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#include "../copyright"
#ifndef _DSP4_H_
#define _DSP4_H_
/* 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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