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Diffstat (limited to 'thirdparty/mbedtls/include/mbedtls/bn_mul.h')
-rw-r--r--thirdparty/mbedtls/include/mbedtls/bn_mul.h44
1 files changed, 30 insertions, 14 deletions
diff --git a/thirdparty/mbedtls/include/mbedtls/bn_mul.h b/thirdparty/mbedtls/include/mbedtls/bn_mul.h
index b587317d95..2f7b72fe4c 100644
--- a/thirdparty/mbedtls/include/mbedtls/bn_mul.h
+++ b/thirdparty/mbedtls/include/mbedtls/bn_mul.h
@@ -170,19 +170,19 @@
#define MULADDC_INIT \
asm( \
- "xorq %%r8, %%r8 \n\t"
+ "xorq %%r8, %%r8\n"
#define MULADDC_CORE \
- "movq (%%rsi), %%rax \n\t" \
- "mulq %%rbx \n\t" \
- "addq $8, %%rsi \n\t" \
- "addq %%rcx, %%rax \n\t" \
- "movq %%r8, %%rcx \n\t" \
- "adcq $0, %%rdx \n\t" \
- "nop \n\t" \
- "addq %%rax, (%%rdi) \n\t" \
- "adcq %%rdx, %%rcx \n\t" \
- "addq $8, %%rdi \n\t"
+ "movq (%%rsi), %%rax\n" \
+ "mulq %%rbx\n" \
+ "addq $8, %%rsi\n" \
+ "addq %%rcx, %%rax\n" \
+ "movq %%r8, %%rcx\n" \
+ "adcq $0, %%rdx\n" \
+ "nop \n" \
+ "addq %%rax, (%%rdi)\n" \
+ "adcq %%rdx, %%rcx\n" \
+ "addq $8, %%rdi\n"
#define MULADDC_STOP \
: "+c" (c), "+D" (d), "+S" (s) \
@@ -565,9 +565,8 @@
#endif /* TriCore */
/*
- * gcc -O0 by default uses r7 for the frame pointer, so it complains about our
- * use of r7 below, unless -fomit-frame-pointer is passed. Unfortunately,
- * passing that option is not easy when building with yotta.
+ * Note, gcc -O0 by default uses r7 for the frame pointer, so it complains about
+ * our use of r7 below, unless -fomit-frame-pointer is passed.
*
* On the other hand, -fomit-frame-pointer is implied by any -Ox options with
* x !=0, which we can detect using __OPTIMIZE__ (which is also defined by
@@ -637,6 +636,23 @@
"r6", "r7", "r8", "r9", "cc" \
);
+#elif defined (__ARM_FEATURE_DSP) && (__ARM_FEATURE_DSP == 1)
+
+#define MULADDC_INIT \
+ asm(
+
+#define MULADDC_CORE \
+ "ldr r0, [%0], #4 \n\t" \
+ "ldr r1, [%1] \n\t" \
+ "umaal r1, %2, %3, r0 \n\t" \
+ "str r1, [%1], #4 \n\t"
+
+#define MULADDC_STOP \
+ : "=r" (s), "=r" (d), "=r" (c) \
+ : "r" (b), "0" (s), "1" (d), "2" (c) \
+ : "r0", "r1", "memory" \
+ );
+
#else
#define MULADDC_INIT \