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Annotation of researchv10no/cmd/bcp/CPU.h, revision 1.1

1.1     ! root        1: /* Copyright (c) 1989, 1990 AT&T --- All Rights Reserved.              */
        !             2: /* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T.                */
        !             3: /* The copyright notice does not imply actual or intended publication. */
        !             4: /* AUTHORS:                                            */
        !             5: /*     H. S. Baird - ATT-BL MH - first versions        */
        !             6: /*     T. Thompson - ATT-BL HO - portable versions     */
        !             7: /*     C. Macey - ATT-DSG LZ - portable versions       */
        !             8: 
        !             9: /* Specify the environment:  CPU, OS, graphics, etc.
        !            10:    This is an attempt to maintain a single master source tailorable at compile
        !            11:    time, while encapsulating as many as possible of the required #if's and
        !            12:    #ifdef's in this one file.
        !            13:    OS-dependent #includes are triggered by these prior statements:
        !            14:        #define LIBC_INCL 1             -- strcpy(), etc
        !            15:        #define VALUES_INCL 1           -- math constants (PI etc)
        !            16:        #define FILE_TREE_INCL 1        -- UNIX file-tree walking
        !            17:    */
        !            18: 
        !            19: /* CPUs with some support: */
        !            20: #define VAX 0
        !            21: #define CRAY 1
        !            22: #define SUN 2          /* including SPARC */
        !            23: #define ATT3B 3
        !            24: #define I386 4
        !            25: #define MIPS 5         /* including SGI */
        !            26: 
        !            27: /*** Select CPU here: */
        !            28: #define CPU VAX
        !            29: 
        !            30: 
        !            31: /* Operating systems with some support: */
        !            32: #define V9_OS 1                /* ATT-BL research UNIX, 9th edition */
        !            33: #define SV_OS 2                /* ATT UNIX System V */
        !            34: #define SUN_OS 3       /* Sun OS 4.x */
        !            35: 
        !            36: /*** Select OS here: */
        !            37: #define OS V9_OS
        !            38: 
        !            39: 
        !            40: /* Graphics display environments with some support: */
        !            41: #define NO_GRAPHICS 0  /* defeat all graphics */
        !            42: #define Y_GRAPHICS 1   /* the Y graphics interface (used in 1127 for Metheus) */
        !            43: #define SUN_GRAPHICS 2 /* Tim Thompson's Sun interface */
        !            44: #define X_GRAPHICS 3    /* Mark Tuomenoksa's X interface */
        !            45: 
        !            46: /*** Select graphics environment here: */
        !            47: #define GRAPHICS Y_GRAPHICS
        !            48: 
        !            49: 
        !            50: /* OCR installation directory */
        !            51: #ifndef OCRDIR
        !            52: #define OCRDIR "/usr/ocr"
        !            53: #endif
        !            54: 
        !            55: /*** Miscellaneous arcane options:  best left alone **/
        !            56: 
        !            57: #define FILE_TREE (1)          /* set to zero to defeat UNIX file tree code */
        !            58: 
        !            59: 
        !            60: /*** END OF SELECTIONS ** The rest of this file merely implements their effects */
        !            61: 
        !            62: /* define byte ordering in CPU */
        !            63: 
        !            64: #if CPU == SUN || CPU == MIPS
        !            65: #define BIG_ENDIAN 1
        !            66: #endif
        !            67: 
        !            68: /* deal with compilers that don't like (void *) */
        !            69: 
        !            70: #if CPU == MIPS
        !            71: #define VOID char
        !            72: #else
        !            73: #define VOID void
        !            74: #endif
        !            75: 
        !            76: /* include libc functions defs, if necessary */
        !            77: 
        !            78: #if LIBC_INCL
        !            79: 
        !            80: #if OS == V9_OS || CPU == CRAY
        !            81: #include <libc.h>
        !            82: #else
        !            83: #if OS == SV_OS || OS == SUN_OS || CPU == MIPS
        !            84: #include <string.h>
        !            85: #endif
        !            86: #endif
        !            87: 
        !            88: #endif
        !            89: 
        !            90: /* include values */
        !            91: 
        !            92: #if VALUES_INCL
        !            93: #include <values.h>
        !            94: #endif
        !            95: 
        !            96: /* UNIX file-tree-walk includes */
        !            97: 
        !            98: #if FILE_TREE_INCL
        !            99: 
        !           100: #if CPU==VAX || CPU==CRAY || CPU==MIPS
        !           101: #include <sys/types.h>
        !           102: #include <sys/stat.h>
        !           103: #include <ftw.h>
        !           104: #else
        !           105: #if CPU==SUN || CPU==I386
        !           106: #include <sys/types.h>
        !           107: #include <sys/stat.h>
        !           108: #include "myftw.h"  /* T. Thompson's version */
        !           109: #endif
        !           110: #endif
        !           111: 
        !           112: #endif
        !           113: 
        !           114: #if CPU==SUN||CPU==ATT3B||CPU==MIPS||CPU==I386
        !           115: #define sgn(V) (((V)>0)? 1: (((V)<0)? -1: 0))
        !           116: #endif 
        !           117: 
        !           118: #if CPU==SUN||CPU==ATT3B||CPU==MIPS
        !           119: /* These are all big-endian machines */
        !           120: #define swapshortin(x) (((x)<<8)&0xff00)|(((x)>>8)&0xff)
        !           121: #define swapintin(x) \
        !           122:                ((((x)<<24)&0xff000000)| \
        !           123:                 (((x)<<8) &0x00ff0000)| \
        !           124:                 (((x)>>8) &0x0000ff00)| \
        !           125:                 (((x)>>24)&0x000000ff))
        !           126: /* The order of bytes in an int */
        !           127: #define INDEX0 3
        !           128: #define INDEX1 2
        !           129: #define INDEX2 1
        !           130: #define INDEX3 0
        !           131: /* disable fast trick for picking out a short from an int */
        !           132: #define USESHIFT       /* cf. skewlib.c */
        !           133: #else
        !           134: #define swapshortin(x) (x)
        !           135: #define swapintin(x) (x)
        !           136: #define INDEX0 0
        !           137: #define INDEX1 1
        !           138: #define INDEX2 2
        !           139: #define INDEX3 3
        !           140: #endif
        !           141: 
        !           142: /* global max no. classes -- gradually being made dynamic everywhere */
        !           143: #if CPU==SUN
        !           144: #define MAX_CL 128
        !           145: #else
        !           146: #define MAX_CL 3200    /* adequate for JIS Level 1 */
        !           147: #endif
        !           148: 
        !           149: /* include char types (is this really necessary?) */
        !           150: 
        !           151: #if CTYPE_INCL
        !           152: 
        !           153: #if CPU == SUN
        !           154: #include <string.h>
        !           155: #else
        !           156: #include <ctype.h>
        !           157: #endif
        !           158: 
        !           159: #endif
        !           160: 
        !           161: /* includes for atan2 special configurations */
        !           162: 
        !           163: #if ATAN_INCL
        !           164: 
        !           165: #if CPU == CRAY
        !           166: #define use_fast_atan2 F
        !           167: #include "CRAY.h"
        !           168: #else
        !           169: #define use_fast_atan2 T
        !           170: #endif
        !           171: 
        !           172: #endif
        !           173: 
        !           174: /* regular expression includes (fix to use standard regexp?) */
        !           175: 
        !           176: #if REGEXP_INCL
        !           177: 
        !           178: #if OS == V9_OS
        !           179: #include <regexp.h>
        !           180: #else
        !           181: #include "regexp.h"
        !           182: #endif
        !           183: 
        !           184: #endif
        !           185: 
        !           186: /* Use of the graphics display */
        !           187: 
        !           188: #if CPU != CRAY
        !           189: #define SHOW_GRAPHICS 1
        !           190: #endif
        !           191: 
        !           192: #ifndef PI
        !           193: #define PI 3.14159265358979323846
        !           194: #endif

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