2 Dec
2010
2 Dec
'10
2:32 p.m.
On Thu, Dec 2, 2010 at 5:20 PM, Fred Cisin <cisin at xenosoft.com> wrote:
Some optimizers will even remove NOPs! ?requiring you
to use the ALIGN
keyword instead of NOPs if word boundaries are going to matter.
Ooh... never been bitten by that one, but it sounds nasty. I haven't
done any assembly on Intel processors past the 286 (and it wasn't
mixed-mode), and the only other architectures I've worked with at that
level that care about even-address-alignment (PDP-11 and MC68K)
shouldn't hurl if some entity pulls out a 16-bit NOP, but, boy, I'd be
steamed if I had to manually align some code only to find the compiler
tried to "help me out".
Sounds like a need for a #DWIM pragma. ;-)
-ethan