1f0fa5e154
only for exceptions. While adding this to exception_save and exception_restore, it was hard to find a good place to put the instructions. The code sequence was sufficiently arbitrarily ordered that the density was low (roughly 67%). No explicit bundling was used. Thus, I rewrote the functions to optimize for density (close to 80% now), and added explicit bundles and nop instructions. The immediate operand on the nop instruction has been incremented with each instance, to make debugging a bit easier when looking at recurring patterns. Redundant stops have been removed as much as possible. Future optimizations can focus more on performance. A well-placed lfetch can make all the difference here! Also, the FRAME_Fxx defines in frame.h were mostly bogus. FRAME_F10 to FRAME_F15 were copied from FRAME_F9 and still had the same index. We don't use them yet, so nothing was broken. |
||
|---|---|---|
| .. | ||
| acpica | ||
| compile | ||
| conf | ||
| ia32 | ||
| ia64 | ||
| include | ||
| isa | ||
| pci | ||