Apple-2-SW
/
fdraw
mirror of https://github.com/fadden/fdraw.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Update personal-notes.md

This commit is contained in:
Andy McFadden 2015-08-22 23:21:18 -07:00
parent e4a103a049
commit 44da8732c6
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
docs/personal-notes.md
View File

@ -184,10 +184,11 @@ I had forgotten how much fun this stuff is. Working in ARM assembly
language on Android offered similar challenges, but you're never entirely
sure exactly how your code will perform on the wide range of CPU
architectures (affecting instruction interleave, cache size and
replacement policy, etc.), you have to guess at cache misses and the
success rate of data prefetching, and it's difficult to measure results when
there's multiple threads running and interrupts firing. On the Apple II
you can count every cycle, and know exactly what will happen when.
replacement policy, branch prediction, etc.), you have to guess at cache
misses and the success rate of data prefetching, and it's difficult to
measure results when there's multiple threads running and interrupts firing.
On the Apple II you can count every cycle, and know exactly what will
happen when.
I don't expect that anyone will find the code useful, but that wasn't
really the point.