From: Korey Sewell <ksewell@umich.edu>
Date: Wed, 8 Feb 2006 00:28:19 +0000 (-0500)
Subject: Actually we do need a separate class for Integer Ops with Immediates!!!
X-Git-Tag: m5_2.0_beta1~87^2~120^2
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7219693f4c425b5da1557823f92da13edda6b71a;p=gem5.git

Actually we do need a separate class for Integer Ops with Immediates!!!
The extra class is needed because of the necessisty of an immediate member variable.

Also, added some 'very modest' python code to choose between the IntOp and
the IntImmOp based on the instruction name ...

--HG--
extra : convert_revision : f109c12418202a99b40e270360134e8335739836
---

diff --git a/arch/mips/isa/formats/int.format b/arch/mips/isa/formats/int.format
index edfdddb18..5b8df54e9 100644
--- a/arch/mips/isa/formats/int.format
+++ b/arch/mips/isa/formats/int.format
@@ -12,7 +12,22 @@ output header {{
                 protected:
 
                 /// Constructor
-                IntegerOp(const char *mnem, MachInst _machInst, OpClass __opClass) : MipsStaticInst(mnem, _machInst, __opClass)
+                IntegerOp(const char *mnem, MachInst _machInst, OpClass __opClass) :
+                                MipsStaticInst(mnem, _machInst, __opClass)
+                {
+                }
+
+                std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+        };
+
+        class IntImmOp : public MipsStaticInst
+        {
+                protected:
+                uint16_t imm;
+
+                /// Constructor
+                IntegerOp(const char *mnem, MachInst _machInst, OpClass __opClass) :
+                                MipsStaticInst(mnem, _machInst, __opClass),imm(INTIMM)
                 {
                 }
 
@@ -33,39 +48,23 @@ output decoder {{
         }
 }};
 
-def template IntExecute {{
-        Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
-        {
-                //Attempt to execute the instruction
-                try
-                {
-                        %(op_decl)s;
-                        %(op_rd)s;
-                        %(code)s;
-                }
-                //If we have an exception for some reason,
-                //deal with it
-                catch(MipsException except)
-                {
-                        //Deal with exception
-                        return No_Fault;
-                }
-
-                //Write the resulting state to the execution context
-                %(op_wb)s;
-
-                return No_Fault;
-        }
-}};
-
 // Primary format for integer operate instructions:
 def format IntOp(code, *opt_flags) {{
         orig_code = code
         cblk = CodeBlock(code)
-        iop = InstObjParams(name, Name, 'MipsStaticInst', cblk, opt_flags)
+
+        //Figure out if we are creating a IntImmOp or a IntOp
+        strlen = len(name)
+        if ( name[strlen-1] = 'i' or ( name[strlen-2:] = 'iu'))
+                iop = InstObjParams(name, Name, 'IntOp', cblk, opt_flags)
+        else:
+                iop = InstObjParams(name, Name, 'IntImmOp', cblk, opt_flags)
+
         header_output = BasicDeclare.subst(iop)
         decoder_output = BasicConstructor.subst(iop)
-        decode_block = BasicDecodeWithMnemonic.subst(iop)
-        exec_output = IntegerExecute.subst(iop)
+        decode_block = OperateNopCheckDecode.subst(iop)
+        exec_output = BasicExecute.subst(iop)
 }};
 
+
+