1 files changed, 2 insertions, 0 deletions
diff --git a/riscv/insns/c_sub3.h b/riscv/insns/c_sub3.h
new file mode 100644
index 0000000..50ed2c9
--- /dev/null
+++ b/riscv/insns/c_sub3.h
@@ -0,0 +1,2 @@
+require_extension('C');
+WRITE_RVC_RDS(sext_xlen(RVC_RS1S - RVC_RS2S));