Patch # 1:
--- uasm.orig	2017-11-30 13:32:14.000000000 +0100
+++ uasm	2019-07-14 19:05:16.214517411 +0200
@@ -114,7 +114,7 @@
 
             line_offset = 0
             for d in model.lines:
-                line, _ = mm.parser.pos_to_linecol(d._tx_position)
+                line, _ = model._tx_parser.pos_to_linecol(d._tx_position)
                 line -= line_offset + 1
                 if token_type(d) == 'LabelAnchor':
                     current_label = d.label
@@ -140,7 +140,7 @@
                     current_label = None
                 elif token_type(d) == 'PreprocessorDirective':
                     if d.Filename == f:
-                        line, _ = mm.parser.pos_to_linecol(d._tx_position)
+                        line, _ = model._tx_parser.pos_to_linecol(d._tx_position)
                         line_offset = line - d.LineNumber
                 else:
                     raise ValueError('Unexpected token type {0}'.format(token_type(d)))

Patch #2

--- development-guide.asciidoc.orig	2017-11-30 13:32:14.000000000 +0100
+++ development-guide.asciidoc	2019-07-14 19:07:31.253811900 +0200
@@ -1,7 +1,7 @@
 = s80x86 Core Development Guide
 Jamie Iles <jamie@jamieiles.com>
 
-:source-highlighter: coderay
+//:source-highlighter: coderay
 
 = Developer's Guide