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From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: Richard Henderson <rth@twiddle.net>
Cc: "Philippe Mathieu-Daudé" <f4bug@amsat.org>,
	qemu-devel@nongnu.org,
	"Peter Crosthwaite" <crosthwaite.peter@gmail.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Eduardo Habkost" <ehabkost@redhat.com>,
	"Cleber Rosa" <crosa@redhat.com>
Subject: [Qemu-devel] [PATCH] decodetree: Force Python to print unsigned values
Date: Sun, 11 Nov 2018 01:02:59 +0100	[thread overview]
Message-ID: <20181111000259.7665-1-f4bug@amsat.org> (raw)

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 <f4bug@amsat.org>
---
 scripts/decodetree.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/decodetree.py b/scripts/decodetree.py
index 5dea15e7a5..a24017d33e 100755
--- a/scripts/decodetree.py
+++ b/scripts/decodetree.py
@@ -895,10 +895,10 @@ class Tree:
                 return '0x{0:x}'.format(b >> sh)
         else:
             def str_switch(b):
-                return 'insn & 0x{0:08x}'.format(b)
+                return 'insn & 0x{0:08x}'.format(b & 0xffffffff)
 
             def str_case(b):
-                return '0x{0:08x}'.format(b)
+                return '0x{0:08x}'.format(b & 0xffffffff)
 
         output(ind, 'switch (', str_switch(self.thismask), ') {\n')
         for b, s in sorted(self.subs):
-- 
2.19.1

             reply	other threads:[~2018-11-11  0:03 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-11  0:02 Philippe Mathieu-Daudé [this message]
2018-11-11 11:27 ` [Qemu-devel] [PATCH] decodetree: Force Python to print unsigned values Richard Henderson
2018-11-11 23:06   ` Philippe Mathieu-Daudé
2018-11-12  8:10     ` Richard Henderson

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