// license:BSD-3-Clause // copyright-holders:Wilbert Pol /* pc cga/mda combi adapters one type hardware switchable between cga and mda/hercules another type software switchable between cga and mda/hercules some support additional modes like commodore pc10 320x200 in 16 colors // aga // 256 8x8 thick chars // 256 8x8 thin chars // 256 9x14 in 8x16 chars, line 3 is connected to a10 ROM_LOAD("aga.chr", 0x00000, 0x02000, CRC(aca81498)) // hercules font of above ROM_LOAD("hercules.chr", 0x00000, 0x1000, CRC(7e8c9d76)) */ #ifndef __ISA_AGA_H__ #define __ISA_AGA_H__ #include "emu.h" #include "isa.h" #include "cga.h" #include "video/mc6845.h" enum AGA_MODE { AGA_OFF, AGA_COLOR, AGA_MONO }; // ======================> isa8_aga_device class isa8_aga_device : public device_t, public device_isa8_card_interface { public: // construction/destruction isa8_aga_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); isa8_aga_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source); // device-level overrides virtual void device_start(); // optional information overrides virtual machine_config_constructor device_mconfig_additions() const; virtual const rom_entry *device_rom_region() const; virtual ioport_constructor device_input_ports() const; DECLARE_WRITE_LINE_MEMBER( hsync_changed ); DECLARE_WRITE_LINE_MEMBER( vsync_changed ); DECLARE_READ8_MEMBER( pc_aga_mda_r ); DECLARE_WRITE8_MEMBER( pc_aga_mda_w ); DECLARE_READ8_MEMBER( pc_aga_cga_r ); DECLARE_WRITE8_MEMBER( pc_aga_cga_w ); void set_palette_luts(void); void pc_aga_set_mode(AGA_MODE mode); DECLARE_WRITE8_MEMBER( pc_aga_videoram_w ); DECLARE_READ8_MEMBER( pc_aga_videoram_r ); MC6845_UPDATE_ROW( aga_update_row ); MC6845_UPDATE_ROW( mda_text_inten_update_row ); MC6845_UPDATE_ROW( mda_text_blink_update_row ); MC6845_UPDATE_ROW( cga_text_inten_update_row ); MC6845_UPDATE_ROW( cga_text_inten_alt_update_row ); MC6845_UPDATE_ROW( cga_text_blink_update_row ); MC6845_UPDATE_ROW( cga_text_blink_alt_update_row ); MC6845_UPDATE_ROW( cga_gfx_4bppl_update_row ); MC6845_UPDATE_ROW( cga_gfx_4bpph_update_row ); MC6845_UPDATE_ROW( cga_gfx_2bpp_update_row ); MC6845_UPDATE_ROW( cga_gfx_1bpp_update_row ); required_device m_palette; required_device m_mc6845; required_ioport m_cga_config; int m_update_row_type; AGA_MODE m_mode; UINT8 m_mda_mode_control; UINT8 m_mda_status; UINT8 *m_mda_chr_gen; UINT8 m_cga_mode_control; UINT8 m_cga_color_select; UINT8 m_cga_status; UINT8 *m_cga_chr_gen; int m_framecnt; UINT8 m_vsync; UINT8 m_hsync; UINT8 m_cga_palette_lut_2bpp[4]; UINT8 *m_videoram; }; // device type definition extern const device_type ISA8_AGA; // ======================> isa8_aga_pc200_device class isa8_aga_pc200_device : public isa8_aga_device { public: // construction/destruction isa8_aga_pc200_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); // device-level overrides virtual void device_start(); // optional information overrides virtual const rom_entry *device_rom_region() const; UINT8 m_port8; UINT8 m_portd; UINT8 m_porte; DECLARE_READ8_MEMBER( pc200_videoram_r ); DECLARE_WRITE8_MEMBER( pc200_videoram_w ); DECLARE_WRITE8_MEMBER( pc200_cga_w ); DECLARE_READ8_MEMBER( pc200_cga_r ); }; // device type definition extern const device_type ISA8_AGA_PC200; #endif