board/MAI/bios_emulator/scitech/src/v86bios/awk.scr

/.*\(0x3da.*/||/.*\(0x3ba.*/ { 
        if (v_3da != 1) print "_v_retrace_";
        v_3da = 1;
        next;        
        }
/.*\(0x42.*/||/.*\(0x43.*/ {
        if (v_4x != 1) print "_timer_";
        v_4x = 1;
        next;
}
{
    print;
    v_3da = 0;
    v_4x = 0;
}