1 files changed, 7 insertions, 2 deletions
diff --git a/riscv/insns/sd.h b/riscv/insns/sd.h
index 5c9dd4e..c80f137 100644
--- a/riscv/insns/sd.h
+++ b/riscv/insns/sd.h
@@ -1,2 +1,7 @@
-require_rv64;
-MMU.store<uint64_t>(RS1 + insn.s_imm(), RS2);
+require((xlen == 64) || p->extension_enabled(EXT_ZILSD));
+
+if (xlen == 32) {
+  MMU.store<uint64_t>(RS1 + insn.s_imm(), RS2_PAIR);
+} else {
+  MMU.store<uint64_t>(RS1 + insn.s_imm(), RS2);
+}