[Qemu-devel] [RFC PATCH 05/11] decodetree: Force Python to print unsigned values

[Philippe Mathieu-Daudé]

Python internal representation is signed, so unsigned values
bigger than 31-bit are interpreted as signed (and printed with
a '-' signed).
Mask out to force unsigned values.

Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
---
TODO: display error encountered:

   case 0x-1:
       ....
---
 scripts/decodetree.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/decodetree.py b/scripts/decodetree.py
index 5dea15e7a5..08aa52d544 100755
--- a/scripts/decodetree.py
+++ b/scripts/decodetree.py
@@ -900,12 +900,12 @@ class Tree:
             def str_case(b):
                 return '0x{0:08x}'.format(b)
 
-        output(ind, 'switch (', str_switch(self.thismask), ') {\n')
+        output(ind, 'switch (', str_switch(self.thismask & insnmask), ') {\n')
         for b, s in sorted(self.subs):
             assert (self.thismask & ~s.fixedmask) == 0
             innermask = outermask | self.thismask
             innerbits = outerbits | b
-            output(ind, 'case ', str_case(b), ':\n')
+            output(ind, 'case ', str_case(b & insnmask), ':\n')
             output(ind, '    /* ',
                    str_match_bits(innerbits, innermask), ' */\n')
             s.output_code(i + 4, extracted, innerbits, innermask)
-- 
2.17.2