gem5/arch/mips/isa/formats/int.isa
Korey Sewell 6bf71f96f3 MIPS generates ISA code through scons '.../decoder.cc'!!!
Now, must create g++ compilable code ...

arch/mips/isa/decoder.isa:
    missing a '}' ... edited a few instruction decodings ...
arch/mips/isa/formats.isa:
    rearranged #include
arch/mips/isa/formats/branch.isa:
    add Branch Likely  and Unconditional format
arch/mips/isa/formats/int.isa:
    move OperateNopCheckDecode template to another file ...
arch/mips/isa/formats/noop.isa:
    change Alpha to Mips in noop.isa

--HG--
extra : convert_revision : 4bf955fa6dffbbc99fb95fee7878f691e3df5424
2006-02-18 03:12:04 -05:00

76 lines
2.1 KiB
C++

// -*- mode:c++ -*-
////////////////////////////////////////////////////////////////////
//
// Integer operate instructions
//
//Outputs to decoder.hh
output header {{
/**
* Base class for integer operations.
*/
class IntOp : public MipsStaticInst
{
protected:
/// Constructor
IntOp(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
IntImmOp(const char *mnem, MachInst _machInst, OpClass __opClass) :
MipsStaticInst(mnem, _machInst, __opClass),imm(INTIMM)
{
}
std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
};
}};
//Outputs to decoder.cc
output decoder {{
std::string IntOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
return "Disassembly of integer instruction\n";
}
std::string IntImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
return "Disassembly of integer immediate instruction\n";
}
}};
//Used by decoder.isa
def format IntOp(code, *opt_flags) {{
orig_code = code
cblk = CodeBlock(code)
# Figure out if we are creating a IntImmOp or a IntOp
# by looking at the instruction name
iop = InstObjParams(name, Name, 'IntOp', cblk, opt_flags)
strlen = len(name)
if name[strlen-1] == 'i' or name[strlen-2:] == 'iu':
iop = InstObjParams(name, Name, 'IntImmOp', cblk, opt_flags)
header_output = BasicDeclare.subst(iop)
decoder_output = BasicConstructor.subst(iop)
decode_block = OperateNopCheckDecode.subst(iop)
exec_output = BasicExecute.subst(iop)
}};