I would still suggest you look at the tag/payload ordering.  If it's flipped, 
you'll see this error.

Try using the describe() function in jsc in addition to using print().  That 
will do a dump of the internal structure of the JSValue.  If it's flipped, then 
you'll know where to look.

-F


On Aug 2, 2012, at 12:00 AM, 石梦军 <talking1...@126.com> wrote:

> My platform use the  little-endian.  
>  
> --
> BGs/Felix Shi
> 
> At 2012-08-02 14:51:48,"Filip Pizlo" <fpi...@apple.com> wrote:
> What is the endianness of your platform?  I think that the big endian code in 
> JavaScriptCore may have rotted.
> 
> This smells to me like the tag and payload getting flipped around, which 
> might happen if there are parts of the code that are assuming little endian 
> and your hardware is big endian.
> 
> -F
> 
> 
> 
> On Aug 1, 2012, at 11:47 PM, talking1...@gmail.com wrote:
> 
>> Hi,
>> 
>> I have test with follow case, and cann't get correct reslut. I find that 
>> Floating-point operations  is error, and I don't know where shold start to 
>> fixed this question. so if anybody can give some information for which 
>> function i should to check. 
>> 
>> 
>> Any help explaining this would be much appreciated!
>> 
>> 
>> My Compiler: MSVS
>> 
>> ARCH:                SH4
>> 
>> Feature:             JIT
>> 
>> 
>> 
>> 
>> 
>> Javascript code of test case
>> 
>> function jitTestCode() {
>> 
>>   var tmp = -1*0;
>> 
>>   debug("tmp:" + tmp); 
>> 
>>   var result = tmp + 1;
>> 
>>   debug("The result should be 1,result:" + result);   //print
>> 
>>   var item1 =  result - 1;
>> 
>>   debug("The item1 should be 0,item1:" + item1); //print
>> 
>>   var item2 =  result - 2;
>> 
>>   debug("The item2 should be -1,item2:" + item2); //print
>> 
>> }
>> 
>>  
>> 
>> And the log information are:
>> 
>> [CONSOLE-DEBUG]Message is :'tmp:0'
>> 
>> [CONSOLE-DEBUG]Message is :'The result should be 1,result:0.0078125'
>> 
>> [CONSOLE-DEBUG]Message is :'The item1 should be 0,item1:0'
>> 
>> [CONSOLE-DEBUG]Message is :'The item2 should be -1,item2:-0.0078125'
>> 
>> 
>> --
>> BGs/Felix Shi
>> 
>> 
>> 
>> 
>> _______________________________________________
>> webkit-dev mailing list
>> webkit-dev@lists.webkit.org
>> http://lists.webkit.org/mailman/listinfo/webkit-dev
> 
> 
> 

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