On 3/27/23 20:06, Song Gao wrote:
This patch includes: - VFCVT{L/H}.{S.H/D.S}; - VFCVT.{H.S/S.D}; - VFRINT[{RNE/RZ/RP/RM}].{S/D}; - VFTINT[{RNE/RZ/RP/RM}].{W.S/L.D}; - VFTINT[RZ].{WU.S/LU.D}; - VFTINT[{RNE/RZ/RP/RM}].W.D; - VFTINT[{RNE/RZ/RP/RM}]{L/H}.L.S; - VFFINT.{S.W/D.L}[U]; - VFFINT.S.L, VFFINT{L/H}.D.W.Signed-off-by: Song Gao <gaos...@loongson.cn> --- fpu/softfloat.c | 55 +++ include/fpu/softfloat.h | 27 ++ target/loongarch/disas.c | 56 +++ target/loongarch/helper.h | 56 +++ target/loongarch/insn_trans/trans_lsx.c.inc | 56 +++ target/loongarch/insns.decode | 56 +++ target/loongarch/lsx_helper.c | 369 ++++++++++++++++++++ 7 files changed, 675 insertions(+) diff --git a/fpu/softfloat.c b/fpu/softfloat.c index c7454c3eb1..79975c6b01 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -2988,6 +2988,25 @@ float64 float64_round_to_int(float64 a, float_status *s) return float64_round_pack_canonical(&p, s); }+#define FRINT_RM(rm, rmode, bits) \+float ## bits float ## bits ## _round_to_int_ ## rm( \ + float ## bits a, float_status *s) \ +{ \ + FloatParts64 pa; \ + float ## bits ## _unpack_canonical(&pa, a, s); \ + parts_round_to_int(&pa, rmode, 0, s, &float64_params); \ + return float ## bits ## _round_pack_canonical(&pa, s); \ +} +FRINT_RM(rne, float_round_nearest_even, 32) +FRINT_RM(rm, float_round_down, 32) +FRINT_RM(rp, float_round_up, 32) +FRINT_RM(rz, float_round_to_zero, 32) +FRINT_RM(rne, float_round_nearest_even, 64) +FRINT_RM(rm, float_round_down, 64) +FRINT_RM(rp, float_round_up, 64) +FRINT_RM(rz, float_round_to_zero, 64) +#undef FRINT_RM
No, you should simply swap your float_status rounding mode around the operation. See the arm/tcg gen_set_rmode function. r~
