Signed-off-by: Richard Henderson <[email protected]>
---
target/arm/tcg/helper-fp8-defs.h | 1 +
target/arm/tcg/fp8_helper.c | 23 +++++++++++++++++++++++
target/arm/tcg/translate-sve.c | 2 ++
target/arm/tcg/sve.decode | 1 +
4 files changed, 27 insertions(+)
diff --git a/target/arm/tcg/helper-fp8-defs.h b/target/arm/tcg/helper-fp8-defs.h
index 023a49e12f..e67fb191c2 100644
--- a/target/arm/tcg/helper-fp8-defs.h
+++ b/target/arm/tcg/helper-fp8-defs.h
@@ -16,5 +16,6 @@ DEF_HELPER_FLAGS_4(sme2_fcvtl_hb, TCG_CALL_NO_RWG, void, ptr,
ptr, env, i32)
DEF_HELPER_FLAGS_4(sve2_bfcvtn_bh, TCG_CALL_NO_RWG, void, ptr, ptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_fcvt_bh, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, env,
i32)
+DEF_HELPER_FLAGS_4(sve2_fcvtn_bh, TCG_CALL_NO_RWG, void, ptr, ptr, env, i32)
DEF_HELPER_FLAGS_5(advsimd_fcvt_bs, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, env,
i32)
diff --git a/target/arm/tcg/fp8_helper.c b/target/arm/tcg/fp8_helper.c
index 4689ffa88b..c32577a9e4 100644
--- a/target/arm/tcg/fp8_helper.c
+++ b/target/arm/tcg/fp8_helper.c
@@ -417,6 +417,29 @@ void HELPER(gvec_fcvt_bh)(void *vd, void *vn, void *vm,
clear_tail(vd, oprsz, simd_maxsz(desc));
}
+void HELPER(sve2_fcvtn_bh)(void *vd, void *vn, CPUARMState *env, uint32_t desc)
+{
+ FP8Context ctx = fp8_dst_start(env, desc, true);
+ fcvt_fp8_output_fn *output_fmt = fcvt_fp8_output_fmt[ctx.f8fmt];
+ uint16_t *n0 = vn;
+ uint16_t *n1 = vn + sizeof(ARMVectorReg);
+ uint8_t *d = vd;
+ bool osc = FIELD_EX64(env->vfp.fpmr, FPMR, OSC);
+ size_t oprsz = simd_oprsz(desc);
+ size_t nelem = oprsz / 2;
+
+ for (size_t i = 0; i < nelem; ++i) {
+ float16 e0 = n0[H2(i)];
+ float16 e1 = n1[H2(i)];
+ d[H1(2 * i + 0)] = fcvt_f16_to_fp8(e0, output_fmt,
+ ctx.scale, osc, &ctx.stat);
+ d[H1(2 * i + 1)] = fcvt_f16_to_fp8(e1, output_fmt,
+ ctx.scale, osc, &ctx.stat);
+ }
+
+ fp8_finish(env, &ctx);
+}
+
void HELPER(advsimd_fcvt_bs)(void *vd, void *vn, void *vm,
CPUARMState *env, uint32_t desc)
{
diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c
index 7276d9c44a..c7fcf27183 100644
--- a/target/arm/tcg/translate-sve.c
+++ b/target/arm/tcg/translate-sve.c
@@ -4099,6 +4099,8 @@ TRANS_FEAT(BF1CVTLT, aa64_sme2_or_sve2_f8cvt, do_f8cvt, a,
TRANS_FEAT(BF2CVTLT, aa64_sme2_or_sve2_f8cvt, do_f8cvt, a,
gen_helper_sve2_bfcvt, true, true)
+TRANS_FEAT(FCVTN, aa64_sme2_or_sve2_f8cvt, do_f8cvt,
+ a, gen_helper_sve2_fcvtn_bh, false, false)
TRANS_FEAT(BFCVTN, aa64_sme2_or_sve2_f8cvt, do_f8cvt,
a, gen_helper_sve2_bfcvtn_bh, false, false)
diff --git a/target/arm/tcg/sve.decode b/target/arm/tcg/sve.decode
index b6ef8ed8de..806953bc35 100644
--- a/target/arm/tcg/sve.decode
+++ b/target/arm/tcg/sve.decode
@@ -1101,6 +1101,7 @@ BF2CVT 01100101 00 001 000 001111 ..... .....
@rd_rn_e0
BF1CVTLT 01100101 00 001 001 001110 ..... ..... @rd_rn_e0
BF2CVTLT 01100101 00 001 001 001111 ..... ..... @rd_rn_e0
+FCVTN 01100101 00 001 010 001100 ....0 ..... @rd_rnx2 esz=1
BFCVTN 01100101 00 001 010 001110 ....0 ..... @rd_rnx2 esz=1
### SVE FP Compare with Zero Group
--
2.43.0
