sparcv8leon3: add hw-accelerated sqrt implementation

phoenix-rtos · Jan 9, 2024 · ed74176 · ed74176
1 parent 9d138b9
commit ed74176
Showing 1 changed file with 25 additions and 0 deletions.
diff --git a/include/arch/sparcv8leon3/arch.h b/include/arch/sparcv8leon3/arch.h
@@ -29,6 +29,31 @@
 #define __STRCPY
 #define __STRNCPY
 
+#if (!_SOFT_FLOAT)
+#define __IEEE754_SQRT
+
+static inline double __ieee754_sqrt(double x)
+{
+	/* clang-format off */
+	__asm__ volatile ("fsqrtd %0, %0" : "+f"(x));
+	/* clang-format on */
+
+	return x;
+}
+
+
+#define __IEEE754_SQRTF
+static inline float __ieee754_sqrtf(float x)
+{
+	/* clang-format off */
+	__asm__ volatile ("fsqrts %0, %0" : "+f"(x));
+	/* clang-format on */
+
+	return x;
+}
+
+#endif
+
 #ifdef NOMMU
 #define _PAGE_SIZE 0x200
 #else