// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic /*************************************************************************** ISA 8 bit Creative Labs Game Blaster Sound Card ***************************************************************************/ #include "emu.h" #include "gblaster.h" #include "sound/speaker.h" /* creative labs game blaster (CMS creative music system) 2 x saa1099 chips also on sound blaster 1.0 option on sound blaster 1.5 jumperable? normally 0x220 */ static MACHINE_CONFIG_FRAGMENT( game_blaster_config ) MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker") MCFG_SAA1099_ADD("saa1099.1", 7159090) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.50) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.50) MCFG_SAA1099_ADD("saa1099.2", 7159090) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.50) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.50) MACHINE_CONFIG_END READ8_MEMBER( isa8_gblaster_device::saa1099_16_r ) { return 0xff; } WRITE8_MEMBER( isa8_gblaster_device::saa1099_1_16_w ) { switch(offset) { case 0 : m_saa1099_1->data_w( space, offset, data ); break; case 1 : m_saa1099_1->control_w( space, offset, data ); break; } } WRITE8_MEMBER( isa8_gblaster_device::saa1099_2_16_w ) { switch(offset) { case 0 : m_saa1099_2->data_w( space, offset, data ); break; case 1 : m_saa1099_2->control_w( space, offset, data ); break; } } READ8_MEMBER( isa8_gblaster_device::detect_r ) { switch(offset) { case 0: case 1: return 0x7f; break; // this register reportedly returns 0x3f on a Tandy 1000 TL, and 0x7f on a generic 486 PC. case 6: case 7: return detect_reg; break; default: return 0xff; } } WRITE8_MEMBER( isa8_gblaster_device::detect_w ) { switch(offset) { case 2: case 3: detect_reg = (data & 0xff); break; } } //************************************************************************** // GLOBAL VARIABLES //************************************************************************** const device_type ISA8_GAME_BLASTER = &device_creator; //------------------------------------------------- // machine_config_additions - device-specific // machine configurations //------------------------------------------------- machine_config_constructor isa8_gblaster_device::device_mconfig_additions() const { return MACHINE_CONFIG_NAME( game_blaster_config ); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // isa8_gblaster_device - constructor //------------------------------------------------- isa8_gblaster_device::isa8_gblaster_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, ISA8_GAME_BLASTER, "Game Blaster Sound Card", tag, owner, clock, "isa_gblaster", __FILE__), device_isa8_card_interface(mconfig, *this), m_saa1099_1(*this, "saa1099.1"), m_saa1099_2(*this, "saa1099.2"), detect_reg(0xFF) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void isa8_gblaster_device::device_start() { set_isa_device(); m_isa->install_device(0x0220, 0x0221, 0, 0, read8_delegate( FUNC(isa8_gblaster_device::saa1099_16_r), this ), write8_delegate( FUNC(isa8_gblaster_device::saa1099_1_16_w), this ) ); m_isa->install_device(0x0222, 0x0223, 0, 0, read8_delegate( FUNC(isa8_gblaster_device::saa1099_16_r), this ), write8_delegate( FUNC(isa8_gblaster_device::saa1099_2_16_w), this ) ); m_isa->install_device(0x0224, 0x022F, 0, 0, read8_delegate( FUNC(isa8_gblaster_device::detect_r), this ), write8_delegate( FUNC(isa8_gblaster_device::detect_w), this ) ); } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void isa8_gblaster_device::device_reset() { }