diff options
Diffstat (limited to 'src/mame/drivers/cedar_magnet_sound.cpp')
-rw-r--r-- | src/mame/drivers/cedar_magnet_sound.cpp | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/src/mame/drivers/cedar_magnet_sound.cpp b/src/mame/drivers/cedar_magnet_sound.cpp new file mode 100644 index 00000000000..a155762f13c --- /dev/null +++ b/src/mame/drivers/cedar_magnet_sound.cpp @@ -0,0 +1,168 @@ +// license:BSD-3-Clause +// copyright-holders:David Haywood + +/* + THIS IMPLEMENTATION IS ENTIRELY INCORRECT AND SHOULD NOT BE TRUSTED! +*/ + +#include "emu.h" +#include "cedar_magnet_sound.h" + + +extern const device_type CEDAR_MAGNET_SOUND = &device_creator<cedar_magnet_sound_device>; + + +cedar_magnet_sound_device::cedar_magnet_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : cedar_magnet_board_device(mconfig, CEDAR_MAGNET_SOUND, "Cedar Sound", tag, owner, clock, "cedmag_sound", __FILE__), + m_ctc0(*this, "ctc0"), + m_ctc1(*this, "ctc1") +{ +} + + +READ8_MEMBER(cedar_magnet_sound_device::top_port14_r) +{ +// UINT8 ret = m_command; +// m_command = 0; + return rand(); +} + +void cedar_magnet_sound_device::write_command(UINT8 data) +{ + m_command = data; + m_cpu->set_input_line(0, HOLD_LINE); +} + + +static ADDRESS_MAP_START( cedar_magnet_sound_map, AS_PROGRAM, 8, cedar_magnet_sound_device ) + AM_RANGE(0x0000, 0xffff) AM_RAM AM_SHARE("ram") +ADDRESS_MAP_END + +static ADDRESS_MAP_START( cedar_magnet_sound_io, AS_IO, 8, cedar_magnet_sound_device ) + ADDRESS_MAP_GLOBAL_MASK(0xff) + + AM_RANGE(0x00, 0x03) AM_DEVREADWRITE("ctc0", z80ctc_device, read, write) + AM_RANGE(0x04, 0x07) AM_DEVREADWRITE("ctc1", z80ctc_device, read, write) + + AM_RANGE(0x0c, 0x0c) AM_DEVWRITE("aysnd0", ay8910_device, address_w) + AM_RANGE(0x0d, 0x0d) AM_DEVWRITE("aysnd0", ay8910_device, data_w) + + AM_RANGE(0x10, 0x10) AM_DEVWRITE("aysnd1", ay8910_device, address_w) + AM_RANGE(0x11, 0x11) AM_DEVWRITE("aysnd1", ay8910_device, data_w) + + AM_RANGE(0x14, 0x14) AM_READ(top_port14_r) + +ADDRESS_MAP_END + + +WRITE_LINE_MEMBER(cedar_magnet_sound_device::ctc0_z0_w) +{ +// printf("USED ctc0_z0_w %d\n", state); +} + +WRITE_LINE_MEMBER(cedar_magnet_sound_device::ctc0_z1_w) +{ +// printf("USED ctc0_z1_w %d\n", state); +} + + +// I don't think any of the below are used + +WRITE_LINE_MEMBER(cedar_magnet_sound_device::ctc1_z0_w) +{ + printf("ctc1_z0_w %d\n", state); +} + +WRITE_LINE_MEMBER(cedar_magnet_sound_device::ctc1_z1_w) +{ + printf("ctc1_z1_w %d\n", state); +} + +WRITE_LINE_MEMBER(cedar_magnet_sound_device::ctc1_z2_w) +{ + printf("ctc1_z2_w %d\n", state); +} + +WRITE_LINE_MEMBER(cedar_magnet_sound_device::ctc0_z2_w) +{ + printf("ctc0_z2_w %d\n", state); +} + +WRITE_LINE_MEMBER(cedar_magnet_sound_device::ctc0_int_w) +{ + //printf("ctc0_int_w %d\n", state); +} + +WRITE_LINE_MEMBER(cedar_magnet_sound_device::ctc1_int_w) +{ +/* + switch (rand()&0x1) + { + case 0x00: + m_ctc0->trg0(rand()&1); + break; + case 0x01: + m_ctc0->trg1(rand()&1); + break; + } +*/ +} + +#if 0 +static const z80_daisy_config daisy_chain[] = +{ + { "ctc1" }, + { "ctc0" }, + { nullptr } +}; +#endif + +static MACHINE_CONFIG_FRAGMENT( cedar_magnet_sound ) + MCFG_CPU_ADD("topcpu", Z80,4000000) + MCFG_CPU_PROGRAM_MAP(cedar_magnet_sound_map) + MCFG_CPU_IO_MAP(cedar_magnet_sound_io) +// MCFG_Z80_DAISY_CHAIN(daisy_chain) + + MCFG_DEVICE_ADD("ctc0", Z80CTC, 4000000/8 ) + MCFG_Z80CTC_INTR_CB(WRITELINE(cedar_magnet_sound_device, ctc0_int_w)) + MCFG_Z80CTC_ZC0_CB(WRITELINE(cedar_magnet_sound_device, ctc0_z0_w)) + MCFG_Z80CTC_ZC1_CB(WRITELINE(cedar_magnet_sound_device, ctc0_z1_w)) + MCFG_Z80CTC_ZC2_CB(WRITELINE(cedar_magnet_sound_device, ctc0_z2_w)) + + MCFG_DEVICE_ADD("ctc1", Z80CTC, 4000000/8 ) + MCFG_Z80CTC_INTR_CB(INPUTLINE("topcpu", INPUT_LINE_IRQ0)) +// MCFG_Z80CTC_INTR_CB(DEVWRITELINE("ctc0", z80ctc_device, trg0)) + MCFG_Z80CTC_INTR_CB(WRITELINE(cedar_magnet_sound_device, ctc1_int_w)) + MCFG_Z80CTC_ZC0_CB(WRITELINE(cedar_magnet_sound_device, ctc1_z0_w)) + MCFG_Z80CTC_ZC1_CB(WRITELINE(cedar_magnet_sound_device, ctc1_z1_w)) + MCFG_Z80CTC_ZC2_CB(WRITELINE(cedar_magnet_sound_device, ctc1_z2_w)) + + MCFG_SPEAKER_STANDARD_MONO("mono") + + MCFG_SOUND_ADD("aysnd0", AY8910, 4000000/2) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.5) + + MCFG_SOUND_ADD("aysnd1", AY8910, 4000000/2) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.5) + + MCFG_SOUND_ADD("adpcm", MSM5205, 4000000/16) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) + +MACHINE_CONFIG_END + +machine_config_constructor cedar_magnet_sound_device::device_mconfig_additions() const +{ + return MACHINE_CONFIG_NAME( cedar_magnet_sound ); +} + +void cedar_magnet_sound_device::device_start() +{ + m_cpu = subdevice<z80_device>("topcpu"); + m_ram = (UINT8*)memshare("ram")->ptr(); +} + +void cedar_magnet_sound_device::device_reset() +{ + m_command = 0; + cedar_magnet_board_device::device_reset(); +} |