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alexbevi
GitHub Repository: alexbevi/BizHawk
 Path: blob/master/libsnes/bsnes/snes/alt/ppu-performance/mmio/mmio.hpp
2 views
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public:

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  uint8 mmio_read(unsigned addr);

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  void mmio_write(unsigned addr, uint8 data);

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private:

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struct Regs {

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  //internal

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  uint8 ppu1_mdr;

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  uint8 ppu2_mdr;

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  uint16 vram_readbuffer;

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  uint8 oam_latchdata;

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  uint8 cgram_latchdata;

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  uint8 bgofs_latchdata;

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  uint8 mode7_latchdata;

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  bool counters_latched;

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  bool latch_hcounter;

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  bool latch_vcounter;

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  //$2100

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  bool display_disable;

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  unsigned display_brightness;

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  //$2102-$2103

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  uint16 oam_baseaddr;

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  uint16 oam_addr;

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  bool oam_priority;

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  //$2105

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  bool bg3_priority;

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  unsigned bgmode;

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  //$210d

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  uint16 mode7_hoffset;

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  //$210e

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  uint16 mode7_voffset;

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  //$2115

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  bool vram_incmode;

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  unsigned vram_mapping;

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  unsigned vram_incsize;

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  //$2116-$2117

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  uint16 vram_addr;

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  //$211a

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  unsigned mode7_repeat;

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  bool mode7_vflip;

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  bool mode7_hflip;

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  //$211b-$2120

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  uint16 m7a;

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  uint16 m7b;

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  uint16 m7c;

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  uint16 m7d;

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  uint16 m7x;

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  uint16 m7y;

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  //$2121

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  uint16 cgram_addr;

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  //$2126-$212a

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  unsigned window_one_left;

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  unsigned window_one_right;

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  unsigned window_two_left;

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  unsigned window_two_right;

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  //$2133

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  bool mode7_extbg;

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  bool pseudo_hires;

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  bool overscan;

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  bool interlace;

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  //$213c

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  uint16 hcounter;

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  //$213d

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  uint16 vcounter;

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} regs;

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uint16 get_vram_addr();

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uint8 vram_read(unsigned addr);

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void vram_write(unsigned addr, uint8 data);

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uint8 oam_read(unsigned addr);

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void oam_write(unsigned addr, uint8 data);

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uint8 cgram_read(unsigned addr);

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void cgram_write(unsigned addr, uint8 data);

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void mmio_update_video_mode();

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void mmio_reset();

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