diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2014-03-13 14:20:20 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2014-03-13 19:20:00 +0000 |
| commit | d011f116cc6a552216e14090b6a4b05bc84324e8 (patch) | |
| tree | 6d24580eac6e78b7575af541e0338992324c8b24 | |
| parent | c250e5246367449718dbb9822652efdbde92a985 (diff) | |
target-arm: A64: Implement FRINT*
Implement the FRINT* round-to-integral operations from
the 2-reg-misc category.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | target-arm/translate-a64.c | 45 |
1 files changed, 42 insertions, 3 deletions
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c index ca05ce8144..0c1dfa7a9d 100644 --- a/target-arm/translate-a64.c +++ b/target-arm/translate-a64.c @@ -6800,6 +6800,17 @@ static void handle_2misc_64(DisasContext *s, int opcode, bool u, tcg_temp_free_i32(tcg_shift); break; } + case 0x18: /* FRINTN */ + case 0x19: /* FRINTM */ + case 0x38: /* FRINTP */ + case 0x39: /* FRINTZ */ + case 0x58: /* FRINTA */ + case 0x79: /* FRINTI */ + gen_helper_rintd(tcg_rd, tcg_rn, tcg_fpstatus); + break; + case 0x59: /* FRINTX */ + gen_helper_rintd_exact(tcg_rd, tcg_rn, tcg_fpstatus); + break; default: g_assert_not_reached(); } @@ -8999,12 +9010,29 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) case 0x19: /* FRINTM */ case 0x38: /* FRINTP */ case 0x39: /* FRINTZ */ + need_rmode = true; + rmode = extract32(opcode, 5, 1) | (extract32(opcode, 0, 1) << 1); + /* fall through */ + case 0x59: /* FRINTX */ + case 0x79: /* FRINTI */ + need_fpstatus = true; + if (size == 3 && !is_q) { + unallocated_encoding(s); + return; + } + break; + case 0x58: /* FRINTA */ + need_rmode = true; + rmode = FPROUNDING_TIEAWAY; + need_fpstatus = true; + if (size == 3 && !is_q) { + unallocated_encoding(s); + return; + } + break; case 0x3c: /* URECPE */ case 0x3d: /* FRECPE */ case 0x56: /* FCVTXN, FCVTXN2 */ - case 0x58: /* FRINTA */ - case 0x59: /* FRINTX */ - case 0x79: /* FRINTI */ case 0x7c: /* URSQRTE */ case 0x7d: /* FRSQRTE */ unsupported_encoding(s, insn); @@ -9130,6 +9158,17 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) tcg_temp_free_i32(tcg_shift); break; } + case 0x18: /* FRINTN */ + case 0x19: /* FRINTM */ + case 0x38: /* FRINTP */ + case 0x39: /* FRINTZ */ + case 0x58: /* FRINTA */ + case 0x79: /* FRINTI */ + gen_helper_rints(tcg_res, tcg_op, tcg_fpstatus); + break; + case 0x59: /* FRINTX */ + gen_helper_rints_exact(tcg_res, tcg_op, tcg_fpstatus); + break; default: g_assert_not_reached(); } |