cpu/m6502/m6502.h" +#include "imagedev/flopdrv.h" +#include "machine/6532riot.h" +#include "machine/ieee488.h" + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> c8280_device + +class c8280_device : public device_t, + public device_ieee488_interface +{ +public: + // construction/destruction + c8280_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; + + // not really public + DECLARE_READ8_MEMBER( dio_r ); + DECLARE_WRITE8_MEMBER( dio_w ); + DECLARE_READ8_MEMBER( riot1_pa_r ); + DECLARE_WRITE8_MEMBER( riot1_pa_w ); + DECLARE_READ8_MEMBER( riot1_pb_r ); + DECLARE_WRITE8_MEMBER( riot1_pb_w ); + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); + virtual void device_config_complete(); + + // device_ieee488_interface overrides + void ieee488_atn(int state); + void ieee488_ifc(int state); + +private: + inline void update_ieee_signals(); + + required_device<cpu_device> m_maincpu; + required_device<cpu_device> m_fdccpu; + required_device<riot6532_device> m_riot0; + required_device<riot6532_device> m_riot1; + required_device<device_t> m_image0; + required_device<device_t> m_image1; + + // IEEE-488 bus + int m_rfdo; // not ready for data output + int m_daco; // not data accepted output + int m_atna; // attention acknowledge +}; + + +// device type definition +extern const device_type C8280; + + + +#endif |