vect_dsp16_sub_at32uc.c File Reference

#include "dsp.h"
#include "preprocessor.h"

Macros
#define	ASM_INSTRUCT_COMPACKED(str)   str
#define	ASM_INSTRUCT_EXTENDED(str)   str
#define	DSP16_SUB_END_KERNEL_X_FCT(x_num, data)   __attribute__((__naked__)) DSP16_SUB_END_KERNEL_X_FCT__(x_num, data)
#define	DSP16_SUB_END_KERNEL_X_FCT__(x_num, data)
#define	DSP16_SUBTRACTION_0(r_vect1, r_vect2, r_vect3)
#define	DSP16_SUBTRACTION_1(r_vect1, r_vect2, r_vect3)
#define	DSP16_SUBTRACTION_2(r_vect1, r_vect2, r_vect3)
#define	DSP16_SUBTRACTION_3(r_vect1, r_vect2, r_vect3)

Functions
void	dsp16_vect_sub (dsp16_t *vect1, dsp16_t *vect2, dsp16_t *vect3, int size)
	16-bit fixed point version of the vector subtraction function. More...
static int	dsp16_vect_sub_kernel_ext (dsp16_t *vect1, dsp16_t *vect2, dsp16_t *vect3, int size)
	avr32-uc3 16 bit version More...

#define ASM_INSTRUCT_COMPACKED

(

str

)

str

Referenced by dsp16_vect_sub_kernel_ext().

#define ASM_INSTRUCT_EXTENDED

(

str

)

str

#define DSP16_SUB_END_KERNEL_X_FCT	(		x_num,
			data
	)		__attribute__((__naked__)) DSP16_SUB_END_KERNEL_X_FCT__(x_num, data)

#define DSP16_SUB_END_KERNEL_X_FCT__	(		x_num,
			data
	)

Value:

static void TPASTE2(dsp16_vect_sub_end_kernel_x, x_num)(dsp16_t *vect1, dsp16_t *vect2, dsp16_t *vect3) \
{ \
  __asm__ __volatile__ ( \
    "pushm  r0-r3, lr\n\t" \
    TPASTE2(DSP16_SUBTRACTION_, x_num)(r12, r11, r10) \
    "popm  r0-r3, pc\n\t" \
  ); \
}

#define DSP16_SUBTRACTION_0	(		r_vect1,
			r_vect2,
			r_vect3
	)

#define DSP16_SUBTRACTION_1	(		r_vect1,
			r_vect2,
			r_vect3
	)

Value:

"ld.sh  r2, "ASTRINGZ(r_vect2)"[0x0]\n\t" \
        "ld.sh  r3, "ASTRINGZ(r_vect3)"[0x0]\n\t" \
\
        "sub    r1, r2, r3\n\t" \
        "st.h   "ASTRINGZ(r_vect1)"[0x0], r1\n\t"

#define DSP16_SUBTRACTION_2	(		r_vect1,
			r_vect2,
			r_vect3
	)

Value:

"ld.w   r2, "ASTRINGZ(r_vect2)"[0x0]\n\t" \
        "ld.w   r3, "ASTRINGZ(r_vect3)"[0x0]\n\t" \
\
        "subhh.w r1, r2:b, r3:b\n\t" \
        "subhh.w r0, r2:t, r3:t\n\t" \
        "sthh.w  "ASTRINGZ(r_vect1)"[0x0], r0:b, r1:b\n\t"

#define DSP16_SUBTRACTION_3	(		r_vect1,
			r_vect2,
			r_vect3
	)

Value:

"ld.w   r2, "ASTRINGZ(r_vect2)"[0x0]\n\t" \
        "ld.w   r3, "ASTRINGZ(r_vect3)"[0x0]\n\t" \
\
        "subhh.w r1, r2:b, r3:b\n\t" \
        "subhh.w r0, r2:t, r3:t\n\t" \
        "sthh.w  "ASTRINGZ(r_vect1)"[0x0], r0:b, r1:b\n\t" \
\
        "ld.sh  r2, "ASTRINGZ(r_vect2)"[0x4]\n\t" \
        "ld.sh  r3, "ASTRINGZ(r_vect3)"[0x4]\n\t" \
\
        "sub    r1, r2, r3\n\t" \
        "st.h   "ASTRINGZ(r_vect1)"[0x4], r1\n\t"

static int dsp16_vect_sub_kernel_ext ( dsp16_t *  vect1, dsp16_t *  vect2, dsp16_t *  vect3, int  size  )

static

avr32-uc3 16 bit version

References ASM_INSTRUCT_COMPACKED.

Referenced by dsp16_vect_sub().