Fix zero_ext documentation

Message ID 1460553972-3838-1-git-send-email-antoine.tremblay@ericsson.com
State New, archived
Headers

Commit Message

Antoine Tremblay April 13, 2016, 1:26 p.m. UTC
  This patch fixes the documentation for the zero_ext bytecode description.

It removes parts that seemed like a copy/paste from ext, since zero_ext
zeros the bits to the left.

gdb/doc/ChangeLog:

	* agentexpr.texi (byte): Fix zero_ext description.
---
 gdb/doc/agentexpr.texi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
  

Comments

Eli Zaretskii April 13, 2016, 2:48 p.m. UTC | #1
> From: Antoine Tremblay <antoine.tremblay@ericsson.com>
> CC: Antoine Tremblay <antoine.tremblay@ericsson.com>
> Date: Wed, 13 Apr 2016 09:26:12 -0400
> 
> This patch fixes the documentation for the zero_ext bytecode description.
> 
> It removes parts that seemed like a copy/paste from ext, since zero_ext
> zeros the bits to the left.

OK, thanks.
  
Antoine Tremblay April 13, 2016, 4:38 p.m. UTC | #2
Eli Zaretskii writes:

>> From: Antoine Tremblay <antoine.tremblay@ericsson.com>
>> CC: Antoine Tremblay <antoine.tremblay@ericsson.com>
>> Date: Wed, 13 Apr 2016 09:26:12 -0400
>> 
>> This patch fixes the documentation for the zero_ext bytecode description.
>> 
>> It removes parts that seemed like a copy/paste from ext, since zero_ext
>> zeros the bits to the left.
>
> OK, thanks.

Pushed, thanks.
  

Patch

diff --git a/gdb/doc/agentexpr.texi b/gdb/doc/agentexpr.texi
index 731234d..ade7638 100644
--- a/gdb/doc/agentexpr.texi
+++ b/gdb/doc/agentexpr.texi
@@ -353,8 +353,7 @@  byte unsigned integer following the @code{ext} bytecode.
 
 @item @code{zero_ext} (0x2a) @var{n}: @var{a} @result{} @var{a}, zero-extended from @var{n} bits
 Pop an unsigned value from the stack; zero all but the bottom @var{n}
-bits.  This means that all bits to the left of bit @var{n-1} (where the
-least significant bit is bit 0) are set to the value of bit @var{n-1}.
+bits.
 
 The number of source bits to preserve, @var{n}, is encoded as a single
 byte unsigned integer following the @code{zero_ext} bytecode.