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#include "../copyright"
#ifndef _DSP4_H_
#define _DSP4_H_
// debug
int32_t block; // current block number
extern int32_t c;
// op control
int8_t DSP4_Logic; // controls op flow
// projection format
const int16_t PLANE_START = 0x7fff; // starting distance
int16_t view_plane; // viewer location
int16_t far_plane; // next milestone into screen
int16_t segments; // # raster segments to draw
int16_t raster; // current raster line
int16_t project_x; // current x-position
int16_t project_y; // current y-position
int16_t project_centerx; // x-target of projection
int16_t project_centery; // y-target of projection
int16_t project_x1; // current x-distance
int16_t project_x1low; // lower 16-bits
int16_t project_y1; // current y-distance
int16_t project_y1low; // lower 16-bits
int16_t project_x2; // next projected x-distance
int16_t project_y2; // next projected y-distance
int16_t project_pitchx; // delta center
int16_t project_pitchxlow; // lower 16-bits
int16_t project_pitchy; // delta center
int16_t project_pitchylow; // lower 16-bits
int16_t project_focalx; // x-point of projection at viewer plane
int16_t project_focaly; // y-point of projection at viewer plane
int16_t project_ptr; // data structure pointer
// render window
int16_t center_x; // x-center of viewport
int16_t center_y; // y-center of viewport
int16_t viewport_left; // x-left of viewport
int16_t viewport_right; // x-right of viewport
int16_t viewport_top; // y-top of viewport
int16_t viewport_bottom; // y-bottom of viewport
// sprite structure
int16_t sprite_x; // projected x-pos of sprite
int16_t sprite_y; // projected y-pos of sprite
int16_t sprite_offset; // data pointer offset
int8_t sprite_type; // vehicle, terrain
bool sprite_size; // sprite size: 8x8 or 16x16
// path strips
int16_t path_clipRight[4]; // value to clip to for x>b
int16_t path_clipLeft[4]; // value to clip to for x<a
int16_t path_pos[4]; // x-positions of lanes
int16_t path_ptr[4]; // data structure pointers
int16_t path_raster[4]; // current raster
int16_t path_top[4]; // viewport_top
int16_t path_y[2]; // current y-position
int16_t path_x[2]; // current focals
int16_t path_plane[2]; // previous plane
// op09 window sorting
int16_t multi_index1; // index counter
int16_t multi_index2; // index counter
bool op09_mode; // window mode
// multi-op storage
int16_t multi_focaly[64]; // focal_y values
int16_t multi_farplane[4]; // farthest drawn distance
int16_t multi_raster[4]; // line where track stops
// OAM
int8_t op06_OAM[32]; // OAM (size,MSB) data
int8_t op06_index; // index into OAM table
int8_t op06_offset; // offset into OAM table
#endif
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