1 files changed, 17 insertions, 0 deletions
diff --git a/riscv/insns/vrol_vv.h b/riscv/insns/vrol_vv.h
new file mode 100644
index 0000000..fb2e483
--- /dev/null
+++ b/riscv/insns/vrol_vv.h
@@ -0,0 +1,17 @@
+// vrol.vv vd, vs2, vs1, vm
+
+#include "zvk_ext_macros.h"
+
+require_zvbb;
+
+// 'mask' selects the low log2(vsew) bits of the shift amount,
+// to limit the maximum shift to "vsew - 1" bits.
+const reg_t mask = P.VU.vsew - 1;
+
+VI_VV_ULOOP
+({
+  // For .vv, the shift amount comes from the vs1 element.
+  const reg_t lshift = vs1 & mask;
+  const reg_t rshift = (-lshift) & mask;
+  vd = (vs2 << lshift) | (vs2 >> rshift);
+})