diff options
Diffstat (limited to 'src/devices/sound/315-5641.h')
-rw-r--r-- | src/devices/sound/315-5641.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/devices/sound/315-5641.h b/src/devices/sound/315-5641.h index a7cec0e2b28..2f986a912f0 100644 --- a/src/devices/sound/315-5641.h +++ b/src/devices/sound/315-5641.h @@ -1,5 +1,5 @@ // license:BSD-3-Clause -// copyright-holders:Angelo Salese +// copyright-holders:Valley Bell /* Sega 315-5641 / D77591 / 9442CA010 */ // this is the PICO sound chip, we are not sure if it's the same as a 7759 or not, it requires FIFO logic @@ -13,25 +13,32 @@ #include "upd7759.h" -class sega_315_5641_pcm_device : public upd7756_device +class sega_315_5641_pcm_device : public upd7759_device { public: sega_315_5641_pcm_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + auto fifo_cb() { return m_fifocallback.bind(); } virtual void port_w(u8 data) override; + void fifo_reset_w(u8 data); uint8_t get_fifo_space(); protected: // device-level overrides + virtual void internal_start_w(int state) override; + virtual void device_start() override; virtual void device_reset() override; virtual void advance_state() override; + devcb_write_line m_fifocallback; uint8_t m_fifo_data[0x40]; uint8_t m_fifo_read; // last read offset (will read in m_fifo_read+1) uint8_t m_fifo_write; // write offset + bool m_fifo_reset; + bool m_fifo_empty; }; DECLARE_DEVICE_TYPE(SEGA_315_5641_PCM, sega_315_5641_pcm_device) |