diff options
Diffstat (limited to 'target-arm/neon_helper.c')
| -rw-r--r-- | target-arm/neon_helper.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/target-arm/neon_helper.c b/target-arm/neon_helper.c index dae063ea1a..20f3c162cd 100644 --- a/target-arm/neon_helper.c +++ b/target-arm/neon_helper.c @@ -632,6 +632,53 @@ uint64_t HELPER(neon_qshl_s64)(CPUState *env, uint64_t valop, uint64_t shiftop) return val; } +#define NEON_FN(dest, src1, src2) do { \ + if (src1 & (1 << (sizeof(src1) * 8 - 1))) { \ + SET_QC(); \ + dest = 0; \ + } else { \ + int8_t tmp; \ + tmp = (int8_t)src2; \ + if (tmp >= (ssize_t)sizeof(src1) * 8) { \ + if (src1) { \ + SET_QC(); \ + dest = ~0; \ + } else { \ + dest = 0; \ + } \ + } else if (tmp <= -(ssize_t)sizeof(src1) * 8) { \ + dest = 0; \ + } else if (tmp < 0) { \ + dest = src1 >> -tmp; \ + } else { \ + dest = src1 << tmp; \ + if ((dest >> tmp) != src1) { \ + SET_QC(); \ + dest = ~0; \ + } \ + } \ + }} while (0) +NEON_VOP_ENV(qshlu_s8, neon_u8, 4) +NEON_VOP_ENV(qshlu_s16, neon_u16, 2) +#undef NEON_FN + +uint32_t HELPER(neon_qshlu_s32)(CPUState *env, uint32_t valop, uint32_t shiftop) +{ + if ((int32_t)valop < 0) { + SET_QC(); + return 0; + } + return helper_neon_qshl_u32(env, valop, shiftop); +} + +uint64_t HELPER(neon_qshlu_s64)(CPUState *env, uint64_t valop, uint64_t shiftop) +{ + if ((int64_t)valop < 0) { + SET_QC(); + return 0; + } + return helper_neon_qshl_u64(env, valop, shiftop); +} /* FIXME: This is wrong. */ #define NEON_FN(dest, src1, src2) do { \ |