/********************************************************************* a2alfsm2.c Implementation of the ALF Apple Music II card *********************************************************************/ #include "a2alfam2.h" #include "includes/apple2.h" #include "sound/sn76496.h" /*************************************************************************** PARAMETERS ***************************************************************************/ //************************************************************************** // GLOBAL VARIABLES //************************************************************************** const device_type A2BUS_ALFAM2 = &device_creator; #define SN1_TAG "sn76489_1" // left #define SN2_TAG "sn76489_2" // center #define SN3_TAG "sn76489_3" // right //------------------------------------------------- // sn76496_config psg_intf //------------------------------------------------- static const sn76496_config psg_intf = { DEVCB_NULL }; MACHINE_CONFIG_FRAGMENT( a2alfam2 ) MCFG_SPEAKER_STANDARD_STEREO("alf_l", "alf_r") MCFG_SOUND_ADD(SN1_TAG, SN76489, XTAL_3_579545MHz) MCFG_SOUND_CONFIG(psg_intf) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "alf_l", 0.50) MCFG_SOUND_ADD(SN2_TAG, SN76489, XTAL_3_579545MHz) MCFG_SOUND_CONFIG(psg_intf) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "alf_l", 0.50) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "alf_r", 0.50) MCFG_SOUND_ADD(SN3_TAG, SN76489, XTAL_3_579545MHz) MCFG_SOUND_CONFIG(psg_intf) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "alf_r", 0.50) MACHINE_CONFIG_END /*************************************************************************** FUNCTION PROTOTYPES ***************************************************************************/ //------------------------------------------------- // machine_config_additions - device-specific // machine configurations //------------------------------------------------- machine_config_constructor a2bus_alfam2_device::device_mconfig_additions() const { return MACHINE_CONFIG_NAME( a2alfam2 ); } //************************************************************************** // LIVE DEVICE //************************************************************************** a2bus_alfam2_device::a2bus_alfam2_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) : device_t(mconfig, type, name, tag, owner, clock, shortname, source), device_a2bus_card_interface(mconfig, *this), m_sn1(*this, SN1_TAG), m_sn2(*this, SN2_TAG), m_sn3(*this, SN3_TAG) { } a2bus_alfam2_device::a2bus_alfam2_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, A2BUS_ALFAM2, "ALF Apple Music II", tag, owner, clock, "a2alfam2", __FILE__), device_a2bus_card_interface(mconfig, *this), m_sn1(*this, SN1_TAG), m_sn2(*this, SN2_TAG), m_sn3(*this, SN3_TAG) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void a2bus_alfam2_device::device_start() { // set_a2bus_device makes m_slot valid set_a2bus_device(); } void a2bus_alfam2_device::device_reset() { } void a2bus_alfam2_device::write_c0nx(address_space &space, UINT8 offset, UINT8 data) { switch (offset) { case 0: m_sn1->write(space, 0, data); break; case 1: m_sn2->write(space, 0, data); break; case 2: m_sn3->write(space, 0, data); break; } } bool a2bus_alfam2_device::take_c800() { return false; }