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Diffstat (limited to 'src/devices/sound/ymopl.h')
-rw-r--r--src/devices/sound/ymopl.h41
1 files changed, 39 insertions, 2 deletions
diff --git a/src/devices/sound/ymopl.h b/src/devices/sound/ymopl.h
index 4d221529b4b..4ec8f605023 100644
--- a/src/devices/sound/ymopl.h
+++ b/src/devices/sound/ymopl.h
@@ -29,6 +29,8 @@ DECLARE_DEVICE_TYPE(Y8950, y8950_device);
class y8950_device : public ymfm_device_base<ymfm::y8950>, public device_rom_interface<21>
{
+ using parent = ymfm_device_base<ymfm::y8950>;
+
public:
// constructor
y8950_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
@@ -48,8 +50,8 @@ protected:
private:
// ADPCM read/write callbacks
- uint8_t ymfm_adpcm_b_read(offs_t address) override;
- void ymfm_adpcm_b_write(offs_t address, uint8_t data) override;
+ uint8_t ymfm_external_read(ymfm::access_class type, uint32_t address) override;
+ void ymfm_external_write(ymfm::access_class type, uint32_t address, uint8_t data) override;
};
@@ -81,6 +83,41 @@ public:
};
+// ======================> ymf278b_device
+
+DECLARE_DEVICE_TYPE(YMF278B, ymf278b_device);
+
+class ymf278b_device : public ymfm_device_base<ymfm::ymf278b>, public device_rom_interface<22>
+{
+ using parent = ymfm_device_base<ymfm::ymf278b>;
+
+public:
+ // constructor
+ ymf278b_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ // additional register reads
+ uint8_t data_pcm_r() { return update_streams().read_data_pcm(); }
+
+ // additional register writes
+ void address_hi_w(u8 data) { update_streams().write_address_hi(data); }
+ void data_hi_w(u8 data) { update_streams().write_data(data); }
+ void address_pcm_w(u8 data) { update_streams().write_address_pcm(data); }
+ void data_pcm_w(u8 data) { update_streams().write_data_pcm(data); }
+
+protected:
+ // device_rom_interface overrides
+ virtual void rom_bank_updated() override;
+
+ // sound overrides
+ virtual void sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs) override;
+
+private:
+ // ADPCM read/write callbacks
+ uint8_t ymfm_external_read(ymfm::access_class type, uint32_t address) override;
+ void ymfm_external_write(ymfm::access_class type, uint32_t address, uint8_t data) override;
+};
+
+
// ======================> ym2413_device
DECLARE_DEVICE_TYPE(YM2413, ym2413_device);