// license:BSD-3-Clause // copyright-holders:Roberto Zandona' /************************************************************************* HD63484 ACRTC Advanced CRT Controller. **************************************************************************/ #ifndef __HD63484_H__ #define __HD63484_H__ /* the on-chip FIFO is 16 bytes long, but we use a larger one to simplify */ /* decoding of long commands. Commands can be up to 64KB long... but Shanghai */ /* doesn't reach that length. */ #define FIFO_LENGTH 256 #define HD63484_RAM_SIZE 0x100000 /*************************************************************************** TYPE DEFINITIONS ***************************************************************************/ class hd63484_device : public device_t { public: hd63484_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); ~hd63484_device() {} DECLARE_READ16_MEMBER( status_r ); DECLARE_WRITE16_MEMBER( address_w ); DECLARE_WRITE16_MEMBER( data_w ); DECLARE_READ16_MEMBER( data_r ); DECLARE_READ16_MEMBER( ram_r ); DECLARE_READ16_MEMBER( regs_r ); DECLARE_WRITE16_MEMBER( ram_w ); DECLARE_WRITE16_MEMBER( regs_w ); protected: // device-level overrides virtual void device_start(); virtual void device_reset(); private: // internal state UINT16 * m_ram; UINT16 m_reg[256/2]; int m_fifo_counter; UINT16 m_fifo[FIFO_LENGTH]; UINT16 m_readfifo; UINT16 m_pattern[16]; int m_org, m_org_dpd, m_rwp; UINT16 m_cl0, m_cl1, m_ccmp, m_edg, m_mask, m_ppy, m_pzcy, m_ppx, m_pzcx, m_psy, m_psx, m_pey, m_pzy, m_pex, m_pzx, m_xmin, m_ymin, m_xmax, m_ymax, m_rwp_dn; INT16 m_cpx, m_cpy; int m_regno; int m_skattva_hack; void doclr16( int opcode, UINT16 fill, int *dst, INT16 _ax, INT16 _ay ); void docpy16( int opcode, int src, int *dst, INT16 _ax, INT16 _ay ); int org_first_pixel( int _org_dpd ); void dot( int x, int y, int opm, UINT16 color ); int get_pixel( int x, int y ); int get_pixel_ptn( int x, int y ); void agcpy( int opcode, int src_x, int src_y, int dst_x, int dst_y, INT16 _ax, INT16 _ay ); void ptn( int opcode, int src_x, int src_y, INT16 _ax, INT16 _ay ); void line( INT16 sx, INT16 sy, INT16 ex, INT16 ey, INT16 col ); void circle( INT16 sx, INT16 sy, UINT16 r, INT16 col ); void paint( int sx, int sy, int col ); void command_w(UINT16 cmd); }; extern ATTR_DEPRECATED const device_type HD63484; #endif /* __HD63484_H__ */