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lightning-sunbird  0.9+nobinonly
mpi_amd64.c
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00001 /* ***** BEGIN LICENSE BLOCK *****
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00014  * The Original Code is the Solaris software cryptographic token.
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00037 
00038 #ifndef MPI_AMD64
00039 #error This file only works on AMD64 platforms.
00040 #endif
00041 
00042 #include <mpi-priv.h>
00043 
00044 /*
00045  * MPI glue
00046  *
00047  */
00048 
00049 /* Presently, this is only used by the Montgomery arithmetic code. */
00050 /* c += a * b */
00051 void MPI_ASM_DECL s_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len,
00052                                        mp_digit b, mp_digit *c)
00053 {
00054   mp_digit w;
00055   mp_digit d;
00056 
00057   d = s_mpv_mul_add_vec64(c, a, a_len, b);
00058   c += a_len;
00059   while (d) {
00060     w = c[0] + d;
00061     d = (w < c[0] || w < d);
00062     *c++ = w;
00063   }
00064 }
00065