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authorPeter Maydell <peter.maydell@linaro.org>2020-08-28 19:33:27 +0100
committerPeter Maydell <peter.maydell@linaro.org>2020-09-01 11:19:32 +0100
commit0a6f4b4cb338665b81ad824d9a6868932461b7f7 (patch)
tree713a4d476b82d6cc8bee752759282de4801d0392 /target/arm/vfp_helper.c
parent11e78fecdf2d605cfed33aa09bbcf0cc4fb95886 (diff)
downloadqemu-arm-0a6f4b4cb338665b81ad824d9a6868932461b7f7.tar.gz
target/arm: Implement VFP fp16 VRINT*
Implement the fp16 version of the VFP VRINT* insns. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-19-peter.maydell@linaro.org
Diffstat (limited to 'target/arm/vfp_helper.c')
-rw-r--r--target/arm/vfp_helper.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/target/arm/vfp_helper.c b/target/arm/vfp_helper.c
index ab3f0b170a..586dfd22e5 100644
--- a/target/arm/vfp_helper.c
+++ b/target/arm/vfp_helper.c
@@ -1019,6 +1019,11 @@ float64 VFP_HELPER(muladd, d)(float64 a, float64 b, float64 c, void *fpstp)
}
/* ARMv8 round to integral */
+dh_ctype_f16 HELPER(rinth_exact)(dh_ctype_f16 x, void *fp_status)
+{
+ return float16_round_to_int(x, fp_status);
+}
+
float32 HELPER(rints_exact)(float32 x, void *fp_status)
{
return float32_round_to_int(x, fp_status);
@@ -1029,6 +1034,22 @@ float64 HELPER(rintd_exact)(float64 x, void *fp_status)
return float64_round_to_int(x, fp_status);
}
+dh_ctype_f16 HELPER(rinth)(dh_ctype_f16 x, void *fp_status)
+{
+ int old_flags = get_float_exception_flags(fp_status), new_flags;
+ float16 ret;
+
+ ret = float16_round_to_int(x, fp_status);
+
+ /* Suppress any inexact exceptions the conversion produced */
+ if (!(old_flags & float_flag_inexact)) {
+ new_flags = get_float_exception_flags(fp_status);
+ set_float_exception_flags(new_flags & ~float_flag_inexact, fp_status);
+ }
+
+ return ret;
+}
+
float32 HELPER(rints)(float32 x, void *fp_status)
{
int old_flags = get_float_exception_flags(fp_status), new_flags;