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Use arm neon operation to improve memory copy speed
2022-07-05 08:47:00 【hankfu】
stay arm CPU On , Use arm Neon operation , Can improve memory copy speed .
First include Neon The header file arm_neon.h.
#include <arm_neon.h>
Reuse Neon operation .
p_u8x16_buffer = (volatile uint8x16_t* )p_u8_buffer;
for( i=0; i<i_data_num; i++ )
{
vst1q_u8( (uint8_t *) &p_u8x16_buffer[i], vrst16);
}
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