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authorLinus Torvalds <torvalds@g5.osdl.org>2006-03-29 11:28:30 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-29 11:28:30 -0800
commit76babde121d2ffef04ca692ce64ef9f8a9866086 (patch)
tree294923bbb4974258d86d223e35eee691abacdfb1 /arch/powerpc/math-emu/fmuls.c
parente71ac6032edf77a1e4a81f3e3b260807e94b37a5 (diff)
parent15e812ad849e142e3dfc984d33c4d8042389f148 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (67 commits) [PATCH] powerpc: Remove oprofile spinlock backtrace code [PATCH] powerpc: Add oprofile calltrace support to all powerpc cpus [PATCH] powerpc: Add oprofile calltrace support [PATCH] for_each_possible_cpu: ppc [PATCH] for_each_possible_cpu: powerpc [PATCH] lock PTE before updating it in 440/BookE page fault handler [PATCH] powerpc: Kill _machine and hard-coded platform numbers ppc: Fix compile error in arch/ppc/lib/strcase.c [PATCH] git-powerpc: WARN was a dumb idea [PATCH] powerpc: a couple of trivial compile warning fixes powerpc: remove OCP references powerpc: Make uImage default build output for MPC8540 ADS powerpc: move math-emu over to arch/powerpc powerpc: use memparse() for mem= command line parsing ppc: fix strncasecmp prototype [PATCH] powerpc: make ISA floppies work again [PATCH] powerpc: Fix some initcall return values [PATCH] powerpc: Workaround for pSeries RTAS bug [PATCH] spufs: fix __init/__exit annotations [PATCH] powerpc: add hvc backend for rtas ...
Diffstat (limited to 'arch/powerpc/math-emu/fmuls.c')
-rw-r--r--arch/powerpc/math-emu/fmuls.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/powerpc/math-emu/fmuls.c b/arch/powerpc/math-emu/fmuls.c
new file mode 100644
index 00000000000..26bc4278271
--- /dev/null
+++ b/arch/powerpc/math-emu/fmuls.c
@@ -0,0 +1,43 @@
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <asm/uaccess.h>
+
+#include "soft-fp.h"
+#include "double.h"
+#include "single.h"
+
+int
+fmuls(void *frD, void *frA, void *frB)
+{
+ FP_DECL_D(A);
+ FP_DECL_D(B);
+ FP_DECL_D(R);
+ int ret = 0;
+
+#ifdef DEBUG
+ printk("%s: %p %p %p\n", __FUNCTION__, frD, frA, frB);
+#endif
+
+ __FP_UNPACK_D(A, frA);
+ __FP_UNPACK_D(B, frB);
+
+#ifdef DEBUG
+ printk("A: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
+ A_s, A_f1, A_f0, A_e, A_c, A_f1, A_f0, A_e + 1023);
+ printk("B: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
+ B_s, B_f1, B_f0, B_e, B_c, B_f1, B_f0, B_e + 1023);
+#endif
+
+ if ((A_c == FP_CLS_INF && B_c == FP_CLS_ZERO) ||
+ (A_c == FP_CLS_ZERO && B_c == FP_CLS_INF))
+ ret |= EFLAG_VXIMZ;
+
+ FP_MUL_D(R, A, B);
+
+#ifdef DEBUG
+ printk("D: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
+ R_s, R_f1, R_f0, R_e, R_c, R_f1, R_f0, R_e + 1023);
+#endif
+
+ return (ret | __FP_PACK_DS(frD, R));
+}