[isabelle-dev] binary arithmetic optimization

Florian Haftmann florian.haftmann at informatik.tu-muenchen.de
Wed Feb 13 09:56:23 CET 2008

Dear Brian,

> Today I modified a copy of Isabelle/HOL in this way; everything seems to
> work just fine, and binary arithmetic works faster. However, code
> generation will need a bit more work, and the HOL/Word library will need
> some non-trivial modifications.

The issue with code generation is not that complex as it seems to be;
essentially, three functions have to be adapted in


All three are parametrized over the constants which encode numerals;
these parameters have to be adjusted (and also their interpretation in
implode_numeral).  What remains is to asjust "setup {*
add_pretty_numeral ...*}" occurences in HOL theories (AFAIR,
Library/Code_Index.thy, Library/Code_Integer.thy,

Hope this helps,
-------------- next part --------------
A non-text attachment was scrubbed...
Name: florian.haftmann.vcf
Type: text/x-vcard
Size: 654 bytes
Desc: not available
URL: <https://mailman46.in.tum.de/pipermail/isabelle-dev/attachments/20080213/c40f700c/attachment-0002.vcf>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 185 bytes
Desc: OpenPGP digital signature
URL: <https://mailman46.in.tum.de/pipermail/isabelle-dev/attachments/20080213/c40f700c/attachment.sig>

More information about the isabelle-dev mailing list