stdio.inc

VRTX 商用嵌入式实时操作系统

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;		Copyright (c) 1993 READY SYSTEMS CORPORATION.
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;	All rights reserved. READY SYSTEMS' source code is an unpublished
;	work and the use of a copyright notice does not imply otherwise.
;	This source code contains confidential, trade secret material of
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;	reverse engineering or in any way altering the source code is
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;	Module Name:		%M%
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;	Identification:		%Z% %I% %M%
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;	Date:			%G%  %U%
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;

; FILE -- standard buffered I/O structure

FILE		STRUC 
FIO_FLAGS     DW   1   ; $00 miscellaneous flags (see below)
FIO_CHANNEL   DW   1   ; $02 IOX channel number or zero if VRTX I/O
FIO_BUFFER    DB   6 DUP(?)   ; $04 pointer to start of buffer
FIO_NEXT      DW   1   ; $0A offset to next character in buffer (input)
FIO_SIZE      DW   1   ; $0C total size of buffer in bytes
FIO_COUNT     DW   1   ; $0E number of characters in buffer
FILE		ENDS

FIOB          EQU   16   ; $0E total size in bytes

FIO_READ      EQU    1   ; reading is allowed
FIO_WRITE     EQU    2	 ; writing is allowed
FIO_ASCII     EQU    4	 ; expand \n to \r\n, control-Z is EOF
FIO_LINEBUF   EQU    8	 ; line buffered, so flush after \n
FIO_EOF       EQU   16	 ; end-of-file has occurred
FIO_UNBUF     EQU   32	 ; stream is not buffered
FIO_MYBUF     EQU   64	 ; user-allocated buffer
FIO_MYFILE    EQU  128	 ; statically allocated FILE structure
FIO_FLUSH     EQU  256	 ; buffer contains data to be flushed
FIO_ERROR     EQU  512	 ; error has occurred