include/compiler/iar.h

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#ifndef COMPILER_IAR_H_INCLUDED
#define COMPILER_IAR_H_INCLUDED

#include <intrinsics.h>

#define __noreturn      __noreturn
#define __used          __root
#define __always_inline _Pragma("inline=forced")

#define barrier()       asm("")

/* These are undocumented, but appear to work */
#define min(a, b)       __min(a, b)
#define max(a, b)       __max(a, b)

/* Atomic operations. These are available as builtins on gcc */
static inline unsigned int __sync_or_and_fetch(unsigned int *addr,
                unsigned int mask)
{
        unsigned int word;

        do {
                __set_status_flag(5);
                barrier();
                word = *addr;
                word |= mask;
        } while (!__store_conditional(addr, word));

        barrier();

        return word;
}

static inline unsigned int __sync_and_and_fetch(unsigned int *addr,
                unsigned int mask)
{
        unsigned int word;

        do {
                __set_status_flag(5);
                barrier();
                word = *addr;
                word &= mask;
        } while (!__store_conditional(addr, word));

        barrier();

        return word;
}

static inline unsigned int __sync_xor_and_fetch(unsigned int *addr,
                unsigned int mask)
{
        unsigned int word;

        do {
                __set_status_flag(5);
                barrier();
                word = *addr;
                word ^= mask;
        } while (!__store_conditional(addr, word));

        barrier();

        return word;
}

static inline unsigned int __sync_fetch_and_or(unsigned int *addr,
                unsigned int mask)
{
        unsigned int word;
        unsigned int old;

        do {
                __set_status_flag(5);
                barrier();
                word = *addr;
                old = word;
                word |= mask;
        } while (!__store_conditional(addr, word));

        barrier();

        return old;
}

static inline unsigned int __sync_fetch_and_and(unsigned int *addr,
                unsigned int mask)
{
        unsigned int word;
        unsigned int old;

        do {
                __set_status_flag(5);
                barrier();
                word = *addr;
                old = word;
                word &= mask;
        } while (!__store_conditional(addr, word));

        barrier();

        return old;
}

#endif /* COMPILER_IAR_H_INCLUDED */

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