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Merge pull request #4826 from cam900/mmc5_temp

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devices/bus/nes/mmc5.cpp : Correct sound behavior
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R. Belmont 2019-03-30 11:44:23 -04:00 committed by GitHub
commit 2d1edb51cb
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2 changed files with 16 additions and 1 deletions
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16
src/devices/bus/nes/mmc5.cpp
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@ -18,6 +18,7 @@
#include "emu.h"
#include "mmc5.h"
#include "speaker.h"
#ifdef NES_PCB_DEBUG
#define VERBOSE 1
@ -46,7 +47,7 @@ nes_exrom_device::nes_exrom_device(const machine_config &mconfig, const char *ta
, m_prg_mode(0), m_chr_mode(0), m_wram_protect_1(0), m_wram_protect_2(0), m_exram_control(0), m_wram_base(0), m_last_chr(0), m_ex1_chr(0)
, m_split_chr(0), m_ex1_bank(0), m_high_chr(0), m_split_scr(0), m_split_rev(0), m_split_ctrl(0), m_split_yst(0), m_split_bank(0), m_vcount(0)
, m_ppu(*this, ":ppu") // FIXME: this dependency should not exist
, m_sound(*this, ":maincpu:nesapu") // FIXME: this is a hack, it should have extra channels, not pass to the existing APU!!!
, m_sound(*this, "mmc5snd") // FIXME: this is a hack, it should be separated device, similar not same as NES APU!!!
{
}
@ -677,3 +678,16 @@ void nes_exrom_device::write_h(offs_t offset, uint8_t data)
else if (!m_prgram.empty())
m_prgram[(((m_ram_hi_banks[bank] & 3) * 0x2000) + (offset & 0x1fff)) & (m_prgram.size() - 1)] = data;
}
//-------------------------------------------------
// device_add_mconfig - add device configuration
//-------------------------------------------------
void nes_exrom_device::device_add_mconfig(machine_config &config)
{
// additional sound hardware
SPEAKER(config, "addon").front_center();
// TODO: temporary; will be separated device
NES_APU(config, m_sound, XTAL(21'477'272)/12).add_route(ALL_OUTPUTS, "addon", 0.50);
}

1
src/devices/bus/nes/mmc5.h
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@ -36,6 +36,7 @@ public:
protected:
// device-level overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
void set_mirror(int page, int src);