PageRenderTime 13ms CodeModel.GetById 8ms app.highlight 2ms RepoModel.GetById 1ms app.codeStats 0ms

/arch/ppc/math-emu/stfs.c

https://bitbucket.org/evzijst/gittest
C | 41 lines | 32 code | 9 blank | 0 comment | 3 complexity | 422a9aaa7ce8452f617ab8fec91e3a48 MD5 | raw file
 1#include <linux/types.h>
 2#include <linux/errno.h>
 3#include <asm/uaccess.h>
 4
 5#include "soft-fp.h"
 6#include "double.h"
 7#include "single.h"
 8
 9int
10stfs(void *frS, void *ea)
11{
12	FP_DECL_D(A);
13	FP_DECL_S(R);
14	float f;
15	int err;
16
17#ifdef DEBUG
18	printk("%s: S %p, ea %p\n", __FUNCTION__, frS, ea);
19#endif
20
21	__FP_UNPACK_D(A, frS);
22
23#ifdef DEBUG
24	printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
25#endif
26
27	FP_CONV(S, D, 1, 2, R, A);
28
29#ifdef DEBUG
30	printk("R: %ld %lu %ld (%ld)\n", R_s, R_f, R_e, R_c);
31#endif
32
33	err = _FP_PACK_CANONICAL(S, 1, R);
34	if (!err || !__FPU_TRAP_P(err)) {
35		__FP_PACK_RAW_1(S, &f, R);
36		if (copy_to_user(ea, &f, sizeof(float)))
37			return -EFAULT;
38	}
39
40	return err;
41}