Bit blit routine, version 1
nisse at lysator.liu.se
Tue Feb 3 15:43:57 CET 2004
Torbjorn Granlund <tg at swox.com> writes:
> Please explain what you mean with bit-blit.
A bitblit operates on a substrings of bitstrings. For example, the
1000 bits starting at bit 17 of some given 100-limb number.
If I understood the code correctly, the only operation so far is
copying, but it could be generalized to n source operands and a
selection of any of the 2^(2^n) possible boolean functions. The
Amiga's blitter hardware used n = 3, and handled rectangular subsets
More information about the gmp-devel