Linux-2.6.12-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!
diff --git a/arch/arm/nwfpe/fpmodule.inl b/arch/arm/nwfpe/fpmodule.inl
new file mode 100644
index 0000000..e5f59e9
--- /dev/null
+++ b/arch/arm/nwfpe/fpmodule.inl
@@ -0,0 +1,74 @@
+/*
+ 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.
+*/
+
+static inline unsigned long readRegister(const unsigned int nReg)
+{
+ /* Note: The CPU thinks it has dealt with the current instruction.
+ As a result the program counter has been advanced to the next
+ instruction, and points 4 bytes beyond the actual instruction
+ that caused the invalid instruction trap to occur. We adjust
+ for this in this routine. LDF/STF instructions with Rn = PC
+ depend on the PC being correct, as they use PC+8 in their
+ address calculations. */
+ unsigned long *userRegisters = GET_USERREG();
+ unsigned int val = userRegisters[nReg];
+ if (REG_PC == nReg)
+ val -= 4;
+ return val;
+}
+
+static inline void
+writeRegister(const unsigned int nReg, const unsigned long val)
+{
+ unsigned long *userRegisters = GET_USERREG();
+ userRegisters[nReg] = val;
+}
+
+static inline unsigned long readCPSR(void)
+{
+ return (readRegister(REG_CPSR));
+}
+
+static inline void writeCPSR(const unsigned long val)
+{
+ writeRegister(REG_CPSR, val);
+}
+
+static inline unsigned long readConditionCodes(void)
+{
+#ifdef __FPEM_TEST__
+ return (0);
+#else
+ return (readCPSR() & CC_MASK);
+#endif
+}
+
+static inline void writeConditionCodes(const unsigned long val)
+{
+ unsigned long *userRegisters = GET_USERREG();
+ unsigned long rval;
+ /*
+ * Operate directly on userRegisters since
+ * the CPSR may be the PC register itself.
+ */
+ rval = userRegisters[REG_CPSR] & ~CC_MASK;
+ userRegisters[REG_CPSR] = rval | (val & CC_MASK);
+}