int putchar(int c)
{
tgt_putchar(c);
return 0;
}

void tgt_putchar(c)
{
    asm(
        ".set noreorder\n\t"
        "lui $25, 0xbfb0\n\t"
        "jr $31\n\t"
        "sb %0,-0x10($25)\n\t"
        ".set reorder\n\t"
        :
        :"r"(c)
        :"$25");
}