get_scr
get_scr(ice)));
val = get_scr(ice) & SCR_MUTE;
old = get_scr(ice) & SCR_MUTE;
set_scr(ice, (get_scr(ice) & ~SCR_MUTE) | new);
val = get_scr(ice) & (SCR_AIN12_SEL1 | SCR_AIN12_SEL0);
old = get_scr(ice);
val = get_scr(ice) & SCR_PHP_V;
old = new = get_scr(ice);