[v3] target/arm: Implement FEAT_SME2p1

[PATCH v3 46/97] target/arm: Implement SME2 FRINTN, FRINTP, FRINTM, FRINTA

Posted by Richard Henderson 2 months, 1 week ago

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/tcg/translate-sme.c | 9 +++++++++
 target/arm/tcg/sme.decode      | 9 +++++++++
 2 files changed, 18 insertions(+)

diff --git a/target/arm/tcg/translate-sme.c b/target/arm/tcg/translate-sme.c
index dce3b56de2..4fbc61ae27 100644
--- a/target/arm/tcg/translate-sme.c
+++ b/target/arm/tcg/translate-sme.c
@@ -1375,3 +1375,12 @@ TRANS_FEAT(SCVTF, aa64_sme2, do_zz_fpst, a, 0,
            FPST_A64, gen_helper_sme2_scvtf)
 TRANS_FEAT(UCVTF, aa64_sme2, do_zz_fpst, a, 0,
            FPST_A64, gen_helper_sme2_ucvtf)
+
+TRANS_FEAT(FRINTN, aa64_sme2, do_zz_fpst, a, float_round_nearest_even,
+           FPST_A64, gen_helper_gvec_vrint_rm_s)
+TRANS_FEAT(FRINTP, aa64_sme2, do_zz_fpst, a, float_round_up,
+           FPST_A64, gen_helper_gvec_vrint_rm_s)
+TRANS_FEAT(FRINTM, aa64_sme2, do_zz_fpst, a, float_round_down,
+           FPST_A64, gen_helper_gvec_vrint_rm_s)
+TRANS_FEAT(FRINTA, aa64_sme2, do_zz_fpst, a, float_round_ties_away,
+           FPST_A64, gen_helper_gvec_vrint_rm_s)
diff --git a/target/arm/tcg/sme.decode b/target/arm/tcg/sme.decode
index 449d97bd28..9cc25622d4 100644
--- a/target/arm/tcg/sme.decode
+++ b/target/arm/tcg/sme.decode
@@ -751,3 +751,12 @@ SCVTF           11000001 001 00010 111000 ....0 ....0       @zz_2x2
 SCVTF           11000001 001 10010 111000 ...00 ...00       @zz_4x4
 UCVTF           11000001 001 00010 111000 ....1 ....0       @zz_2x2
 UCVTF           11000001 001 10010 111000 ...01 ...00       @zz_4x4
+
+FRINTN          11000001 101 01000 111000 ....0 ....0       @zz_2x2
+FRINTN          11000001 101 11000 111000 ...00 ...00       @zz_4x4
+FRINTP          11000001 101 01001 111000 ....0 ....0       @zz_2x2
+FRINTP          11000001 101 11001 111000 ...00 ...00       @zz_4x4
+FRINTM          11000001 101 01010 111000 ....0 ....0       @zz_2x2
+FRINTM          11000001 101 11010 111000 ...00 ...00       @zz_4x4
+FRINTA          11000001 101 01100 111000 ....0 ....0       @zz_2x2
+FRINTA          11000001 101 11100 111000 ...00 ...00       @zz_4x4
-- 
2.43.0

Re: [PATCH v3 46/97] target/arm: Implement SME2 FRINTN, FRINTP, FRINTM, FRINTA

Posted by Peter Maydell 2 months, 1 week ago

On Wed, 2 Jul 2025 at 13:38, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  target/arm/tcg/translate-sme.c | 9 +++++++++
>  target/arm/tcg/sme.decode      | 9 +++++++++
>  2 files changed, 18 insertions(+)

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM