From e65dca0c66e3a58c1b295bc0029f519a3eda333d Mon Sep 17 00:00:00 2001
From: Jon French
Date: Mon, 21 May 2018 15:20:59 +0100
Subject: further RISCV mapping: all extant non-compressed instructions done

---
 src/gen_lib/sail_string.lem | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/gen_lib')

diff --git a/src/gen_lib/sail_string.lem b/src/gen_lib/sail_string.lem
index f31e612b..b1f0fbe3 100644
--- a/src/gen_lib/sail_string.lem
+++ b/src/gen_lib/sail_string.lem
@@ -76,6 +76,16 @@ let spaces_matches_prefix s =
   | n -> Just ((), n)
   end
 
+let hex_bits_5_matches_prefix s =
+  match maybe_int_of_prefix s with
+  | Nothing -> Nothing
+  | Just (n, len) ->
+     if 0 <= n && n < 32 then
+       Just ((of_int 5 n, len))
+     else
+       Nothing
+  end
+
 let hex_bits_6_matches_prefix s =
   match maybe_int_of_prefix s with
   | Nothing -> Nothing
-- 
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