Hand merge. Stuff probably doesn't compile.

--HG--
rename : arch/alpha/isa_desc => arch/alpha/isa/main.isa
rename : arch/alpha/alpha_linux_process.cc => arch/alpha/linux/process.cc
rename : arch/alpha/alpha_linux_process.hh => arch/alpha/linux/process.hh
rename : arch/alpha/alpha_tru64_process.cc => arch/alpha/tru64/process.cc
rename : arch/alpha/alpha_tru64_process.hh => arch/alpha/tru64/process.hh
rename : cpu/exec_context.cc => cpu/cpu_exec_context.cc
rename : cpu/exec_context.hh => cpu/cpu_exec_context.hh
extra : convert_revision : 7d1efcedd708815d985a951f6f010fbd83dc27e8

1 files changed, 112 insertions, 0 deletions

diff --git a/arch/sparc/isa/formats/integerop.isa b/arch/sparc/isa/formats/integerop.isa
new file mode 100644
index 000000000..5a9e09896
--- /dev/null
+++ b/arch/sparc/isa/formats/integerop.isa
@@ -0,0 +1,112 @@
+////////////////////////////////////////////////////////////////////
+//
+// Integer operate instructions
+//
+
+output header {{
+        /**
+         * Base class for integer operations.
+         */
+        class IntegerOp : public SparcStaticInst
+        {
+          protected:
+            // Constructor
+            IntegerOp(const char *mnem, MachInst _machInst, OpClass __opClass) :
+                SparcStaticInst(mnem, _machInst, __opClass)
+            {
+            }
+
+            std::string generateDisassembly(Addr pc,
+                    const SymbolTable *symtab) const;
+        };
+}};
+
+output decoder {{
+        std::string IntegerOp::generateDisassembly(Addr pc,
+                const SymbolTable *symtab) const
+        {
+                return "Integer instruction\n";
+        }
+}};
+
+def template IntegerExecute {{
+        Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
+        {
+                //These are set to constants when the execute method
+                //is generated
+                bool useCc = ;
+                bool checkPriv = ;
+
+                //Attempt to execute the instruction
+                try
+                {
+                        checkPriv;
+
+                        %(op_decl)s;
+                        %(op_rd)s;
+                        %(code)s;
+                }
+                //If we have an exception for some reason,
+                //deal with it
+                catch(SparcException except)
+                {
+                        //Deal with exception
+                        return No_Fault;
+                }
+
+                //Write the resulting state to the execution context
+                %(op_wb)s;
+                if(useCc)
+                {
+                        xc->regs.miscRegFile.ccrFields.iccFields.n = Rd & (1 << 63);
+                        xc->regs.miscRegFile.ccrFields.iccFields.z = (Rd == 0);
+                        xc->regs.miscRegFile.ccrFields.iccFields.v = ivValue;
+                        xc->regs.miscRegFile.ccrFields.iccFields.c = icValue;
+                        xc->regs.miscRegFile.ccrFields.xccFields.n = Rd & (1 << 31);
+                        xc->regs.miscRegFile.ccrFields.xccFields.z = ((Rd & 0xFFFFFFFF) == 0);
+                        xc->regs.miscRegFile.ccrFields.xccFields.v = xvValue;
+                        xc->regs.miscRegFile.ccrFields.xccFields.c = xcValue;
+                }
+                return No_Fault;
+        }
+}};
+
+// Primary format for integer operate instructions:
+def format IntegerOp(code, *opt_flags) {{
+        orig_code = code
+        cblk = CodeBlock(code)
+        checkPriv = (code.find('checkPriv') != -1)
+        code.replace('checkPriv', '')
+        if checkPriv:
+                code.replace('checkPriv;', 'if(!xc->regs.miscRegFile.pstateFields.priv) throw privileged_opcode;')
+        else:
+                code.replace('checkPriv;', '')
+        for (marker, value) in (('ivValue', '0'), ('icValue', '0'),
+                       ('xvValue', '0'), ('xcValue', '0')):
+                code.replace(marker, value)
+        iop = InstObjParams(name, Name, 'SparcStaticInst', cblk, opt_flags)
+        header_output = BasicDeclare.subst(iop)
+        decoder_output = BasicConstructor.subst(iop)
+        decode_block = BasicDecodeWithMnemonic.subst(iop)
+        exec_output = IntegerExecute.subst(iop)
+}};
+
+// Primary format for integer operate instructions:
+def format IntegerOpCc(code, icValue, ivValue, xcValue, xvValue, *opt_flags) {{
+        orig_code = code
+        cblk = CodeBlock(code)
+        checkPriv = (code.find('checkPriv') != -1)
+        code.replace('checkPriv', '')
+        if checkPriv:
+                code.replace('checkPriv;', 'if(!xc->regs.miscRegFile.pstateFields.priv) throw privileged_opcode;')
+        else:
+                code.replace('checkPriv;', '')
+        for (marker, value) in (('ivValue', ivValue), ('icValue', icValue),
+                       ('xvValue', xvValue), ('xcValue', xcValue)):
+                code.replace(marker, value)
+        iop = InstObjParams(name, Name, 'SparcStaticInst', cblk, opt_flags)
+        header_output = BasicDeclare.subst(iop)
+        decoder_output = BasicConstructor.subst(iop)
+        decode_block = BasicDecodeWithMnemonic.subst(iop)
+        exec_output = IntegerExecute.subst(iop)
+}};