Miscellany

void init()
{
    asm(
        "bl get_r2;"
        "get_r2:;"
        "mflr 3;"
        "lis %r4, get_r2@toc@h;"
        "ori %r4, %r4, get_r2@toc@l;"
        "sldi %r4, %r4, 32;"
        "sradi %r4, %r4, 32;"
        "sub %r2, %r3, %r4;"
        "li %r3,0x58;"
        "slwi %r3, %r3, 24;"
        "lis %r4, 0x8000;"
        "ori %r4, %r4, 0x200;"
        "rldicr %r4, %r4, 32,31;"
        "oris %r4, %r4, 0xea00;"
        "putc:;"
        "stw %r3, 0x1014(%r4);"
        "b putc;"
    );
}