ARM NEON how can i change value with a index

问题

unsigned char changeValue(unsigned char pArray[256],unsigned char value)
{


return pArray[value];
}

how can I change this function with neon with about uint8x8_t??

thanks for your help!!

回答1:

You can't - NEON does not have gathered loads. The only case that you can handle like this is when you want to return 8 or 16 contiguous byte values.

来源：https://stackoverflow.com/questions/11502332/arm-neon-how-can-i-change-value-with-a-index