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author | 2017-05-23 21:12:26 +0100 | |
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committer | 2017-05-23 21:12:26 +0100 | |
commit | 7eeae7892d6fec86b5466c22f66b6f464afcabfa (patch) | |
tree | 2e0b45c233c1b4c5fdc1bcacc53bcd7eb88e55e2 /src/devices/cpu/m6502 | |
parent | d0047a3ebefb03feca0c2f32a231cf956a48a30e (diff) |
basic VT03 support
Diffstat (limited to 'src/devices/cpu/m6502')
-rw-r--r-- | src/devices/cpu/m6502/n2a03.cpp | 16 | ||||
-rw-r--r-- | src/devices/cpu/m6502/n2a03.h | 3 |
2 files changed, 18 insertions, 1 deletions
diff --git a/src/devices/cpu/m6502/n2a03.cpp b/src/devices/cpu/m6502/n2a03.cpp index efb603b91aa..8c425cfaf73 100644 --- a/src/devices/cpu/m6502/n2a03.cpp +++ b/src/devices/cpu/m6502/n2a03.cpp @@ -129,9 +129,23 @@ const address_space_config *n2a03_device::memory_space_config(address_spacenum s } } + +WRITE_LINE_MEMBER(n2a03_device::apu_irq) +{ + // games relying on the APU_IRQ don't seem to work anyway? (nes software list : timelord, mig29sf, firehawk) + set_input_line(N2A03_APU_IRQ_LINE, state ? ASSERT_LINE : CLEAR_LINE); +} + +READ8_MEMBER(n2a03_device::apu_read_mem) +{ + return mintf->program->read_byte(offset); +} + static MACHINE_CONFIG_START( n2a03_device ) MCFG_SOUND_ADD("nesapu", NES_APU, DERIVED_CLOCK(1,1) ) - + MCFG_NES_APU_IRQ_HANDLER(WRITELINE(n2a03_device, apu_irq)) + MCFG_NES_APU_MEM_READ_CALLBACK(READ8(n2a03_device, apu_read_mem)) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, ":mono", 0.50) MACHINE_CONFIG_END diff --git a/src/devices/cpu/m6502/n2a03.h b/src/devices/cpu/m6502/n2a03.h index 54fc137c8e6..3b7d0bfcfd3 100644 --- a/src/devices/cpu/m6502/n2a03.h +++ b/src/devices/cpu/m6502/n2a03.h @@ -33,6 +33,9 @@ public: WRITE8_MEMBER(psg1_4015_w); WRITE8_MEMBER(psg1_4017_w); + DECLARE_WRITE_LINE_MEMBER(apu_irq); + DECLARE_READ8_MEMBER(apu_read_mem); + protected: class mi_2a03_normal : public memory_interface { public: |