* add p cc
[mascara-docs.git] / i386 / linux / linux-2.3.21 / arch / ppc / math-emu / fdivs.c
blobee9c5e62942c81a0ba549498e538d36d7b017527
1 /* $Id: fdivs.c,v 1.1 1999/08/23 18:59:35 cort Exp $
2 */
4 #include <linux/types.h>
5 #include <linux/errno.h>
6 #include <asm/uaccess.h>
8 #include "soft-fp.h"
9 #include "double.h"
10 #include "single.h"
12 int
13 fdivs(void *frD, void *frA, void *frB)
15 FP_DECL_D(A);
16 FP_DECL_D(B);
17 FP_DECL_D(R);
18 int ret = 0;
20 #ifdef DEBUG
21 printk("%s: %p %p %p\n", __FUNCTION__, frD, frA, frB);
22 #endif
24 __FP_UNPACK_D(A, frA);
25 __FP_UNPACK_D(B, frB);
27 #ifdef DEBUG
28 printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
29 printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
30 #endif
32 if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) {
33 ret |= EFLAG_VXZDZ;
34 #ifdef DEBUG
35 printk("%s: FPSCR_VXZDZ raised\n", __FUNCTION__);
36 #endif
38 if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) {
39 ret |= EFLAG_VXIDI;
40 #ifdef DEBUG
41 printk("%s: FPSCR_VXIDI raised\n", __FUNCTION__);
42 #endif
45 if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) {
46 ret |= EFLAG_DIVZERO;
47 if (__FPU_TRAP_P(EFLAG_DIVZERO))
48 return ret;
51 FP_DIV_D(R, A, B);
53 #ifdef DEBUG
54 printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
55 #endif
57 return (ret | __FP_PACK_DS(frD, R));