mirror of https://gitee.com/openkylin/qemu.git
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
|
/*
|
||
|
|
* MIPS SIMD Architecture Module Instruction emulation helpers for QEMU.
|
||
|
|
*
|
||
|
|
* Copyright (c) 2014 Imagination Technologies
|
||
|
|
*
|
||
|
|
* This library is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
|
* License as published by the Free Software Foundation; either
|
||
|
|
* version 2 of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This library 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
|
||
|
|
* Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "cpu.h"
|
||
|
|
#include "exec/helper-proto.h"
|
||
|
|
|
||
|
|
/* Data format min and max values */
|
||
|
|
#define DF_BITS(df) (1 << ((df) + 3))
|
||
|
|
|
||
|
|
#define DF_MAX_INT(df) (int64_t)((1LL << (DF_BITS(df) - 1)) - 1)
|
||
|
|
#define M_MAX_INT(m) (int64_t)((1LL << ((m) - 1)) - 1)
|
||
|
|
|
||
|
|
#define DF_MIN_INT(df) (int64_t)(-(1LL << (DF_BITS(df) - 1)))
|
||
|
|
#define M_MIN_INT(m) (int64_t)(-(1LL << ((m) - 1)))
|
||
|
|
|
||
|
|
#define DF_MAX_UINT(df) (uint64_t)(-1ULL >> (64 - DF_BITS(df)))
|
||
|
|
#define M_MAX_UINT(m) (uint64_t)(-1ULL >> (64 - (m)))
|
||
|
|
|
||
|
|
#define UNSIGNED(x, df) ((x) & DF_MAX_UINT(df))
|
||
|
|
#define SIGNED(x, df) \
|
||
|
|
((((int64_t)x) << (64 - DF_BITS(df))) >> (64 - DF_BITS(df)))
|
||
|
|
|
||
|
|
/* Element-by-element access macros */
|
||
|
|
#define DF_ELEMENTS(df) (MSA_WRLEN / DF_BITS(df))
|
||
|
|
|
||
|
|
static inline void msa_move_v(wr_t *pwd, wr_t *pws)
|
||
|
|
{
|
||
|
|
uint32_t i;
|
||
|
|
|
||
|
|
for (i = 0; i < DF_ELEMENTS(DF_DOUBLE); i++) {
|
||
|
|
pwd->d[i] = pws->d[i];
|
||
|
|
}
|
||
|
|
}
|