aboutsummaryrefslogtreecommitdiff
path: root/arch/arm26/nwfpe/fpa11.inl
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm26/nwfpe/fpa11.inl
downloadlinux-stericsson-2.6.12-rc2.tar.gz
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/arm26/nwfpe/fpa11.inl')
-rw-r--r--arch/arm26/nwfpe/fpa11.inl51
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm26/nwfpe/fpa11.inl b/arch/arm26/nwfpe/fpa11.inl
new file mode 100644
index 000000000000..1c45cba2de66
--- /dev/null
+++ b/arch/arm26/nwfpe/fpa11.inl
@@ -0,0 +1,51 @@
+/*
+ NetWinder Floating Point Emulator
+ (c) Rebel.COM, 1998,1999
+
+ Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "fpa11.h"
+
+/* Read and write floating point status register */
+extern __inline__ unsigned int readFPSR(void)
+{
+ FPA11 *fpa11 = GET_FPA11();
+ return(fpa11->fpsr);
+}
+
+extern __inline__ void writeFPSR(FPSR reg)
+{
+ FPA11 *fpa11 = GET_FPA11();
+ /* the sysid byte in the status register is readonly */
+ fpa11->fpsr = (fpa11->fpsr & MASK_SYSID) | (reg & ~MASK_SYSID);
+}
+
+/* Read and write floating point control register */
+extern __inline__ FPCR readFPCR(void)
+{
+ FPA11 *fpa11 = GET_FPA11();
+ /* clear SB, AB and DA bits before returning FPCR */
+ return(fpa11->fpcr & ~MASK_RFC);
+}
+
+extern __inline__ void writeFPCR(FPCR reg)
+{
+ FPA11 *fpa11 = GET_FPA11();
+ fpa11->fpcr &= ~MASK_WFC; /* clear SB, AB and DA bits */
+ fpa11->fpcr |= (reg & MASK_WFC); /* write SB, AB and DA bits */
+}