rvv: replace vn suffic by 'w'

Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/riscv/insns/vnclipu_wv.h b/riscv/insns/vnclipu_wv.h
new file mode 100644
index 0000000..217e82f
--- /dev/null
+++ b/riscv/insns/vnclipu_wv.h
@@ -0,0 +1,21 @@
+// vnclipu: vd[i] = clip(round(vs2[i] + rnd) >> vs1[i])
+VRM xrm = P.VU.get_vround_mode();
+uint64_t int_max = ~(-1ll << P.VU.vsew);
+VI_VVXI_LOOP_NARROW
+({
+  uint128_t result = vs2_u;
+  unsigned shift = vs1 & ((sew * 2) - 1);
+
+  // rounding
+  INT_ROUNDING(result, xrm, shift);
+
+  result = result >> shift;
+
+  // saturation
+  if (result & (uint64_t)(-1ll << sew)) {
+    result = int_max;
+    P.VU.vxsat = 1;
+  }
+
+  vd = result;
+}, true)