Mirror/betaflight
1
0
Fork 0
mirror of https://github.com/betaflight/betaflight.git synced 2025-07-14 20:10:18 +03:00
Code Issues Wiki Activity

Revert "Revert "Betaflight led strip resubmit""

Browse source 
This reverts commit 63c7ae18ff.
This commit is contained in:
borisbstyle 2016-07-18 09:19:13 +02:00
parent 0ae5d9734e
commit ddf1f80b48
14 changed files with 1136 additions and 830 deletions
Download patch file Download diff file Expand all files Collapse all files

11
src/main/common/utils.h
View file

@ -71,4 +71,15 @@ http://resnet.uoregon.edu/~gurney_j/jmpc/bitwise.html
static inline int16_t cmp16(uint16_t a, uint16_t b) { return a-b; }
static inline int32_t cmp32(uint32_t a, uint32_t b) { return a-b; }
// using memcpy_fn will force memcpy function call, instead of inlining it. In most cases function call takes fewer instructions
// than inlined version (inlining is cheaper for very small moves < 8 bytes / 2 store instructions)
#ifdef UNIT_TEST
// Call memcpy when building unittest - this is easier that asm symbol name mangling (symbols start with _underscore on win32)
#include <string.h>
static inline void memcpy_fn ( void * destination, const void * source, size_t num ) { memcpy(destination, source, num); };
#else
void * memcpy_fn ( void * destination, const void * source, size_t num ) asm("memcpy");
#endif
#endif