cpu: implements vector registers

This adds a vector register type.  The type is defined as a std::array of a
fixed number of uint64_ts.  The isa_parser.py has been modified to parse vector
register operands and generate the required code.  Different cpus have vector
register files now.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/arch/arm/utility.cc b/src/arch/arm/utility.cc
index 34fcfd482..e1f9dfe04 100644
--- a/src/arch/arm/utility.cc
+++ b/src/arch/arm/utility.cc
@@ -156,6 +156,9 @@ copyRegs(ThreadContext *src, ThreadContext *dest)
     for (int i = 0; i < NumCCRegs; i++)
         dest->setCCReg(i, src->readCCReg(i));
 
+    // Copy vector registers when vector registers put to use.
+    assert(NumVectorRegs == 0);
+
     for (int i = 0; i < NumMiscRegs; i++)
         dest->setMiscRegNoEffect(i, src->readMiscRegNoEffect(i));