LSR
CRTCW(LSR,
CRTC2W(LSR,
CRTCW(LSR,
CRTC2W(LSR,
CRTC2W(LSR,
return (ReadReg8(LSR) & (LSR_THRE | LSR_TSRE)) == (LSR_THRE | LSR_TSRE);
for (i = 0; i < bytesLeft && (ReadReg8(LSR) & LSR_DR); i++) {
lsr = ReadReg8(LSR);