diff --git a/riscv/insns/psll_dws.h b/riscv/insns/psll_dws.h
index ec71edbf..578814fb 100644
--- a/riscv/insns/psll_dws.h
+++ b/riscv/insns/psll_dws.h
@@ -1,7 +1,6 @@
 require_rv32;
 P_RD_RS1_DW_LOOP(32, 32, {
-  uint8_t m = P_FIELD(RS2, 0, 8);
+  uint8_t m = RS2 & 0x1F;
   const uint64_t maskN = 0xFFFFFFFFull;
-  if (m >= 32) p_rd = 0;
-  else p_rd = (uint32_t)((p_rs1 << m) & maskN);
+  p_rd = (uint32_t)((p_rs1 << m) & maskN);
 })
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