diff options
Diffstat (limited to 'src/emu/bus/cpc/cpc_ssa1.c')
-rw-r--r-- | src/emu/bus/cpc/cpc_ssa1.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/src/emu/bus/cpc/cpc_ssa1.c b/src/emu/bus/cpc/cpc_ssa1.c new file mode 100644 index 00000000000..7e855493c66 --- /dev/null +++ b/src/emu/bus/cpc/cpc_ssa1.c @@ -0,0 +1,216 @@ +/* + * cpc_ssa1.c -- Amstrad SSA-1 Speech Synthesiser, dk'Tronics Speech Synthesiser + * + * Created on: 16/07/2011 + * + */ + + +#include "emu.h" +#include "cpc_ssa1.h" +#include "includes/amstrad.h" + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +const device_type CPC_SSA1 = &device_creator<cpc_ssa1_device>; +const device_type CPC_DKSPEECH = &device_creator<cpc_dkspeech_device>; + +CPC_EXPANSION_INTERFACE(sub_exp_intf) +{ + DEVCB_DEVICE_LINE_MEMBER("^^", cpc_expansion_slot_device, irq_w), + DEVCB_DEVICE_LINE_MEMBER("^^", cpc_expansion_slot_device, nmi_w), + DEVCB_NULL, // RESET + DEVCB_DEVICE_LINE_MEMBER("^^", cpc_expansion_slot_device, romdis_w), // ROMDIS + DEVCB_DEVICE_LINE_MEMBER("^^", cpc_expansion_slot_device, romen_w) // /ROMEN +}; + +//------------------------------------------------- +// device I/O handlers +//------------------------------------------------- + +READ8_MEMBER(cpc_ssa1_device::ssa1_r) +{ + UINT8 ret = 0xff; + + if(get_sby() == 0) + ret &= ~0x80; + + if(get_lrq() != 0) + ret &= ~0x40; + + return ret; +} + +WRITE8_MEMBER(cpc_ssa1_device::ssa1_w) +{ + m_sp0256_device->ald_w(space, 0, data); +} + +READ8_MEMBER(cpc_dkspeech_device::dkspeech_r) +{ + UINT8 ret = 0xff; + + // SBY is not connected + + if(get_lrq() != 0) + ret &= ~0x80; + + return ret; +} + +WRITE8_MEMBER(cpc_dkspeech_device::dkspeech_w) +{ + m_sp0256_device->ald_w(space, 0, data & 0x3f); +} + +WRITE_LINE_MEMBER(cpc_ssa1_device::lrq_cb) +{ + set_lrq(state); +} + +WRITE_LINE_MEMBER(cpc_ssa1_device::sby_cb) +{ + set_sby(state); +} + +WRITE_LINE_MEMBER(cpc_dkspeech_device::lrq_cb) +{ + set_lrq(state); +} + +WRITE_LINE_MEMBER(cpc_dkspeech_device::sby_cb) +{ + set_sby(state); +} + +//------------------------------------------------- +// Device ROM definition +//------------------------------------------------- + +// Has no actual ROM, just that internal to the SP0256 +ROM_START( cpc_ssa1 ) + ROM_REGION( 0x10000, "sp0256", 0 ) + ROM_LOAD( "sp0256-al2.bin", 0x1000, 0x0800, CRC(b504ac15) SHA1(e60fcb5fa16ff3f3b69d36c7a6e955744d3feafc) ) +ROM_END + +// Available in ROM and cassette versions. For now, we'll let the user choose to load the software via ROM (using a ROM box slot device) or cassette. +ROM_START( cpc_dkspeech ) + ROM_REGION( 0x10000, "sp0256", 0 ) + ROM_LOAD( "sp0256-al2.bin", 0x1000, 0x0800, CRC(b504ac15) SHA1(e60fcb5fa16ff3f3b69d36c7a6e955744d3feafc) ) +ROM_END + +//------------------------------------------------- +// rom_region - device-specific ROM region +//------------------------------------------------- + +const rom_entry *cpc_ssa1_device::device_rom_region() const +{ + return ROM_NAME( cpc_ssa1 ); +} + +const rom_entry *cpc_dkspeech_device::device_rom_region() const +{ + return ROM_NAME( cpc_dkspeech ); +} + +// device machine config +static MACHINE_CONFIG_FRAGMENT( cpc_ssa1 ) + MCFG_SPEAKER_STANDARD_MONO("mono") + MCFG_SOUND_ADD("sp0256",SP0256,XTAL_3_12MHz) + MCFG_SP0256_DATA_REQUEST_CB(WRITELINE(cpc_ssa1_device, lrq_cb)) + MCFG_SP0256_STANDBY_CB(WRITELINE(cpc_ssa1_device, sby_cb)) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00) + + // pass-through + MCFG_CPC_EXPANSION_SLOT_ADD("exp",sub_exp_intf,cpc_exp_cards,NULL) + +MACHINE_CONFIG_END + +static MACHINE_CONFIG_FRAGMENT( cpc_dkspeech ) + MCFG_SPEAKER_STANDARD_MONO("mono") + MCFG_SOUND_ADD("sp0256",SP0256,XTAL_4MHz) // uses the CPC's clock from pin 50 of the expansion port + MCFG_SP0256_DATA_REQUEST_CB(WRITELINE(cpc_dkspeech_device, lrq_cb)) + MCFG_SP0256_STANDBY_CB(WRITELINE(cpc_dkspeech_device, sby_cb)) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00) + + // pass-through + MCFG_CPC_EXPANSION_SLOT_ADD("exp",sub_exp_intf,cpc_exp_cards,NULL) + +MACHINE_CONFIG_END + +machine_config_constructor cpc_ssa1_device::device_mconfig_additions() const +{ + return MACHINE_CONFIG_NAME( cpc_ssa1 ); +} + +machine_config_constructor cpc_dkspeech_device::device_mconfig_additions() const +{ + return MACHINE_CONFIG_NAME( cpc_dkspeech ); +} + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +cpc_ssa1_device::cpc_ssa1_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : + device_t(mconfig, CPC_SSA1, "SSA-1", tag, owner, clock, "cpc_ssa1", __FILE__), + device_cpc_expansion_card_interface(mconfig, *this), + m_lrq(1), + m_sp0256_device(*this,"sp0256") +{ +} + +cpc_dkspeech_device::cpc_dkspeech_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : + device_t(mconfig, CPC_DKSPEECH, "DK'Tronics Speech Synthesiser", tag, owner, clock, "cpc_dkspeech", __FILE__), + device_cpc_expansion_card_interface(mconfig, *this), + m_lrq(1), + m_sp0256_device(*this,"sp0256") +{ +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void cpc_ssa1_device::device_start() +{ + device_t* cpu = machine().device("maincpu"); + address_space& space = cpu->memory().space(AS_IO); + m_slot = dynamic_cast<cpc_expansion_slot_device *>(owner()); + + m_rom = memregion("sp0256")->base(); + +// m_sp0256_device = subdevice("sp0256"); + + space.install_readwrite_handler(0xfaee,0xfaee,0,0,read8_delegate(FUNC(cpc_ssa1_device::ssa1_r),this),write8_delegate(FUNC(cpc_ssa1_device::ssa1_w),this)); + space.install_readwrite_handler(0xfbee,0xfbee,0,0,read8_delegate(FUNC(cpc_ssa1_device::ssa1_r),this),write8_delegate(FUNC(cpc_ssa1_device::ssa1_w),this)); +} + +void cpc_dkspeech_device::device_start() +{ + device_t* cpu = machine().device("maincpu"); + address_space& space = cpu->memory().space(AS_IO); + m_slot = dynamic_cast<cpc_expansion_slot_device *>(owner()); + + m_rom = memregion("sp0256")->base(); + +// m_sp0256_device = subdevice("sp0256"); + + space.install_readwrite_handler(0xfbfe,0xfbfe,0,0,read8_delegate(FUNC(cpc_dkspeech_device::dkspeech_r),this),write8_delegate(FUNC(cpc_dkspeech_device::dkspeech_w),this)); +} + +//------------------------------------------------- +// device_reset - device-specific reset +//------------------------------------------------- + +void cpc_ssa1_device::device_reset() +{ + m_sp0256_device->reset(); +} + +void cpc_dkspeech_device::device_reset() +{ + m_sp0256_device->reset(); +} |