from nx_crypto_ec.c:144
static NX_CRYPTO_CONST HN_UBASE _nx_crypto_ec_secp256r1_p[] =
{
HN_ULONG_TO_UBASE(0xFFFFFFFF), HN_ULONG_TO_UBASE(0xFFFFFFFF),
HN_ULONG_TO_UBASE(0xFFFFFFFF), HN_ULONG_TO_UBASE(0x00000000),
HN_ULONG_TO_UBASE(0x00000000), HN_ULONG_TO_UBASE(0x00000000),
HN_ULONG_TO_UBASE(0x00000001), HN_ULONG_TO_UBASE(0xFFFFFFFF)
};