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authorAlex Bennée <alex.bennee@linaro.org>2014-02-25 12:21:05 +0000
committerPeter Maydell <peter.maydell@linaro.org>2014-03-08 20:40:25 +0000
commitb399d6dd6a4649f1100741dd0dc0d37db7a56c68 (patch)
treede3220fd765525059f60a7831d2fdd5e410bde29
parent745849b895b5f640e98be04ca75cd9679dfd04b9 (diff)
downloadqemu-arm-b399d6dd6a4649f1100741dd0dc0d37db7a56c68.tar.gz
target-arm: A64: Add FSQRT to C3.6.17 (two misc)
Implement FSQRT in the two-reg-misc category. GCC uses this instruction form. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--target-arm/translate-a64.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c
index da4063ba37..8313f7f16c 100644
--- a/target-arm/translate-a64.c
+++ b/target-arm/translate-a64.c
@@ -6623,6 +6623,9 @@ static void handle_2misc_64(DisasContext *s, int opcode, bool u,
case 0x6f: /* FNEG */
gen_helper_vfp_negd(tcg_rd, tcg_rn);
break;
+ case 0x7f: /* FSQRT */
+ gen_helper_vfp_sqrtd(tcg_rd, tcg_rn, cpu_env);
+ break;
default:
g_assert_not_reached();
}
@@ -8392,6 +8395,12 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn)
}
handle_2misc_fcmp_zero(s, opcode, false, u, is_q, size, rn, rd);
return;
+ case 0x7f: /* FSQRT */
+ if (size == 3 && !is_q) {
+ unallocated_encoding(s);
+ return;
+ }
+ break;
case 0x16: /* FCVTN, FCVTN2 */
case 0x17: /* FCVTL, FCVTL2 */
case 0x18: /* FRINTN */
@@ -8416,7 +8425,6 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn)
case 0x7b: /* FCVTZU */
case 0x7c: /* URSQRTE */
case 0x7d: /* FRSQRTE */
- case 0x7f: /* FSQRT */
unsupported_encoding(s, insn);
return;
default:
@@ -8493,6 +8501,9 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn)
case 0x6f: /* FNEG */
gen_helper_vfp_negs(tcg_res, tcg_op);
break;
+ case 0x7f: /* FSQRT */
+ gen_helper_vfp_sqrts(tcg_res, tcg_op, cpu_env);
+ break;
default:
g_assert_not_reached();
}