mirror of
https://github.com/holub/mame
synced 2025-05-22 13:48:55 +03:00
d0f1c15a0f
Should be added soon: - mute - speaker/microphone resampling To be added a little later: - compression - reverb Needs to be added by someone else: - coreaudio - direct - portaudio - xaudio2 - js
125 lines
3.1 KiB
C++
125 lines
3.1 KiB
C++
// license:BSD-3-Clause
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// copyright-holders:Wilbert Pol
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/*****************************************************************************
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uPD177x
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******************************************************************************
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___ ___
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PB4 1 |* u | 28 PB3
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PB5 2 | | 27 PB2
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PB6 3 | | 26 PB1
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PB7 4 | | 25 PA8
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PB8 5 | u | 24 PA7
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/AC 6 | P | 23 PA6
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/PW ON 7 | D | 22 PA5
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Vdd 8 | 1 | 21 PA4
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X1 9 | 7 | 20 PA3
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X0 10 | 7 | 19 PA2
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SOUND2 11 | 1 | 18 PA1
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Vda 12 | | 17 CH2
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SOUND1 13 | | 16 /EXINT
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GND 14 |_______| 15 CH1
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****************************************************************************/
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#ifndef MAME_CPU_UPD177X_UPD177X_H
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#define MAME_CPU_UPD177X_UPD177X_H
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class upd177x_cpu_device : public cpu_device
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, public device_sound_interface
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{
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public:
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upd177x_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
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// configuration helpers
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auto pb_out_cb() { return m_pb_out_cb.bind(); }
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u8 pa_r() { return m_pa; }
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void pa_w(u8 data) { m_pa = data; }
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void pb_w(u8 data) { m_pb = data; }
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protected:
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upd177x_cpu_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock);
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virtual void device_start() override ATTR_COLD;
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virtual void device_reset() override ATTR_COLD;
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virtual u32 execute_min_cycles() const noexcept override { return 1; }
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virtual u32 execute_max_cycles() const noexcept override { return 2; }
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virtual uint32_t execute_default_irq_vector(int inputnum) const noexcept override { return 0xff; }
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virtual void execute_run() override;
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virtual space_config_vector memory_space_config() const override;
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virtual std::unique_ptr<util::disasm_interface> create_disassembler() override;
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virtual void sound_stream_update(sound_stream &stream) override;
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void program_map(address_map &map) ATTR_COLD;
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private:
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void op0xxx(u16 opcode);
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void op1xxx(u16 opcode);
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void op2xxx(u16 opcode);
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void op3xxx(u16 opcode);
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void op7xxx(u16 opcode);
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void op89xxx(u16 opcode);
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void opabxxx(u16 opcode);
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void opcdxxx(u16 opcode);
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void opefxxx(u16 opcode);
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void handle_timer();
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void set_noise_counter_bit();
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void m_cycle();
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address_space_config m_program_config;
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memory_access<16, 1, -1, ENDIANNESS_LITTLE>::specific m_program;
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devcb_write8 m_pb_out_cb;
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sound_stream *m_channel;
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int m_icount;
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u16 m_pc; // 16 bits
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u8 m_sp; // 3 bits
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u8 m_a; // 8 bits
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u8 m_a_save; // 8 bits
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u8 m_h; // 6 bits
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u8 m_n; // 8 bits
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u8 m_timer;
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u16 m_counter;
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u8 m_x; // 7 bits
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u8 m_y; // 5 bits
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u8 m_pa;
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u8 m_pb;
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u8 m_ram[0x40];
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u8 m_md0;
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u8 m_md1;
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u8 m_pnc1; // 7 bits
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u8 m_pnc2; // 3 bits
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bool m_skip;
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bool m_skip_save;
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bool m_ts;
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bool m_ns;
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bool m_ss;
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u8 m_dac;
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bool m_dac_sign;
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bool m_tn_int;
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u8 m_noise_counter_bit;
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};
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class upd1771c_cpu_device : public upd177x_cpu_device
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{
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public:
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upd1771c_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
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};
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DECLARE_DEVICE_TYPE(UPD1771C, upd1771c_cpu_device)
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#endif // MAME_CPU_UPD177X_UPD177X_H
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