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authorPeter Maydell <peter.maydell@linaro.org>2014-03-09 13:58:31 +0000
committerPeter Maydell <peter.maydell@linaro.org>2014-03-09 14:42:44 +0000
commit24fd8eaa2c4c58a59245330ac452f114f196dc7d (patch)
tree5d0f5f51d47f7a1dc64a0765e307d21cd8ea25a5
parentbda8084314a429302b5bae05fdbf754bea463d3c (diff)
downloadqemu-arm-24fd8eaa2c4c58a59245330ac452f114f196dc7d.tar.gz
target-arm: 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.c37
1 files changed, 34 insertions, 3 deletions
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c
index 6337d6fc9e..6a3597d4a3 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();
}
@@ -8996,12 +9007,21 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn)
case 0x19: /* FRINTM */
case 0x38: /* FRINTP */
case 0x39: /* FRINTZ */
- case 0x3c: /* URECPE */
- case 0x3d: /* FRECPE */
- case 0x56: /* FCVTXN, FCVTXN2 */
case 0x58: /* FRINTA */
+ need_rmode = true;
+ rmode = extract32(opcode, 5, 2) | (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 0x3c: /* URECPE */
+ case 0x3d: /* FRECPE */
+ case 0x56: /* FCVTXN, FCVTXN2 */
case 0x7c: /* URSQRTE */
case 0x7d: /* FRSQRTE */
unsupported_encoding(s, insn);
@@ -9127,6 +9147,17 @@ 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();
}