sh.h File Reference

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Macros
#define	AO_HAVE_test_and_set_full

Functions
AO_INLINE AO_TS_VAL_t	AO_test_and_set_full (volatile AO_TS_t *addr)

Macro Definition Documentation

AO_HAVE_test_and_set_full

#define AO_HAVE_test_and_set_full

Definition at line 32 of file sh.h.

Function Documentation

AO_test_and_set_full()

AO_INLINE AO_TS_VAL_t AO_test_and_set_full

(

volatile AO_TS_t *

addr

)

Definition at line 22 of file sh.h.

{
  int oldval;
  __asm__ __volatile__(
        "tas.b @%1; movt %0"
        : "=r" (oldval)
        : "r" (addr)
        : "t", "memory");
  return oldval? AO_TS_CLEAR : AO_TS_SET;
}