patch-2.2.11 linux/arch/sparc/math-emu/sfp-machine.h

• Lines: 38
• Date: Mon Aug 9 12:04:57 1999
• Orig file: v2.2.10/linux/arch/sparc/math-emu/sfp-machine.h
• Orig date: Wed Mar 10 16:53:36 1999

diff -u --recursive --new-file v2.2.10/linux/arch/sparc/math-emu/sfp-machine.h linux/arch/sparc/math-emu/sfp-machine.h
@@ -91,6 +91,11 @@
 #define _FP_NANFRAC_D		_FP_QNANBIT_D, 0
 #define _FP_NANFRAC_Q           _FP_QNANBIT_Q, 0, 0, 0
 
+/* On some architectures float-to-int conversions return a result
+ * code.  On others (e.g. Sparc) they return 0
+ */
+#define _FTOI_RESULT		0
+
 #define _FP_KEEPNANFRACP 1
 
 /* This macro appears to be called when both X and Y are NaNs, and 
@@ -104,7 +109,25 @@
     _FP_FRAC_COPY_##wc(R,Y);					\
     R##_c = FP_CLS_NAN;						\
   } while (0)
+
+#define _FP_CHOOSENAN_SQRT(fs, wc, R, X)			\
+  do {								\
+    	R##_s = 0;						\
+    	R##_c = FP_CLS_NAN;					\
+    	_FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc);		\
+  } while (0)
+
   
+#define __FP_UNPACK_DENORM(fs, wc, X)				\
+    {								\
+	_FP_I_TYPE _shift;					\
+	_FP_FRAC_CLZ_##wc(_shift, X);				\
+	_shift -= _FP_FRACXBITS_##fs;				\
+	_FP_FRAC_SLL_##wc(X, (_shift+_FP_WORKBITS));		\
+	X##_e -= _FP_EXPBIAS_##fs - 1 + _shift;			\
+	X##_c = FP_CLS_NORMAL;					\
+    }
+
 #define __FP_UNPACK_RAW_1(fs, X, val)				\
   do {								\
     union _FP_UNION_##fs *_flo =				\