John Ripley questions

John Ripley answers

• Redundant Assembly Instructions?
• Is the memcpy() function reentrant?
• Is the leading structure in MP3 file a real frame?
• Signed vs Unsigned operations in C
• ARM unaligned memory access workaround
• Are the default constructor and destructor ever inline?
• AND faster than integer modulo operation?
• Estimating process energy usage on PCs (x86)
• Understanding CPU cache and cache line
• Why ARM NEON not faster than plain C++?