Fixed Point Unary Functions

okk_bdc_fixed_point_packed_16bit_split_high_8bit

void okk_bdc_fixed_point_packed_16bit_split_high_8bit(local_addr_t dst_addr, local_addr_t src_addr, const dim4 *shape, const dim4 *dst_stride, const dim4 *src_stride)

Split the most significant 8 bits from the elements of the source tensor of 16-bit data type.

Parameters

  • dst_addr – Address of the destination tensor.

  • src_addr – Address of the source tensor.

  • shape – Pointer to the shape of the destination and source tensors.

  • dst_stride – Pointer to the stride of the destination tensor.

  • src_stride – Pointer to the stride of the source tensor.

Remarks

  • The data type of the source tensor is int16 or uint16, the data type of the destination tensor is int8 or uint8.

  • The tensor is in the 4N-mode if its data type is int8 or uint8, 2N-mode if int16 or uint16.

  • The destination and source tensors start at the first NPU.

  • dst_addr and src_addr are divisible by 4 and preferred by 128.

  • shape->n, shape->h and shape->w are in [1, 65535], shape->c is in [1, 4095].

  • If dst_stride or src_stride is NULL, the relative tensor is in the 128-Byte Aligned Layout.

okk_bdc_fixed_point_packed_16bit_split_low_8bit

void okk_bdc_fixed_point_packed_16bit_split_low_8bit(local_addr_t dst_addr, local_addr_t src_addr, local_addr_t work_addr, const dim4 *shape, const dim4 *dst_stride, const dim4 *src_stride, const dim4 *work_stride)

Split the least significant 8 bits from the elements of the source tensor of 16-bit data type.

Parameters

  • dst_addr – Address of the destination tensor.

  • src_addr – Address of the source tensor.

  • work_addr – Address of the work tensor.

  • shape – Pointer to the shape of the destination, source and work tensors.

  • dst_stride – Pointer to the stride of the destination tensor.

  • src_stride – Pointer to the stride of the source tensor.

  • src_stride – Pointer to the stride of the work tensor.

Remarks

  • The data type of the source and work tensors is int16 or uint16, the data type of the destination tensor is int8 or uint8.

  • The tensor is in the 4N-mode if its data type is int8 or uint8, 2N-mode if int16 or uint16.

  • The destination and source tensors start at the first NPU.

  • dst_addr, src_addr and work_addr are divisible by 4 and preferred by 128.

  • shape->n, shape->h and shape->w are in [1, 65535], shape->c is in [1, 4095].

  • If dst_stride, src_stride or work_stride is NULL, the relative tensor is in the 128-Byte Aligned Layout.

  • The work tensor is a workspace to store temporary tensor with the same size as the source tensor, dst_addr = work_addr is not allowed.