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Annotation of coherent/b/bin/c/h/i8086/cc0mch.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * h/i8086/cc0mch.h
        !             3:  * Definitions for the SMALL and LARGE model Intel iAPX-86 C compiler.
        !             4:  * mch.h has set either IEEE or DECVAX to 1.
        !             5:  * Both formats use 8 byte double constants with the sign bit in the same place.
        !             6:  *
        !             7:  * Some definitions for the portable floating point input code.
        !             8:  * Used by the multiprecision integer package.
        !             9:  */
        !            10: 
        !            11: #define        NBIG    8                       /* Loop limit, etc */
        !            12: typedef        unsigned char   BIG[NBIG];      /* Unsigned, holds 64 bits */
        !            13: #define        t5ne(n) ((n[0]&0370)!=0)        /* Check if top 5 bits clear */
        !            14: #define        cbit(n) (((n)>>8)&0377)         /* Get 'carry' for addition */
        !            15: #define        MSBBIG  0200                    /* Top bit of each thing */
        !            16: 
        !            17: #if    IEEE
        !            18: #define        IROUND  6                       /* IEEE format */
        !            19: #define        BROUND  010                     /* 52 bits */
        !            20: #define        EXPBIAS 1023                    /* binary exponent bias */
        !            21: #define        EXPMAX  2046                    /* maximum biased binary exponent */
        !            22: #else
        !            23: #define        IROUND  6                       /* DEC VAX-11 format */
        !            24: #define        BROUND  01                      /* 55 bits */
        !            25: #define        EXPBIAS 129                     /* binary exponent bias */
        !            26: #define        EXPMAX  255                     /* maximum biased binary exponent */
        !            27: #endif
        !            28: 
        !            29: /* This macro determines which bit field base types are promoted. */
        !            30: #define doalign(t)     0
        !            31: 
        !            32: /* Byte alignment for all field types. */
        !            33: #define        faligntype(t)   1
        !            34: 
        !            35: /* No pragmas recognized. */
        !            36: #define        pragma(p)       0
        !            37: 
        !            38: /* end of h/i8086/cc0mch.h */

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