| We assume than optimizing compilers will unwind loops at every opportunity. |
| |
| But sometimes they don't. So time-critical code will run faster if we step |
| in and unwind complex loops for the compiler. |
| |
| Once the architecture and ECC/RSA support is decided upon (that is amcl.h |
| and arch.h are settled), then compile and execute the program faster.c like |
| this (using MinGW port of GCC as an example), in the same directory as |
| arch.h and amcl.h |
| |
| gcc -O2 -std=c99 faster.c -o faster.exe |
| faster > t.txt |
| |
| Now extract the code fragments from t.txt and insert them where indicated |
| into big.c |
| |
| Finally make sure that |
| |
| #define UNWOUND |
| |
| appears somewhere in amcl.h |
| |
| Finally build the library as normal, and maybe get a 50% speed-up! |
| If there is no significant improvement, don't use this method! |
| |
