PHDR_TP_PEN_DOWN
touched = PHDR_TP_PEN_DOWN; /* we start with "touched" state */
if ((phdr & PHDR_TP_PEN_DOWN) == touched)
touched = phdr & PHDR_TP_PEN_DOWN;
if ((phdr & PHDR_TP_PEN_DOWN) == 0) {
if ((phdr & PHDR_TP_PEN_DOWN) != 0) {
if ((phdr & PHDR_TP_PEN_DOWN) != 0) {