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Diffstat (limited to 'riscv/insns/c_lwsp.h')
-rw-r--r--riscv/insns/c_lwsp.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/riscv/insns/c_lwsp.h b/riscv/insns/c_lwsp.h
index ed4dcf3..b3d74db 100644
--- a/riscv/insns/c_lwsp.h
+++ b/riscv/insns/c_lwsp.h
@@ -1,2 +1,3 @@
require_extension('C');
+require(insn.rvc_rd() != 0);
WRITE_RD(MMU.load_int32(RVC_SP + insn.rvc_lwsp_imm()));