H. Peter Anvin
51997d3d44
Introduce likely/unlikely macros, use them in saa.c
...
Introduce the likely() and unlikely() macros, as used in Linux.
They are compiler-dependent hints that a particular boolean expression
is likely to be true or false, respectively.
Currently only implemented for gcc.
2008-06-10 09:35:26 -07:00
H. Peter Anvin
8cc5aa7829
SAA: optimize all power-of-two lengths
...
We can actually use the shift optimization whenever blk_len ==
SAA_BLKLEN, which will be true for all powers of two.
2008-06-10 09:31:31 -07:00
H. Peter Anvin
1cff81e356
SAA: optimize seeks when used on a byte array
...
In practice, we only ever use the seeking functions on byte arrays
(elem_len == 1). Optimize for that case, to avoid a general divmod
operation.
2008-06-10 09:29:20 -07:00
H. Peter Anvin
1803dedae8
Move all the SAA code out of nasmlib
...
Move all the SAA code out of nasmlib; it's not used by anything than
nasm itself. Cleaning out the kitchen sink known as nasmlib is a good
thing, too.
2008-06-09 17:32:43 -07:00
