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- New Z80 CPU derivate Toshiba TLCS-Z80 [Felipe Sanches]
- Improving emulation of SONY PVE-500 video editing station [Felipe Sanches]
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| /***************************************************************************** | ||
| * | ||
| * tlcs_z80.c | ||
| * TOSHIBA TLCS Z80 emulation | ||
| */ | ||
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| #include "emu.h" | ||
| #include "z80.h" | ||
| #include "machine/z80ctc.h" | ||
| #include "machine/z80pio.h" | ||
| #include "machine/z80sio.h" | ||
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| //TODO: These interfaces should default to DEVCB_NULL pointers and | ||
| // the actual callbacks should be provided by the driver that instantiates the TLCS-Z80 CPU. | ||
| // We need methods for the driver to provide these interface configurations to the CPU core. | ||
| // something like: | ||
| // m_tlcsz80->set_internal_ctc_interface (ctc_intf); | ||
| // m_tlcsz80->set_internal_pio_interface (pio_intf); | ||
| // m_tlcsz80->set_internal_sio_interface (sio_intf); | ||
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| static Z80CTC_INTERFACE( ctc_intf ) | ||
| { | ||
| DEVCB_CPU_INPUT_LINE(DEVICE_SELF_OWNER, INPUT_LINE_IRQ0), /* interrupt handler */ | ||
| DEVCB_NULL, /* ZC/TO0 callback */ | ||
| DEVCB_NULL, /* ZC/TO1 callback */ | ||
| DEVCB_NULL /* ZC/TO2 callback */ | ||
| }; | ||
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| static Z80PIO_INTERFACE( pio_intf ) | ||
| { | ||
| DEVCB_CPU_INPUT_LINE(DEVICE_SELF_OWNER, INPUT_LINE_IRQ0), | ||
| DEVCB_NULL, | ||
| DEVCB_NULL, | ||
| DEVCB_NULL, | ||
| DEVCB_NULL, | ||
| DEVCB_NULL, | ||
| DEVCB_NULL | ||
| }; | ||
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| static const z80sio_interface sio_intf = | ||
| { | ||
| DEVCB_CPU_INPUT_LINE(DEVICE_SELF_OWNER, INPUT_LINE_IRQ0), /* interrupt handler */ | ||
| DEVCB_NULL, /* DTR changed handler */ | ||
| DEVCB_NULL, /* RTS changed handler */ | ||
| DEVCB_NULL, /* BREAK changed handler */ | ||
| DEVCB_NULL, /* transmit handler */ | ||
| DEVCB_NULL /* receive handler */ | ||
| }; | ||
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| /* Daisy Chaining */ | ||
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| static const z80_daisy_config tlcsz80_daisy_chain[] = | ||
| { | ||
| { TLCSZ80_INTERNAL_CTC_TAG }, | ||
| { TLCSZ80_INTERNAL_PIO_TAG }, | ||
| { TLCSZ80_INTERNAL_SIO_TAG }, | ||
| { NULL } | ||
| }; | ||
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| static ADDRESS_MAP_START( tlcs_z80_internal_io_map, AS_IO, 8, tlcs_z80_device ) | ||
| AM_RANGE(0x10, 0x13) AM_DEVREADWRITE(TLCSZ80_INTERNAL_CTC_TAG, z80ctc_device, read, write) | ||
| AM_RANGE(0x18, 0x1B) AM_DEVREADWRITE(TLCSZ80_INTERNAL_SIO_TAG, z80sio_device, read, write) | ||
| AM_RANGE(0x1C, 0x1F) AM_DEVREADWRITE(TLCSZ80_INTERNAL_PIO_TAG, z80pio_device, read, write) | ||
| // AM_RANGE(0xF0, 0xF0) TODO: Watchdog Timer: Stand-by mode Register | ||
| // AM_RANGE(0xF1, 0xF1) TODO: Watchdog Timer: command Register | ||
| // AM_RANGE(0xF4, 0xF4) TODO: Daisy chain interrupt precedence Register | ||
| ADDRESS_MAP_END | ||
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| //This is wrong! | ||
| //We should use the same clock as declared in the TLCS_Z80 instantiation in the driver that uses it. | ||
| #define TLCS_Z80_CLOCK 8000000 | ||
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| static MACHINE_CONFIG_FRAGMENT( tlcs_z80 ) | ||
| MCFG_Z80CTC_ADD(TLCSZ80_INTERNAL_CTC_TAG, TLCS_Z80_CLOCK, ctc_intf) | ||
| MCFG_Z80SIO_ADD(TLCSZ80_INTERNAL_SIO_TAG, TLCS_Z80_CLOCK, sio_intf) | ||
| MCFG_Z80PIO_ADD(TLCSZ80_INTERNAL_PIO_TAG, TLCS_Z80_CLOCK, pio_intf) | ||
| MACHINE_CONFIG_END | ||
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| tlcs_z80_device::tlcs_z80_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) | ||
| : z80_device(mconfig, TLCS_Z80, "TLCS-Z80", tag, owner, clock, "tlcs_z80", __FILE__), | ||
| m_z80ctc(*this, TLCSZ80_INTERNAL_CTC_TAG), | ||
| m_io_space_config( "io", ENDIANNESS_LITTLE, 8, 8, 0, ADDRESS_MAP_NAME( tlcs_z80_internal_io_map ) ) | ||
| { } | ||
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| WRITE_LINE_MEMBER( tlcs_z80_device::ctc_trg0 ) { m_z80ctc->trg0(state ? 0 : 1); } | ||
| WRITE_LINE_MEMBER( tlcs_z80_device::ctc_trg1 ) { m_z80ctc->trg1(state ? 0 : 1); } | ||
| WRITE_LINE_MEMBER( tlcs_z80_device::ctc_trg2 ) { m_z80ctc->trg2(state ? 0 : 1); } | ||
| WRITE_LINE_MEMBER( tlcs_z80_device::ctc_trg3 ) { m_z80ctc->trg3(state ? 0 : 1); } | ||
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| machine_config_constructor tlcs_z80_device::device_mconfig_additions() const | ||
| { | ||
| return MACHINE_CONFIG_NAME( tlcs_z80 ); | ||
| } | ||
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| const device_type TLCS_Z80 = &device_creator<tlcs_z80_device>; | ||
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