1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/types.h>
3 #include <linux/errno.h>
4 #include <linux/uaccess.h>
5
6 #include <asm/sfp-machine.h>
7 #include <math-emu/soft-fp.h>
8 #include <math-emu/double.h>
9 #include <math-emu/single.h>
10
11 int
fmuls(void * frD,void * frA,void * frB)12 fmuls(void *frD, void *frA, void *frB)
13 {
14 FP_DECL_D(A);
15 FP_DECL_D(B);
16 FP_DECL_D(R);
17 FP_DECL_EX;
18
19 #ifdef DEBUG
20 printk("%s: %p %p %p\n", __func__, frD, frA, frB);
21 #endif
22
23 FP_UNPACK_DP(A, frA);
24 FP_UNPACK_DP(B, frB);
25
26 #ifdef DEBUG
27 printk("A: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
28 A_s, A_f1, A_f0, A_e, A_c, A_f1, A_f0, A_e + 1023);
29 printk("B: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
30 B_s, B_f1, B_f0, B_e, B_c, B_f1, B_f0, B_e + 1023);
31 #endif
32
33 if ((A_c == FP_CLS_INF && B_c == FP_CLS_ZERO) ||
34 (A_c == FP_CLS_ZERO && B_c == FP_CLS_INF))
35 FP_SET_EXCEPTION(EFLAG_VXIMZ);
36
37 FP_MUL_D(R, A, B);
38
39 #ifdef DEBUG
40 printk("D: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
41 R_s, R_f1, R_f0, R_e, R_c, R_f1, R_f0, R_e + 1023);
42 #endif
43
44 __FP_PACK_DS(frD, R);
45
46 return FP_CUR_EXCEPTIONS;
47 }
48