diff options
Diffstat (limited to 'target-arm/neon_helper.c')
| -rw-r--r-- | target-arm/neon_helper.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/target-arm/neon_helper.c b/target-arm/neon_helper.c index be6fbd997e..13752baf63 100644 --- a/target-arm/neon_helper.c +++ b/target-arm/neon_helper.c @@ -1133,6 +1133,18 @@ uint32_t HELPER(neon_cnt_u8)(uint32_t x) return x; } +/* Reverse bits in each 8 bit word */ +uint32_t HELPER(neon_rbit_u8)(uint32_t x) +{ + x = ((x & 0xf0f0f0f0) >> 4) + | ((x & 0x0f0f0f0f) << 4); + x = ((x & 0x88888888) >> 3) + | ((x & 0x44444444) >> 1) + | ((x & 0x22222222) << 1) + | ((x & 0x11111111) << 3); + return x; +} + #define NEON_QDMULH16(dest, src1, src2, round) do { \ uint32_t tmp = (int32_t)(int16_t) src1 * (int16_t) src2; \ if ((tmp ^ (tmp << 1)) & SIGNBIT) { \ @@ -1811,6 +1823,22 @@ uint32_t HELPER(neon_acgt_f32)(uint32_t a, uint32_t b, void *fpstp) return -float32_lt(f1, f0, fpst); } +uint64_t HELPER(neon_acge_f64)(uint64_t a, uint64_t b, void *fpstp) +{ + float_status *fpst = fpstp; + float64 f0 = float64_abs(make_float64(a)); + float64 f1 = float64_abs(make_float64(b)); + return -float64_le(f1, f0, fpst); +} + +uint64_t HELPER(neon_acgt_f64)(uint64_t a, uint64_t b, void *fpstp) +{ + float_status *fpst = fpstp; + float64 f0 = float64_abs(make_float64(a)); + float64 f1 = float64_abs(make_float64(b)); + return -float64_lt(f1, f0, fpst); +} + #define ELEM(V, N, SIZE) (((V) >> ((N) * (SIZE))) & ((1ull << (SIZE)) - 1)) void HELPER(neon_qunzip8)(CPUARMState *env, uint32_t rd, uint32_t rm) |