char __fseq (float, float);
char __fsqt (float, float);
-#endif
+#if defined(SDCC_FLOAT_LIB) && defined(SDCC_mcs51) && !defined(SDCC_USE_XSTACK) && !defined(_SDCC_NO_ASM_LIB_FUNCS)
+#define FLOAT_ASM_MCS51
+// This adds extra code for proper round-off, in
+// an attempt to match the results from gcc.
+#define FLOAT_FULL_ACCURACY
+// This adds about 66 bytes to the code size and
+// significantly speeds up shift operations more
+// than 8 bits (common when subtracting numbers
+// of siginifantly different magnitude and scaling
+// to fixed point)
+#define FLOAT_SHIFT_SPEEDUP
+
+#define sign_a psw.1
+#define sign_b psw.5
+#define exp_a dpl
+#define exp_b dph
+#endif // using mcs51 assembly
+
+
+#endif // __SDC51_FLOAT_H