Changed the floating point register file into a class with appropriate accessor functions. The width of the floating point register to access can be specified, and if not, it will be accessed at its "natural" width. That is, the width of each individual register. Also, the functions which access the bit representation of floating point registers can use the blahblahBits functions now instead of blahblahInt.

arch/alpha/arguments.cc:
    Renamed readFloatRegInt to readFloatRegBits
arch/alpha/ev5.cc:
    Removed the Double from setFloatRegDouble
arch/alpha/registerfile.hh:
    Changed the floating point register file from a union of arrays to a class with appropriate accessor functions. The interface is necessary for SPARC.
arch/alpha/types.hh:
    Changed the FloatReg type from a union of uint64_t and double to a double, and defined a new type FloatRegBits which is a uint64_t and is used to return the bits which compose a floating point register rather than the value of the register.
arch/isa_parser.py:
    Adjusted the makeRead and makeWrite functions to generate the new versions of readFloatReg and setFloatReg.
base/remote_gdb.cc:
kern/tru64/tru64.hh:
    Replaced setFloatRegInt with setFloatRegBits
cpu/cpu_exec_context.cc:
    Removed the duplicated code for setting the floating point registers, and renamed the function to setFloatRegBits and readFloatRegBits.
cpu/cpu_exec_context.hh:
cpu/exec_context.hh:
cpu/o3/alpha_cpu_impl.hh:
cpu/o3/alpha_dyn_inst.hh:
cpu/o3/cpu.cc:
cpu/o3/cpu.hh:
cpu/o3/regfile.hh:
cpu/ozone/cpu.hh:
cpu/simple/cpu.hh:
    Implemented the new versions of the floating point read and set functions.
cpu/simple/cpu.cc:
    Replaced setFloatRegDouble with setFloatReg

--HG--
extra : convert_revision : 3dad06224723137f6033c335fb8f6395636767f2

1 files changed, 24 insertions, 12 deletions

diff --git a/cpu/ozone/cpu.hh b/cpu/ozone/cpu.hh
index f5d84d656..fa849bb09 100644
--- a/cpu/ozone/cpu.hh
+++ b/cpu/ozone/cpu.hh
@@ -406,22 +406,28 @@ class OoOCPU : public BaseCPU
         return xc->readIntReg(si->srcRegIdx(idx));
     }
 
-    float readFloatRegSingle(StaticInst *si, int idx)
+    FloatReg readFloatReg(StaticInst *si, int idx, width)
     {
         int reg_idx = si->srcRegIdx(idx) - TheISA::FP_Base_DepTag;
-        return xc->readFloatRegSingle(reg_idx);
+        return xc->readFloatReg(reg_idx, width);
     }
 
-    double readFloatRegDouble(StaticInst *si, int idx)
+    FloatReg readFloatReg(StaticInst *si, int idx)
     {
         int reg_idx = si->srcRegIdx(idx) - TheISA::FP_Base_DepTag;
-        return xc->readFloatRegDouble(reg_idx);
+        return xc->readFloatReg(reg_idx);
     }
 
-    uint64_t readFloatRegInt(StaticInst *si, int idx)
+    FloatRegBits readFloatRegBits(StaticInst *si, int idx, int width)
     {
         int reg_idx = si->srcRegIdx(idx) - TheISA::FP_Base_DepTag;
-        return xc->readFloatRegInt(reg_idx);
+        return xc->readFloatRegBits(reg_idx, width);
+    }
+
+    FloatRegBits readFloatRegBits(StaticInst *si, int idx)
+    {
+        int reg_idx = si->srcRegIdx(idx) - TheISA::FP_Base_DepTag;
+        return xc->readFloatRegBits(reg_idx);
     }
 
     void setIntReg(StaticInst *si, int idx, uint64_t val)
@@ -429,22 +435,28 @@ class OoOCPU : public BaseCPU
         xc->setIntReg(si->destRegIdx(idx), val);
     }
 
-    void setFloatRegSingle(StaticInst *si, int idx, float val)
+    void setFloatReg(StaticInst *si, int idx, FloatReg val, int width)
+    {
+        int reg_idx = si->destRegIdx(idx) - TheISA::FP_Base_DepTag;
+        xc->setFloatReg(reg_idx, val, width);
+    }
+
+    void setFloatReg(StaticInst *si, int idx, FloatReg val)
     {
         int reg_idx = si->destRegIdx(idx) - TheISA::FP_Base_DepTag;
-        xc->setFloatRegSingle(reg_idx, val);
+        xc->setFloatReg(reg_idx, val);
     }
 
-    void setFloatRegDouble(StaticInst *si, int idx, double val)
+    void setFloatRegBits(StaticInst *si, int idx, FloatRegBits val, int width)
     {
         int reg_idx = si->destRegIdx(idx) - TheISA::FP_Base_DepTag;
-        xc->setFloatRegDouble(reg_idx, val);
+        xc->setFloatRegBits(reg_idx, val, width);
     }
 
-    void setFloatRegInt(StaticInst *si, int idx, uint64_t val)
+    void setFloatRegBits(StaticInst *si, int idx, FloatRegBits val)
     {
         int reg_idx = si->destRegIdx(idx) - TheISA::FP_Base_DepTag;
-        xc->setFloatRegInt(reg_idx, val);
+        xc->setFloatRegBits(reg_idx, val);
     }
 
     uint64_t readPC() { return PC; }