diff options
Diffstat (limited to 'src/devices/bus/a2bus/a2alfam2.h')
-rw-r--r-- | src/devices/bus/a2bus/a2alfam2.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/devices/bus/a2bus/a2alfam2.h b/src/devices/bus/a2bus/a2alfam2.h new file mode 100644 index 00000000000..ab2ee9e38a4 --- /dev/null +++ b/src/devices/bus/a2bus/a2alfam2.h @@ -0,0 +1,72 @@ +// license:BSD-3-Clause +// copyright-holders:R. Belmont +/********************************************************************* + + a2alfam2.h + + Implementation of the ALF Apple Music II card and compatibles + +*********************************************************************/ + +#ifndef __A2BUS_ALFAM2__ +#define __A2BUS_ALFAM2__ + +#include "emu.h" +#include "a2bus.h" +#include "sound/sn76496.h" + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class a2bus_sn76489_device: + public device_t, + public device_a2bus_card_interface +{ +public: + // construction/destruction + a2bus_sn76489_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); + + // optional information overrides + virtual machine_config_constructor device_mconfig_additions() const; + + required_device<sn76489_device> m_sn1; + required_device<sn76489_device> m_sn2; + required_device<sn76489_device> m_sn3; + optional_device<sn76489_device> m_sn4; + +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 bool take_c800(); + +private: + UINT8 m_latch0, m_latch1, m_latch2, m_latch3; + +protected: + bool m_has4thsn; +}; + +class a2bus_alfam2_device : public a2bus_sn76489_device +{ +public: + a2bus_alfam2_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); +}; + +class a2bus_aesms_device : public a2bus_sn76489_device +{ +public: + a2bus_aesms_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + virtual machine_config_constructor device_mconfig_additions() const; +}; + +// device type definition +extern const device_type A2BUS_ALFAM2; +extern const device_type A2BUS_AESMS; + +#endif /* __A2BUS_ALFAM2__ */ |