From c02f9cdddf157b91ca3a338bbe8b2a2b68d4ee93 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Wed, 2 Jun 2010 12:58:02 -0500
Subject: ARM: Add new base classes for data processing instructions.

---
 src/arch/arm/insts/pred_inst.hh | 47 +++++++++++++++++++++++++++++++++++++++++
 src/arch/arm/isa/operands.isa   |  6 ++++++
 2 files changed, 53 insertions(+)

(limited to 'src/arch/arm')

diff --git a/src/arch/arm/insts/pred_inst.hh b/src/arch/arm/insts/pred_inst.hh
index 817ed44f5..220cf6a0f 100644
--- a/src/arch/arm/insts/pred_inst.hh
+++ b/src/arch/arm/insts/pred_inst.hh
@@ -155,6 +155,53 @@ class PredIntOp : public PredOp
     std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
 };
 
+class DataImmOp : public PredOp
+{
+  protected:
+    IntRegIndex dest, op1;
+    uint32_t imm;
+    // Whether the carry flag should be modified if that's an option for
+    // this instruction.
+    bool rotC;
+
+    DataImmOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
+              IntRegIndex _dest, IntRegIndex _op1, uint32_t _imm, bool _rotC) :
+        PredOp(mnem, _machInst, __opClass),
+        dest(_dest), op1(_op1), imm(_imm), rotC(_rotC)
+    {}
+};
+
+class DataRegOp : public PredOp
+{
+  protected:
+    IntRegIndex dest, op1, op2;
+    int32_t shiftAmt;
+    ArmShiftType shiftType;
+
+    DataRegOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
+              IntRegIndex _dest, IntRegIndex _op1, IntRegIndex _op2,
+              int32_t _shiftAmt, ArmShiftType _shiftType) :
+        PredOp(mnem, _machInst, __opClass),
+        dest(_dest), op1(_op1), op2(_op2),
+        shiftAmt(_shiftAmt), shiftType(_shiftType)
+    {}
+};
+
+class DataRegRegOp : public PredOp
+{
+  protected:
+    IntRegIndex dest, op1, op2, shift;
+    ArmShiftType shiftType;
+
+    DataRegRegOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
+                 IntRegIndex _dest, IntRegIndex _op1, IntRegIndex _op2,
+                 IntRegIndex _shift, ArmShiftType _shiftType) :
+        PredOp(mnem, _machInst, __opClass),
+        dest(_dest), op1(_op1), op2(_op2), shift(_shift),
+        shiftType(_shiftType)
+    {}
+};
+
 /**
  * Base class for predicated macro-operations.
  */
diff --git a/src/arch/arm/isa/operands.isa b/src/arch/arm/isa/operands.isa
index f5d3e1042..244d217ce 100644
--- a/src/arch/arm/isa/operands.isa
+++ b/src/arch/arm/isa/operands.isa
@@ -76,6 +76,12 @@ def operands {{
              maybePCRead, maybePCWrite),
     'Index': ('IntReg', 'uw', 'index', 'IsInteger', 2,
               maybePCRead, maybePCWrite),
+    'Op1': ('IntReg', 'uw', 'op1', 'IsInteger', 3,
+              maybePCRead, maybePCWrite),
+    'Op2': ('IntReg', 'uw', 'op2', 'IsInteger', 4,
+              maybePCRead, maybePCWrite),
+    'Shift': ('IntReg', 'uw', 'shift', 'IsInteger', 5,
+              maybePCRead, maybePCWrite),
     #General Purpose Integer Reg Operands
     'Rd': ('IntReg', 'uw', 'RD', 'IsInteger', 1, maybePCRead, maybePCWrite),
     'Rm': ('IntReg', 'uw', 'RM', 'IsInteger', 2, maybePCRead, maybePCWrite),
-- 
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