1 // license:BSD-3-Clause 2 // copyright-holders:Mike Appolo 3 /************************************************************************* 4 5 Atari Major Havoc hardware 6 7 *************************************************************************/ 8 9 #include "machine/timer.h" 10 #include "sound/pokey.h" 11 #include "sound/tms5220.h" 12 13 #define MHAVOC_CLOCK 10000000 14 #define MHAVOC_CLOCK_5M (MHAVOC_CLOCK/2) 15 #define MHAVOC_CLOCK_2_5M (MHAVOC_CLOCK/4) 16 #define MHAVOC_CLOCK_1_25M (MHAVOC_CLOCK/8) 17 #define MHAVOC_CLOCK_625K (MHAVOC_CLOCK/16) 18 19 #define MHAVOC_CLOCK_156K (MHAVOC_CLOCK_625K/4) 20 #define MHAVOC_CLOCK_5K (MHAVOC_CLOCK_625K/16/8) 21 #define MHAVOC_CLOCK_2_4K (MHAVOC_CLOCK_625K/16/16) 22 23 24 class mhavoc_state : public driver_device 25 { 26 public: mhavoc_state(const machine_config & mconfig,device_type type,const char * tag)27 mhavoc_state(const machine_config &mconfig, device_type type, const char *tag) : 28 driver_device(mconfig, type, tag), 29 m_zram0(*this, "zram0"), 30 m_zram1(*this, "zram1"), 31 m_alpha(*this, "alpha"), 32 m_gamma(*this, "gamma"), 33 m_pokey(*this, "pokey%u", 1U), 34 m_tms(*this, "tms"), 35 m_lamps(*this, "lamp%u", 0U), 36 m_coin(*this, "COIN"), 37 m_service(*this, "SERVICE") 38 { } 39 40 void alphaone(machine_config &config); 41 void mhavoc(machine_config &config); 42 void mhavocrv(machine_config &config); 43 44 void init_mhavocrv(); 45 46 DECLARE_CUSTOM_INPUT_MEMBER(coin_service_r); 47 DECLARE_READ_LINE_MEMBER(gamma_rcvd_r); 48 DECLARE_READ_LINE_MEMBER(gamma_xmtd_r); 49 DECLARE_READ_LINE_MEMBER(alpha_rcvd_r); 50 DECLARE_READ_LINE_MEMBER(alpha_xmtd_r); 51 DECLARE_READ_LINE_MEMBER(clock_r); 52 53 private: 54 uint8_t dual_pokey_r(offs_t offset); 55 void dual_pokey_w(offs_t offset, uint8_t data); 56 void mhavoc_alpha_irq_ack_w(uint8_t data); 57 void mhavoc_gamma_irq_ack_w(uint8_t data); 58 void mhavoc_gamma_w(uint8_t data); 59 uint8_t mhavoc_alpha_r(); 60 void mhavoc_alpha_w(uint8_t data); 61 uint8_t mhavoc_gamma_r(); 62 void mhavoc_ram_banksel_w(uint8_t data); 63 void mhavoc_rom_banksel_w(uint8_t data); 64 void mhavoc_out_0_w(uint8_t data); 65 void alphaone_out_0_w(uint8_t data); 66 void mhavoc_out_1_w(uint8_t data); 67 void mhavocrv_speech_data_w(uint8_t data); 68 void mhavocrv_speech_strobe_w(uint8_t data); 69 uint8_t quad_pokeyn_r(offs_t offset); 70 void quad_pokeyn_w(offs_t offset, uint8_t data); 71 72 TIMER_CALLBACK_MEMBER(delayed_gamma_w); 73 TIMER_DEVICE_CALLBACK_MEMBER(mhavoc_cpu_irq_clock); 74 void alpha_map(address_map &map); 75 void alphaone_map(address_map &map); 76 void gamma_map(address_map &map); 77 78 virtual void machine_start() override; 79 virtual void machine_reset() override; 80 81 required_shared_ptr<uint8_t> m_zram0; 82 required_shared_ptr<uint8_t> m_zram1; 83 required_device<cpu_device> m_alpha; 84 optional_device<cpu_device> m_gamma; 85 optional_device_array<pokey_device, 4> m_pokey; 86 optional_device<tms5220_device> m_tms; 87 output_finder<2> m_lamps; 88 optional_ioport m_coin; 89 optional_ioport m_service; 90 91 uint8_t m_alpha_data; 92 uint8_t m_alpha_rcvd; 93 uint8_t m_alpha_xmtd; 94 uint8_t m_gamma_data; 95 uint8_t m_gamma_rcvd; 96 uint8_t m_gamma_xmtd; 97 uint8_t m_player_1; 98 uint8_t m_alpha_irq_clock; 99 uint8_t m_alpha_irq_clock_enable; 100 uint8_t m_gamma_irq_clock; 101 uint8_t m_has_gamma_cpu; 102 uint8_t m_speech_write_buffer; 103 }; 104