dsp1.h

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#ifndef SNES_DSP1_H
#define SNES_DSP1_H
 
#include <snes/types.h>
 
/* Removed on 2026-10-05 (1.0 plan, lot C): dsp1Parameter, dsp1Present.
 * The replacements are in docs/UPGRADING.md; `make check-upgrade` names them. */

extern volatile s16 dsp1_o0;
extern volatile s16 dsp1_o1;  
extern volatile s16 dsp1_o2;  
extern volatile s16 dsp1_o3;  

#define DSP1_T_FROM_FIX(f)   ((s16)((s16)(f) << 7))
#define DSP1_FIX_FROM_T(t)   ((s16)((s16)(t) >> 7))
#define DSP1_A_FROM_FIX8(a)  ((u16)((u16)(u8)(a) << 8))

void dsp1Init(void);

s16 dsp1Multiply(s16 a, s16 b);

void dsp1Triangle(u16 angle, s16 radius);

void dsp1Rotate(u16 angle, s16 x, s16 y);

void dsp1Attitude(u16 scale, u16 az, u16 ay, u16 ax);

void dsp1Objective(s16 x, s16 y, s16 z);

typedef struct {
    s16 x;      
    s16 y;      
    s16 z;      
    s16 lfe;    
    s16 les;    
    u16 aas;    
    u16 azs;    
} Dsp1Camera;

void dsp1SetCamera(const Dsp1Camera *cam);

void dsp1Project(s16 x, s16 y, s16 z);

void dsp1Target(s16 h, s16 v);

void dsp1Raster(u8 FAR *ab, u8 FAR *cd, s16 vs, u16 count);

u16 dsp1Distance(s16 x, s16 y, s16 z);

s16 dsp1Range(s16 x, s16 y, s16 z, u16 r);

u8 dsp1IsPresent(void);
 
#endif /* SNES_DSP1_H */