OSX/libsecurity_cryptkit/lib/giantPort_PPC_Gnu.h

   1 /*
   2  * giantPort_PPC_Gnu.h - giant definitions, PPC/GNU version.
   3  */
   4
   5 #ifndef _CK_NSGIANT_PORT_PPC_GNU_H_
   6 #define _CK_NSGIANT_PORT_PPC_GNU_H_
   7
   8 #include "feeDebug.h"
   9 #include "platform.h"
  10 #include "giantIntegers.h"
  11
  12 #ifdef __cplusplus
  13 extern "C" {
  14 #endif
  15
  16 /* define this true to disable this module and use generic C versions instead */
  17 #define PPC_GIANT_PORT_INLINE   0
  18
  19 #if     PPC_GIANT_PORT_INLINE
  20
  21 #include "giantPort_Generic.h"
  22
  23 #else   // PPC_GIANT_PORT_INLINE
  24
  25 /*
  26  * Multiple-precision arithmetic routines/macros implemented in
  27  * giantPort_PPC_Gnu.s
  28  */
  29
  30 /*
  31  * Add two digits, return sum. Carry bit returned as an out parameter.
  32  */
  33 extern giantDigit giantAddDigits(
  34         giantDigit dig1,
  35         giantDigit dig2,
  36         giantDigit *carry);                     /* RETURNED, 0 or 1 */
  37
  38 /*
  39  * Add a single digit value to a double digit accumulator in place.
  40  * Carry out of the MSD of the accumulator is not handled.
  41  */
  42 void giantAddDouble(
  43         giantDigit *accLow,                     /* IN/OUT */
  44         giantDigit *accHigh,                    /* IN/OUT */
  45         giantDigit val);
  46
  47
  48 /*
  49  * Subtract a - b, return difference. Borrow bit returned as an out parameter.
  50  */
  51 giantDigit giantSubDigits(
  52         giantDigit a,
  53         giantDigit b,
  54         giantDigit *borrow);                    /* RETURNED, 0 or 1 */
  55
  56
  57 /*
  58  * Multiply two digits, return two digits.
  59  */
  60 void giantMulDigits(
  61         giantDigit      dig1,
  62         giantDigit      dig2,
  63         giantDigit      *lowProduct,            /* RETURNED, low digit */
  64         giantDigit      *hiProduct);            /* RETURNED, high digit */
  65
  66 /*
  67  * Multiply a vector of giantDigits, candVector, by a single giantDigit,
  68  * plierDigit, adding results into prodVector. Returns m.s. digit from
  69  * final multiply; only candLength digits of *prodVector will be written.
  70  */
  71 giantDigit VectorMultiply(
  72         giantDigit plierDigit,
  73         giantDigit *candVector,
  74         unsigned candLength,
  75         giantDigit *prodVector);
  76
  77 #ifdef __cplusplus
  78 }
  79 #endif
  80
  81 #endif  /* !PPC_GIANT_PORT_INLINE */
  82
  83 #endif  /*_CK_NSGIANT_PORT_PPC_GNU_H_*/