| // Auto-generated file. Do not edit! |
| // Template: src/qs8-vmul/scalar.c.in |
| // Generator: tools/xngen |
| // |
| // Copyright 2021 Google LLC |
| // |
| // This source code is licensed under the BSD-style license found in the |
| // LICENSE file in the root directory of this source tree. |
| |
| #include <assert.h> |
| |
| #include <fp16.h> |
| |
| #include <xnnpack/math.h> |
| #include <xnnpack/vmul.h> |
| |
| |
| void xnn_qu8_vmul_minmax_fp32_ukernel__scalar_x1( |
| size_t n, |
| const uint8_t* input_a, |
| const uint8_t* input_b, |
| uint8_t* output, |
| const union xnn_qu8_mul_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) |
| { |
| const int32_t va_zero_point = params->fp32_scalar.a_zero_point; |
| const int32_t vb_zero_point = params->fp32_scalar.b_zero_point; |
| const float vscale = params->fp32_scalar.scale; |
| const float voutput_min_less_zero_point = params->fp32_scalar.output_min_less_zero_point; |
| const float voutput_max_less_zero_point = params->fp32_scalar.output_max_less_zero_point; |
| const float vmagic_bias = params->fp32_scalar.magic_bias; |
| const int32_t vmagic_bias_less_output_zero_point = params->fp32_scalar.magic_bias_less_output_zero_point; |
| |
| do { |
| const int32_t va = (int32_t) *input_a++ - va_zero_point; |
| const int32_t vb = (int32_t) *input_b++ - vb_zero_point; |
| const int32_t vacc = va * vb; |
| |
| float vfpacc = (float) vacc * vscale; |
| vfpacc = math_max_f32(vfpacc, voutput_min_less_zero_point); |
| vfpacc = math_min_f32(vfpacc, voutput_max_less_zero_point); |
| vfpacc += vmagic_bias; |
| const int32_t vout = (int32_t) fp32_to_bits(vfpacc) - vmagic_bias_less_output_zero_point; |
| *output++ = (uint8_t) vout; |
| |
| n -= sizeof(uint8_t); |
| } while (n != 0); |
| } |