Move mpi constant macros to bn_mul.h
Signed-off-by: Janos Follath <janos.follath@arm.com>
diff --git a/include/mbedtls/bn_mul.h b/include/mbedtls/bn_mul.h
index 9615090..4ecd71a 100644
--- a/include/mbedtls/bn_mul.h
+++ b/include/mbedtls/bn_mul.h
@@ -71,6 +71,46 @@
#include "bignum.h"
+
+/*
+ * Conversion macros for embedded constants:
+ * build lists of mbedtls_mpi_uint's from lists of unsigned char's grouped by 8, 4 or 2
+ */
+#if defined(MBEDTLS_HAVE_INT32)
+
+#define BYTES_TO_T_UINT_4( a, b, c, d ) \
+ ( (mbedtls_mpi_uint) (a) << 0 ) | \
+ ( (mbedtls_mpi_uint) (b) << 8 ) | \
+ ( (mbedtls_mpi_uint) (c) << 16 ) | \
+ ( (mbedtls_mpi_uint) (d) << 24 )
+
+#define BYTES_TO_T_UINT_2( a, b ) \
+ BYTES_TO_T_UINT_4( a, b, 0, 0 )
+
+#define BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \
+ BYTES_TO_T_UINT_4( a, b, c, d ), \
+ BYTES_TO_T_UINT_4( e, f, g, h )
+
+#else /* 64-bits */
+
+#define BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \
+ ( (mbedtls_mpi_uint) (a) << 0 ) | \
+ ( (mbedtls_mpi_uint) (b) << 8 ) | \
+ ( (mbedtls_mpi_uint) (c) << 16 ) | \
+ ( (mbedtls_mpi_uint) (d) << 24 ) | \
+ ( (mbedtls_mpi_uint) (e) << 32 ) | \
+ ( (mbedtls_mpi_uint) (f) << 40 ) | \
+ ( (mbedtls_mpi_uint) (g) << 48 ) | \
+ ( (mbedtls_mpi_uint) (h) << 56 )
+
+#define BYTES_TO_T_UINT_4( a, b, c, d ) \
+ BYTES_TO_T_UINT_8( a, b, c, d, 0, 0, 0, 0 )
+
+#define BYTES_TO_T_UINT_2( a, b ) \
+ BYTES_TO_T_UINT_8( a, b, 0, 0, 0, 0, 0, 0 )
+
+#endif /* bits in mbedtls_mpi_uint */
+
#if defined(MBEDTLS_HAVE_ASM)
#ifndef asm