mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
56 lines
1.2 KiB
56 lines
1.2 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
#include <linux/types.h> |
|
#include <linux/errno.h> |
|
#include <linux/uaccess.h> |
|
|
|
#include <asm/sfp-machine.h> |
|
#include <math-emu/soft-fp.h> |
|
#include <math-emu/double.h> |
|
#include <math-emu/single.h> |
|
|
|
int |
|
fnmadds(void *frD, void *frA, void *frB, void *frC) |
|
{ |
|
FP_DECL_D(R); |
|
FP_DECL_D(A); |
|
FP_DECL_D(B); |
|
FP_DECL_D(C); |
|
FP_DECL_D(T); |
|
FP_DECL_EX; |
|
|
|
#ifdef DEBUG |
|
printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC); |
|
#endif |
|
|
|
FP_UNPACK_DP(A, frA); |
|
FP_UNPACK_DP(B, frB); |
|
FP_UNPACK_DP(C, frC); |
|
|
|
#ifdef DEBUG |
|
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); |
|
printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); |
|
printk("C: %ld %lu %lu %ld (%ld)\n", C_s, C_f1, C_f0, C_e, C_c); |
|
#endif |
|
|
|
if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) || |
|
(A_c == FP_CLS_ZERO && C_c == FP_CLS_INF)) |
|
FP_SET_EXCEPTION(EFLAG_VXIMZ); |
|
|
|
FP_MUL_D(T, A, C); |
|
|
|
if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF) |
|
FP_SET_EXCEPTION(EFLAG_VXISI); |
|
|
|
FP_ADD_D(R, T, B); |
|
|
|
if (R_c != FP_CLS_NAN) |
|
R_s ^= 1; |
|
|
|
#ifdef DEBUG |
|
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); |
|
#endif |
|
|
|
__FP_PACK_DS(frD, R); |
|
|
|
return FP_CUR_EXCEPTIONS; |
|
}
|
|
|