diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/nwfpe/fpa11.inl |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/arm/nwfpe/fpa11.inl')
-rw-r--r-- | arch/arm/nwfpe/fpa11.inl | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/nwfpe/fpa11.inl b/arch/arm/nwfpe/fpa11.inl new file mode 100644 index 000000000000..10c3caf2868f --- /dev/null +++ b/arch/arm/nwfpe/fpa11.inl | |||
@@ -0,0 +1,51 @@ | |||
1 | /* | ||
2 | NetWinder Floating Point Emulator | ||
3 | (c) Rebel.COM, 1998,1999 | ||
4 | |||
5 | Direct questions, comments to Scott Bambrough <scottb@netwinder.org> | ||
6 | |||
7 | This program is free software; you can redistribute it and/or modify | ||
8 | it under the terms of the GNU General Public License as published by | ||
9 | the Free Software Foundation; either version 2 of the License, or | ||
10 | (at your option) any later version. | ||
11 | |||
12 | This program is distributed in the hope that it will be useful, | ||
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | GNU General Public License for more details. | ||
16 | |||
17 | You should have received a copy of the GNU General Public License | ||
18 | along with this program; if not, write to the Free Software | ||
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
20 | */ | ||
21 | |||
22 | #include "fpa11.h" | ||
23 | |||
24 | /* Read and write floating point status register */ | ||
25 | extern __inline__ unsigned int readFPSR(void) | ||
26 | { | ||
27 | FPA11 *fpa11 = GET_FPA11(); | ||
28 | return (fpa11->fpsr); | ||
29 | } | ||
30 | |||
31 | extern __inline__ void writeFPSR(FPSR reg) | ||
32 | { | ||
33 | FPA11 *fpa11 = GET_FPA11(); | ||
34 | /* the sysid byte in the status register is readonly */ | ||
35 | fpa11->fpsr = (fpa11->fpsr & MASK_SYSID) | (reg & ~MASK_SYSID); | ||
36 | } | ||
37 | |||
38 | /* Read and write floating point control register */ | ||
39 | extern __inline__ FPCR readFPCR(void) | ||
40 | { | ||
41 | FPA11 *fpa11 = GET_FPA11(); | ||
42 | /* clear SB, AB and DA bits before returning FPCR */ | ||
43 | return (fpa11->fpcr & ~MASK_RFC); | ||
44 | } | ||
45 | |||
46 | extern __inline__ void writeFPCR(FPCR reg) | ||
47 | { | ||
48 | FPA11 *fpa11 = GET_FPA11(); | ||
49 | fpa11->fpcr &= ~MASK_WFC; /* clear SB, AB and DA bits */ | ||
50 | fpa11->fpcr |= (reg & MASK_WFC); /* write SB, AB and DA bits */ | ||
51 | } | ||