Defs: util

Macros

synco instruction (in a form compatible with sh3eb-elf)

#define synco (()) __asm__ volatile (".word 0x00ab":::"memory")

min(), max() (without double evaluation)

#define min ((a, b)) ({      \
  GAUTOTYPE _a = (a);    \
  GAUTOTYPE _b = (b);    \
  _a < _b ? _a : _b;    \
})

sgn() (without double evaluation)

#define sgn ((s)) ({      \
  GAUTOTYPE _s = (s);    \
  _s < 0 ? -1 :      \
  _s > 0 ? +1 :      \
  0;        \
})

swap() - exchange two variables of the same type

#define swap ((a, b)) ({      \
  GAUTOTYPE _tmp = (a);    \
  (a) = (b);      \
  (b) = _tmp;      \
})

#define GAUTOTYPE __auto_type
#define max ((a, b)) ({      \
  GAUTOTYPE _a = (a);    \
  GAUTOTYPE _b = (b);    \
  _a > _b ? _a : _b;    \
})