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authorKorey Sewell <ksewell@umich.edu>2007-06-22 19:03:42 -0400
committerKorey Sewell <ksewell@umich.edu>2007-06-22 19:03:42 -0400
commit753adb38d5471d23315d1bcfc6a744d1c6e03975 (patch)
tree9ae1cc842f4c3756acf86147a5fd6772d7a6622f /src/base/bitfield.hh
parent16c1b5484f576b6aebea9ab5ffab4ea64f080de0 (diff)
downloadgem5-753adb38d5471d23315d1bcfc6a744d1c6e03975.tar.xz
mips import pt. 1
src/arch/mips/SConscript: "mips import pt.1". --HG-- extra : convert_revision : 2e393341938bebf32fb638a209262d074fad4cc1
Diffstat (limited to 'src/base/bitfield.hh')
-rw-r--r--src/base/bitfield.hh30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/base/bitfield.hh b/src/base/bitfield.hh
index 518bad6b8..70a46386e 100644
--- a/src/base/bitfield.hh
+++ b/src/base/bitfield.hh
@@ -59,6 +59,17 @@ bits(T val, int first, int last)
}
/**
+ * Extract the bit from this position from 'val' and right justify it.
+ */
+template <class T>
+inline
+T
+bits(T val, int bit)
+{
+ return bits(val, bit, bit);
+}
+
+/**
* Mask off the given bits in place like bits() but without shifting.
* msb = 63, lsb = 0
*/
@@ -102,6 +113,17 @@ insertBits(T val, int first, int last, B bit_val)
}
/**
+ * Overloaded for access to only one bit in value
+ */
+template <class T, class B>
+inline
+T
+insertBits(T val, int bit, B bit_val)
+{
+ return insertBits(val, bit, bit, bit_val);
+}
+
+/**
* A convenience function to replace bits first to last of val with bit_val
* in place.
*/
@@ -113,6 +135,14 @@ replaceBits(T& val, int first, int last, B bit_val)
val = insertBits(val, first, last, bit_val);
}
+/** Overloaded function to allow to access only 1 bit*/
+template <class T, class B>
+inline
+void
+replaceBits(T& val, int bit, B bit_val)
+{
+ val = insertBits(val, bit, bit, bit_val);
+}
/**
* Returns the bit position of the MSB that is set in the input
*/