diff options
Diffstat (limited to 'libcpu/c-sky/common/csi_simd.h')
| -rw-r--r-- | libcpu/c-sky/common/csi_simd.h | 1483 |
1 files changed, 1483 insertions, 0 deletions
diff --git a/libcpu/c-sky/common/csi_simd.h b/libcpu/c-sky/common/csi_simd.h new file mode 100644 index 0000000000..c6ddfcbdc5 --- /dev/null +++ b/libcpu/c-sky/common/csi_simd.h @@ -0,0 +1,1483 @@ +/* + * Copyright (C) 2017 C-SKY Microsystems Co., Ltd. All rights reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/****************************************************************************** + * @file csi_simd.h + * @brief CSI Single Instruction Multiple Data (SIMD) Header File for GCC. + * @version V1.0 + * @date 02. June 2017 + ******************************************************************************/ + +#ifndef _CSI_SIMD_H_ +#define _CSI_SIMD_H_ + +/** + \brief Halfword packing instruction. Combines bits[15:0] of val1 with bits[31:16] + of val2 levitated with the val3. + \details Combine a halfword from one register with a halfword from another register. + The second argument can be left-shifted before extraction of the halfword. + \param [in] val1 first 16-bit operands + \param [in] val2 second 16-bit operands + \param [in] val3 value for left-shifting val2. Value range [0..31]. + \return the combination of halfwords. + \remark + res[15:0] = val1[15:0] \n + res[31:16] = val2[31:16] << val3 + */ +__ALWAYS_INLINE uint32_t __PKHBT(uint32_t val1, uint32_t val2, uint32_t val3) +{ + return ((((int32_t)(val1) << 0) & (int32_t)0x0000FFFF) | (((int32_t)(val2) << val3) & (int32_t)0xFFFF0000)); +} + +/** + \brief Halfword packing instruction. Combines bits[31:16] of val1 with bits[15:0] + of val2 right-shifted with the val3. + \details Combine a halfword from one register with a halfword from another register. + The second argument can be right-shifted before extraction of the halfword. + \param [in] val1 first 16-bit operands + \param [in] val2 second 16-bit operands + \param [in] val3 value for right-shifting val2. Value range [1..32]. + \return the combination of halfwords. + \remark + res[15:0] = val2[15:0] >> val3 \n + res[31:16] = val1[31:16] + */ +__ALWAYS_INLINE uint32_t __PKHTB(uint32_t val1, uint32_t val2, uint32_t val3) +{ + return ((((int32_t)(val1) << 0) & (int32_t)0xFFFF0000) | (((int32_t)(val2) >> val3) & (int32_t)0x0000FFFF)); +} + +/** + \brief Dual 16-bit signed saturate. + \details This function saturates a signed value. + \param [in] x two signed 16-bit values to be saturated. + \param [in] y bit position for saturation, an integral constant expression in the range 1 to 16. + \return the sum of the absolute differences of the following bytes, added to the accumulation value:\n + the signed saturation of the low halfword in val1, saturated to the bit position specified in + val2 and returned in the low halfword of the return value.\n + the signed saturation of the high halfword in val1, saturated to the bit position specified in + val2 and returned in the high halfword of the return value. + */ +__ALWAYS_INLINE uint32_t __SSAT16(int32_t x, const uint32_t y) +{ + int32_t r = 0, s = 0; + + r = __SSAT((((int32_t)x << 16) >> 16), y) & (int32_t)0x0000FFFF; + s = __SSAT((((int32_t)x) >> 16), y) & (int32_t)0x0000FFFF; + + return ((uint32_t)((s << 16) | (r))); +} + +/** + \brief Dual 16-bit unsigned saturate. + \details This function enables you to saturate two signed 16-bit values to a selected unsigned range. + \param [in] x two signed 16-bit values to be saturated. + \param [in] y bit position for saturation, an integral constant expression in the range 1 to 16. + \return the saturation of the two signed 16-bit values, as non-negative values: + the saturation of the low halfword in val1, saturated to the bit position specified in + val2 and returned in the low halfword of the return value.\n + the saturation of the high halfword in val1, saturated to the bit position specified in + val2 and returned in the high halfword of the return value. + */ +__ALWAYS_INLINE uint32_t __USAT16(uint32_t x, const uint32_t y) +{ + int32_t r = 0, s = 0; + + r = __IUSAT(((x << 16) >> 16), y) & 0x0000FFFF; + s = __IUSAT(((x) >> 16), y) & 0x0000FFFF; + + return ((s << 16) | (r)); +} + +/** + \brief Quad 8-bit saturating addition. + \details This function enables you to perform four 8-bit integer additions, + saturating the results to the 8-bit signed integer range -2^7 <= x <= 2^7 - 1. + \param [in] x first four 8-bit summands. + \param [in] y second four 8-bit summands. + \return the saturated addition of the first byte of each operand in the first byte of the return value.\n + the saturated addition of the second byte of each operand in the second byte of the return value.\n + the saturated addition of the third byte of each operand in the third byte of the return value.\n + the saturated addition of the fourth byte of each operand in the fourth byte of the return value.\n + The returned results are saturated to the 8-bit signed integer range -2^7 <= x <= 2^7 - 1. + \remark + res[7:0] = val1[7:0] + val2[7:0] \n + res[15:8] = val1[15:8] + val2[15:8] \n + res[23:16] = val1[23:16] + val2[23:16] \n + res[31:24] = val1[31:24] + val2[31:24] + */ +__ALWAYS_INLINE uint32_t __QADD8(uint32_t x, uint32_t y) +{ + int32_t r, s, t, u; + + r = __SSAT(((((int32_t)x << 24) >> 24) + (((int32_t)y << 24) >> 24)), 8) & (int32_t)0x000000FF; + s = __SSAT(((((int32_t)x << 16) >> 24) + (((int32_t)y << 16) >> 24)), 8) & (int32_t)0x000000FF; + t = __SSAT(((((int32_t)x << 8) >> 24) + (((int32_t)y << 8) >> 24)), 8) & (int32_t)0x000000FF; + u = __SSAT(((((int32_t)x) >> 24) + (((int32_t)y) >> 24)), 8) & (int32_t)0x000000FF; + + return ((uint32_t)((u << 24) | (t << 16) | (s << 8) | (r))); +} + +/** + \brief Quad 8-bit unsigned saturating addition. + \details This function enables you to perform four unsigned 8-bit integer additions, + saturating the results to the 8-bit unsigned integer range 0 < x < 2^8 - 1. + \param [in] x first four 8-bit summands. + \param [in] y second four 8-bit summands. + \return the saturated addition of the first byte of each operand in the first byte of the return value.\n + the saturated addition of the second byte of each operand in the second byte of the return value.\n + the saturated addition of the third byte of each operand in the third byte of the return value.\n + the saturated addition of the fourth byte of each operand in the fourth byte of the return value.\n + The returned results are saturated to the 8-bit signed integer range 0 <= x <= 2^8 - 1. + \remark + res[7:0] = val1[7:0] + val2[7:0] \n + res[15:8] = val1[15:8] + val2[15:8] \n + res[23:16] = val1[23:16] + val2[23:16] \n + res[31:24] = val1[31:24] + val2[31:24] + */ +__ALWAYS_INLINE uint32_t __UQADD8(uint32_t x, uint32_t y) +{ + int32_t r, s, t, u; + + r = __IUSAT((((x << 24) >> 24) + ((y << 24) >> 24)), 8) & 0x000000FF; + s = __IUSAT((((x << 16) >> 24) + ((y << 16) >> 24)), 8) & 0x000000FF; + t = __IUSAT((((x << 8) >> 24) + ((y << 8) >> 24)), 8) & 0x000000FF; + u = __IUSAT((((x) >> 24) + ((y) >> 24)), 8) & 0x000000FF; + + return ((u << 24) | (t << 16) | (s << 8) | (r)); +} + +/** + \brief Quad 8-bit signed addition. + \details This function performs four 8-bit signed integer additions. + \param [in] x first four 8-bit summands. + \param [in] y second four 8-bit summands. + \return the addition of the first bytes from each operand, in the first byte of the return value.\n + the addition of the second bytes of each operand, in the second byte of the return value.\n + the addition of the third bytes of each operand, in the third byte of the return value.\n + the addition of the fourth bytes of each operand, in the fourth byte of the return value. + \remark + res[7:0] = val1[7:0] + val2[7:0] \n + res[15:8] = val1[15:8] + val2[15:8] \n + res[23:16] = val1[23:16] + val2[23:16] \n + res[31:24] = val1[31:24] + val2[31:24] + */ +__ALWAYS_INLINE uint32_t __SADD8(uint32_t x, uint32_t y) +{ + int32_t r, s, t, u; + + r = ((((int32_t)x << 24) >> 24) + (((int32_t)y << 24) >> 24)) & (int32_t)0x000000FF; + s = ((((int32_t)x << 16) >> 24) + (((int32_t)y << 16) >> 24)) & (int32_t)0x000000FF; + t = ((((int32_t)x << 8) >> 24) + (((int32_t)y << 8) >> 24)) & (int32_t)0x000000FF; + u = ((((int32_t)x) >> 24) + (((int32_t)y) >> 24)) & (int32_t)0x000000FF; + + return ((uint32_t)((u << 24) | (t << 16) | (s << 8) | (r))); +} + +/** + \brief Quad 8-bit unsigned addition. + \details This function performs four unsigned 8-bit integer additions. + \param [in] x first four 8-bit summands. + \param [in] y second four 8-bit summands. + \return the addition of the first bytes from each operand, in the first byte of the return value.\n + the addition of the second bytes of each operand, in the second byte of the return value.\n + the addition of the third bytes of each operand, in the third byte of the return value.\n + the addition of the fourth bytes of each operand, in the fourth byte of the return value. + \remark + res[7:0] = val1[7:0] + val2[7:0] \n + res[15:8] = val1[15:8] + val2[15:8] \n + res[23:16] = val1[23:16] + val2[23:16] \n + res[31:24] = val1[31:24] + val2[31:24] + */ +__ALWAYS_INLINE uint32_t __UADD8(uint32_t x, uint32_t y) +{ + int32_t r, s, t, u; + + r = (((x << 24) >> 24) + ((y << 24) >> 24)) & 0x000000FF; + s = (((x << 16) >> 24) + ((y << 16) >> 24)) & 0x000000FF; + t = (((x << 8) >> 24) + ((y << 8) >> 24)) & 0x000000FF; + u = (((x) >> 24) + ((y) >> 24)) & 0x000000FF; + + return ((u << 24) | (t << 16) | (s << 8) | (r)); +} + +/** + \brief Quad 8-bit saturating subtract. + \details This function enables you to perform four 8-bit integer subtractions, + saturating the results to the 8-bit signed integer range -2^7 <= x <= 2^7 - 1. + \param [in] x first four 8-bit summands. + \param [in] y second four 8-bit summands. + \return the subtraction of the first byte of each operand in the first byte of the return value.\n + the subtraction of the second byte of each operand in the second byte of the return value.\n + the subtraction of the third byte of each operand in the third byte of the return value.\n + the subtraction of the fourth byte of each operand in the fourth byte of the return value.\n + The returned results are saturated to the 8-bit signed integer range -2^7 <= x <= 2^7 - 1. + \remark + res[7:0] = val1[7:0] - val2[7:0] \n + res[15:8] = val1[15:8] - val2[15:8] \n + res[23:16] = val1[23:16] - val2[23:16] \n + res[31:24] = val1[31:24] - val2[31:24] + */ +__ALWAYS_INLINE uint32_t __QSUB8(uint32_t x, uint32_t y) +{ + int32_t r, s, t, u; + + r = __SSAT(((((int32_t)x << 24) >> 24) - (((int32_t)y << 24) >> 24)), 8) & (int32_t)0x000000FF; + s = __SSAT(((((int32_t)x << 16) >> 24) - (((int32_t)y << 16) >> 24)), 8) & (int32_t)0x000000FF; + t = __SSAT(((((int32_t)x << 8) >> 24) - (((int32_t)y << 8) >> 24)), 8) & (int32_t)0x000000FF; + u = __SSAT(((((int32_t)x) >> 24) - (((int32_t)y) >> 24)), 8) & (int32_t)0x000000FF; + + return ((uint32_t)((u << 24) | (t << 16) | (s << 8) | (r))); +} + +/** + \brief Quad 8-bit unsigned saturating subtraction. + \details This function enables you to perform four unsigned 8-bit integer subtractions, + saturating the results to the 8-bit unsigned integer range 0 < x < 2^8 - 1. + \param [in] x first four 8-bit summands. + \param [in] y second four 8-bit summands. + \return the subtraction of the first byte of each operand in the first byte of the return value.\n + the subtraction of the second byte of each operand in the second byte of the return value.\n + the subtraction of the third byte of each operand in the third byte of the return value.\n + the subtraction of the fourth byte of each operand in the fourth byte of the return value.\n + The returned results are saturated to the 8-bit unsigned integer range 0 <= x <= 2^8 - 1. + \remark + res[7:0] = val1[7:0] - val2[7:0] \n + res[15:8] = val1[15:8] - val2[15:8] \n + res[23:16] = val1[23:16] - val2[23:16] \n + res[31:24] = val1[31:24] - val2[31:24] + */ +__ALWAYS_INLINE uint32_t __UQSUB8(uint32_t x, uint32_t y) +{ + int32_t r, s, t, u; + + r = __IUSAT((((x << 24) >> 24) - ((y << 24) >> 24)), 8) & 0x000000FF; + s = __IUSAT((((x << 16) >> 24) - ((y << 16) >> 24)), 8) & 0x000000FF; + t = __IUSAT((((x << 8) >> 24) - ((y << 8) >> 24)), 8) & 0x000000FF; + u = __IUSAT((((x) >> 24) - ((y) >> 24)), 8) & 0x000000FF; + + return ((u << 24) | (t << 16) | (s << 8) | (r)); +} + +/** + \brief Quad 8-bit signed subtraction. + \details This function enables you to perform four 8-bit signed integer subtractions. + \param [in] x first four 8-bit operands of each subtraction. + \param [in] y second four 8-bit operands of each subtraction. + \return the subtraction of the first bytes from each operand, in the first byte of the return value.\n + the subtraction of the second bytes of each operand, in the second byte of the return value.\n + the subtraction of the third bytes of each operand, in the third byte of the return value.\n + the subtraction of the fourth bytes of each operand, in the fourth byte of the return value. + \remark + res[7:0] = val1[7:0] - val2[7:0] \n + res[15:8] = val1[15:8] - val2[15:8] \n + res[23:16] = val1[23:16] - val2[23:16] \n + res[31:24] = val1[31:24] - val2[31:24] + */ +__ALWAYS_INLINE uint32_t __SSUB8(uint32_t x, uint32_t y) +{ + int32_t r, s, t, u; + + r = ((((int32_t)x << 24) >> 24) - (((int32_t)y << 24) >> 24)) & (int32_t)0x000000FF; + s = ((((int32_t)x << 16) >> 24) - (((int32_t)y << 16) >> 24)) & (int32_t)0x000000FF; + t = ((((int32_t)x << 8) >> 24) - (((int32_t)y << 8) >> 24)) & (int32_t)0x000000FF; + u = ((((int32_t)x) >> 24) - (((int32_t)y) >> 24)) & (int32_t)0x000000FF; + + return ((uint32_t)((u << 24) | (t << 16) | (s << 8) | (r))); +} + +/** + \brief Quad 8-bit unsigned subtract. + \details This function enables you to perform four 8-bit unsigned integer subtractions. + \param [in] x first four 8-bit operands of each subtraction. + \param [in] y second four 8-bit operands of each subtraction. + \return the subtraction of the first bytes from each operand, in the first byte of the return value.\n + the subtraction of the second bytes of each operand, in the second byte of the return value.\n + the subtraction of the third bytes of each operand, in the third byte of the return value.\n + the subtraction of the fourth bytes of each operand, in the fourth byte of the return value. + \remark + res[7:0] = val1[7:0] - val2[7:0] \n + res[15:8] = val1[15:8] - val2[15:8] \n + res[23:16] = val1[23:16] - val2[23:16] \n + res[31:24] = val1[31:24] - val2[31:24] + */ +__ALWAYS_INLINE uint32_t __USUB8(uint32_t x, uint32_t y) +{ + int32_t r, s, t, u; + + r = (((x << 24) >> 24) - ((y << 24) >> 24)) & 0x000000FF; + s = (((x << 16) >> 24) - ((y << 16) >> 24)) & 0x000000FF; + t = (((x << 8) >> 24) - ((y << 8) >> 24)) & 0x000000FF; + u = (((x) >> 24) - ((y) >> 24)) & 0x000000FF; + + return ((u << 24) | (t << 16) | (s << 8) | (r)); +} + +/** + \brief Unsigned sum of quad 8-bit unsigned absolute difference. + \details This function enables you to perform four unsigned 8-bit subtractions, and add the absolute values + of the differences together, returning the result as a single unsigned integer. + \param [in] x first four 8-bit operands of each subtraction. + \param [in] y second four 8-bit operands of each subtraction. + \return the subtraction of the first bytes from each operand, in the first byte of the return value.\n + the subtraction of the second bytes of each operand, in the second byte of the return value.\n + the subtraction of the third bytes of each operand, in the third byte of the return value.\n + the subtraction of the fourth bytes of each operand, in the fourth byte of the return value.\n + The sum is returned as a single unsigned integer. + \remark + absdiff1 = val1[7:0] - val2[7:0] \n + absdiff2 = val1[15:8] - val2[15:8] \n + absdiff3 = val1[23:16] - val2[23:16] \n + absdiff4 = val1[31:24] - val2[31:24] \n + res[31:0] = absdiff1 + absdiff2 + absdiff3 + absdiff4 + */ +__ALWAYS_INLINE uint32_t __USAD8(uint32_t x, uint32_t y) +{ + int32_t r, s, t, u; + + r = (((x << 24) >> 24) - ((y << 24) >> 24)) & 0x000000FF; + s = (((x << 16) >> 24) - ((y << 16) >> 24)) & 0x000000FF; + t = (((x << 8) >> 24) - ((y << 8) >> 24)) & 0x000000FF; + u = (((x) >> 24) - ((y) >> 24)) & 0x000000FF; + + return (u + t + s + r); +} + +/** + \brief Unsigned sum of quad 8-bit unsigned absolute difference with 32-bit accumulate. + \details This function enables you to perform four unsigned 8-bit subtractions, and add the absolute values + of the differences to a 32-bit accumulate operand. + \param [in] x first four 8-bit operands of each subtraction. + \param [in] y second four 8-bit operands of each subtraction. + \param [in] sum accumulation value. + \return the sum of the absolute differences of the following bytes, added to the accumulation value: + the subtraction of the first bytes from each operand, in the first byte of the return value.\n + the subtraction of the second bytes of each operand, in the second byte of the return value.\n + the subtraction of the third bytes of each operand, in the third byte of the return value.\n + the subtraction of the fourth bytes of each operand, in the fourth byte of the return value. + \remark + absdiff1 = val1[7:0] - val2[7:0] \n + absdiff2 = val1[15:8] - val2[15:8] \n + absdiff3 = val1[23:16] - val2[23:16] \n + absdiff4 = val1[31:24] - val2[31:24] \n + sum = absdiff1 + absdiff2 + absdiff3 + absdiff4 \n + res[31:0] = sum[31:0] + val3[31:0] + */ +__ALWAYS_INLINE uint32_t __USADA8(uint32_t x, uint32_t y, uint32_t sum) +{ + int32_t r, s, t, u; + + r = (abs(((x << 24) >> 24) - ((y << 24) >> 24))) & 0x000000FF; + s = (abs(((x << 16) >> 24) - ((y << 16) >> 24))) & 0x000000FF; + t = (abs(((x << 8) >> 24) - ((y << 8) >> 24))) & 0x000000FF; + u = (abs(((x) >> 24) - ((y) >> 24))) & 0x000000FF; + + return (u + t + s + r + sum); +} + +/** + \brief Dual 16-bit saturating addition. + \details This function enables you to perform two 16-bit integer arithmetic additions in parallel, + saturating the results to the 16-bit signed integer range -2^15 <= x <= 2^15 - 1. + \param [in] x first two 16-bit summands. + \param [in] y second two 16-bit summands. + \return the saturated addition of the low halfwords, in the low halfword of the return value.\n + the saturated addition of the high halfwords, in the high halfword of the return value.\n + The returned results are saturated to the 16-bit signed integer range -2^15 <= x <= 2^15 - 1. + \remark + res[15:0] = val1[15:0] + val2[15:0] \n + res[31:16] = val1[31:16] + val2[31:16] + */ +__ALWAYS_INLINE uint32_t __QADD16(uint32_t x, uint32_t y) +{ + int32_t r = 0, s = 0; + + r = __SSAT(((((int32_t)x << 16) >> 16) + (((int32_t)y << 16) >> 16)), 16) & (int32_t)0x0000FFFF; + s = __SSAT(((((int32_t)x) >> 16) + (((int32_t)y) >> 16)), 16) & (int32_t)0x0000FFFF; + + return ((uint32_t)((s << 16) | (r))); +} + +/** + \brief Dual 16-bit unsigned saturating addition. + \details This function enables you to perform two unsigned 16-bit integer additions, saturating + the results to the 16-bit unsigned integer range 0 < x < 2^16 - 1. + \param [in] x first two 16-bit summands. + \param [in] y second two 16-bit summands. + \return the saturated addition of the low halfwords, in the low halfword of the return value.\n + the saturated addition of the high halfwords, in the high halfword of the return value.\n + The results are saturated to the 16-bit unsigned integer range 0 < x < 2^16 - 1. + \remark + res[15:0] = val1[15:0] + val2[15:0] \n + res[31:16] = val1[31:16] + val2[31:16] + */ +__ALWAYS_INLINE uint32_t __UQADD16(uint32_t x, uint32_t y) +{ + int32_t r = 0, s = 0; + + r = __IUSAT((((x << 16) >> 16) + ((y << 16) >> 16)), 16) & 0x0000FFFF; + s = __IUSAT((((x) >> 16) + ((y) >> 16)), 16) & 0x0000FFFF; + + return ((s << 16) | (r)); +} + +/** + \brief Dual 16-bit signed addition. + \details This function enables you to perform two 16-bit signed integer additions. + \param [in] x first two 16-bit summands. + \param [in] y second two 16-bit summands. + \return the addition of the low halfwords in the low halfword of the return value.\n + the addition of the high halfwords in the high halfword of the return value. + \remark + res[15:0] = val1[15:0] + val2[15:0] \n + res[31:16] = val1[31:16] + val2[31:16] + */ +__ALWAYS_INLINE uint32_t __SADD16(uint32_t x, uint32_t y) +{ + int32_t r = 0, s = 0; + + r = ((((int32_t)x << 16) >> 16) + (((int32_t)y << 16) >> 16)) & (int32_t)0x0000FFFF; + s = ((((int32_t)x) >> 16) + (((int32_t)y) >> 16)) & (int32_t)0x0000FFFF; + + return ((uint32_t)((s << 16) | (r))); +} + +/** + \brief Dual 16-bit unsigned addition + \details This function enables you to perform two 16-bit unsigned integer additions. + \param [in] x first two 16-bit summands for each addition. + \param [in] y second two 16-bit summands for each addition. + \return the addition of the low halfwords in the low halfword of the return value.\n + the addition of the high halfwords in the high halfword of the return value. + \remark + res[15:0] = val1[15:0] + val2[15:0] \n + res[31:16] = val1[31:16] + val2[31:16] + */ +__ALWAYS_INLINE uint32_t __UADD16(uint32_t x, uint32_t y) +{ + int32_t r = 0, s = 0; + + r = (((x << 16) >> 16) + ((y << 16) >> 16)) & 0x0000FFFF; + s = (((x) >> 16) + ((y) >> 16)) & 0x0000FFFF; + + return ((s << 16) | (r)); +} + + +/** + \brief Dual 16-bit signed addition with halved results. + \details This function enables you to perform two signed 16-bit integer additions, halving the results. + \param [in] x first two 16-bit summands. + \param [in] y second two 16-bit summands. + \return the halved addition of the low halfwords, in the low halfword of the return value.\n + the halved addition of the high halfwords, in the high halfword of the return value. + \remark + res[15:0] = (val1[15:0] + val2[15:0]) >> 1 \n + res[31:16] = (val1[31:16] + val2[31:16]) >> 1 + */ +__ALWAYS_INLINE uint32_t __SHADD16(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = (((((int32_t)x << 16) >> 16) + (((int32_t)y << 16) >> 16)) >> 1) & (int32_t)0x0000FFFF; + s = (((((int32_t)x) >> 16) + (((int32_t)y) >> 16)) >> 1) & (int32_t)0x0000FFFF; + + return ((uint32_t)((s << 16) | (r))); +} + +/** + \brief Dual 16-bit unsigned addition with halved results. + \details This function enables you to perform two unsigned 16-bit integer additions, halving the results. + \param [in] x first two 16-bit summands. + \param [in] y second two 16-bit summands. + \return the halved addition of the low halfwords, in the low halfword of the return value.\n + the halved addition of the high halfwords, in the high halfword of the return value. + \remark + res[15:0] = (val1[15:0] + val2[15:0]) >> 1 \n + res[31:16] = (val1[31:16] + val2[31:16]) >> 1 + */ +__ALWAYS_INLINE uint32_t __UHADD16(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = ((((x << 16) >> 16) + ((y << 16) >> 16)) >> 1) & 0x0000FFFF; + s = ((((x) >> 16) + ((y) >> 16)) >> 1) & 0x0000FFFF; + + return ((s << 16) | (r)); +} + +/** + \brief Quad 8-bit signed addition with halved results. + \details This function enables you to perform four signed 8-bit integer additions, halving the results. + \param [in] x first four 8-bit summands. + \param [in] y second four 8-bit summands. + \return the halved addition of the first bytes from each operand, in the first byte of the return value.\n + the halved addition of the second bytes from each operand, in the second byte of the return value.\n + the halved addition of the third bytes from each operand, in the third byte of the return value.\n + the halved addition of the fourth bytes from each operand, in the fourth byte of the return value. + \remark + res[7:0] = (val1[7:0] + val2[7:0] ) >> 1 \n + res[15:8] = (val1[15:8] + val2[15:8] ) >> 1 \n + res[23:16] = (val1[23:16] + val2[23:16]) >> 1 \n + res[31:24] = (val1[31:24] + val2[31:24]) >> 1 + */ +__ALWAYS_INLINE uint32_t __SHADD8(uint32_t x, uint32_t y) +{ + int32_t r, s, t, u; + + r = (((((int32_t)x << 24) >> 24) + (((int32_t)y << 24) >> 24)) >> 1) & (int32_t)0x000000FF; + s = (((((int32_t)x << 16) >> 24) + (((int32_t)y << 16) >> 24)) >> 1) & (int32_t)0x000000FF; + t = (((((int32_t)x << 8) >> 24) + (((int32_t)y << 8) >> 24)) >> 1) & (int32_t)0x000000FF; + u = (((((int32_t)x) >> 24) + (((int32_t)y) >> 24)) >> 1) & (int32_t)0x000000FF; + + return ((uint32_t)((u << 24) | (t << 16) | (s << 8) | (r))); +} + +/** + \brief Quad 8-bit unsigned addition with halved results. + \details This function enables you to perform four unsigned 8-bit integer additions, halving the results. + \param [in] x first four 8-bit summands. + \param [in] y second four 8-bit summands. + \return the halved addition of the first bytes from each operand, in the first byte of the return value.\n + the halved addition of the second bytes from each operand, in the second byte of the return value.\n + the halved addition of the third bytes from each operand, in the third byte of the return value.\n + the halved addition of the fourth bytes from each operand, in the fourth byte of the return value. + \remark + res[7:0] = (val1[7:0] + val2[7:0] ) >> 1 \n + res[15:8] = (val1[15:8] + val2[15:8] ) >> 1 \n + res[23:16] = (val1[23:16] + val2[23:16]) >> 1 \n + res[31:24] = (val1[31:24] + val2[31:24]) >> 1 + */ +__ALWAYS_INLINE uint32_t __UHADD8(uint32_t x, uint32_t y) +{ + int32_t r, s, t, u; + + r = ((((x << 24) >> 24) + ((y << 24) >> 24)) >> 1) & 0x000000FF; + s = ((((x << 16) >> 24) + ((y << 16) >> 24)) >> 1) & 0x000000FF; + t = ((((x << 8) >> 24) + ((y << 8) >> 24)) >> 1) & 0x000000FF; + u = ((((x) >> 24) + ((y) >> 24)) >> 1) & 0x000000FF; + + return ((u << 24) | (t << 16) | (s << 8) | (r)); +} + +/** + \brief Dual 16-bit saturating subtract. + \details This function enables you to perform two 16-bit integer subtractions in parallel, + saturating the results to the 16-bit signed integer range -2^15 <= x <= 2^15 - 1. + \param [in] x first two 16-bit summands. + \param [in] y second two 16-bit summands. + \return the saturated subtraction of the low halfwords, in the low halfword of the return value.\n + the saturated subtraction of the high halfwords, in the high halfword of the return value.\n + The returned results are saturated to the 16-bit signed integer range -2^15 <= x <= 2^15 - 1. + \remark + res[15:0] = val1[15:0] - val2[15:0] \n + res[31:16] = val1[31:16] - val2[31:16] + */ +__ALWAYS_INLINE uint32_t __QSUB16(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = __SSAT(((((int32_t)x << 16) >> 16) - (((int32_t)y << 16) >> 16)), 16) & (int32_t)0x0000FFFF; + s = __SSAT(((((int32_t)x) >> 16) - (((int32_t)y) >> 16)), 16) & (int32_t)0x0000FFFF; + + return ((uint32_t)((s << 16) | (r))); +} + +/** + \brief Dual 16-bit unsigned saturating subtraction. + \details This function enables you to perform two unsigned 16-bit integer subtractions, + saturating the results to the 16-bit unsigned integer range 0 < x < 2^16 - 1. + \param [in] x first two 16-bit operands for each subtraction. + \param [in] y second two 16-bit operands for each subtraction. + \return the saturated subtraction of the low halfwords, in the low halfword of the return value.\n + the saturated subtraction of the high halfwords, in the high halfword of the return value.\n + The returned results are saturated to the 16-bit signed integer range -2^15 <= x <= 2^15 - 1. + \remark + res[15:0] = val1[15:0] - val2[15:0] \n + res[31:16] = val1[31:16] - val2[31:16] + */ +__ALWAYS_INLINE uint32_t __UQSUB16(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = __IUSAT((((x << 16) >> 16) - ((y << 16) >> 16)), 16) & 0x0000FFFF; + s = __IUSAT((((x) >> 16) - ((y) >> 16)), 16) & 0x0000FFFF; + + return ((s << 16) | (r)); +} + +/** + \brief Dual 16-bit signed subtraction. + \details This function enables you to perform two 16-bit signed integer subtractions. + \param [in] x first two 16-bit operands of each subtraction. + \param [in] y second two 16-bit operands of each subtraction. + \return the subtraction of the low halfword in the second operand from the low + halfword in the first operand, in the low halfword of the return value. \n + the subtraction of the high halfword in the second operand from the high + halfword in the first operand, in the high halfword of the return value. + \remark + res[15:0] = val1[15:0] - val2[15:0] \n + res[31:16] = val1[31:16] - val2[31:16] + */ +__ALWAYS_INLINE uint32_t __SSUB16(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = ((((int32_t)x << 16) >> 16) - (((int32_t)y << 16) >> 16)) & (int32_t)0x0000FFFF; + s = ((((int32_t)x) >> 16) - (((int32_t)y) >> 16)) & (int32_t)0x0000FFFF; + + return ((uint32_t)((s << 16) | (r))); +} + +/** + \brief Dual 16-bit unsigned subtract. + \details This function enables you to perform two 16-bit unsigned integer subtractions. + \param [in] x first two 16-bit operands of each subtraction. + \param [in] y second two 16-bit operands of each subtraction. + \return the subtraction of the low halfword in the second operand from the low + halfword in the first operand, in the low halfword of the return value. \n + the subtraction of the high halfword in the second operand from the high + halfword in the first operand, in the high halfword of the return value. + \remark + res[15:0] = val1[15:0] - val2[15:0] \n + res[31:16] = val1[31:16] - val2[31:16] + */ +__ALWAYS_INLINE uint32_t __USUB16(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = (((x << 16) >> 16) - ((y << 16) >> 16)) & 0x0000FFFF; + s = (((x) >> 16) - ((y) >> 16)) & 0x0000FFFF; + + return ((s << 16) | (r)); +} + +/** + \brief Dual 16-bit signed subtraction with halved results. + \details This function enables you to perform two signed 16-bit integer subtractions, halving the results. + \param [in] x first two 16-bit summands. + \param [in] y second two 16-bit summands. + \return the halved subtraction of the low halfwords, in the low halfword of the return value.\n + the halved subtraction of the high halfwords, in the high halfword of the return value. + \remark + res[15:0] = (val1[15:0] - val2[15:0]) >> 1 \n + res[31:16] = (val1[31:16] - val2[31:16]) >> 1 + */ +__ALWAYS_INLINE uint32_t __SHSUB16(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = (((((int32_t)x << 16) >> 16) - (((int32_t)y << 16) >> 16)) >> 1) & (int32_t)0x0000FFFF; + s = (((((int32_t)x) >> 16) - (((int32_t)y) >> 16)) >> 1) & (int32_t)0x0000FFFF; + + return ((uint32_t)((s << 16) | (r))); +} + +/** + \brief Dual 16-bit unsigned subtraction with halved results. + \details This function enables you to perform two unsigned 16-bit integer subtractions, halving the results. + \param [in] x first two 16-bit summands. + \param [in] y second two 16-bit summands. + \return the halved subtraction of the low halfwords, in the low halfword of the return value.\n + the halved subtraction of the high halfwords, in the high halfword of the return value. + \remark + res[15:0] = (val1[15:0] - val2[15:0]) >> 1 \n + res[31:16] = (val1[31:16] - val2[31:16]) >> 1 + */ +__ALWAYS_INLINE uint32_t __UHSUB16(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = ((((x << 16) >> 16) - ((y << 16) >> 16)) >> 1) & 0x0000FFFF; + s = ((((x) >> 16) - ((y) >> 16)) >> 1) & 0x0000FFFF; + + return ((s << 16) | (r)); +} + +/** + \brief Quad 8-bit signed addition with halved results. + \details This function enables you to perform four signed 8-bit integer subtractions, halving the results. + \param [in] x first four 8-bit summands. + \param [in] y second four 8-bit summands. + \return the halved subtraction of the first bytes from each operand, in the first byte of the return value.\n + the halved subtraction of the second bytes from each operand, in the second byte of the return value.\n + the halved subtraction of the third bytes from each operand, in the third byte of the return value.\n + the halved subtraction of the fourth bytes from each operand, in the fourth byte of the return value. + \remark + res[7:0] = (val1[7:0] - val2[7:0] ) >> 1 \n + res[15:8] = (val1[15:8] - val2[15:8] ) >> 1 \n + res[23:16] = (val1[23:16] - val2[23:16]) >> 1 \n + res[31:24] = (val1[31:24] - val2[31:24]) >> 1 + */ +__ALWAYS_INLINE uint32_t __SHSUB8(uint32_t x, uint32_t y) +{ + int32_t r, s, t, u; + + r = (((((int32_t)x << 24) >> 24) - (((int32_t)y << 24) >> 24)) >> 1) & (int32_t)0x000000FF; + s = (((((int32_t)x << 16) >> 24) - (((int32_t)y << 16) >> 24)) >> 1) & (int32_t)0x000000FF; + t = (((((int32_t)x << 8) >> 24) - (((int32_t)y << 8) >> 24)) >> 1) & (int32_t)0x000000FF; + u = (((((int32_t)x) >> 24) - (((int32_t)y) >> 24)) >> 1) & (int32_t)0x000000FF; + + return ((uint32_t)((u << 24) | (t << 16) | (s << 8) | (r))); +} + +/** + \brief Quad 8-bit unsigned subtraction with halved results. + \details This function enables you to perform four unsigned 8-bit integer subtractions, halving the results. + \param [in] x first four 8-bit summands. + \param [in] y second four 8-bit summands. + \return the halved subtraction of the first bytes from each operand, in the first byte of the return value.\n + the halved subtraction of the second bytes from each operand, in the second byte of the return value.\n + the halved subtraction of the third bytes from each operand, in the third byte of the return value.\n + the halved subtraction of the fourth bytes from each operand, in the fourth byte of the return value. + \remark + res[7:0] = (val1[7:0] - val2[7:0] ) >> 1 \n + res[15:8] = (val1[15:8] - val2[15:8] ) >> 1 \n + res[23:16] = (val1[23:16] - val2[23:16]) >> 1 \n + res[31:24] = (val1[31:24] - val2[31:24]) >> 1 + */ +__ALWAYS_INLINE uint32_t __UHSUB8(uint32_t x, uint32_t y) +{ + int32_t r, s, t, u; + + r = ((((x << 24) >> 24) - ((y << 24) >> 24)) >> 1) & 0x000000FF; + s = ((((x << 16) >> 24) - ((y << 16) >> 24)) >> 1) & 0x000000FF; + t = ((((x << 8) >> 24) - ((y << 8) >> 24)) >> 1) & 0x000000FF; + u = ((((x) >> 24) - ((y) >> 24)) >> 1) & 0x000000FF; + + return ((u << 24) | (t << 16) | (s << 8) | (r)); +} + +/** + \brief Dual 16-bit add and subtract with exchange. + \details This function enables you to exchange the halfwords of the one operand, + then add the high halfwords and subtract the low halfwords, + saturating the results to the 16-bit signed integer range -2^15 <= x <= 2^15 - 1. + \param [in] x first operand for the subtraction in the low halfword, + and the first operand for the addition in the high halfword. + \param [in] y second operand for the subtraction in the high halfword, + and the second operand for the addition in the low halfword. + \return the saturated subtraction of the high halfword in the second operand from the + low halfword in the first operand, in the low halfword of the return value.\n + the saturated addition of the high halfword in the first operand and the + low halfword in the second operand, in the high halfword of the return value.\n + The returned results are saturated to the 16-bit signed integer range -2^15 <= x <= 2^15 - 1. + \remark + res[15:0] = val1[15:0] - val2[31:16] \n + res[31:16] = val1[31:16] + val2[15:0] + */ +__ALWAYS_INLINE uint32_t __QASX(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = __SSAT(((((int32_t)x << 16) >> 16) - (((int32_t)y) >> 16)), 16) & (int32_t)0x0000FFFF; + s = __SSAT(((((int32_t)x) >> 16) + (((int32_t)y << 16) >> 16)), 16) & (int32_t)0x0000FFFF; + + return ((uint32_t)((s << 16) | (r))); +} + +/** + \brief Dual 16-bit unsigned saturating addition and subtraction with exchange. + \details This function enables you to exchange the halfwords of the second operand and + perform one unsigned 16-bit integer addition and one unsigned 16-bit subtraction, + saturating the results to the 16-bit unsigned integer range 0 <= x <= 2^16 - 1. + \param [in] x first operand for the subtraction in the low halfword, + and the first operand for the addition in the high halfword. + \param [in] y second operand for the subtraction in the high halfword, + and the second operand for the addition in the low halfword. + \return the saturated subtraction of the high halfword in the second operand from the + low halfword in the first operand, in the low halfword of the return value.\n + the saturated addition of the high halfword in the first operand and the + low halfword in the second operand, in the high halfword of the return value.\n + The returned results are saturated to the 16-bit unsigned integer range 0 <= x <= 2^16 - 1. + \remark + res[15:0] = val1[15:0] - val2[31:16] \n + res[31:16] = val1[31:16] + val2[15:0] + */ +__ALWAYS_INLINE uint32_t __UQASX(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = __IUSAT((((x << 16) >> 16) - ((y) >> 16)), 16) & 0x0000FFFF; + s = __IUSAT((((x) >> 16) + ((y << 16) >> 16)), 16) & 0x0000FFFF; + + return ((s << 16) | (r)); +} + +/** + \brief Dual 16-bit addition and subtraction with exchange. + \details It enables you to exchange the halfwords of the second operand, add the high halfwords + and subtract the low halfwords. + \param [in] x first operand for the subtraction in the low halfword, + and the first operand for the addition in the high halfword. + \param [in] y second operand for the subtraction in the high halfword, + and the second operand for the addition in the low halfword. + \return the subtraction of the high halfword in the second operand from the + low halfword in the first operand, in the low halfword of the return value.\n + the addition of the high halfword in the first operand and the + low halfword in the second operand, in the high halfword of the return value. + \remark + res[15:0] = val1[15:0] - val2[31:16] \n + res[31:16] = val1[31:16] + val2[15:0] + */ +__ALWAYS_INLINE uint32_t __SASX(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = ((((int32_t)x << 16) >> 16) - (((int32_t)y) >> 16)) & (int32_t)0x0000FFFF; + s = ((((int32_t)x) >> 16) + (((int32_t)y << 16) >> 16)) & (int32_t)0x0000FFFF; + + return ((uint32_t)((s << 16) | (r))); +} + +/** + \brief Dual 16-bit unsigned addition and subtraction with exchange. + \details This function enables you to exchange the two halfwords of the second operand, + add the high halfwords and subtract the low halfwords. + \param [in] x first operand for the subtraction in the low halfword, + and the first operand for the addition in the high halfword. + \param [in] y second operand for the subtraction in the high halfword, + and the second operand for the addition in the low halfword. + \return the subtraction of the high halfword in the second operand from the + low halfword in the first operand, in the low halfword of the return value.\n + the addition of the high halfword in the first operand and the + low halfword in the second operand, in the high halfword of the return value. + \remark + res[15:0] = val1[15:0] - val2[31:16] \n + res[31:16] = val1[31:16] + val2[15:0] + */ +__ALWAYS_INLINE uint32_t __UASX(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = (((x << 16) >> 16) - ((y) >> 16)) & 0x0000FFFF; + s = (((x) >> 16) + ((y << 16) >> 16)) & 0x0000FFFF; + + return ((s << 16) | (r)); +} + +/** + \brief Dual 16-bit signed addition and subtraction with halved results. + \details This function enables you to exchange the two halfwords of one operand, perform one + signed 16-bit integer addition and one signed 16-bit subtraction, and halve the results. + \param [in] x first 16-bit operands. + \param [in] y second 16-bit operands. + \return the halved subtraction of the high halfword in the second operand from the + low halfword in the first operand, in the low halfword of the return value.\n + the halved addition of the low halfword in the second operand from the high + halfword in the first operand, in the high halfword of the return value. + \remark + res[15:0] = (val1[15:0] - val2[31:16]) >> 1 \n + res[31:16] = (val1[31:16] + val2[15:0]) >> 1 + */ +__ALWAYS_INLINE uint32_t __SHASX(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = (((((int32_t)x << 16) >> 16) - (((int32_t)y) >> 16)) >> 1) & (int32_t)0x0000FFFF; + s = (((((int32_t)x) >> 16) + (((int32_t)y << 16) >> 16)) >> 1) & (int32_t)0x0000FFFF; + + return ((uint32_t)((s << 16) | (r))); +} + +/** + \brief Dual 16-bit unsigned addition and subtraction with halved results and exchange. + \details This function enables you to exchange the halfwords of the second operand, + add the high halfwords and subtract the low halfwords, halving the results. + \param [in] x first operand for the subtraction in the low halfword, and + the first operand for the addition in the high halfword. + \param [in] y second operand for the subtraction in the high halfword, and + the second operand for the addition in the low halfword. + \return the halved subtraction of the high halfword in the second operand from the + low halfword in the first operand, in the low halfword of the return value.\n + the halved addition of the low halfword in the second operand from the high + halfword in the first operand, in the high halfword of the return value. + \remark + res[15:0] = (val1[15:0] - val2[31:16]) >> 1 \n + res[31:16] = (val1[31:16] + val2[15:0]) >> 1 + */ +__ALWAYS_INLINE uint32_t __UHASX(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = ((((x << 16) >> 16) - ((y) >> 16)) >> 1) & 0x0000FFFF; + s = ((((x) >> 16) + ((y << 16) >> 16)) >> 1) & 0x0000FFFF; + + return ((s << 16) | (r)); +} + +/** + \brief Dual 16-bit subtract and add with exchange. + \details This function enables you to exchange the halfwords of one operand, + then subtract the high halfwords and add the low halfwords, + saturating the results to the 16-bit signed integer range -2^15 <= x <= 2^15 - 1. + \param [in] x first operand for the addition in the low halfword, + and the first operand for the subtraction in the high halfword. + \param [in] y second operand for the addition in the high halfword, + and the second operand for the subtraction in the low halfword. + \return the saturated addition of the low halfword of the first operand and the high + halfword of the second operand, in the low halfword of the return value.\n + the saturated subtraction of the low halfword of the second operand from the + high halfword of the first operand, in the high halfword of the return value.\n + The returned results are saturated to the 16-bit signed integer range -2^15 <= x <= 2^15 - 1. + \remark + res[15:0] = val1[15:0] + val2[31:16] \n + res[31:16] = val1[31:16] - val2[15:0] + */ +__ALWAYS_INLINE uint32_t __QSAX(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = __SSAT(((((int32_t)x << 16) >> 16) + (((int32_t)y) >> 16)), 16) & (int32_t)0x0000FFFF; + s = __SSAT(((((int32_t)x) >> 16) - (((int32_t)y << 16) >> 16)), 16) & (int32_t)0x0000FFFF; + + return ((uint32_t)((s << 16) | (r))); +} + +/** + \brief Dual 16-bit unsigned saturating subtraction and addition with exchange. + \details This function enables you to exchange the halfwords of the second operand and perform + one unsigned 16-bit integer subtraction and one unsigned 16-bit addition, saturating + the results to the 16-bit unsigned integer range 0 <= x <= 2^16 - 1. + \param [in] x first operand for the addition in the low halfword, + and the first operand for the subtraction in the high halfword. + \param [in] y second operand for the addition in the high halfword, + and the second operand for the subtraction in the low halfword. + \return the saturated addition of the low halfword of the first operand and the high + halfword of the second operand, in the low halfword of the return value.\n + the saturated subtraction of the low halfword of the second operand from the + high halfword of the first operand, in the high halfword of the return value.\n + The returned results are saturated to the 16-bit unsigned integer range 0 <= x <= 2^16 - 1. + \remark + res[15:0] = val1[15:0] + val2[31:16] \n + res[31:16] = val1[31:16] - val2[15:0] + */ +__ALWAYS_INLINE uint32_t __UQSAX(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = __IUSAT((((x << 16) >> 16) + ((y) >> 16)), 16) & 0x0000FFFF; + s = __IUSAT((((x) >> 16) - ((y << 16) >> 16)), 16) & 0x0000FFFF; + + return ((s << 16) | (r)); +} + +/** + \brief Dual 16-bit unsigned subtract and add with exchange. + \details This function enables you to exchange the halfwords of the second operand, + subtract the high halfwords and add the low halfwords. + \param [in] x first operand for the addition in the low halfword, + and the first operand for the subtraction in the high halfword. + \param [in] y second operand for the addition in the high halfword, + and the second operand for the subtraction in the low halfword. + \return the addition of the low halfword of the first operand and the high + halfword of the second operand, in the low halfword of the return value.\n + the subtraction of the low halfword of the second operand from the + high halfword of the first operand, in the high halfword of the return value.\n + \remark + res[15:0] = val1[15:0] + val2[31:16] \n + res[31:16] = val1[31:16] - val2[15:0] + */ +__ALWAYS_INLINE uint32_t __USAX(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = (((x << 16) >> 16) + ((y) >> 16)) & 0x0000FFFF; + s = (((x) >> 16) - ((y << 16) >> 16)) & 0x0000FFFF; + + return ((s << 16) | (r)); +} + +/** + \brief Dual 16-bit signed subtraction and addition with exchange. + \details This function enables you to exchange the two halfwords of one operand and perform one + 16-bit integer subtraction and one 16-bit addition. + \param [in] x first operand for the addition in the low halfword, and the first operand + for the subtraction in the high halfword. + \param [in] y second operand for the addition in the high halfword, and the second + operand for the subtraction in the low halfword. + \return the addition of the low halfword of the first operand and the high + halfword of the second operand, in the low halfword of the return value.\n + the subtraction of the low halfword of the second operand from the + high halfword of the first operand, in the high halfword of the return value.\n + \remark + res[15:0] = val1[15:0] + val2[31:16] \n + res[31:16] = val1[31:16] - val2[15:0] + */ +__ALWAYS_INLINE uint32_t __SSAX(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = ((((int32_t)x << 16) >> 16) + (((int32_t)y) >> 16)) & (int32_t)0x0000FFFF; + s = ((((int32_t)x) >> 16) - (((int32_t)y << 16) >> 16)) & (int32_t)0x0000FFFF; + + return ((uint32_t)((s << 16) | (r))); +} + + +/** + \brief Dual 16-bit signed subtraction and addition with halved results. + \details This function enables you to exchange the two halfwords of one operand, perform one signed + 16-bit integer subtraction and one signed 16-bit addition, and halve the results. + \param [in] x first 16-bit operands. + \param [in] y second 16-bit operands. + \return the halved addition of the low halfword in the first operand and the + high halfword in the second operand, in the low halfword of the return value.\n + the halved subtraction of the low halfword in the second operand from the + high halfword in the first operand, in the high halfword of the return value. + \remark + res[15:0] = (val1[15:0] + val2[31:16]) >> 1 \n + res[31:16] = (val1[31:16] - val2[15:0]) >> 1 + */ +__ALWAYS_INLINE uint32_t __SHSAX(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = (((((int32_t)x << 16) >> 16) + (((int32_t)y) >> 16)) >> 1) & (int32_t)0x0000FFFF; + s = (((((int32_t)x) >> 16) - (((int32_t)y << 16) >> 16)) >> 1) & (int32_t)0x0000FFFF; + + return ((uint32_t)((s << 16) | (r))); +} + +/** + \brief Dual 16-bit unsigned subtraction and addition with halved results and exchange. + \details This function enables you to exchange the halfwords of the second operand, + subtract the high halfwords and add the low halfwords, halving the results. + \param [in] x first operand for the addition in the low halfword, and + the first operand for the subtraction in the high halfword. + \param [in] y second operand for the addition in the high halfword, and + the second operand for the subtraction in the low halfword. + \return the halved addition of the low halfword in the first operand and the + high halfword in the second operand, in the low halfword of the return value.\n + the halved subtraction of the low halfword in the second operand from the + high halfword in the first operand, in the high halfword of the return value. + \remark + res[15:0] = (val1[15:0] + val2[31:16]) >> 1 \n + res[31:16] = (val1[31:16] - val2[15:0]) >> 1 + */ +__ALWAYS_INLINE uint32_t __UHSAX(uint32_t x, uint32_t y) +{ + int32_t r, s; + + r = ((((x << 16) >> 16) + ((y) >> 16)) >> 1) & 0x0000FFFF; + s = ((((x) >> 16) - ((y << 16) >> 16)) >> 1) & 0x0000FFFF; + + return ((s << 16) | (r)); +} + +/** + \brief Dual 16-bit signed multiply with exchange returning difference. + \details This function enables you to perform two 16-bit signed multiplications, subtracting + one of the products from the other. The halfwords of the second operand are exchanged + before performing the arithmetic. This produces top * bottom and bottom * top multiplication. + \param [in] x first 16-bit operands for each multiplication. + \param [in] y second 16-bit operands for each multiplication. + \return the difference of the products of the two 16-bit signed multiplications. + \remark + p1 = val1[15:0] * val2[31:16] \n + p2 = val1[31:16] * val2[15:0] \n + res[31:0] = p1 - p2 + */ +__ALWAYS_INLINE uint32_t __SMUSDX(uint32_t x, uint32_t y) +{ + return ((uint32_t)(((((int32_t)x << 16) >> 16) * (((int32_t)y) >> 16)) - + ((((int32_t)x) >> 16) * (((int32_t)y << 16) >> 16)))); +} + +/** + \brief Sum of dual 16-bit signed multiply with exchange. + \details This function enables you to perform two 16-bit signed multiplications with exchanged + halfwords of the second operand, adding the products together. + \param [in] x first 16-bit operands for each multiplication. + \param [in] y second 16-bit operands for each multiplication. + \return the sum of the products of the two 16-bit signed multiplications with exchanged halfwords of the second operand. + \remark + p1 = val1[15:0] * val2[31:16] \n + p2 = val1[31:16] * val2[15:0] \n + res[31:0] = p1 + p2 + */ +__ALWAYS_INLINE uint32_t __SMUADX(uint32_t x, uint32_t y) +{ + return ((uint32_t)(((((int32_t)x << 16) >> 16) * (((int32_t)y) >> 16)) + + ((((int32_t)x) >> 16) * (((int32_t)y << 16) >> 16)))); +} + + +/** + \brief Saturating add. + \details This function enables you to obtain the saturating add of two integers. + \param [in] x first summand of the saturating add operation. + \param [in] y second summand of the saturating add operation. + \return the saturating addition of val1 and val2. + \remark + res[31:0] = SAT(val1 + SAT(val2)) + */ +__ALWAYS_INLINE int32_t __QADD(int32_t x, int32_t y) +{ + int32_t result; + + if (y >= 0) + { + if (x + y >= x) + { + result = x + y; + } + else + { + result = 0x7FFFFFFF; + } + } + else + { + if (x + y < x) + { + result = x + y; + } + else + { + result = 0x80000000; + } + } + + return result; +} + +/** + \brief Saturating subtract. + \details This function enables you to obtain the saturating add of two integers. + \param [in] x first summand of the saturating add operation. + \param [in] y second summand of the saturating add operation. + \return the saturating addition of val1 and val2. + \remark + res[31:0] = SAT(val1 + SAT(val2)) + */ +__ALWAYS_INLINE int32_t __QSUB(int32_t x, int32_t y) +{ + int64_t tmp; + int32_t result; + + tmp = (int64_t)x - (int64_t)y; + + if (tmp > 0x7fffffff) + { + tmp = 0x7fffffff; + } + else if (tmp < (-2147483647 - 1)) + { + tmp = -2147483647 - 1; + } + + result = tmp; + return result; +} + +/** + \brief Dual 16-bit signed multiply with single 32-bit accumulator. + \details This function enables you to perform two signed 16-bit multiplications, + adding both results to a 32-bit accumulate operand. + \param [in] x first 16-bit operands for each multiplication. + \param [in] y second 16-bit operands for each multiplication. + \param [in] sum accumulate value. + \return the product of each multiplication added to the accumulate value, as a 32-bit integer. + \remark + p1 = val1[15:0] * val2[15:0] \n + p2 = val1[31:16] * val2[31:16] \n + res[31:0] = p1 + p2 + val3[31:0] + */ +__ALWAYS_INLINE uint32_t __SMLAD(uint32_t x, uint32_t y, uint32_t sum) +{ + return ((uint32_t)(((((int32_t)x << 16) >> 16) * (((int32_t)y << 16) >> 16)) + + ((((int32_t)x) >> 16) * (((int32_t)y) >> 16)) + + (((int32_t)sum)))); +} + +/** + \brief Pre-exchanged dual 16-bit signed multiply with single 32-bit accumulator. + \details This function enables you to perform two signed 16-bit multiplications with exchanged + halfwords of the second operand, adding both results to a 32-bit accumulate operand. + \param [in] x first 16-bit operands for each multiplication. + \param [in] y second 16-bit operands for each multiplication. + \param [in] sum accumulate value. + \return the product of each multiplication with exchanged halfwords of the second + operand added to the accumulate value, as a 32-bit integer. + \remark + p1 = val1[15:0] * val2[31:16] \n + p2 = val1[31:16] * val2[15:0] \n + res[31:0] = p1 + p2 + val3[31:0] + */ +__ALWAYS_INLINE uint32_t __SMLADX(uint32_t x, uint32_t y, uint32_t sum) +{ + return ((uint32_t)(((((int32_t)x << 16) >> 16) * (((int32_t)y) >> 16)) + + ((((int32_t)x) >> 16) * (((int32_t)y << 16) >> 16)) + + (((int32_t)sum)))); +} + +/** + \brief Dual 16-bit signed multiply with exchange subtract with 32-bit accumulate. + \details This function enables you to perform two 16-bit signed multiplications, take the + difference of the products, subtracting the high halfword product from the low + halfword product, and add the difference to a 32-bit accumulate operand. + \param [in] x first 16-bit operands for each multiplication. + \param [in] y second 16-bit operands for each multiplication. + \param [in] sum accumulate value. + \return the difference of the product of each multiplication, added to the accumulate value. + \remark + p1 = val1[15:0] * val2[15:0] \n + p2 = val1[31:16] * val2[31:16] \n + res[31:0] = p1 - p2 + val3[31:0] + */ +__ALWAYS_INLINE uint32_t __SMLSD(uint32_t x, uint32_t y, uint32_t sum) +{ + return ((uint32_t)(((((int32_t)x << 16) >> 16) * (((int32_t)y << 16) >> 16)) - + ((((int32_t)x) >> 16) * (((int32_t)y) >> 16)) + + (((int32_t)sum)))); +} + +/** + \brief Dual 16-bit signed multiply with exchange subtract with 32-bit accumulate. + \details This function enables you to exchange the halfwords in the second operand, then perform two 16-bit + signed multiplications. The difference of the products is added to a 32-bit accumulate operand. + \param [in] x first 16-bit operands for each multiplication. + \param [in] y second 16-bit operands for each multiplication. + \param [in] sum accumulate value. + \return the difference of the product of each multiplication, added to the accumulate value. + \remark + p1 = val1[15:0] * val2[31:16] \n + p2 = val1[31:16] * val2[15:0] \n + res[31:0] = p1 - p2 + val3[31:0] + */ +__ALWAYS_INLINE uint32_t __SMLSDX(uint32_t x, uint32_t y, uint32_t sum) +{ + return ((uint32_t)(((((int32_t)x << 16) >> 16) * (((int32_t)y) >> 16)) - + ((((int32_t)x) >> 16) * (((int32_t)y << 16) >> 16)) + + (((int32_t)sum)))); +} + +/** + \brief Dual 16-bit signed multiply with single 64-bit accumulator. + \details This function enables you to perform two signed 16-bit multiplications, adding both results + to a 64-bit accumulate operand. Overflow is only possible as a result of the 64-bit addition. + This overflow is not detected if it occurs. Instead, the result wraps around modulo2^64. + \param [in] x first 16-bit operands for each multiplication. + \param [in] y second 16-bit operands for each multiplication. + \param [in] sum accumulate value. + \return the product of each multiplication added to the accumulate value. + \remark + p1 = val1[15:0] * val2[15:0] \n + p2 = val1[31:16] * val2[31:16] \n + sum = p1 + p2 + val3[63:32][31:0] \n + res[63:32] = sum[63:32] \n + res[31:0] = sum[31:0] + */ +__ALWAYS_INLINE uint64_t __SMLALD(uint32_t x, uint32_t y, uint64_t sum) +{ + return ((uint64_t)(((((int32_t)x << 16) >> 16) * (((int32_t)y << 16) >> 16)) + + ((((int32_t)x) >> 16) * (((int32_t)y) >> 16)) + + (((uint64_t)sum)))); +} + +/** + \brief Dual 16-bit signed multiply with exchange with single 64-bit accumulator. + \details This function enables you to exchange the halfwords of the second operand, and perform two + signed 16-bit multiplications, adding both results to a 64-bit accumulate operand. Overflow + is only possible as a result of the 64-bit addition. This overflow is not detected if it occurs. + Instead, the result wraps around modulo2^64. + \param [in] x first 16-bit operands for each multiplication. + \param [in] y second 16-bit operands for each multiplication. + \param [in] sum accumulate value. + \return the product of each multiplication added to the accumulate value. + \remark + p1 = val1[15:0] * val2[31:16] \n + p2 = val1[31:16] * val2[15:0] \n + sum = p1 + p2 + val3[63:32][31:0] \n + res[63:32] = sum[63:32] \n + res[31:0] = sum[31:0] + */ +__ALWAYS_INLINE uint64_t __SMLALDX(uint32_t x, uint32_t y, uint64_t sum) +{ + return ((uint64_t)(((((int32_t)x << 16) >> 16) * (((int32_t)y) >> 16)) + + ((((int32_t)x) >> 16) * (((int32_t)y << 16) >> 16)) + + (((uint64_t)sum)))); +} + +/** + \brief dual 16-bit signed multiply subtract with 64-bit accumulate. + \details This function It enables you to perform two 16-bit signed multiplications, take the difference + of the products, subtracting the high halfword product from the low halfword product, and add the + difference to a 64-bit accumulate operand. Overflow cannot occur during the multiplications or the + subtraction. Overflow can occur as a result of the 64-bit addition, and this overflow is not + detected. Instead, the result wraps round to modulo2^64. + \param [in] x first 16-bit operands for each multiplication. + \param [in] y second 16-bit operands for each multiplication. + \param [in] sum accumulate value. + \return the difference of the product of each multiplication, added to the accumulate value. + \remark + p1 = val1[15:0] * val2[15:0] \n + p2 = val1[31:16] * val2[31:16] \n + res[63:0] = p1 - p2 + val3[63:0] + */ +__ALWAYS_INLINE uint64_t __SMLSLD(uint32_t x, uint32_t y, uint64_t sum) +{ + return ((uint64_t)(((((int32_t)x << 16) >> 16) * (((int32_t)y << 16) >> 16)) - + ((((int32_t)x) >> 16) * (((int32_t)y) >> 16)) + + (((uint64_t)sum)))); +} + +/** + \brief Dual 16-bit signed multiply with exchange subtract with 64-bit accumulate. + \details This function enables you to exchange the halfwords of the second operand, perform two 16-bit multiplications, + adding the difference of the products to a 64-bit accumulate operand. Overflow cannot occur during the + multiplications or the subtraction. Overflow can occur as a result of the 64-bit addition, and this overflow + is not detected. Instead, the result wraps round to modulo2^64. + \param [in] x first 16-bit operands for each multiplication. + \param [in] y second 16-bit operands for each multiplication. + \param [in] sum accumulate value. + \return the difference of the product of each multiplication, added to the accumulate value. + \remark + p1 = val1[15:0] * val2[31:16] \n + p2 = val1[31:16] * val2[15:0] \n + res[63:0] = p1 - p2 + val3[63:0] + */ +__ALWAYS_INLINE uint64_t __SMLSLDX(uint32_t x, uint32_t y, uint64_t sum) +{ + return ((uint64_t)(((((int32_t)x << 16) >> 16) * (((int32_t)y) >> 16)) - + ((((int32_t)x) >> 16) * (((int32_t)y << 16) >> 16)) + + (((uint64_t)sum)))); +} + +/** + \brief 32-bit signed multiply with 32-bit truncated accumulator. + \details This function enables you to perform a signed 32-bit multiplications, adding the most + significant 32 bits of the 64-bit result to a 32-bit accumulate operand. + \param [in] x first operand for multiplication. + \param [in] y second operand for multiplication. + \param [in] sum accumulate value. + \return the product of multiplication (most significant 32 bits) is added to the accumulate value, as a 32-bit integer. + \remark + p = val1 * val2 \n + res[31:0] = p[61:32] + val3[31:0] + */ +__ALWAYS_INLINE uint32_t __SMMLA(int32_t x, int32_t y, int32_t sum) +{ + return (uint32_t)((int32_t)((int64_t)((int64_t)x * (int64_t)y) >> 32) + sum); +} + +/** + \brief Sum of dual 16-bit signed multiply. + \details This function enables you to perform two 16-bit signed multiplications, adding the products together. + \param [in] x first 16-bit operands for each multiplication. + \param [in] y second 16-bit operands for each multiplication. + \return the sum of the products of the two 16-bit signed multiplications. + \remark + p1 = val1[15:0] * val2[15:0] \n + p2 = val1[31:16] * val2[31:16] \n + res[31:0] = p1 + p2 + */ +__ALWAYS_INLINE uint32_t __SMUAD(uint32_t x, uint32_t y) +{ + return ((uint32_t)(((((int32_t)x << 16) >> 16) * (((int32_t)y << 16) >> 16)) + + ((((int32_t)x) >> 16) * (((int32_t)y) >> 16)))); +} + +/** + \brief Dual 16-bit signed multiply returning difference. + \details This function enables you to perform two 16-bit signed multiplications, taking the difference + of the products by subtracting the high halfword product from the low halfword product. + \param [in] x first 16-bit operands for each multiplication. + \param [in] y second 16-bit operands for each multiplication. + \return the difference of the products of the two 16-bit signed multiplications. + \remark + p1 = val1[15:0] * val2[15:0] \n + p2 = val1[31:16] * val2[31:16] \n + res[31:0] = p1 - p2 + */ +__ALWAYS_INLINE uint32_t __SMUSD(uint32_t x, uint32_t y) +{ + return ((uint32_t)(((((int32_t)x << 16) >> 16) * (((int32_t)y << 16) >> 16)) - + ((((int32_t)x) >> 16) * (((int32_t)y) >> 16)))); +} + +/** + \brief Dual extracted 8-bit to 16-bit signed addition. + \details This function enables you to extract two 8-bit values from the second operand (at bit positions + [7:0] and [23:16]), sign-extend them to 16-bits each, and add the results to the first operand. + \param [in] x values added to the sign-extended to 16-bit values. + \param [in] y two 8-bit values to be extracted and sign-extended. + \return the addition of val1 and val2, where the 8-bit values in val2[7:0] and + val2[23:16] have been extracted and sign-extended prior to the addition. + \remark + res[15:0] = val1[15:0] + SignExtended(val2[7:0]) \n + res[31:16] = val1[31:16] + SignExtended(val2[23:16]) + */ +__ALWAYS_INLINE uint32_t __SXTAB16(uint32_t x, uint32_t y) +{ + return ((uint32_t)((((((int32_t)y << 24) >> 24) + (((int32_t)x << 16) >> 16)) & (int32_t)0x0000FFFF) | + (((((int32_t)y << 8) >> 8) + (((int32_t)x >> 16) << 16)) & (int32_t)0xFFFF0000))); +} + +/** + \brief Extracted 16-bit to 32-bit unsigned addition. + \details This function enables you to extract two 8-bit values from one operand, zero-extend + them to 16 bits each, and add the results to two 16-bit values from another operand. + \param [in] x values added to the zero-extended to 16-bit values. + \param [in] y two 8-bit values to be extracted and zero-extended. + \return the addition of val1 and val2, where the 8-bit values in val2[7:0] and + val2[23:16] have been extracted and zero-extended prior to the addition. + \remark + res[15:0] = ZeroExt(val2[7:0] to 16 bits) + val1[15:0] \n + res[31:16] = ZeroExt(val2[31:16] to 16 bits) + val1[31:16] + */ +__ALWAYS_INLINE uint32_t __UXTAB16(uint32_t x, uint32_t y) +{ + return ((uint32_t)(((((y << 24) >> 24) + ((x << 16) >> 16)) & 0x0000FFFF) | + ((((y << 8) >> 8) + ((x >> 16) << 16)) & 0xFFFF0000))); +} + +/** + \brief Dual extract 8-bits and sign extend each to 16-bits. + \details This function enables you to extract two 8-bit values from an operand and sign-extend them to 16 bits each. + \param [in] x two 8-bit values in val[7:0] and val[23:16] to be sign-extended. + \return the 8-bit values sign-extended to 16-bit values.\n + sign-extended value of val[7:0] in the low halfword of the return value.\n + sign-extended value of val[23:16] in the high halfword of the return value. + \remark + res[15:0] = SignExtended(val[7:0]) \n + res[31:16] = SignExtended(val[23:16]) + */ +__ALWAYS_INLINE uint32_t __SXTB16(uint32_t x) +{ + return ((uint32_t)(((((int32_t)x << 24) >> 24) & (int32_t)0x0000FFFF) | + ((((int32_t)x << 8) >> 8) & (int32_t)0xFFFF0000))); +} + +/** + \brief Dual extract 8-bits and zero-extend to 16-bits. + \details This function enables you to extract two 8-bit values from an operand and zero-extend them to 16 bits each. + \param [in] x two 8-bit values in val[7:0] and val[23:16] to be zero-extended. + \return the 8-bit values sign-extended to 16-bit values.\n + sign-extended value of val[7:0] in the low halfword of the return value.\n + sign-extended value of val[23:16] in the high halfword of the return value. + \remark + res[15:0] = SignExtended(val[7:0]) \n + res[31:16] = SignExtended(val[23:16]) + */ +__ALWAYS_INLINE uint32_t __UXTB16(uint32_t x) +{ + return ((uint32_t)((((x << 24) >> 24) & 0x0000FFFF) | + (((x << 8) >> 8) & 0xFFFF0000))); +} + +#endif /* _CSI_SIMD_H_ */ |