Labels:text | screenshot | parallel | number | font | line | diagram | receipt OCR: B. 14 - Memory Map S M S M T F T T a 0 a S T T 0 Location(s ) Size Type Meaning 0x00000502 LONG RAM scr_dump: The routine pointed to by this value is called each time the user pressed ALT-HELP. 0x00000506 LONG RAM pru_Isto: This vector is called to check the status of the 'PRN:' output device by the Prtbl k( ) routine. 0x0000050A LONG RAM prv_Ist: This vector is called to output a byte to the 'PRN:' device by the Prtbl k() routine .. 0x0000050E LONG RAM pry_auxo: This vector is called to check the status of the 'AUX:' output device by the Prtbl k( ) routine. 0x00000512 LONG RAM prv_aux: This vector is called to output a byte to the 'AUX:' device by the Prtbl k( ) routine.