summaryrefslogtreecommitdiff
path: root/arch/sparc/math-emu/sfp-util_64.h
diff options
context:
space:
mode:
authorSam Ravnborg <sam@ravnborg.org>2008-11-17 07:07:11 +0300
committerDavid S. Miller <davem@davemloft.net>2008-12-04 20:16:56 +0300
commit5115f39c2034cb80a050d996a2a6343bce189628 (patch)
treef106dcf237f9f7de49d4ad5d5f3b81968f663e46 /arch/sparc/math-emu/sfp-util_64.h
parent774434bf33bdc876c2818eba34e416fe1fc7a746 (diff)
downloadlinux-5115f39c2034cb80a050d996a2a6343bce189628.tar.xz
sparc64: unify math-emu
Move relavent files to sparc/math-emu and adjust path/include accordingly. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/math-emu/sfp-util_64.h')
-rw-r--r--arch/sparc/math-emu/sfp-util_64.h120
1 files changed, 120 insertions, 0 deletions
diff --git a/arch/sparc/math-emu/sfp-util_64.h b/arch/sparc/math-emu/sfp-util_64.h
new file mode 100644
index 000000000000..425d3cf01af4
--- /dev/null
+++ b/arch/sparc/math-emu/sfp-util_64.h
@@ -0,0 +1,120 @@
+/*
+ * arch/sparc64/math-emu/sfp-util.h
+ *
+ * Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz)
+ * Copyright (C) 1999 David S. Miller (davem@redhat.com)
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("addcc %4,%5,%1\n\t" \
+ "add %2,%3,%0\n\t" \
+ "bcs,a,pn %%xcc, 1f\n\t" \
+ "add %0, 1, %0\n" \
+ "1:" \
+ : "=r" ((UDItype)(sh)), \
+ "=&r" ((UDItype)(sl)) \
+ : "r" ((UDItype)(ah)), \
+ "r" ((UDItype)(bh)), \
+ "r" ((UDItype)(al)), \
+ "r" ((UDItype)(bl)) \
+ : "cc")
+
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("subcc %4,%5,%1\n\t" \
+ "sub %2,%3,%0\n\t" \
+ "bcs,a,pn %%xcc, 1f\n\t" \
+ "sub %0, 1, %0\n" \
+ "1:" \
+ : "=r" ((UDItype)(sh)), \
+ "=&r" ((UDItype)(sl)) \
+ : "r" ((UDItype)(ah)), \
+ "r" ((UDItype)(bh)), \
+ "r" ((UDItype)(al)), \
+ "r" ((UDItype)(bl)) \
+ : "cc")
+
+#define umul_ppmm(wh, wl, u, v) \
+ do { \
+ UDItype tmp1, tmp2, tmp3, tmp4; \
+ __asm__ __volatile__ ( \
+ "srl %7,0,%3\n\t" \
+ "mulx %3,%6,%1\n\t" \
+ "srlx %6,32,%2\n\t" \
+ "mulx %2,%3,%4\n\t" \
+ "sllx %4,32,%5\n\t" \
+ "srl %6,0,%3\n\t" \
+ "sub %1,%5,%5\n\t" \
+ "srlx %5,32,%5\n\t" \
+ "addcc %4,%5,%4\n\t" \
+ "srlx %7,32,%5\n\t" \
+ "mulx %3,%5,%3\n\t" \
+ "mulx %2,%5,%5\n\t" \
+ "sethi %%hi(0x80000000),%2\n\t" \
+ "addcc %4,%3,%4\n\t" \
+ "srlx %4,32,%4\n\t" \
+ "add %2,%2,%2\n\t" \
+ "movcc %%xcc,%%g0,%2\n\t" \
+ "addcc %5,%4,%5\n\t" \
+ "sllx %3,32,%3\n\t" \
+ "add %1,%3,%1\n\t" \
+ "add %5,%2,%0" \
+ : "=r" ((UDItype)(wh)), \
+ "=&r" ((UDItype)(wl)), \
+ "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
+ : "r" ((UDItype)(u)), \
+ "r" ((UDItype)(v)) \
+ : "cc"); \
+ } while (0)
+
+#define udiv_qrnnd(q, r, n1, n0, d) \
+ do { \
+ UWtype __d1, __d0, __q1, __q0, __r1, __r0, __m; \
+ __d1 = (d >> 32); \
+ __d0 = (USItype)d; \
+ \
+ __r1 = (n1) % __d1; \
+ __q1 = (n1) / __d1; \
+ __m = (UWtype) __q1 * __d0; \
+ __r1 = (__r1 << 32) | (n0 >> 32); \
+ if (__r1 < __m) \
+ { \
+ __q1--, __r1 += (d); \
+ if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */ \
+ if (__r1 < __m) \
+ __q1--, __r1 += (d); \
+ } \
+ __r1 -= __m; \
+ \
+ __r0 = __r1 % __d1; \
+ __q0 = __r1 / __d1; \
+ __m = (UWtype) __q0 * __d0; \
+ __r0 = (__r0 << 32) | ((USItype)n0); \
+ if (__r0 < __m) \
+ { \
+ __q0--, __r0 += (d); \
+ if (__r0 >= (d)) \
+ if (__r0 < __m) \
+ __q0--, __r0 += (d); \
+ } \
+ __r0 -= __m; \
+ \
+ (q) = (UWtype) (__q1 << 32) | __q0; \
+ (r) = __r0; \
+ } while (0)
+
+#define UDIV_NEEDS_NORMALIZATION 1
+
+#define abort() \
+ return 0
+
+#ifdef __BIG_ENDIAN
+#define __BYTE_ORDER __BIG_ENDIAN
+#else
+#define __BYTE_ORDER __LITTLE_ENDIAN
+#endif