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Add Namco 163 sound emulation (#4814)
* Add Namco 163 sound emulation * namco_163.cpp : Typo * namco_163.cpp : Fix spacing * namco_163.h : Fix comment (nw) * namco_163.cpp : Correct update behavior device/bus/nes/namcot.* : Remove / Fix outdated comments * namco_163.cpp : Remove unnecessary value (nw) * namco_163.cpp : Add notes (nw) * namco_163.cpp : inline'd sample function, Minor fix * namco_163.cpp : Fix notes
This commit is contained in:
cam900
R. Belmont
parent
6dbd636a80
commit
80a48d5229
@ -590,6 +590,7 @@ end
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---------------------------------------------------
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-- Namco custom sound chips
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--@src/devices/sound/namco.h,SOUNDS["NAMCO"] = true
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--@src/devices/sound/namco_163.h,SOUNDS["NAMCO_163"] = true
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--@src/devices/sound/n63701x.h,SOUNDS["NAMCO_63701X"] = true
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--@src/devices/sound/c140.h,SOUNDS["C140"] = true
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--@src/devices/sound/c352.h,SOUNDS["C352"] = true
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@ -602,6 +603,13 @@ if (SOUNDS["NAMCO"]~=null or SOUNDS["NAMCO_15XX"]~=null or SOUNDS["NAMCO_CUS30"]
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}
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end
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if (SOUNDS["NAMCO_163"]~=null) then
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files {
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MAME_DIR .. "src/devices/sound/namco_163.cpp",
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MAME_DIR .. "src/devices/sound/namco_163.h",
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}
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end
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if (SOUNDS["NAMCO_63701X"]~=null) then
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files {
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MAME_DIR .. "src/devices/sound/n63701x.cpp",
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@ -173,6 +173,7 @@ SOUNDS["NAMCO_15XX"] = true
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SOUNDS["NAMCO_CUS30"] = true
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SOUNDS["NAMCO_52XX"] = true
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SOUNDS["NAMCO_63701X"] = true
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--SOUNDS["NAMCO_163"] = true
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SOUNDS["T6W28"] = true
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SOUNDS["SNKWAVE"] = true
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SOUNDS["C140"] = true
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@ -181,6 +181,7 @@ SOUNDS["ASTROCADE"] = true
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--SOUNDS["NAMCO_CUS30"] = true
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--SOUNDS["NAMCO_52XX"] = true
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--SOUNDS["NAMCO_63701X"] = true
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SOUNDS["NAMCO_163"] = true
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SOUNDS["T6W28"] = true
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--SOUNDS["SNKWAVE"] = true
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--SOUNDS["C140"] = true
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@ -16,7 +16,6 @@
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* Namcot 340 [mapper 210]
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TODO:
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- add sound feature of Namcot-163
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- Quinty is not working (same issue of Mendel Palace on TxROM boards, of course)
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***********************************************************************************************************/
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@ -26,6 +25,8 @@
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#include "namcot.h"
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#include "ui/uimain.h"
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#include "speaker.h"
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#ifdef NES_PCB_DEBUG
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#define VERBOSE 1
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#else
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@ -83,7 +84,7 @@ nes_namcot175_device::nes_namcot175_device(const machine_config &mconfig, const
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}
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nes_namcot163_device::nes_namcot163_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: nes_namcot340_device(mconfig, NES_NAMCOT163, tag, owner, clock), m_wram_protect(0), m_latch(0), m_chr_bank(0)
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: nes_namcot340_device(mconfig, NES_NAMCOT163, tag, owner, clock), m_wram_protect(0), m_latch(0), m_chr_bank(0), m_namco163snd(*this, "n163")
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{
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}
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@ -550,13 +551,11 @@ void nes_namcot175_device::write_h(offs_t offset, uint8_t data)
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Compared to Namcot-175 here we have mapper controlled
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mirroring, NTRAM mapping to VRAM and additional
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sound hw inside the chip (currently unemulated) and
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some internal RAM.
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sound hw inside the chip and some internal RAM.
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iNES: mapper 19
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In MESS: Supported (with no emulation of the
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sound component)
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In MESS: Supported
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-------------------------------------------------*/
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@ -614,7 +613,7 @@ void nes_namcot163_device::write_l(offs_t offset, uint8_t data)
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switch (offset & 0x1800)
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{
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case 0x0800:
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LOG_MMC(("Namcot-163 sound reg write, data: %02x\n", data));
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m_namco163snd->data_w(data);
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break;
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default:
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n340_lowrite(offset, data);
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@ -630,8 +629,7 @@ uint8_t nes_namcot163_device::read_l(offs_t offset)
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switch (offset & 0x1800)
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{
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case 0x0800:
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LOG_MMC(("Namcot-163 sound reg read\n"));
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return 0;
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return m_namco163snd->data_r();
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default:
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return n340_loread(offset);
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}
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@ -667,7 +665,7 @@ void nes_namcot163_device::write_h(offs_t offset, uint8_t data)
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set_mirror(page, data);
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break;
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case 0x6000:
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// TODO: data & 40 (or data & c0) disable sound if set
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m_namco163snd->disable_w((data & 0x40) ? ASSERT_LINE : CLEAR_LINE);
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prg8_89(data & 0x3f);
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break;
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case 0x6800:
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@ -677,10 +675,23 @@ void nes_namcot163_device::write_h(offs_t offset, uint8_t data)
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case 0x7800:
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// the lower 4 bits work *BOTH* as WRAM write protect *AND* as sound address!
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m_wram_protect = data & 0x0f;
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LOG_MMC(("Namcot-163 sound address write, data: %02x\n", data));
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m_namco163snd->addr_w(data);
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break;
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default:
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n340_hiwrite(offset, data);
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break;
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}
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}
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//-------------------------------------------------
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// device_add_mconfig - add device configuration
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//-------------------------------------------------
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void nes_namcot163_device::device_add_mconfig(machine_config &config)
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{
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// additional sound hardware
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SPEAKER(config, "addon").front_center();
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// TODO: Correct clock input / divider?
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NAMCO_163(config, m_namco163snd, XTAL(21'477'272)/12).add_route(ALL_OUTPUTS, "addon", 0.5);
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}
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@ -6,6 +6,7 @@
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#pragma once
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#include "nxrom.h"
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#include "sound/namco_163.h"
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// ======================> nes_namcot3433_device
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@ -157,11 +158,13 @@ protected:
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// device-level overrides
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virtual void device_start() override;
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virtual void device_add_mconfig(machine_config &config) override;
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private:
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void set_mirror(uint8_t page, uint8_t data);
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uint8_t m_wram_protect, m_latch, m_chr_bank;
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// TODO: add emulation of the sound part of the chip
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required_device<namco_163_sound_device> m_namco163snd;
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};
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176
src/devices/sound/namco_163.cpp
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176
src/devices/sound/namco_163.cpp
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@ -0,0 +1,176 @@
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// license:BSD-3-Clause
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// copyright-holders:cam900
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/***************************************************************************
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Namco 163 internal sound emulation by cam900
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4 bit wavetable (variable length), 1 ~ 8 channel
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Reference : https://wiki.nesdev.com/w/index.php/Namco_163_audio
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***************************************************************************/
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#include "emu.h"
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#include "namco_163.h"
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DEFINE_DEVICE_TYPE(NAMCO_163, namco_163_sound_device, "namco_163_sound", "Namco 163 (Sound)")
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namco_163_sound_device::namco_163_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
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: device_t(mconfig, NAMCO_163, tag, owner, clock)
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, device_sound_interface(mconfig, *this)
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, m_ram(nullptr)
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, m_reg_addr(0x78)
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, m_addr(0)
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, m_inc(false)
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, m_disable(false)
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, m_stream(nullptr)
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void namco_163_sound_device::device_start()
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{
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m_ram = make_unique_clear<u8[]>(0x80);
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m_stream = machine().sound().stream_alloc(*this, 0, 1, clock() / 15);
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save_pointer(NAME(m_ram), 0x80);
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save_item(NAME(m_reg_addr));
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save_item(NAME(m_addr));
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save_item(NAME(m_inc));
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save_item(NAME(m_disable));
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}
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//-------------------------------------------------
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// device_clock_changed - called if the clock
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// changes
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//-------------------------------------------------
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void namco_163_sound_device::device_clock_changed()
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{
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m_stream->set_sample_rate(clock() / 15);
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}
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inline s8 namco_163_sound_device::get_sample(u16 addr)
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{
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return ((m_ram[(addr >> 1) & 0x7f] >> ((addr & 1) << 2)) & 0xf) - 8;
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}
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WRITE_LINE_MEMBER(namco_163_sound_device::disable_w)
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{
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m_disable = state;
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}
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/********************************************************************************/
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/*
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Register Map (in RAM)
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40 ffff ffff Channel 0 Frequency bits 0 - 7
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41 pppp pppp Channel 0 Phase bits 0 - 7
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42 ffff ffff Channel 0 Frequency bits 8 - 15
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43 pppp pppp Channel 0 Phase bits 8 - 15
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44 ---- --ff Channel 0 Frequency bits 16 - 17
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llll ll-- Channel 0 Waveform Length (256 - (l * 4)) 4 bit samples
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45 pppp pppp Channel 0 Phase bits 16 - 23
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46 oooo oooo Channel 0 Waveform Offset at 4 bit samples
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47 ---- cccc Channel 0 Volume
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48 ffff ffff Channel 1 Frequency bits 0 - 7
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49 pppp pppp Channel 1 Phase bits 0 - 7
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4a ffff ffff Channel 1 Frequency bits 8 - 15
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4b pppp pppp Channel 1 Phase bits 8 - 15
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4c ---- --ff Channel 1 Frequency bits 16 - 17
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llll ll-- Channel 1 Waveform Length (256 - (l * 4)) 4 bit samples
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4d pppp pppp Channel 1 Phase bits 16 - 23
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4e oooo oooo Channel 1 Waveform Offset at 4 bit samples
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4f ---- cccc Channel 1 Volume
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.
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.
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.
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78 ffff ffff Channel 7 Frequency bits 0 - 7
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79 pppp pppp Channel 7 Phase bits 0 - 7
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7a ffff ffff Channel 7 Frequency bits 8 - 15
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7b pppp pppp Channel 7 Phase bits 8 - 15
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7c ---- --ff Channel 7 Frequency bits 16 - 17
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llll ll-- Channel 7 Waveform Length (256 - (l * 4)) 4 bit samples
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7d pppp pppp Channel 7 Phase bits 16 - 23
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7e oooo oooo Channel 7 Waveform Offset at 4 bit samples
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7f ---- cccc Channel 7 Volume
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-ccc ---- Enable channels
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-000 ---- Enable channel 7 only
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-001 ---- Enable channel 7, 6
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-010 ---- Enable channel 7, 6, 5
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.
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.
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.
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-111 ---- Enable all channels
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*/
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void namco_163_sound_device::addr_w(u8 data)
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{
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m_inc = data & 0x80;
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m_addr = data & 0x7f;
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}
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void namco_163_sound_device::data_w(u8 data)
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{
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m_stream->update();
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m_ram[m_addr] = data;
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if (m_inc)
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m_addr = (m_addr + 1) & 0x7f;
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}
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u8 namco_163_sound_device::data_r()
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{
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u8 val = m_ram[m_addr];
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if (m_inc)
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m_addr = (m_addr + 1) & 0x7f;
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return val;
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}
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void namco_163_sound_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
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{
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std::fill_n(&outputs[0][0], samples, 0);
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if (m_disable)
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return;
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// Slightly noisy but closer to real hardware behavior
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for (int s = 0; s < samples; s++)
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{
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u32 phase = (m_ram[m_reg_addr + 5] << 16) | (m_ram[m_reg_addr + 3] << 8) | m_ram[m_reg_addr + 1];
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const u32 freq = ((m_ram[m_reg_addr + 4] & 0x3) << 16) | (m_ram[m_reg_addr + 2] << 8) | m_ram[m_reg_addr + 0];
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const u16 length = 256 - (m_ram[m_reg_addr + 4] & 0xfc);
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const u16 offset = m_ram[m_reg_addr + 6];
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const u8 vol = m_ram[m_reg_addr + 7] & 0xf;
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phase = (phase + freq) % (length << 16);
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s32 output = get_sample((phase >> 16) + offset) * vol;
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m_ram[m_reg_addr + 1] = phase & 0xff;
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m_ram[m_reg_addr + 3] = phase >> 8;
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m_ram[m_reg_addr + 5] = phase >> 16;
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m_reg_addr += 8;
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if (m_reg_addr >= 0x80)
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{
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m_reg_addr = 0x78 - ((m_ram[0x7f] & 0x70) >> 1);
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}
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outputs[0][s] = (output << 8);
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}
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}
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42
src/devices/sound/namco_163.h
Normal file
42
src/devices/sound/namco_163.h
Normal file
@ -0,0 +1,42 @@
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// license:BSD-3-Clause
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// copyright-holders:cam900
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#ifndef MAME_SOUND_NAMCO_163_H
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#define MAME_SOUND_NAMCO_163_H
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#pragma once
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class namco_163_sound_device : public device_t,
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public device_sound_interface
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{
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public:
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namco_163_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
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DECLARE_WRITE_LINE_MEMBER(disable_w);
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void addr_w(u8 data);
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void data_w(u8 data);
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u8 data_r();
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protected:
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// device-level overrides
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virtual void device_start() override;
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virtual void device_clock_changed() override;
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// global sound parameters
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std::unique_ptr<u8[]> m_ram;
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u8 m_reg_addr;
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u8 m_addr;
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bool m_inc;
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bool m_disable;
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sound_stream *m_stream;
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// internals
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inline s8 get_sample(u16 addr);
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virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override;
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};
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DECLARE_DEVICE_TYPE(NAMCO_163, namco_163_sound_device)
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#endif // MAME_SOUND_NAMCO_163_H
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