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On 17.04.2009 5:41 Uhr, Asif Haswarey wrote:
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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have been using the tokenizer “toke”
fcode-utils
version 1.0.2 from:<o:p></o:p></p>
<p class="MsoNormal"><a class="moz-txt-link-freetext" href="http://www.openfirmware.info/FCODE_suite">http://www.openfirmware.info/FCODE_suite</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I found out recently that toke does not support
64-bit
constants.<o:p></o:p></p>
<p class="MsoNormal">It simply truncates the upper 32-bits.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Do we want 64-bit constant support?</p>
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<br>
Dear Äsif,<br>
<br>
welcome back!<br>
<br>
I think 64bit constants won't work on architectures with a 32bit cell
size, so FCode using them will not be platform independent.<br>
<br>
Nevertheless, if that's a feature that helps users of toke, we should
definitely support it. <br>
<br>
Can you give a usage example of 64bit constants? I would assume it's
not BARs as those can be read from PCI config space?<br>
<br>
What's the expected output of the tokenizer? put two 32bit constants on
the stack, shift one by 32bit and OR them?<br>
<br>
To be sure, we could add a command line option for enabling 64bit
constants support and print a warning or an error in case it is not
set. Does that sound reasonable?<br>
<br>
Best regards,<br>
Stefan<br>
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