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authorKumar Gala <galak@kernel.crashing.org>2006-03-28 00:43:27 -0500
committerKumar Gala <galak@kernel.crashing.org>2006-03-28 00:43:27 -0500
commit5cd272085bbc905532869f3e1fd18a7100496b56 (patch)
tree2c29f8a713e90fe55864502ed962c656014bca71 /arch/powerpc/math-emu/fmul.c
parentff2e6d7e27cf1f757ab0d97e1a9e46de47152a0e (diff)
powerpc: move math-emu over to arch/powerpc
Towards the goal of having arch/powerpc not build anything over in arch/ppc move math-emu over. Also, killed some references to arch/ppc/ in the arch/powerpc Makefile which should belong in drivers/ when the particular sub-arch's move over to arch/powerpc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/math-emu/fmul.c')
-rw-r--r--arch/powerpc/math-emu/fmul.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/powerpc/math-emu/fmul.c b/arch/powerpc/math-emu/fmul.c
new file mode 100644
index 000000000000..66c7e79aae2e
--- /dev/null
+++ b/arch/powerpc/math-emu/fmul.c
@@ -0,0 +1,42 @@
1#include <linux/types.h>
2#include <linux/errno.h>
3#include <asm/uaccess.h>
4
5#include "soft-fp.h"
6#include "double.h"
7
8int
9fmul(void *frD, void *frA, void *frB)
10{
11 FP_DECL_D(A);
12 FP_DECL_D(B);
13 FP_DECL_D(R);
14 int ret = 0;
15
16#ifdef DEBUG
17 printk("%s: %p %p %p\n", __FUNCTION__, frD, frA, frB);
18#endif
19
20 __FP_UNPACK_D(A, frA);
21 __FP_UNPACK_D(B, frB);
22
23#ifdef DEBUG
24 printk("A: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
25 A_s, A_f1, A_f0, A_e, A_c, A_f1, A_f0, A_e + 1023);
26 printk("B: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
27 B_s, B_f1, B_f0, B_e, B_c, B_f1, B_f0, B_e + 1023);
28#endif
29
30 if ((A_c == FP_CLS_INF && B_c == FP_CLS_ZERO) ||
31 (A_c == FP_CLS_ZERO && B_c == FP_CLS_INF))
32 ret |= EFLAG_VXIMZ;
33
34 FP_MUL_D(R, A, B);
35
36#ifdef DEBUG
37 printk("D: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
38 R_s, R_f1, R_f0, R_e, R_c, R_f1, R_f0, R_e + 1023);
39#endif
40
41 return (ret | __FP_PACK_D(frD, R));
42}