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| author | Peter Maydell <peter.maydell@linaro.org> | 2014-03-17 16:31:50 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2014-03-17 16:31:50 +0000 |
| commit | 03df01ed9a83a22790f3fd1cfbe7fc48caf9bfd0 (patch) | |
| tree | 6092fef7285027e580edfec27ace33f95d26d600 /target-arm/translate-a64.c | |
| parent | 37a706adbf96fbb05abbb8b17b14aebee266f2d1 (diff) | |
| download | qemu-03df01ed9a83a22790f3fd1cfbe7fc48caf9bfd0.tar.gz | |
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>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 1394822294-14837-16-git-send-email-peter.maydell@linaro.org
Diffstat (limited to 'target-arm/translate-a64.c')
| -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 b67cd1df51..32eed418b0 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(); } |