simplify some code, add comments

ABS simplification from Iceman1001
2016-03-19 00:09:58 -04:00
parent 29ada8fc08
commit cf194819cc
6 changed files with 47 additions and 81 deletions
@@ -24,6 +24,10 @@ typedef unsigned char byte_t;
 #ifndef MAX
 # define MAX(a, b) (((a) > (b)) ? (a) : (b))
 #endif
+#ifndef ABS
+# define ABS(a) ( ((a)<0) ? -(a) : (a) )
+#endif
+

 #define RAMFUNC __attribute((long_call, section(".ramfunc")))