INT 4B - TI Professional PCIBM PC - PARALLEL PORTIBM PC Portable (uses same BIOS as XT) - OUTPUT CHARACTER AH = 00h DL = printer number (00h) AL = character to print Return: AH = printer status (see #03216) Note: on the TI Pro, the BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. only supports DL=00h; MS-DOS versions for the TI hook INT 4B and handle requests for DL<>00h SeeAlso: AH=01h,AH=02h,INT 17/AH=00h SeeAlso: INT 40"TI Professional",INT 48/AH=00h"TI Professional" SeeAlso: INT 49/AH=01h"TI",INT 4C"TI Professional",INT 4D/AH=00h Bitfields for TI Professional PCIBM PC printer status: Bit(s) Description (Table 03216) 0 timeout (function 00h only) 3-1 unused 4 busy 5 paper out 6 on-line (selected) 7 fault