From 3b1aec0c7784e79f017def99207ac1baae4a31a0 Mon Sep 17 00:00:00 2001
From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Fri, 28 Jun 2019 13:44:01 +0100
Subject: [PATCH] add comment

---
 riscv/sv.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/riscv/sv.cc b/riscv/sv.cc
index 3116ebb..f5b049c 100644
--- a/riscv/sv.cc
+++ b/riscv/sv.cc
@@ -20,6 +20,9 @@ uint8_t maxelwidth(uint8_t wid1, uint8_t wid2)
     return std::max(wid1, wid2);
 }
 
+/* convenience routines to map from compact 8-bit to 16-bit format,
+ * for use in new VBLOCK format
+ */
 void sv_regmap_8to16(union sv_reg_csr_entry8 const& r8,
                      union sv_reg_csr_entry &r16)
 {
-- 
2.30.2