Archipelago » qemu

#elif defined(__arm__)

static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr)

{

    register unsigned long _beg __asm ("a1");

    register unsigned long _end __asm ("a2");

    register unsigned long _flg __asm ("a3");

    /* we could use a ldr pc, [pc, #-4] kind of branch and avoid the flush */

    *(uint32_t *)jmp_addr |= ((addr - (jmp_addr + 8)) >> 2) & 0xffffff;

    /* flush icache */

    _beg = jmp_addr;

    _end = jmp_addr + 4;

    _flg = 0;

    __asm __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg));

}

#endif

static inline void flush_icache_range(unsigned long start, unsigned long stop)

{

    register unsigned long _beg __asm ("a1") = start;

    register unsigned long _end __asm ("a2") = stop;

    register unsigned long _flg __asm ("a3") = 0;

    __asm __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg));

}