1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-vadd/scalar.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2021 Google LLC
6 //
7 // This source code is licensed under the BSD-style license found in the
8 // LICENSE file in the root directory of this source tree.
9
10 #include <assert.h>
11
12 #include <xnnpack/math.h>
13 #include <xnnpack/vadd.h>
14
15
xnn_qs8_vadd_minmax_ukernel__scalar_x1(size_t n,const int8_t * input_a,const int8_t * input_b,int8_t * output,const union xnn_qs8_add_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])16 void xnn_qs8_vadd_minmax_ukernel__scalar_x1(
17 size_t n,
18 const int8_t* input_a,
19 const int8_t* input_b,
20 int8_t* output,
21 const union xnn_qs8_add_minmax_params params[restrict XNN_MIN_ELEMENTS(1)])
22 {
23 const int32_t vbias = params->scalar.bias;
24 const int32_t va_multiplier = params->scalar.a_multiplier;
25 const int32_t vb_multiplier = params->scalar.b_multiplier;
26 const uint32_t vshift = params->scalar.shift;
27 const int32_t voutput_min_less_zero_point = params->scalar.output_min_less_zero_point;
28 const int32_t voutput_max_less_zero_point = params->scalar.output_max_less_zero_point;
29 const int32_t voutput_zero_point = params->scalar.output_zero_point;
30
31 do {
32 const int32_t va = *input_a++;
33 const int32_t vb = *input_b++;
34 const int32_t vacc = vbias + va * va_multiplier + vb * vb_multiplier;
35
36 int32_t vout = math_asr_s32(vacc, vshift);
37 vout = math_max_s32(vout, voutput_min_less_zero_point);
38 vout = math_min_s32(vout, voutput_max_less_zero_point);
39 *output++ = (int8_t) (vout + voutput_zero_point);
40
41 n -= sizeof(int8_t);
42 } while (n != 0);
43 }
44