diff options
Diffstat (limited to 'src/emu/bus/intv/voice.c')
-rw-r--r-- | src/emu/bus/intv/voice.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/emu/bus/intv/voice.c b/src/emu/bus/intv/voice.c new file mode 100644 index 00000000000..ac5bc8cdc5b --- /dev/null +++ b/src/emu/bus/intv/voice.c @@ -0,0 +1,122 @@ +/*********************************************************************************************************** + + + Mattel Intellivoice cart emulation + + TODO: + - speech ROM shall be loaded from softlist + + ***********************************************************************************************************/ + + +#include "emu.h" +#include "voice.h" + + +//------------------------------------------------- +// intv_voice_device - constructor +//------------------------------------------------- + +const device_type INTV_ROM_VOICE = &device_creator<intv_voice_device>; + +intv_voice_device::intv_voice_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : intv_rom_device(mconfig, INTV_ROM_VOICE, "Intellivision Intellivoice Expansion", tag, owner, clock, "intv_voice", __FILE__), + m_speech(*this, "sp0256_speech"), + m_subslot(*this, "subslot"), + m_ramd0_enabled(false), + m_ram88_enabled(false) +{ +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void intv_voice_device::device_start() +{ +} + +void intv_voice_device::late_subslot_setup() +{ + switch (m_subslot->get_type()) + { + case INTV_RAM: + m_ramd0_enabled = true; + break; + case INTV_GFACT: + m_ram88_enabled = true; + break; + case INTV_VOICE: + printf("WARNING: You cannot connect serially multiple IntelliVoice units.\n"); + printf("WARNING: Emulation will likely misbehave.\n"); + break; + case INTV_ECS: + printf("WARNING: You cannot connect ECS to IntelliVoice in this manner.\n"); + printf("WARNING: Emulation will likely misbehave.\n"); + break; + case INTV_KEYCOMP: + printf("WARNING: You cannot connect the Keyboard component to the IntelliVoice unit.\n"); + printf("WARNING: Emulation will likely misbehave.\n"); + break; + } +} + + +//------------------------------------------------- +// MACHINE_CONFIG_FRAGMENT( intellivoice ) +//------------------------------------------------- + +static MACHINE_CONFIG_FRAGMENT( intellivoice ) + MCFG_SPEAKER_STANDARD_MONO("mono_voice") + + MCFG_SOUND_ADD("sp0256_speech", SP0256, 3120000) + /* The Intellivoice uses a speaker with its own volume control so the relative volumes to use are subjective */ + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono_voice", 1.00) + + MCFG_INTV_CARTRIDGE_ADD("subslot", intv_cart, NULL) +MACHINE_CONFIG_END + + +//------------------------------------------------- +// machine_config_additions - device-specific +// machine configurations +//------------------------------------------------- + +machine_config_constructor intv_voice_device::device_mconfig_additions() const +{ + return MACHINE_CONFIG_NAME( intellivoice ); +} + + +ROM_START( intellivoice ) + ROM_REGION( 0x10000, "sp0256_speech", 0 ) + /* SP0256-012 Speech chip w/2KiB mask rom */ + ROM_LOAD( "sp0256-012.bin", 0x1000, 0x0800, CRC(0de7579d) SHA1(618563e512ff5665183664f52270fa9606c9d289) ) +ROM_END + +const rom_entry *intv_voice_device::device_rom_region() const +{ + return ROM_NAME( intellivoice ); +} + +/*------------------------------------------------- + read_audio + -------------------------------------------------*/ + +READ16_MEMBER(intv_voice_device::read_speech) +{ + if (ACCESSING_BITS_0_7) + return m_speech->spb640_r(space, offset, mem_mask); + else + return 0xff; +} + +/*------------------------------------------------- + write_audio + -------------------------------------------------*/ + +WRITE16_MEMBER(intv_voice_device::write_speech) +{ + if (ACCESSING_BITS_0_7) + return m_speech->spb640_w(space, offset, data, mem_mask); +} |