portapack-mayhem/firmware/common/simd.hpp

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/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __SIMD_H__
#define __SIMD_H__
#if defined(LPC43XX_M4)
#include <hal.h>
#include <cstdint>
struct vec4_s8 {
union {
int8_t v[4];
uint32_t w;
};
};
struct vec2_s16 {
constexpr vec2_s16()
: v{0, 0} {
}
constexpr vec2_s16(
const int16_t v)
: v{v, v} {
}
constexpr vec2_s16(
const int16_t v0,
const int16_t v1)
: v{v0, v1} {
}
constexpr vec2_s16(
const vec2_s16& other)
: w{other.w} {
}
vec2_s16& operator=(const vec2_s16& other) {
w = other.w;
return *this;
}
union {
int16_t v[2];
uint32_t w;
};
};
static inline vec4_s8 rev16(const vec4_s8 v) {
vec4_s8 result;
result.w = __REV16(v.w);
return result;
}
static inline vec4_s8 pkhbt(const vec4_s8 v1, const vec4_s8 v2, const size_t sh = 0) {
vec4_s8 result;
result.w = __PKHBT(v1.w, v2.w, sh);
return result;
}
static inline vec2_s16 pkhbt(const vec2_s16 v1, const vec2_s16 v2, const size_t sh = 0) {
vec2_s16 result;
result.w = __PKHBT(v1.w, v2.w, sh);
return result;
}
static inline vec2_s16 pkhtb(const vec2_s16 v1, const vec2_s16 v2, const size_t sh = 0) {
vec2_s16 result;
result.w = __PKHTB(v1.w, v2.w, sh);
return result;
}
static inline vec2_s16 sxtb16(const vec4_s8 v, const size_t sh = 0) {
vec2_s16 result;
result.w = __SXTB16(v.w, sh);
return result;
}
static inline int32_t smlsd(const vec2_s16 v1, const vec2_s16 v2, const int32_t accum) {
return __SMLSD(v1.w, v2.w, accum);
}
static inline int32_t smlad(const vec2_s16 v1, const vec2_s16 v2, const int32_t accum) {
return __SMLAD(v1.w, v2.w, accum);
}
#endif /* defined(LPC43XX_M4) */
#endif /*__SIMD_H__*/