Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/tcg/helper-sme.h    |  2 ++
 target/arm/tcg/sme_helper.c    | 22 ++++++++++++++++++++++
 target/arm/tcg/translate-sme.c |  5 +++++
 target/arm/tcg/sme.decode      |  5 +++++
 4 files changed, 34 insertions(+)

diff --git a/target/arm/tcg/helper-sme.h b/target/arm/tcg/helper-sme.h
index be4621f2d9..6314ad7e01 100644
--- a/target/arm/tcg/helper-sme.h
+++ b/target/arm/tcg/helper-sme.h
@@ -219,3 +219,5 @@ DEF_HELPER_FLAGS_4(sme2_fcvt_n, TCG_CALL_NO_RWG, void, ptr, ptr, fpst, i32)
 DEF_HELPER_FLAGS_4(sme2_fcvtn, TCG_CALL_NO_RWG, void, ptr, ptr, fpst, i32)
 DEF_HELPER_FLAGS_4(sme2_fcvt_w, TCG_CALL_NO_RWG, void, ptr, ptr, fpst, i32)
 DEF_HELPER_FLAGS_4(sme2_fcvtl, TCG_CALL_NO_RWG, void, ptr, ptr, fpst, i32)
+DEF_HELPER_FLAGS_4(sme2_scvtf, TCG_CALL_NO_RWG, void, ptr, ptr, fpst, i32)
+DEF_HELPER_FLAGS_4(sme2_ucvtf, TCG_CALL_NO_RWG, void, ptr, ptr, fpst, i32)
diff --git a/target/arm/tcg/sme_helper.c b/target/arm/tcg/sme_helper.c
index b0e1fe845b..d69d57c4cb 100644
--- a/target/arm/tcg/sme_helper.c
+++ b/target/arm/tcg/sme_helper.c
@@ -1629,3 +1629,25 @@ void HELPER(sme2_fcvtl)(void *vd, void *vs, float_status *fpst, uint32_t desc)
         d1[H4(i)] = v1;
     }
 }
+
+void HELPER(sme2_scvtf)(void *vd, void *vs, float_status *fpst, uint32_t desc)
+{
+    size_t i, n = simd_oprsz(desc) / 4;
+    int32_t *d = vd;
+    float32 *s = vs;
+
+    for (i = 0; i < n; ++i) {
+        d[i] = int32_to_float32(s[i], fpst);
+    }
+}
+
+void HELPER(sme2_ucvtf)(void *vd, void *vs, float_status *fpst, uint32_t desc)
+{
+    size_t i, n = simd_oprsz(desc) / 4;
+    uint32_t *d = vd;
+    float32 *s = vs;
+
+    for (i = 0; i < n; ++i) {
+        d[i] = uint32_to_float32(s[i], fpst);
+    }
+}
diff --git a/target/arm/tcg/translate-sme.c b/target/arm/tcg/translate-sme.c
index 3bf2b6935f..dce3b56de2 100644
--- a/target/arm/tcg/translate-sme.c
+++ b/target/arm/tcg/translate-sme.c
@@ -1370,3 +1370,8 @@ TRANS_FEAT(FCVTZS, aa64_sme2, do_zz_fpst, a, 0,
            FPST_A64, gen_helper_gvec_vcvt_rz_fs)
 TRANS_FEAT(FCVTZU, aa64_sme2, do_zz_fpst, a, 0,
            FPST_A64, gen_helper_gvec_vcvt_rz_fu)
+
+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)
diff --git a/target/arm/tcg/sme.decode b/target/arm/tcg/sme.decode
index 79df2dcd2b..449d97bd28 100644
--- a/target/arm/tcg/sme.decode
+++ b/target/arm/tcg/sme.decode
@@ -746,3 +746,8 @@ FCVTZS          11000001 001 00001 111000 ....0 ....0       @zz_2x2
 FCVTZS          11000001 001 10001 111000 ...00 ...00       @zz_4x4
 FCVTZU          11000001 001 00001 111000 ....1 ....0       @zz_2x2
 FCVTZU          11000001 001 10001 111000 ...01 ...00       @zz_4x4
+
+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
-- 
2.43.0

On Wed, 2 Jul 2025 at 13:38, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---

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

thanks
-- PMM