Hardware/compiler details are specified to MIRACL in this header file: mirdef.h . For example:
/* * MIRACL compiler/hardware definitions - mirdef.h * This version suitable for use with most 32-bit * computers * * Copyright (c) 1988-1999 Shamus Software Ltd. */ #define MIRACL_32 #define MR_LITTLE_ENDIAN /* this may need to be changed */ #define mr_utype int /* the underlying type is usually int * * but see mrmuldv.any */ #define mr_unsign32 unsigned long /* 32 bit unsigned type */ #define MR_IBITS 32 /* number of bits in an int */ #define MR_LBITS 32 /* number of bits in a long */ #define MR_FLASH 52 /* delete this definition if integer * * only version of MIRACL required * * Number of bits per double mantissa */ #define MAXBASE ((mr_small)1<<(MIRACL-1)) #define MRBITSINCHAR 8 /* Number of bits in char type */ /* #define MR_NOASM * define this if using C code only * * Note: mr_dltype MUST be defined */ /* #define mr_dltype long long * double-length type */ /* #define MR_STRIPPED_DOWN * define this to minimize size * * of library - all error messages * * lost! USE WITH CARE - see mrcore.c */
This file must be edited if porting to a new hardware environment. Assembly language versions of the time-critical routines in mrmuldv.any may also have to be written, if not already provided, although in most cases the standard C version mrmuldv.ccc can simply be copied to mrmuldv.c .
It is best where possible to use the mirdef.h file that is generated automatically by the interactive config.c program.