blob: 26bc4278271cd9bb4a9393884a92f6c699005ebd [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#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#include "single.h"
8
9int
10fmuls(void *frD, void *frA, void *frB)
11{
12 FP_DECL_D(A);
13 FP_DECL_D(B);
14 FP_DECL_D(R);
15 int ret = 0;
16
17#ifdef DEBUG
18 printk("%s: %p %p %p\n", __FUNCTION__, frD, frA, frB);
19#endif
20
21 __FP_UNPACK_D(A, frA);
22 __FP_UNPACK_D(B, frB);
23
24#ifdef DEBUG
25 printk("A: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
26 A_s, A_f1, A_f0, A_e, A_c, A_f1, A_f0, A_e + 1023);
27 printk("B: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
28 B_s, B_f1, B_f0, B_e, B_c, B_f1, B_f0, B_e + 1023);
29#endif
30
31 if ((A_c == FP_CLS_INF && B_c == FP_CLS_ZERO) ||
32 (A_c == FP_CLS_ZERO && B_c == FP_CLS_INF))
33 ret |= EFLAG_VXIMZ;
34
35 FP_MUL_D(R, A, B);
36
37#ifdef DEBUG
38 printk("D: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
39 R_s, R_f1, R_f0, R_e, R_c, R_f1, R_f0, R_e + 1023);
40#endif
41
42 return (ret | __FP_PACK_DS(frD, R));
43}