diff options
Diffstat (limited to 'src/mame/audio/segam1audio.cpp')
-rw-r--r-- | src/mame/audio/segam1audio.cpp | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/src/mame/audio/segam1audio.cpp b/src/mame/audio/segam1audio.cpp deleted file mode 100644 index cce5ce2a3ae..00000000000 --- a/src/mame/audio/segam1audio.cpp +++ /dev/null @@ -1,145 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:R. Belmont -/*************************************************************************** - - Sega Model 1 sound board (68000 + 2x 315-5560 "MultiPCM") - - used for Model 1 and early Model 2 games - -***************************************************************************/ - -#include "emu.h" -#include "audio/segam1audio.h" - -#include "machine/clock.h" -#include "speaker.h" - -void segam1audio_device::segam1audio_map(address_map &map) -{ - map(0x000000, 0x03ffff).rom(); - map(0x080000, 0x09ffff).rom().region("sndcpu", 0x20000); // mirror of upper ROM socket - map(0xc20000, 0xc20003).rw(m_uart, FUNC(i8251_device::read), FUNC(i8251_device::write)).umask16(0x00ff); - map(0xc40000, 0xc40007).rw(m_multipcm_1, FUNC(multipcm_device::read), FUNC(multipcm_device::write)).umask16(0x00ff); - map(0xc40012, 0xc40013).nopw(); - map(0xc50000, 0xc50001).w(FUNC(segam1audio_device::m1_snd_mpcm_bnk1_w)); - map(0xc60000, 0xc60007).rw(m_multipcm_2, FUNC(multipcm_device::read), FUNC(multipcm_device::write)).umask16(0x00ff); - map(0xc70000, 0xc70001).w(FUNC(segam1audio_device::m1_snd_mpcm_bnk2_w)); - map(0xd00000, 0xd00007).rw(m_ym, FUNC(ym3438_device::read), FUNC(ym3438_device::write)).umask16(0x00ff); - map(0xf00000, 0xf0ffff).ram(); -} - -void segam1audio_device::mpcm1_map(address_map &map) -{ - map(0x000000, 0x0fffff).rom(); - map(0x100000, 0x1fffff).bankr(m_mpcmbank1); -} - -void segam1audio_device::mpcm2_map(address_map &map) -{ - map(0x000000, 0x0fffff).rom(); - map(0x100000, 0x1fffff).bankr(m_mpcmbank2); -} - -//************************************************************************** -// GLOBAL VARIABLES -//************************************************************************** - -DEFINE_DEVICE_TYPE(SEGAM1AUDIO, segam1audio_device, "segam1audio", "Sega Model 1 Sound Board") - -//------------------------------------------------- -// device_add_mconfig - add device configuration -//------------------------------------------------- - -void segam1audio_device::device_add_mconfig(machine_config &config) -{ - M68000(config, m_audiocpu, 10000000); // verified on real h/w - m_audiocpu->set_addrmap(AS_PROGRAM, &segam1audio_device::segam1audio_map); - - SPEAKER(config, "lspeaker").front_left(); - SPEAKER(config, "rspeaker").front_right(); - - YM3438(config, m_ym, 8000000); - m_ym->add_route(0, "lspeaker", 0.60); - m_ym->add_route(1, "rspeaker", 0.60); - - MULTIPCM(config, m_multipcm_1, 8000000); - m_multipcm_1->set_addrmap(0, &segam1audio_device::mpcm1_map); - m_multipcm_1->add_route(0, "lspeaker", 1.0); - m_multipcm_1->add_route(1, "rspeaker", 1.0); - - MULTIPCM(config, m_multipcm_2, 8000000); - m_multipcm_2->set_addrmap(0, &segam1audio_device::mpcm2_map); - m_multipcm_2->add_route(0, "lspeaker", 1.0); - m_multipcm_2->add_route(1, "rspeaker", 1.0); - - I8251(config, m_uart, 8000000); // T82C51, clock unknown - m_uart->rxrdy_handler().set_inputline(m_audiocpu, M68K_IRQ_2); - m_uart->txd_handler().set(FUNC(segam1audio_device::output_txd)); - - clock_device &uart_clock(CLOCK(config, "uart_clock", 500000)); // 16 times 31.25MHz (standard Sega/MIDI sound data rate) - uart_clock.signal_handler().set(m_uart, FUNC(i8251_device::write_txc)); - uart_clock.signal_handler().append(m_uart, FUNC(i8251_device::write_rxc)); -} - -//************************************************************************** -// LIVE DEVICE -//************************************************************************** - -//------------------------------------------------- -// segam1audio_device - constructor -//------------------------------------------------- - -segam1audio_device::segam1audio_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : - device_t(mconfig, SEGAM1AUDIO, tag, owner, clock), - m_audiocpu(*this, "sndcpu"), - m_multipcm_1(*this, "pcm1"), - m_multipcm_2(*this, "pcm2"), - m_ym(*this, "ymsnd"), - m_uart(*this, "uart"), - m_multipcm1_region(*this, "pcm1"), - m_multipcm2_region(*this, "pcm2"), - m_mpcmbank1(*this, "m1pcm1_bank"), - m_mpcmbank2(*this, "m1pcm2_bank"), - m_rxd_handler(*this) -{ -} - -//------------------------------------------------- -// device_start - device-specific startup -//------------------------------------------------- - -void segam1audio_device::device_start() -{ - m_rxd_handler.resolve_safe(); - m_mpcmbank1->configure_entries(0, 4, m_multipcm1_region->base(), 0x100000); - m_mpcmbank2->configure_entries(0, 4, m_multipcm2_region->base(), 0x100000); -} - -//------------------------------------------------- -// device_reset - device-specific reset -//------------------------------------------------- - -void segam1audio_device::device_reset() -{ - m_uart->write_cts(0); -} - -void segam1audio_device::m1_snd_mpcm_bnk1_w(uint16_t data) -{ - m_mpcmbank1->set_entry(data & 3); -} - -void segam1audio_device::m1_snd_mpcm_bnk2_w(uint16_t data) -{ - m_mpcmbank2->set_entry(data & 3); -} - -WRITE_LINE_MEMBER(segam1audio_device::write_txd) -{ - m_uart->write_rxd(state); -} - -WRITE_LINE_MEMBER(segam1audio_device::output_txd) -{ - m_rxd_handler(state); -} |