1 // license:GPL-2.0+ 2 // copyright-holders:Juergen Buchmueller, Krzysztof Strzecha, Robbbert 3 /***************************************************************************** 4 * 5 * ZX-80/ZX-81 and derivatives 6 * 7 ****************************************************************************/ 8 9 #ifndef MAME_INCLUDES_ZX_H 10 #define MAME_INCLUDES_ZX_H 11 12 #pragma once 13 14 #include "cpu/z80/z80.h" 15 #include "imagedev/cassette.h" 16 #include "machine/ram.h" 17 #include "sound/spkrdev.h" 18 19 #include "emupal.h" 20 #include "screen.h" 21 22 #include "formats/tzx_cas.h" 23 #include "formats/zx81_p.h" 24 25 26 class zx_state : public driver_device 27 { 28 public: zx_state(const machine_config & mconfig,device_type type,const char * tag)29 zx_state(const machine_config &mconfig, device_type type, const char *tag) : 30 driver_device(mconfig, type, tag), 31 m_maincpu(*this, "maincpu"), 32 m_ram(*this, RAM_TAG), 33 m_cassette(*this, "cassette"), 34 m_softlist(*this, "cass_list"), 35 m_speaker(*this, "speaker"), 36 m_region_maincpu(*this, "maincpu"), 37 m_region_gfx1(*this, "gfx1"), 38 m_io_row0(*this, "ROW0"), 39 m_io_row1(*this, "ROW1"), 40 m_io_row2(*this, "ROW2"), 41 m_io_row3(*this, "ROW3"), 42 m_io_row4(*this, "ROW4"), 43 m_io_row5(*this, "ROW5"), 44 m_io_row6(*this, "ROW6"), 45 m_io_row7(*this, "ROW7"), 46 m_io_config(*this, "CONFIG"), 47 m_screen(*this, "screen") 48 { } 49 50 void zx81(machine_config &config); 51 void zx81_spk(machine_config &config); 52 void ts1000(machine_config &config); 53 void pc8300(machine_config &config); 54 void pow3000(machine_config &config); 55 void ts1500(machine_config &config); 56 void zx80(machine_config &config); 57 58 void init_zx(); 59 60 private: 61 uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); 62 63 uint8_t ula_high_r(offs_t offset); 64 uint8_t ula_low_r(offs_t offset); 65 void refresh_w(offs_t offset, uint8_t data); 66 uint8_t zx80_io_r(offs_t offset); 67 uint8_t zx81_io_r(offs_t offset); 68 uint8_t pc8300_io_r(offs_t offset); 69 uint8_t pow3000_io_r(offs_t offset); 70 void zx80_io_w(offs_t offset, uint8_t data); 71 void zx81_io_w(offs_t offset, uint8_t data); 72 73 virtual void machine_reset() override; 74 virtual void video_start() override; 75 void zx_tape_input(); 76 void zx_ula_hsync(); 77 78 void pc8300_io_map(address_map &map); 79 void pow3000_io_map(address_map &map); 80 void ula_map(address_map &map); 81 void zx80_io_map(address_map &map); 82 void zx80_map(address_map &map); 83 void zx81_io_map(address_map &map); 84 void zx81_map(address_map &map); 85 86 enum 87 { 88 TIMER_TAPE_INPUT, 89 TIMER_ULA_HSYNC 90 }; 91 92 required_device<z80_device> m_maincpu; 93 required_device<ram_device> m_ram; 94 required_device<cassette_image_device> m_cassette; 95 required_device<software_list_device> m_softlist; 96 optional_device<speaker_sound_device> m_speaker; 97 required_memory_region m_region_maincpu; 98 optional_memory_region m_region_gfx1; 99 required_ioport m_io_row0; 100 required_ioport m_io_row1; 101 required_ioport m_io_row2; 102 required_ioport m_io_row3; 103 required_ioport m_io_row4; 104 required_ioport m_io_row5; 105 required_ioport m_io_row6; 106 required_ioport m_io_row7; 107 optional_ioport m_io_config; 108 required_device<screen_device> m_screen; 109 110 address_space *m_program; 111 emu_timer *m_tape_input, *m_ula_hsync; 112 113 bool m_vsync_active, m_hsync_active, m_nmi_on, m_nmi_generator_active; 114 uint64_t m_base_vsync_clock, m_vsync_start_time; 115 uint32_t m_ypos; 116 117 uint8_t m_prev_refresh; 118 uint8_t m_speaker_state; 119 120 std::unique_ptr<bitmap_ind16> m_bitmap_render; 121 std::unique_ptr<bitmap_ind16> m_bitmap_buffer; 122 123 uint16_t m_ula_char_buffer; 124 double m_cassette_cur_level; 125 126 virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; 127 128 void drop_sync(); 129 void recalc_hsync(); 130 }; 131 132 #endif // MAME_INCLUDES_ZX_H 133