Reciprocal ================= 逐元素计算输入数据的倒数。 .. math:: output_i = \frac{1}{Input_i} 输入: - **Input** - 输入数据地址。 - **length** - 计算长度。 - **core_mask(int, 可选)** - 核掩码(仅适用于共享存储版本)。 输出: - **output** - 计算结果地址。 支持平台: ``FT78NE`` ``MT7004`` .. note:: - FT78NE 支持 int8, int16, int32, fp32, fp64, cplx64, cplx128 - MT7004 支持 fp16, fp32, int16, int32, cplx64 - 当输入为 0 时,输出结果为无穷大或未定义值,需由上层逻辑处理。 **共享存储版本:** .. c:function:: void i8_reciprocal_s(int8_t* Input, float* output, int length, int core_mask) .. c:function:: void i16_reciprocal_s(int16_t* Input, float* output, int length, int core_mask) .. c:function:: void i32_reciprocal_s(int32_t* Input, float* output, int length, int core_mask) .. c:function:: void hp_reciprocal_s(half* Input, half* output, int length, int core_mask) .. c:function:: void fp_reciprocal_s(float* Input, float* output, int length, int core_mask) .. c:function:: void dp_reciprocal_s(double* Input, double* output, int length, int core_mask) .. c:function:: void c64_reciprocal_s(float* Input, float* output, int length, int core_mask) .. c:function:: void c128_reciprocal_s(double* Input, double* output, int length, int core_mask) **C调用示例:** .. code-block:: c :linenos: :emphasize-lines: 9 //FT78NE示例 #include int main(int argc, char* argv[]) { float *input = (float *)0xA0000000; //input在DDR空间 float *output = (float *)0xB0000000; int length = 1000; int core_mask = 0xff; fp_reciprocal_s(input, output, length, core_mask); return 0; } **私有存储版本:** .. c:function:: void i8_reciprocal_p(int8_t* Input, float* output, int length) .. c:function:: void i16_reciprocal_p(int16_t* Input, float* output, int length) .. c:function:: void i32_reciprocal_p(int32_t* Input, float* output, int length) .. c:function:: void hp_reciprocal_p(half* Input, half* output, int length) .. c:function:: void fp_reciprocal_p(float* Input, float* output, int length) .. c:function:: void dp_reciprocal_p(double* Input, double* output, int length) .. c:function:: void c64_reciprocal_p(float* Input, float* output, int length) .. c:function:: void c128_reciprocal_p(double* Input, double* output, int length) **C调用示例:** .. code-block:: c :linenos: :emphasize-lines: 8 //MT7004示例 #include int main(int argc, char* argv[]) { float *input = (float *)0x10000000; float *output = (float *)0x10001000; int length = 1000; fp_reciprocal_p(input, output, length); return 0; }