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Diffstat (limited to 'src/gen_lib/sail_string.lem')
| -rw-r--r-- | src/gen_lib/sail_string.lem | 10 |
1 files changed, 10 insertions, 0 deletions
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 |