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authorPeter Maydell <peter.maydell@linaro.org>2014-03-17 16:31:50 +0000
committerPeter Maydell <peter.maydell@linaro.org>2014-03-17 16:31:50 +0000
commit03df01ed9a83a22790f3fd1cfbe7fc48caf9bfd0 (patch)
tree6092fef7285027e580edfec27ace33f95d26d600 /target-arm/translate-a64.c
parent37a706adbf96fbb05abbb8b17b14aebee266f2d1 (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> 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.c45
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();
}