// license:BSD-3-Clause // copyright-holders:David Haywood /* Sega CD / Mega CD */ #ifndef MAME_MACHINE_MEGACD_H #define MAME_MACHINE_MEGACD_H #pragma once #include "cpu/m68000/m68000.h" #include "machine/lc89510.h" #include "machine/megacdcd.h" #include "sound/rf5c68.h" #include "screen.h" #include "tilemap.h" class sega_segacd_device : public device_t, public device_gfx_interface, public device_video_interface { public: template void set_hostcpu(T &&tag) { m_hostcpu.set_tag(std::forward(tag)); } // set some variables at start, depending on region (shall be moved to a device interface?) void set_framerate(int rate) { m_framerate = rate; } void set_total_scanlines(int total) { m_base_total_scanlines = total; } // this gets set at start only void update_total_scanlines(bool mode3) { m_total_scanlines = mode3 ? (m_base_total_scanlines * 2) : m_base_total_scanlines; } // this gets set at each EOF double get_framerate() { return has_screen() ? screen().frame_period().as_hz() : double(m_framerate); } DECLARE_READ16_MEMBER( segacd_dmaaddr_r ); DECLARE_WRITE16_MEMBER( segacd_dmaaddr_w ); DECLARE_WRITE16_MEMBER( scd_a12000_halt_reset_w ); DECLARE_READ16_MEMBER( scd_a12000_halt_reset_r ); DECLARE_READ16_MEMBER( scd_a12002_memory_mode_r ); void scd_a12002_memory_mode_w_8_15(u8 data); void scd_a12002_memory_mode_w_0_7(u8 data); DECLARE_WRITE16_MEMBER( scd_a12002_memory_mode_w ); DECLARE_READ16_MEMBER( segacd_sub_memory_mode_r ); void segacd_sub_memory_mode_w_8_15(u8 data); void segacd_sub_memory_mode_w_0_7(u8 data); DECLARE_WRITE16_MEMBER( segacd_sub_memory_mode_w ); DECLARE_READ16_MEMBER( segacd_comms_flags_r ); DECLARE_WRITE16_MEMBER( segacd_comms_flags_subcpu_w ); DECLARE_WRITE16_MEMBER( segacd_comms_flags_maincpu_w ); DECLARE_READ16_MEMBER( scd_4m_prgbank_ram_r ); DECLARE_WRITE16_MEMBER( scd_4m_prgbank_ram_w ); DECLARE_READ16_MEMBER( segacd_comms_main_part1_r ); DECLARE_WRITE16_MEMBER( segacd_comms_main_part1_w ); DECLARE_READ16_MEMBER( segacd_comms_main_part2_r ); DECLARE_WRITE16_MEMBER( segacd_comms_main_part2_w ); DECLARE_READ16_MEMBER( segacd_comms_sub_part1_r ); DECLARE_WRITE16_MEMBER( segacd_comms_sub_part1_w ); DECLARE_READ16_MEMBER( segacd_comms_sub_part2_r ); DECLARE_WRITE16_MEMBER( segacd_comms_sub_part2_w ); DECLARE_READ16_MEMBER( segacd_main_dataram_part1_r ); DECLARE_WRITE16_MEMBER( segacd_main_dataram_part1_w ); DECLARE_READ16_MEMBER( scd_hint_vector_r ); DECLARE_READ16_MEMBER( scd_a12006_hint_register_r ); DECLARE_WRITE16_MEMBER( scd_a12006_hint_register_w ); DECLARE_WRITE16_MEMBER( segacd_stopwatch_timer_w ); DECLARE_READ16_MEMBER( segacd_stopwatch_timer_r ); DECLARE_READ16_MEMBER( segacd_sub_led_ready_r ); DECLARE_WRITE16_MEMBER( segacd_sub_led_ready_w ); DECLARE_READ16_MEMBER( segacd_sub_dataram_part1_r ); DECLARE_WRITE16_MEMBER( segacd_sub_dataram_part1_w ); DECLARE_READ16_MEMBER( segacd_sub_dataram_part2_r ); DECLARE_WRITE16_MEMBER( segacd_sub_dataram_part2_w ); DECLARE_READ16_MEMBER( segacd_stampsize_r ); DECLARE_WRITE16_MEMBER( segacd_stampsize_w ); TILE_GET_INFO_MEMBER( get_stampmap_16x16_1x1_tile_info ); TILE_GET_INFO_MEMBER( get_stampmap_32x32_1x1_tile_info ); TILE_GET_INFO_MEMBER( get_stampmap_16x16_16x16_tile_info ); TILE_GET_INFO_MEMBER( get_stampmap_32x32_16x16_tile_info ); WRITE16_MEMBER( segacd_trace_vector_base_address_w ); READ16_MEMBER( segacd_imagebuffer_vdot_size_r ); WRITE16_MEMBER( segacd_imagebuffer_vdot_size_w ); READ16_MEMBER( segacd_stampmap_base_address_r ); WRITE16_MEMBER( segacd_stampmap_base_address_w ); READ16_MEMBER( segacd_imagebuffer_start_address_r ); WRITE16_MEMBER( segacd_imagebuffer_start_address_w ); READ16_MEMBER( segacd_imagebuffer_offset_r ); WRITE16_MEMBER( segacd_imagebuffer_offset_w ); READ16_MEMBER( segacd_imagebuffer_vcell_size_r ); WRITE16_MEMBER( segacd_imagebuffer_vcell_size_w ); READ16_MEMBER( segacd_imagebuffer_hdot_size_r ); WRITE16_MEMBER( segacd_imagebuffer_hdot_size_w ); READ16_MEMBER( segacd_irq3timer_r ); WRITE16_MEMBER( segacd_irq3timer_w ); READ8_MEMBER( backupram_r ); WRITE8_MEMBER( backupram_w ); READ8_MEMBER( font_color_r ); WRITE8_MEMBER( font_color_w ); READ16_MEMBER( font_converted_r ); void segacd_map(address_map &map); void segacd_pcm_map(address_map &map); protected: sega_segacd_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); // optional information overrides virtual void device_add_mconfig(machine_config &config) override; required_device m_scdcpu; required_device m_hostcpu; required_device m_rfsnd; required_device m_lc89510_temp; required_device m_stopwatch_timer; required_device m_stamp_timer; required_device m_irq3_timer; required_device m_dma_timer; //required_device m_hock_timer; required_shared_ptr m_prgram; required_shared_ptr m_dataram; required_shared_ptr m_font_bits; // can't use a memshare because it's 8-bit RAM in a 16-bit address space std::vector m_backupram; uint8_t m_font_color; uint16_t scd_rammode; uint32_t scd_mode_dmna_ret_flags ; tilemap_t *segacd_stampmap[4]; uint8_t segacd_ram_writeprotect_bits; int segacd_4meg_prgbank;// = 0; // which bank the MainCPU can see of the SubCPU PrgRAM int segacd_memory_priority_mode;// = 0; int segacd_stampsize; uint16_t segacd_hint_register; uint16_t segacd_imagebuffer_vdot_size; uint16_t segacd_imagebuffer_vcell_size; uint16_t segacd_imagebuffer_hdot_size; int segacd_conversion_active;// = 0; uint16_t segacd_stampmap_base_address; uint16_t segacd_imagebuffer_start_address; uint16_t segacd_imagebuffer_offset; uint16_t segacd_comms_flags;// = 0x0000; uint16_t segacd_comms_part1[0x8]; uint16_t segacd_comms_part2[0x8]; int segacd_redled;// = 0; int segacd_greenled;// = 0; int segacd_ready;// = 1; // actually set 100ms after startup? uint8_t m_irq3_timer_reg; inline void write_pixel(uint8_t pix, int pixeloffset); uint16_t segacd_1meg_mode_word_read(int offset, uint16_t mem_mask); void segacd_1meg_mode_word_write(int offset, uint16_t data, uint16_t mem_mask, int use_pm); uint16_t m_dmaaddr; uint16_t m_a12000_halt_reset_reg; int m_framerate; int m_base_total_scanlines; int m_total_scanlines; void segacd_mark_tiles_dirty(int offset); int segacd_get_active_stampmap_tilemap(void); void SCD_GET_TILE_INFO_16x16_1x1( int& tile_region, int& tileno, int tile_index ); void SCD_GET_TILE_INFO_32x32_1x1( int& tile_region, int& tileno, int tile_index ); void SCD_GET_TILE_INFO_16x16_16x16( int& tile_region, int& tileno, int tile_index ); void SCD_GET_TILE_INFO_32x32_16x16( int& tile_region, int& tileno, int tile_index ); uint8_t get_stampmap_16x16_1x1_tile_info_pixel(int xpos, int ypos); uint8_t get_stampmap_32x32_1x1_tile_info_pixel(int xpos, int ypos); uint8_t get_stampmap_16x16_16x16_tile_info_pixel(int xpos, int ypos); uint8_t get_stampmap_32x32_16x16_tile_info_pixel(int xpos, int ypos); uint8_t read_pixel_from_stampmap(bitmap_ind16* srcbitmap, int x, int y); virtual void device_start() override; virtual void device_reset() override; TIMER_DEVICE_CALLBACK_MEMBER( dma_timer_callback ); IRQ_CALLBACK_MEMBER(segacd_sub_int_callback); TIMER_DEVICE_CALLBACK_MEMBER( irq3_timer_callback ); TIMER_DEVICE_CALLBACK_MEMBER( stamp_timer_callback ); void SegaCD_CDC_Do_DMA( int &dmacount, uint8_t *CDC_BUFFER, uint16_t &dma_addrc, uint16_t &destination ); }; class sega_segacd_us_device : public sega_segacd_device { public: sega_segacd_us_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); }; class sega_segacd_japan_device : public sega_segacd_device { public: sega_segacd_japan_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); }; class sega_segacd_europe_device : public sega_segacd_device { public: sega_segacd_europe_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); }; DECLARE_DEVICE_TYPE(SEGA_SEGACD_US, sega_segacd_us_device) DECLARE_DEVICE_TYPE(SEGA_SEGACD_JAPAN, sega_segacd_japan_device) DECLARE_DEVICE_TYPE(SEGA_SEGACD_EUROPE, sega_segacd_europe_device) #endif // MAME_MACHINE_MEGACD_H