diff options
Diffstat (limited to 'src/mess/machine/c64/magic_voice.c')
-rw-r--r-- | src/mess/machine/c64/magic_voice.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/mess/machine/c64/magic_voice.c b/src/mess/machine/c64/magic_voice.c new file mode 100644 index 00000000000..c9ca300def7 --- /dev/null +++ b/src/mess/machine/c64/magic_voice.c @@ -0,0 +1,162 @@ +/********************************************************************** + + Commodore Magic Voice cartridge emulation + + Copyright MESS Team. + Visit http://mamedev.org for licensing and usage restrictions. + +**********************************************************************/ + +#include "magic_voice.h" + + + +//************************************************************************** +// MACROS / CONSTANTS +//************************************************************************** + +#define T6721A_TAG "u5" +#define MOS6525_TAG "u2" + + + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +const device_type C64_MAGIC_VOICE = &device_creator<c64_magic_voice_cartridge_device>; + + +//------------------------------------------------- +// tpi6525_interface tpi_intf +//------------------------------------------------- + +static const tpi6525_interface tpi_intf = +{ + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL +}; + + +//------------------------------------------------- +// MACHINE_CONFIG_FRAGMENT( c64_magic_voice ) +//------------------------------------------------- + +static MACHINE_CONFIG_FRAGMENT( c64_magic_voice ) + MCFG_TPI6525_ADD(MOS6525_TAG, tpi_intf) + + MCFG_SPEAKER_STANDARD_MONO("mono") + MCFG_SOUND_ADD(T6721A_TAG, T6721A, XTAL_640kHz) + MCFG_T6721A_EOS_HANDLER(DEVWRITELINE(MOS6525_TAG, tpi6525_device, i2_w)) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) + + MCFG_C64_PASSTHRU_EXPANSION_SLOT_ADD() +MACHINE_CONFIG_END + + +//------------------------------------------------- +// machine_config_additions - device-specific +// machine configurations +//------------------------------------------------- + +machine_config_constructor c64_magic_voice_cartridge_device::device_mconfig_additions() const +{ + return MACHINE_CONFIG_NAME( c64_magic_voice ); +} + + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// c64_magic_voice_cartridge_device - constructor +//------------------------------------------------- + +c64_magic_voice_cartridge_device::c64_magic_voice_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : + device_t(mconfig, C64_MAGIC_VOICE, "C64 Magic Voice cartridge", tag, owner, clock, "c64_magic_voice", __FILE__), + device_c64_expansion_card_interface(mconfig, *this), + m_vslsi(*this, T6721A_TAG), + m_tpi(*this, MOS6525_TAG), + m_exp(*this, C64_EXPANSION_SLOT_TAG) +{ +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void c64_magic_voice_cartridge_device::device_start() +{ +} + + +//------------------------------------------------- +// device_reset - device-specific reset +//------------------------------------------------- + +void c64_magic_voice_cartridge_device::device_reset() +{ + m_tpi->reset(); +} + + +//------------------------------------------------- +// c64_cd_r - cartridge data read +//------------------------------------------------- + +UINT8 c64_magic_voice_cartridge_device::c64_cd_r(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2) +{ + data = m_exp->cd_r(space, offset, data, sphi2, ba, roml, romh, io1, io2); + + if (!io2 && BIT(offset, 7)) + { + m_tpi->read(space, offset & 0x07); + } + + return data; +} + + +//------------------------------------------------- +// c64_cd_w - cartridge data write +//------------------------------------------------- + +void c64_magic_voice_cartridge_device::c64_cd_w(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2) +{ + if (!io2 && BIT(offset, 7)) + { + m_tpi->write(space, offset & 0x07, data); + } + + m_exp->cd_w(space, offset, data, sphi2, ba, roml, romh, io1, io2); +} + + +//------------------------------------------------- +// c64_game_r - GAME read +//------------------------------------------------- + +int c64_magic_voice_cartridge_device::c64_game_r(offs_t offset, int sphi2, int ba, int rw, int hiram) +{ + return m_exp->game_r(offset, sphi2, ba, rw, hiram); +} + + +//------------------------------------------------- +// c64_exrom_r - EXROM read +//------------------------------------------------- + +int c64_magic_voice_cartridge_device::c64_exrom_r(offs_t offset, int sphi2, int ba, int rw, int hiram) +{ + return m_exp->exrom_r(offset, sphi2, ba, rw, hiram); +} |