xen: cleancache shim to Xen Transcendent Memory
[linux-2.6/next.git] / arch / powerpc / math-emu / fmul.c
blob2c1929779892b6e29f228467c0625a46cff830ee
1 #include <linux/types.h>
2 #include <linux/errno.h>
3 #include <asm/uaccess.h>
5 #include <asm/sfp-machine.h>
6 #include <math-emu/soft-fp.h>
7 #include <math-emu/double.h>
9 int
10 fmul(void *frD, void *frA, void *frB)
12 FP_DECL_D(A);
13 FP_DECL_D(B);
14 FP_DECL_D(R);
15 FP_DECL_EX;
17 #ifdef DEBUG
18 printk("%s: %p %p %p\n", __func__, frD, frA, frB);
19 #endif
21 FP_UNPACK_DP(A, frA);
22 FP_UNPACK_DP(B, frB);
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
31 if ((A_c == FP_CLS_INF && B_c == FP_CLS_ZERO) ||
32 (A_c == FP_CLS_ZERO && B_c == FP_CLS_INF))
33 FP_SET_EXCEPTION(EFLAG_VXIMZ);
35 FP_MUL_D(R, A, B);
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
42 __FP_PACK_D(frD, R);
44 return FP_CUR_EXCEPTIONS;