fix issue #2020

Fixed a bug that the little-endian Microblaze does not work when MBEDTLS_HAVE_ASM is defined. Signed-off-by: Kazuyuki Kimura <[email protected]> Signed-off-by: Dave Rodgman <[email protected]>
Mbed-TLS · Jul 29, 2022 · 90b99bf · 90b99bf
1 parent 5048045
commit 90b99bf
Showing 1 changed file with 12 additions and 2 deletions.
diff --git a/include/mbedtls/bn_mul.h b/include/mbedtls/bn_mul.h
@@ -579,10 +579,20 @@
         "andi  r7,   r6, 0xffff \n\t"   \
         "bsrli r6,   r6, 16     \n\t"
 
-#define MULADDC_CORE                    \
+#if(__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
+#define MULADDC_LHUI                    \
+        "lhui  r9,   r3,   0    \n\t"   \
+        "addi  r3,   r3,   2    \n\t"   \
+        "lhui  r8,   r3,   0    \n\t"
+#else
+#define MULADDC_LHUI                    \
         "lhui  r8,   r3,   0    \n\t"   \
         "addi  r3,   r3,   2    \n\t"   \
-        "lhui  r9,   r3,   0    \n\t"   \
+        "lhui  r9,   r3,   0    \n\t"
+#endif
+
+#define MULADDC_CORE                    \
+        MULADDC_LHUI                    \
         "addi  r3,   r3,   2    \n\t"   \
         "mul   r10,  r9,  r6    \n\t"   \
         "mul   r11,  r8,  r7    \n\t"   \