rvv: add control instructions and system register access

Signed-off-by: Bruce Hoult <bruce@hoult.org>
Signed-off-by: Dave Wen <dave.wen@sifive.com>
Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/riscv/insns/vsetvl.h b/riscv/insns/vsetvl.h
new file mode 100644
index 0000000..773b984
--- /dev/null
+++ b/riscv/insns/vsetvl.h
@@ -0,0 +1 @@
+WRITE_RD(P.VU.set_vl(insn.rs1(), RS1, RS2));