patch-2.3.30 linux/arch/alpha/math-emu/sfp-util.h

• Lines: 41
• Date: Thu Dec 2 15:28:54 1999
• Orig file: v2.3.29/linux/arch/alpha/math-emu/sfp-util.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.29/linux/arch/alpha/math-emu/sfp-util.h linux/arch/alpha/math-emu/sfp-util.h
@@ -0,0 +1,40 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <asm/fpu.h>
+
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+  ((sl) = (al) + (bl), (sh) = (ah) + (bh) + ((sl) < (al)))
+
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+  ((sl) = (al) - (bl), (sh) = (ah) - (bh) - ((al) < (bl)))
+
+#define umul_ppmm(wh, wl, u, v)			\
+  __asm__ ("mulq %2,%3,%1; umulh %2,%3,%0"	\
+	   : "=r" ((UDItype)(wh)),		\
+	     "=&r" ((UDItype)(wl))		\
+	   : "r" ((UDItype)(u)),		\
+	     "r" ((UDItype)(v)))
+
+extern void udiv128(unsigned long, unsigned long,
+		    unsigned long, unsigned long,
+		    unsigned long *,
+		    unsigned long *);
+
+#define udiv_qrnnd(q, r, n1, n0, d)		\
+  do {						\
+    unsigned long xr, xi;			\
+    udiv128((n0), (n1), 0, (d), &xr, &xi);	\
+    (q) = xr; 					\
+    (r) = xi;					\
+  } while (0)
+
+#define UDIV_NEEDS_NORMALIZATION 1  
+
+#define abort()			goto bad_insn
+
+#ifndef __LITTLE_ENDIAN
+#define __LITTLE_ENDIAN -1
+#endif
+#define __BYTE_ORDER __LITTLE_ENDIAN