vrldmi: Vector Rotate Left Dword then Mask Insert vrlwmi: Vector Rotate Left Word then Mask Insert Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> ( use extract[32,64] and rol[32,64], introduce mask helpers in internal.h ) Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
51 lines
2.3 KiB
C
51 lines
2.3 KiB
C
/*
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* PowerPC interal definitions for qemu.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef PPC_INTERNAL_H
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#define PPC_INTERNAL_H
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#define FUNC_MASK(name, ret_type, size, max_val) \
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static inline ret_type name(uint##size##_t start, \
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uint##size##_t end) \
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{ \
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ret_type ret, max_bit = size - 1; \
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\
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if (likely(start == 0)) { \
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ret = max_val << (max_bit - end); \
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} else if (likely(end == max_bit)) { \
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ret = max_val >> start; \
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} else { \
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ret = (((uint##size##_t)(-1ULL)) >> (start)) ^ \
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(((uint##size##_t)(-1ULL) >> (end)) >> 1); \
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if (unlikely(start > end)) { \
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return ~ret; \
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} \
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} \
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\
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return ret; \
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}
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#if defined(TARGET_PPC64)
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FUNC_MASK(MASK, target_ulong, 64, UINT64_MAX);
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#else
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FUNC_MASK(MASK, target_ulong, 32, UINT32_MAX);
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#endif
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FUNC_MASK(mask_u32, uint32_t, 32, UINT32_MAX);
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FUNC_MASK(mask_u64, uint64_t, 64, UINT64_MAX);
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#endif /* PPC_INTERNAL_H */
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