DOS_SERVICE EQU 021h DOS_WRITE_CHARACTER EQU 002h DOS_GET_DEFAULT_DRIVE EQU 019h DOS_SET_DTA EQU 01Ah DOS_GET_FILE_SIZE EQU 023h ; Obsolete, use DOS_MOVE_FILE_POINTER instead DOS_GET_DTA EQU 02Fh DOS_CREATE_DIRECTORY EQU 039h DOS_REMOVE_DIRECTORY EQU 03Ah DOS_CREATE_FILE EQU 03Ch DOS_OPEN_FILE EQU 03Dh DOS_CLOSE_FILE EQU 03Eh DOS_READ_FROM_HANDLE EQU 03Fh DOS_WRITE_TO_HANDLE EQU 040h DOS_DELETE_FILE EQU 041h DOS_GET_CURRENT_DIRECTORY EQU 047h DOS_ALLOCATE_MEMORY EQU 048h DOS_FREE_ALLOCATED_MEMORY EQU 049h DOS_SET_MEMORY_BLOCK_SIZE EQU 04Ah DOS_TERMINATE_EXE EQU 04Ch DOS_FIND_FIRST_FILE EQU 04Eh DOS_FIND_NEXT_FILE EQU 04Fh DOS_MOVE_FILE_POINTER_BEGIN EQU 04200h DOS_MOVE_FILE_POINTER_CURR EQU 04201h DOS_MOVE_FILE_POINTER_END EQU 04202h DOS_GET_DEVICE_PARAMETERS EQU 0440Dh DOS_GET_MEDIA_ID EQU 0440Dh DOS_SENSE_MEDIA_TYPE EQU 0440Dh DOS_GET_FILE_ATTRIBUTES EQU 04300h DOS_SET_FILE_ATTRIBUTES EQU 04301h DOS_GET_FILE_DATE_AND_TIME EQU 05700h DOS_SET_FILE_DATE_AND_TIME EQU 05701h DOS_GET_ALLOCATION_STRATEGY EQU 05800h DOS_SET_ALLOCATION_STRATEGY EQU 05801h DOS_DEFAULT_DRIVE EQU 000h DOS_FILE_READ_ONLY EQU 000h DOS_FILE_WRITE_ONLY EQU 001h DOS_FILE_READ_WRITE EQU 002h DOS_FIND_FILES EQU 00000h DOS_FIND_DIRECTORIES EQU 00010h DOS_FILE_NOT_FOUND EQU 00002h DOS_PATH_NOT_FOUND EQU 00003h DOS_ACCESS_DENIED EQU 00005h DOS_DIRECTORY_IS_CURRENT_DIR EQU 00010h DOS_DRIVE_NOT_READY EQU 00005h DOS_DRIVE_NOT_AVAILABLE EQU 0000Fh DOS_STRATEGY_MEM_FIRST_FIT EQU 00000h DOS_STRATEGY_MEM_LAST_FIT EQU 00001h DOS_STRATEGY_MEM_BEST_FIT EQU 00002h DOS_STRATEGY_MEM_CONV EQU 00000h DOS_STRATEGY_MEM_UMB_CONV EQU 00040h DOS_STRATEGY_MEM_UMB EQU 00080h DOS_GET_DEVICE_PARAMETERS_CX EQU 00860h DOS_GET_MEDIA_ID_CX EQU 00866h DOS_SENSE_MEDIA_TYPE_CX EQU 00868h