// license:BSD-3-Clause // copyright-holders:Couriersud /*************************************************************************** Nintendo Donkey Kong hardware ***************************************************************************/ #include "sound/discrete.h" #include "machine/eepromser.h" #include "machine/tms6100.h" #include "cpu/m6502/n2a03.h" #include "machine/latch8.h" #include "machine/z80dma.h" #include "machine/i8257.h" #include "machine/watchdog.h" #include "screen.h" /* * From the schematics: * * XTAL is 61,44 MHZ. There is some oscillator logic around it. The oscillating circuit * transfers the signal with a transformator. Onwards, it is fed through a M(B/C)10136. This * is a programmable counter which is used as a divisor by 5. * Cascaded 74LS161 further divide the signal. The following signals are generated: * 1/2H: 61,44MHZ/5/2 - pixel clock * 1H : 61,44MHZ/5/4 - cpu-clock * 2H : 61,44MHZ/5/8 * .... * 128H: 61,44MHZ/5/512 * The horizontal circuit counts till 384=256+128, thus 256H only being high for 128H/2 * * Signal 16H,32H,64H and 256H are combined using a LS00, LS04 and a D-Flipflop to produce * a signal with Freq 16H/12. This is only possible because a 220pf capacitor with the * impedance of the LS-Family of 10K delays the 16H signal by about half a cycle. * This signal is divided by two by another D-Flipflop(74LS74) to give: * 1VF: 61,44MHZ/5/64/12/2 = 8KHZ * 2VF: 1VF/2 - Noise frequency: 4Khz * ... * The vertical circuit counts from 248 till 512 giving 264 lines. * 256VF is not being used, so counting is from 248...255, 0...255, .... */ #define MASTER_CLOCK XTAL(61'440'000) #define CLOCK_1H (MASTER_CLOCK / 5 / 4) #define CLOCK_16H (CLOCK_1H / 16) #define CLOCK_1VF ((CLOCK_16H) / 12 / 2) #define CLOCK_2VF ((CLOCK_1VF) / 2) #define PIXEL_CLOCK (MASTER_CLOCK/10) #define HTOTAL (384) #define HBSTART (256) #define HBEND (0) #define VTOTAL (264) #define VBSTART (240) #define VBEND (16) #define I8035_CLOCK (XTAL(6'000'000)) /**************************************************************************** * CONSTANTS ****************************************************************************/ #define HARDWARE_TYPE_TAG "HARDWARE_TYPE" enum { HARDWARE_TKG04 = 0, HARDWARE_TRS01, HARDWARE_TRS02, HARDWARE_TKG02 }; enum { DKONG_RADARSCP_CONVERSION = 0, DKONG_BOARD = 1 }; enum { DK2650_HERBIEDK = 0, DK2650_HUNCHBKD, DK2650_EIGHTACT, DK2650_SHOOTGAL, DK2650_SPCLFORC }; #define DK2B_PALETTE_LENGTH (256+256+8+1) /* (256) */ #define DK4B_PALETTE_LENGTH (256+256+8+1) /* (256) */ #define DK3_PALETTE_LENGTH (256+256+8+1) /* (256) */ #define RS_PALETTE_LENGTH (256+256+8+1) class dkong_state : public driver_device { public: dkong_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_soundcpu(*this, "soundcpu") , m_eeprom(*this, "eeprom") , m_dev_n2a03a(*this, "n2a03a") , m_dev_n2a03b(*this, "n2a03b") , m_dev_vp2(*this, "virtual_p2") , m_dev_6h(*this, "ls259.6h") , m_discrete(*this, "discrete") , m_watchdog(*this, "watchdog") , m_video_ram(*this,"video_ram") , m_sprite_ram(*this,"sprite_ram") , m_snd_rom(*this, "soundcpu") , m_vidhw(DKONG_BOARD) , m_sig30Hz(0) , m_blue_level(0) , m_cv1(0) , m_cv2(0) , m_vg1(0) , m_vg2(0) , m_vg3(0) , m_cv3(0) , m_cv4(0) , m_gfxdecode(*this, "gfxdecode") , m_screen(*this, "screen") , m_palette(*this, "palette") , m_z80dma(*this, "z80dma") , m_dma8257(*this, "dma8257") { } /* devices */ required_device m_maincpu; optional_device m_soundcpu; optional_device m_eeprom; optional_device m_dev_n2a03a; /* dkong3 */ optional_device m_dev_n2a03b; /* dkong3 */ optional_device m_dev_vp2; /* dkong2, virtual port 2 */ optional_device m_dev_6h; /* dkong2 */ optional_device m_discrete; optional_device m_watchdog; /* memory pointers */ required_shared_ptr m_video_ram; required_shared_ptr m_sprite_ram; /* machine states */ uint8_t m_hardware_type; uint8_t m_nmi_mask; std::unique_ptr m_decrypted; /* sound state */ optional_region_ptr m_snd_rom; /* video state */ tilemap_t *m_bg_tilemap; bitmap_ind16 m_bg_bits; const uint8_t * m_color_codes; emu_timer * m_scanline_timer; int8_t m_vidhw; /* Selected video hardware RS Conversion / TKG04 */ /* radar scope */ uint8_t * m_gfx4; uint8_t * m_gfx3; int m_gfx3_len; uint8_t m_sig30Hz; uint8_t m_lfsr_5I; uint8_t m_grid_sig; uint8_t m_rflip_sig; uint8_t m_star_ff; uint8_t m_blue_level; double m_cd4049_a; double m_cd4049_b; /* Specific states */ int8_t m_decrypt_counter; /* 2650 protection */ uint8_t m_protect_type; uint8_t m_hunchloopback; uint8_t m_prot_cnt; uint8_t m_main_fo; /* Save state relevant */ uint8_t m_gfx_bank; uint8_t m_palette_bank; uint8_t m_grid_on; uint16_t m_grid_col; uint8_t m_sprite_bank; uint8_t m_dma_latch; uint8_t m_flip; /* radarscp_step */ double m_cv1; double m_cv2; double m_vg1; double m_vg2; double m_vg3; double m_cv3; double m_cv4; double m_vc17; int m_pixelcnt; required_device m_gfxdecode; required_device m_screen; required_device m_palette; optional_device m_z80dma; optional_device m_dma8257; /* radarscp_scanline */ int m_counter; /* reverse address lookup map - hunchbkd */ int16_t m_rev_map[0x200]; DECLARE_READ8_MEMBER(hb_dma_read_byte); DECLARE_WRITE8_MEMBER(hb_dma_write_byte); DECLARE_WRITE8_MEMBER(dkong3_coin_counter_w); DECLARE_READ8_MEMBER(dkong_in2_r); DECLARE_READ8_MEMBER(s2650_mirror_r); DECLARE_WRITE8_MEMBER(s2650_mirror_w); DECLARE_READ8_MEMBER(epos_decrypt_rom); DECLARE_WRITE8_MEMBER(s2650_data_w); DECLARE_WRITE_LINE_MEMBER(s2650_fo_w); DECLARE_READ8_MEMBER(s2650_port0_r); DECLARE_READ8_MEMBER(s2650_port1_r); DECLARE_WRITE8_MEMBER(dkong3_2a03_reset_w); DECLARE_READ8_MEMBER(strtheat_inputport_0_r); DECLARE_READ8_MEMBER(strtheat_inputport_1_r); DECLARE_WRITE8_MEMBER(nmi_mask_w); DECLARE_WRITE8_MEMBER(dk_braze_a15_w); DECLARE_WRITE8_MEMBER(dkong_videoram_w); DECLARE_WRITE8_MEMBER(dkongjr_gfxbank_w); DECLARE_WRITE8_MEMBER(dkong3_gfxbank_w); DECLARE_WRITE8_MEMBER(dkong_palettebank_w); DECLARE_WRITE8_MEMBER(radarscp_grid_enable_w); DECLARE_WRITE8_MEMBER(radarscp_grid_color_w); DECLARE_WRITE8_MEMBER(dkong_flipscreen_w); DECLARE_WRITE8_MEMBER(dkong_spritebank_w); DECLARE_WRITE8_MEMBER(dkong_voice_w); DECLARE_WRITE8_MEMBER(dkong_audio_irq_w); DECLARE_READ8_MEMBER(p8257_ctl_r); DECLARE_WRITE8_MEMBER(p8257_ctl_w); DECLARE_WRITE8_MEMBER(p8257_drq_w); DECLARE_WRITE8_MEMBER(dkong_z80dma_rdy_w); DECLARE_READ8_MEMBER(braze_eeprom_r); DECLARE_WRITE8_MEMBER(braze_eeprom_w); DECLARE_WRITE_LINE_MEMBER(dk_braze_a15); void init_strtheat(); void init_herodk(); void init_dkingjr(); void init_drakton(); void init_dkonghs(); void init_dkongx(); void init_dkong3hs(); TILE_GET_INFO_MEMBER(dkong_bg_tile_info); TILE_GET_INFO_MEMBER(radarscp1_bg_tile_info); DECLARE_MACHINE_START(dkong2b); DECLARE_MACHINE_RESET(dkong); DECLARE_MACHINE_RESET(ddk); DECLARE_VIDEO_START(dkong); DECLARE_VIDEO_START(dkong_base); DECLARE_PALETTE_INIT(dkong2b); DECLARE_MACHINE_START(dkong3); DECLARE_PALETTE_INIT(dkong3); DECLARE_MACHINE_START(radarscp); DECLARE_PALETTE_INIT(radarscp); DECLARE_MACHINE_START(radarscp1); DECLARE_PALETTE_INIT(radarscp1); DECLARE_MACHINE_START(s2650); DECLARE_MACHINE_RESET(strtheat); DECLARE_MACHINE_RESET(drakton); DECLARE_WRITE8_MEMBER(M58817_command_w); DECLARE_READ8_MEMBER(dkong_voice_status_r); DECLARE_READ8_MEMBER(dkong_tune_r); DECLARE_WRITE8_MEMBER(dkong_p1_w); DECLARE_READ8_MEMBER(sound_t0_r); DECLARE_READ8_MEMBER(sound_t1_r); uint32_t screen_update_dkong(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); uint32_t screen_update_pestplce(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); uint32_t screen_update_spclforc(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); DECLARE_WRITE_LINE_MEMBER(s2650_interrupt); DECLARE_WRITE_LINE_MEMBER(vblank_irq); TIMER_CALLBACK_MEMBER(scanline_callback); DECLARE_WRITE_LINE_MEMBER(busreq_w); void braze_decrypt_rom(uint8_t *dest); void dk_braze_decrypt(); void drakton_decrypt_rom(uint8_t mod, int offs, int *bs); DECLARE_READ8_MEMBER(memory_read_byte); DECLARE_WRITE8_MEMBER(memory_write_byte); double CD4049(double x); void dkong_base(machine_config &config); void dk_braze(machine_config &config); void dkj_braze(machine_config &config); void ddk_braze(machine_config &config); void dk3_braze(machine_config &config); void strtheat(machine_config &config); void spclforc(machine_config &config); void s2650(machine_config &config); void dkongjr(machine_config &config); void radarscp1(machine_config &config); void drktnjr(machine_config &config); void dkong2b(machine_config &config); void drakton(machine_config &config); void radarscp(machine_config &config); void pestplce(machine_config &config); void herbiedk(machine_config &config); void dkong3(machine_config &config); void dkong3b(machine_config &config); void radarscp_audio(machine_config &config); void dkong2b_audio(machine_config &config); void dkongjr_audio(machine_config &config); void dkong3_audio(machine_config &config); void radarscp1_audio(machine_config &config); void dkong3_io_map(address_map &map); void dkong3_map(address_map &map); void dkong3_sound1_map(address_map &map); void dkong3_sound2_map(address_map &map); void dkong_map(address_map &map); void dkong_sound_io_map(address_map &map); void dkong_sound_map(address_map &map); void dkongjr_map(address_map &map); void dkongjr_sound_io_map(address_map &map); void epos_readport(address_map &map); void radarscp1_sound_io_map(address_map &map); void s2650_data_map(address_map &map); void s2650_io_map(address_map &map); void s2650_map(address_map &map); private: // video/dkong.c void radarscp_step(int line_cnt); void radarscp_scanline(int scanline); void check_palette(void); void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect, uint32_t mask_bank, uint32_t shift_bits); void radarscp_draw_background(bitmap_ind16 &bitmap, const rectangle &cliprect); };