Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Linus Torvalds (pre-git) |
170 |
90.43% |
1 |
16.67% |
| Kumar Gala |
12 |
6.38% |
1 |
16.67% |
| Liu Yu |
3 |
1.60% |
1 |
16.67% |
| Greg Kroah-Hartman |
1 |
0.53% |
1 |
16.67% |
| Harvey Harrison |
1 |
0.53% |
1 |
16.67% |
| Linus Torvalds |
1 |
0.53% |
1 |
16.67% |
| Total |
188 |
|
6 |
|
// 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>
int
fsub(void *frD, void *frA, void *frB)
{
FP_DECL_D(A);
FP_DECL_D(B);
FP_DECL_D(R);
FP_DECL_EX;
#ifdef DEBUG
printk("%s: %p %p %p\n", __func__, frD, frA, frB);
#endif
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
#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);
#endif
if (B_c != FP_CLS_NAN)
B_s ^= 1;
if (A_s != B_s && A_c == FP_CLS_INF && B_c == FP_CLS_INF)
FP_SET_EXCEPTION(EFLAG_VXISI);
FP_ADD_D(R, A, B);
#ifdef DEBUG
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
__FP_PACK_D(frD, R);
return FP_CUR_EXCEPTIONS;
}