[util,reggen] Format enum fields in hex
As well as showing them in hex (which might make more sense for some
constants), we also pad out to the correct width. This makes tables
line up nicely and might also make it easier to interpret values in
waves/debug prints.
Signed-off-by: Rupert Swarbrick <rswarbrick@lowrisc.org>
diff --git a/util/reggen/gen_html.py b/util/reggen/gen_html.py
index e8c427b..5f29358 100644
--- a/util/reggen/gen_html.py
+++ b/util/reggen/gen_html.py
@@ -204,14 +204,19 @@
if field.enum is not None:
desc_parts.append('<table>')
+
+ # Add two to include the "0x" part
+ hex_width = 2 + ((field.bits.width() + 3) // 4)
+
for enum in field.enum:
enum_desc_paras = expand_paras(enum.desc, rnames)
desc_parts.append('<tr>'
- '<td>{val}</td>'
+ '<td>{val:#0{hex_width}x}</td>'
'<td>{name}</td>'
'<td>{desc}</td>'
'</tr>\n'
.format(val=enum.value,
+ hex_width=hex_width,
name=enum.name,
desc=''.join(enum_desc_paras)))
desc_parts.append('</table>')
