diff options
Diffstat (limited to 'target/arm')
| -rw-r--r-- | target/arm/helper.h | 2 | ||||
| -rw-r--r-- | target/arm/op_helper.c | 23 | ||||
| -rw-r--r-- | target/arm/translate-neon.c.inc | 44 |
3 files changed, 29 insertions, 40 deletions
diff --git a/target/arm/helper.h b/target/arm/helper.h index 774d2cd..ff8148d 100644 --- a/target/arm/helper.h +++ b/target/arm/helper.h @@ -245,7 +245,7 @@ DEF_HELPER_FLAGS_2(rsqrte_f32, TCG_CALL_NO_RWG, f32, f32, ptr) DEF_HELPER_FLAGS_2(rsqrte_f64, TCG_CALL_NO_RWG, f64, f64, ptr) DEF_HELPER_FLAGS_1(recpe_u32, TCG_CALL_NO_RWG, i32, i32) DEF_HELPER_FLAGS_1(rsqrte_u32, TCG_CALL_NO_RWG, i32, i32) -DEF_HELPER_FLAGS_4(neon_tbl, TCG_CALL_NO_RWG, i32, i32, i32, ptr, i32) +DEF_HELPER_FLAGS_4(neon_tbl, TCG_CALL_NO_RWG, i64, env, i32, i64, i64) DEF_HELPER_3(shl_cc, i32, env, i32, i32) DEF_HELPER_3(shr_cc, i32, env, i32, i32) diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c index b106521..aa13b97 100644 --- a/target/arm/op_helper.c +++ b/target/arm/op_helper.c @@ -68,21 +68,24 @@ void raise_exception_ra(CPUARMState *env, uint32_t excp, uint32_t syndrome, cpu_loop_exit_restore(cs, ra); } -uint32_t HELPER(neon_tbl)(uint32_t ireg, uint32_t def, void *vn, - uint32_t maxindex) +uint64_t HELPER(neon_tbl)(CPUARMState *env, uint32_t desc, + uint64_t ireg, uint64_t def) { - uint32_t val, shift; - uint64_t *table = vn; + uint64_t tmp, val = 0; + uint32_t maxindex = ((desc & 3) + 1) * 8; + uint32_t base_reg = desc >> 2; + uint32_t shift, index, reg; - val = 0; - for (shift = 0; shift < 32; shift += 8) { - uint32_t index = (ireg >> shift) & 0xff; + for (shift = 0; shift < 64; shift += 8) { + index = (ireg >> shift) & 0xff; if (index < maxindex) { - uint32_t tmp = (table[index >> 3] >> ((index & 7) << 3)) & 0xff; - val |= tmp << shift; + reg = base_reg + (index >> 3); + tmp = *aa32_vfp_dreg(env, reg); + tmp = ((tmp >> ((index & 7) << 3)) & 0xff) << shift; } else { - val |= def & (0xff << shift); + tmp = def & (0xffull << shift); } + val |= tmp; } return val; } diff --git a/target/arm/translate-neon.c.inc b/target/arm/translate-neon.c.inc index 59368cb..0ae95cb 100644 --- a/target/arm/translate-neon.c.inc +++ b/target/arm/translate-neon.c.inc @@ -2861,9 +2861,8 @@ static bool trans_VEXT(DisasContext *s, arg_VEXT *a) static bool trans_VTBL(DisasContext *s, arg_VTBL *a) { - int n; - TCGv_i32 tmp, tmp2, tmp3, tmp4; - TCGv_ptr ptr1; + TCGv_i64 val, def; + TCGv_i32 desc; if (!arm_dc_feature(s, ARM_FEATURE_NEON)) { return false; @@ -2879,43 +2878,30 @@ static bool trans_VTBL(DisasContext *s, arg_VTBL *a) return true; } - n = a->len + 1; - if ((a->vn + n) > 32) { + if ((a->vn + a->len + 1) > 32) { /* * This is UNPREDICTABLE; we choose to UNDEF to avoid the * helper function running off the end of the register file. */ return false; } - n <<= 3; - tmp = tcg_temp_new_i32(); - if (a->op) { - read_neon_element32(tmp, a->vd, 0, MO_32); - } else { - tcg_gen_movi_i32(tmp, 0); - } - tmp2 = tcg_temp_new_i32(); - read_neon_element32(tmp2, a->vm, 0, MO_32); - ptr1 = vfp_reg_ptr(true, a->vn); - tmp4 = tcg_const_i32(n); - gen_helper_neon_tbl(tmp2, tmp2, tmp, ptr1, tmp4); + desc = tcg_const_i32((a->vn << 2) | a->len); + def = tcg_temp_new_i64(); if (a->op) { - read_neon_element32(tmp, a->vd, 1, MO_32); + read_neon_element64(def, a->vd, 0, MO_64); } else { - tcg_gen_movi_i32(tmp, 0); + tcg_gen_movi_i64(def, 0); } - tmp3 = tcg_temp_new_i32(); - read_neon_element32(tmp3, a->vm, 1, MO_32); - gen_helper_neon_tbl(tmp3, tmp3, tmp, ptr1, tmp4); - tcg_temp_free_i32(tmp); - tcg_temp_free_i32(tmp4); - tcg_temp_free_ptr(ptr1); + val = tcg_temp_new_i64(); + read_neon_element64(val, a->vm, 0, MO_64); - write_neon_element32(tmp2, a->vd, 0, MO_32); - write_neon_element32(tmp3, a->vd, 1, MO_32); - tcg_temp_free_i32(tmp2); - tcg_temp_free_i32(tmp3); + gen_helper_neon_tbl(val, cpu_env, desc, val, def); + write_neon_element64(val, a->vd, 0, MO_64); + + tcg_temp_free_i64(def); + tcg_temp_free_i64(val); + tcg_temp_free_i32(desc); return true; } |