121 lines
4.9 KiB
C
121 lines
4.9 KiB
C
/* This file sets configuration parameters for the MINIX kernel, FS, and MM.
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* It is divided up into two main sections. The first section contains
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* user-settable parameters. In the second section, various internal system
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* parameters are set based on the user-settable parameters.
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*/
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/*===========================================================================*
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* This section contains user-settable parameters *
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*===========================================================================*/
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/* MACHINE must be set to one of the machine types list below. */
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#define MACHINE ATARI /* Must be one of the names listed below */
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#define IBM_PC 1 /* any 8088 or 80x86-based system */
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#define SUN_4 40 /* any SUN SPARC-based system */
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#define ATARI 60 /* ATARI ST (68000) */
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#define AMIGA 61 /* Commodore Amiga (68000) */
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#define MACINTOSH 62 /* Apple Macintosh (68000) */
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/* If ROBUST is set to 1, writes of i-node, directory, and indirect blocks
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* from the cache happen as soon as the blocks are modified. This gives a more
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* robust, but slower, file system. If it is set to 0, these blocks are not
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* given any special treatment, which may cause problems if the system crashes.
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*/
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#define ROBUST 0 /* 0 for speed, 1 for robustness */
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/* If HAVE_SCATTERED_IO is set to 1, scattered I/O is enabled. */
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/* DEBUG - 1.4b will always use this. */
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#define HAVE_SCATTERED_IO 1
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/* The buffer cache should be made as large as you can afford. */
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#if INTEL_32BITS
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#define NR_BUFS 320 /* # blocks in the buffer cache */
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#define NR_BUF_HASH 512 /* size of buf hash table; MUST BE POWER OF 2*/
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#else
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#define NR_BUFS 30 /* # blocks in the buffer cache */
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#define NR_BUF_HASH 32 /* size of buf hash table; MUST BE POWER OF 2*/
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#endif
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/* Defines for kernel configuration. */
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#define AUTO_BIOS 0 /* xt_wini.c - use Western's autoconfig BIOS */
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#define C_RS232_INT_HANDLERS 0 /* rs232.c - use slower C int handlers */
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#define DEFAULT_CLASS 0 /* floppy.c - 3 or 5 to get only that size */
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#define LINEWRAP 0 /* console.c - wrap lines at column 80 */
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#define NO_HANDSHAKE 1 /* rs232.c - don't use CTS/RTS handshaking */
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/* These configuration defines control debugging and unfinished code. */
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#define FLOPPY_TIMING 0 /* floppy.c - for fine tuning floppy driver */
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#define MONITOR 0 /* xt_wini.c - monitor loop in w_wait_int */
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#define RECORD_FLOPPY_SKEW 0 /* floppy.c - for deciding nr_sectors */
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/* These configuration defines control worthless code. */
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#define SPARE_VIDEO_MEMORY 0 /* misc.c - use memory from any 2nd vid card */
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#define SPLIMITS 0 /* mpx*.x - set stack limits (never checked) */
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#if (MACHINE == ATARI)
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/* this define says whether the keyboard generates VT100 or IBM_PC escapes */
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#define KEYBOARD VT100 /* either VT100 or IBM_PC */
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#define VT100 100
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/* IBM_PC is already defined above. Use IBM_PC to be Minix ST 1.1 compatible */
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/* the next define says whether you have SUPRA or ATARI extended partitioning */
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/* hook for future extensions; not yet implemented; not yet used */
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#define PARTITIONING SUPRA /* either SUPRA or ATARI */
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#define SUPRA 1
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/* ATARI is already defined */
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/* define the number of hard disk drives on your system */
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/* (assuming 2 drives/controller) */
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#define NR_DRIVES 1 /* typically 0 or 1 */
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#endif
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/*===========================================================================*
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* There are no user-settable parameters after this line *
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*===========================================================================*/
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/* Set the CHIP type based on the machine selected. The symbol CHIP is actually
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* indicative of more than just the CPU. For example, machines for which
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* CHIP == INTEL are expected to have 8259A interrrupt controllers and the
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* other properties of IBM PC/XT/AT/386 types machines in general. */
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#define INTEL 1 /* CHIP type for PC, XT, AT, 386 and clones */
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#define M68000 2 /* CHIP type for Atari, Amiga, Macintosh */
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#define SPARC 3 /* CHIP type for SUN-4 (e.g. SPARCstation) */
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#if MACHINE == IBM_PC
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#define CHIP INTEL
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#endif
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#if (MACHINE == ATARI) | (MACHINE == AMIGA) | (MACHINE == MACINTOSH)
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#define CHIP M68000
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#endif
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#if (MACHINE == SUN_4)
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#define CHIP SPARC
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#endif
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#if MACHINE == ATARI
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#define ASKDEV 1 /* ask for boot device */
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#define FASTLOAD 1 /* use multiple block transfers to init ram */
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#endif
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/* The file buf.h uses MAYBE_WRITE_IMMED. */
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#if ROBUST
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#define MAYBE_WRITE_IMMED WRITE_IMMED /* slower but perhaps safer */
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#else
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#define MAYBE_WRITE_IMMED 0 /* faster */
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#endif
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#ifndef MACHINE
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#error "In <minix/config.h> please define MACHINE"
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#endif
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#ifndef CHIP
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#error "In <minix/config.h> please define MACHINE to have a legal value"
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#endif
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#if (MACHINE == 0)
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#error "MACHINE has incorrect value (0)"
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#endif
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