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CPM OPERATING SYSTEMS/CPM 68K/1.0X SOURCES/v102a/clib/cpm.h
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254
CPM OPERATING SYSTEMS/CPM 68K/1.0X SOURCES/v102a/clib/cpm.h
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/***************************************************************************
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*
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* O S I F . H
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* -----------
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* Copyright 1982,1983 by Digital Research Inc. All rights reserved.
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*
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* Edits:
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* 17-Jan-84 whf Moved to 68K
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* 5-Jan-84 whf Moved MAXCCBS to channel.c
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* 29-Dec-83 whf Add F_TRUNC for tclose()
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* 12-Dec-83 whf Change from "CPM.H" to "OSIF.H"
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* 9-Dec-83 whf Handle PCDOS differences
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* 3-Nov-83 whf Add multi-sector i/o
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* 19-Oct-83 whf Add QUEUE handling info
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* 6-Oct-83 whf Redefine reserved area in fcb for parsefn() return
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* 25-June-83 sw Add user number to file "fd" structure.
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*
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* This file contains O.S. specific definitions for the
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* DRI CLEAR/C Run Time Library.
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* This file is intended only for inclusion with those functions
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* dealing directly with the O.S. interface, as well as any function
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* which has hardware dependent code (byte storage order, for
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* instance).
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*
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****************************************************************************/
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/*
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* "machine.h": to determine what kind of machine you want to run on.
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*/
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#define MC68000 1 /* Motorola 68000 */
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#define CPM68K 1 /* CP/M 68000 ver 2.2 */
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#define CPM 1 /* CP/M version 2.2 */
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#define ALCYON 1 /* Alcyon C Compiler */
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/*#ifdef UNdefined*/ /* Unused DEFINEs */
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/*** Processor ***/
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#define I8086 0 /* Intel 8086/8088 */
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#define VAX 0 /* DEC VAX */
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#define PDP11 0 /* DEC PDP-11 */
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#define Z8000 0 /* Zilog Z8000 */
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/*** Operating System ***/
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#define PCDOS 0 /* IBM PC DOS */
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#define CCPM 0 /* Concurrent (multi-tasking) */
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#define CPM3 0 /* CP/M version 3.x (Concurrent & Plus) */
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#define CPM4 0 /* CP/M version 4.x (Portable Concurrent) */
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#define UNIX 0 /* UNIX */
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#define VMS 0 /* DEC VMS */
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/*** Compiler ***/
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#define DRC 0 /* Digital Research C Compiler */
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/*#endif */ /**********************/
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/****************************************************************************
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* CP/M FCB definition
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****************************************************************************/
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#if CPM /****************************/
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struct fcbtab /****************************/
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{ /* */
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BYTE drive; /* Disk drive field [0] */
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BYTE fname[8]; /* File name [1-8] */
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BYTE ftype[3]; /* File type [9-11] */
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BYTE extent; /* Current extent number[12]*/
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BYTE s1,s2; /* "system reserved" [13-14]*/
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BYTE reccnt; /* Record counter [15] */
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BYTE fpasswd[8]; /* Parsefn passwd area[16-23]*/
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BYTE fuser; /* Parsefn user# area [24] */
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BYTE resvd[7]; /* More "system reserved" */
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LONG record; /* Note -- we overlap [32-36]*/
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/* current record field to */
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/* make this useful. */
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}; /****************************/
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#endif /****************************/
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/****************************************************************************
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* PC-DOS FCB definition
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****************************************************************************/
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#if PCDOS /****************************/
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struct fcbtab { /****************************/
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BYTE drive; /* Disk drive field [0] */
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BYTE fname[8]; /* File name [1-8] */
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BYTE ftype[3]; /* File type [9-11] */
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WORD fcb_curblk; /* Curr 128 byte blk [12-13]*/
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WORD fcb_lrecsiz; /* Logical record size[14-15]*/
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LONG fcb_filsiz; /* Num bytes in file [16-19]*/
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WORD fcb_date; /* Last updated [20-21] */
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BYTE fcb_resvd[10]; /* System reserved [22-31] */
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BYTE fcb_currec; /* Rel Rec# within curblk[32]*/
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LONG record; /* Rel Rec# from bgn file */
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/* [33-36] depends on lrecsiz*/
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}; /****************************/
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#endif /****************************/
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/* */
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#define SECSIZ 128 /* size of CP/M sector */
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/* to obtain nsecs on err */
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/****************************/
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/****************************************************************************/
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/* */
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/* Channel Control Block (CCB) */
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/* */
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/* One CCB is allocated (statically) for each of the 16 possible open */
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/* files under C (including STDIN, STDOUT, STDERR). Permanent data */
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/* regarding the channel is kept here. */
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/* */
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/* */
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/****************************************************************************/
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struct ccb /************************************/
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{ /* */
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WORD flags; /*sw Flags byte */
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BYTE user; /*sw User # */
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BYTE chan; /* Channel number being used */
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LONG offset; /* File offset word (bytes) */
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LONG sector; /* Sector currently in buffer */
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LONG hiwater; /* High water mark */
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struct fcbtab fcb; /* File FCB (may have TTY info)*/
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BYTE buffer[SECSIZ]; /* Read/write buffer */
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}; /************************************/
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extern struct ccb _fds[]; /* */ /* Declare storage */
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#define FD struct ccb /* FD Type definition */
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#define NULLFD ((FD *)0) /* NULLPTRs for FD */
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/************************************/
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/* Flags word bit definitions */
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/************************************/
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#define OPENED 0x01 /* Channel is OPEN */
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#define ISTTY 0x02 /* Channel open to TTT */
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#define ISLPT 0x04 /* Channel open to LPT */
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#define ISREAD 0x08 /* Channel open readonly */
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#define ISASCII 0x10 /* ASCII file attached */
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#define ATEOF 0x20 /* End of file encountered */
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#define DIRTY 0x40 /* Buffer needs writing */
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#define ISSPTTY 0x80 /* Special tty info */
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#define ISAUX 0x100 /*sw Auxiliary device */
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#define ISQUE 0x0200 /*whf Queue device */
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/************************************/
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#define READ 0 /* Read mode parameter for open */
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#define WRITE 1 /* Write mode */
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/* CCB manipulation macros *************************************/
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#define _getccb(i) (&_fds[i]) /* Get CCB addr */
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/****************************************************************************/
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/* */
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/* O S I F F u n c t i o n D e f i n i t i o n s */
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/* ------------------------------------------------- */
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/* */
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/* Following are OSIF function definitions used by the C runtime */
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/* library. */
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/* */
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/****************************************************************************/
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/****************************/
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#if CPM68K /* */
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#define __OSIF(fn,arg) __BDOS((fn),(LONG)(arg)) /* CPM68K does it this way */
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#else /* */
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#define __OSIF(fn,arg) __BDOS((fn),(arg)) /* DRC does it this way */
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#endif /* */
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#if CPM /****************************/
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#define EXIT 0 /* Exit to BDOS */
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#define CONIN 1 /* direct echoing con input */
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#define CONOUT 2 /* Direct console output */
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#define LSTOUT 5 /* Direct list device output*/
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#define CONIO 6 /* Direct console I/O */
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#define C_WRITESTR 9 /* Console string output */
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#define CONBUF 10 /* Read console buffer */
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#define S_BDOSVER 12 /* Get System BDOS Ver Num */
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#define OPEN 15 /* OPEN a disk file */
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#define CLOSE 16 /* Close a disk file */
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#define SEARCHF 17 /* Search for first */
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#define SEARCHN 18 /* Search for next */
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#define DELETE 19 /* Delete a disk file */
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#define CREATE 22 /* Create a disk file */
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#define F_RENAME 23 /* Rename a disk file */
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#define SETDMA 26 /* Set DMA address */
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#define USER 32 /*sw Get / set user number */
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#define B_READ 33 /* Read Random record */
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#define B_WRITE 34 /* Write Random record */
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#define FILSIZ 35 /* Compute File Size */
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#define F_MULTISEC 44 /* Set Multi-Sector Count */
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#define P_CHAIN 47 /* Program Chain */
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#define SETVEC 61 /* Set exception vector */
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#define N_NETSTAT 68 /* Get Network Status */
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#define F_TRUNC 99 /* Truncate File function */
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#define S_OSVER 163 /* Get OS Version Number */
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#endif /****************************/
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#if PCDOS /****************************/
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#define EXIT 0 /* Exit to BDOS */
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#define CONIN 1 /* direct echoing con input */
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#define CONOUT 2 /* Direct console output */
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#define LSTOUT 5 /* Direct list device output*/
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#define CONIO 6 /* Direct console I/O */
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#define C_WRITESTR 9 /* Console string output */
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#define CONBUF 10 /* Read console buffer */
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#define OPEN 15 /* OPEN a disk file */
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#define CLOSE 16 /* Close a disk file */
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#define SEARCHF 17 /* Search for first */
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#define SEARCHN 18 /* Search for next */
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#define DELETE 19 /* Delete a disk file */
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#define CREATE 22 /* Create a disk file */
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#define F_RENAME 23 /* Rename a disk file */
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#define SETDMA 26 /* Set DMA address */
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#define B_READ 33 /* Read Random record */
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#define B_WRITE 34 /* Write Random record */
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#define FILSIZ 35 /* Compute File Size */
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#endif /****************************/
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/****************************************************************************/
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/* Other CP/M definitions */
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/****************************************************************************/
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#define TERM "CON:" /* Console file name */
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#define LIST "LST:" /* List device file name */
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#define EOFCHAR 0x1a /* End of file character-^Z */
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/****************************/
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/****************************************************************************/
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/* Hardware dependencies */
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/****************************************************************************/
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/****************************/
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#if MC68000 | Z8000 /* 68K or Z8000 */
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#define HILO 1 /* used when bytes stored */
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#else /* */
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#define HILO 0 /* */
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#endif /* */
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/* */
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#if HILO /* Hi/Lo storage used in */
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struct long_struct{ /* 68K */
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BYTE lbhihi; /* Use this for accessing */
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BYTE lbhilo; /* ordered bytes in 32 bit*/
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BYTE lblohi; /* LONG qtys. */
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BYTE lblolo; /* */
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}; /* */
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struct word_struct{ /* Use this for accessing */
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WORD lwhi; /* ordered words in 32 bit*/
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WORD lwlo; /* LONG qtys. */
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}; /* */
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#else /****************************/
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struct long_struct{ /* Lo/Hi storage use on */
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BYTE lblolo; /* PDP-11, VAX, 8086,... */
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BYTE lblohi; /* */
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BYTE lbhilo; /* */
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BYTE lbhihi; /* */
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}; /* */
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struct word_struct{ /* */
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WORD lwlo; /* */
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WORD lwhi; /* */
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}; /* */
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#endif /****************************/
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/*************************** end of osif.h **********************************/
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