@@ -230,6 +230,7 @@ def __init__(self, completekey='tab', stdin=None, stdout=None, skip=None,
230230 pass
231231 self .allow_kbdint = False
232232 self .nosigint = nosigint
233+ self .assem_mode = False
233234
234235 # Read ~/.pdbrc and ./.pdbrc
235236 self .rcLines = []
@@ -1284,6 +1285,19 @@ def do_pp(self, arg):
12841285 complete_p = _complete_expression
12851286 complete_pp = _complete_expression
12861287
1288+ def do_assem (self , arg ):
1289+ """assem [on | off]
1290+ Toggle/Set assembly mode
1291+ """
1292+ if not arg :
1293+ self .assem_mode = not self .assem_mode
1294+ elif arg == "on" :
1295+ self .assem_mode = True
1296+ elif arg == "off" :
1297+ self .assem_mode = False
1298+ else :
1299+ self .message ("usage: assem [on | off]" )
1300+
12871301 def do_list (self , arg ):
12881302 """l(ist) [first [,last] | .]
12891303
@@ -1333,7 +1347,8 @@ def do_list(self, arg):
13331347 try :
13341348 lines = linecache .getlines (filename , self .curframe .f_globals )
13351349 self ._print_lines (lines [first - 1 :last ], first , breaklist ,
1336- self .curframe )
1350+ self .curframe ,
1351+ dis .get_instructions (self .curframe .f_code ))
13371352 self .lineno = min (last , len (lines ))
13381353 if len (lines ) < last :
13391354 self .message ('[EOF]' )
@@ -1352,7 +1367,8 @@ def do_longlist(self, arg):
13521367 except OSError as err :
13531368 self .error (err )
13541369 return
1355- self ._print_lines (lines , lineno , breaklist , self .curframe )
1370+ self ._print_lines (lines , lineno , breaklist , self .curframe ,
1371+ dis .get_instructions (self .curframe .f_code ))
13561372 do_ll = do_longlist
13571373
13581374 def do_source (self , arg ):
@@ -1372,13 +1388,15 @@ def do_source(self, arg):
13721388
13731389 complete_source = _complete_expression
13741390
1375- def _print_lines (self , lines , start , breaks = (), frame = None ):
1391+ def _print_lines (self , lines , start , breaks = (), frame = None , instructions = None ):
13761392 """Print a range of lines."""
13771393 if frame :
13781394 current_lineno = frame .f_lineno
13791395 exc_lineno = self .tb_lineno .get (frame , - 1 )
13801396 else :
13811397 current_lineno = exc_lineno = - 1
1398+ if self .assem_mode and instructions :
1399+ inst = next (instructions )
13821400 for lineno , line in enumerate (lines , start ):
13831401 s = str (lineno ).rjust (3 )
13841402 if len (s ) < 4 :
@@ -1392,6 +1410,20 @@ def _print_lines(self, lines, start, breaks=(), frame=None):
13921410 elif lineno == exc_lineno :
13931411 s += '>>'
13941412 self .message (s + '\t ' + line .rstrip ())
1413+ if self .assem_mode and instructions :
1414+ while True :
1415+ if inst .positions .lineno == lineno :
1416+ current_inst = frame and frame .f_lasti == inst .offset
1417+ disassem = inst ._disassemble (lineno_width = None ,
1418+ mark_as_current = current_inst )
1419+ self .message (f" { disassem } )
1420+ elif inst .positions .lineno is not None and inst .positions .lineno > lineno :
1421+ break
1422+ try :
1423+ inst = next (instructions )
1424+ except StopIteration :
1425+ break
1426+
13951427
13961428 def do_whatis (self , arg ):
13971429 """whatis arg
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