made MP_31BIT working

Author: czurnieden

demo/test.c

@@ -180,6 +180,12 @@ static int test_mp_hash(void)
       0xabae35c7872c107d,
       0xfec74888bcef5fcd,
       0x27ba96030abceda5
+#elif (MP_DIGIT_BIT == 31)
+      0xaf63bd4c8601b7df,
+      0xec1be1c4749a7b86,
+      0x138ac13639116f2e,
+      0xdd317b32ac9dd90f,
+      0x6f87eaac03140738
 #else
       0xaf63bd4c8601b7df,
       0x7e868fbf541faf44,

tommath.h

@@ -55,7 +55,7 @@ extern "C" {
 #if defined(MP_16BIT)
 typedef uint16_t             mp_digit;
 #   define MP_DIGIT_BIT 15
-#elif defined(MP_64BIT)
+#elif ((defined (MP_64BIT)) && !(defined(MP_31BIT)) )
 typedef uint64_t mp_digit;
 #   define MP_DIGIT_BIT 60
 #else

tommath_private.h

@@ -136,7 +136,7 @@ extern void MP_FREE(void *mem, size_t size);
 #if defined(MP_16BIT)
 typedef uint32_t mp_word;
 #define MP_WORD_SIZE  4
-#elif defined(MP_64BIT)
+#elif ((defined (MP_64BIT)) && !(defined(MP_31BIT)) )
 typedef unsigned long mp_word __attribute__((mode(TI)));
 #define MP_WORD_SIZE  16
 #else
@@ -229,9 +229,6 @@ MP_PRIVATE mp_err s_mp_radix_size_overestimate(const mp_int *a, const int radix,
 MP_PRIVATE mp_err s_mp_fp_log(const mp_int *a, mp_int *c) MP_WUR;
 MP_PRIVATE mp_err s_mp_fp_log_d(const mp_int *a, mp_word *c) MP_WUR;
 
-
-
-
 #define MP_RADIX_MAP_REVERSE_SIZE 80u
 extern MP_PRIVATE const char s_mp_radix_map[];
 extern MP_PRIVATE const uint8_t s_mp_radix_map_reverse[];