97429d8eee
Edit the convert_and_round function which access FloatRegFile
arch/isa_parser.py:
recognize when we are writing a 'uint64_t' FloatReg and set the width appropriately
arch/mips/isa/decoder.isa:
Send a 'float' to the convert function instead of a unsigned word. Do this so we dont have to worry about the
bit manipulation ourselves. We can just concern ourselves with values.
Use unsigned double to get movd...
arch/mips/isa/formats/fp.isa:
float debug statement
arch/mips/isa_traits.cc:
add different versions of convert_and_round functions
arch/mips/isa_traits.hh:
Use an array of uint32_t unsigned integers to represent the Floating Point Regfile
configs/test/hello_mips:
basic FP program
cpu/simple/cpu.hh:
spacing
--HG--
extra : convert_revision : a6fca91ad6365c83025f1131d71fa1b8ee76d7bc
51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
// -*- mode:c++ -*-
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////////////////////////////////////////////////////////////////////
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//
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// Floating Point operate instructions
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//
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output header {{
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/**
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* Base class for FP operations.
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*/
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class FPOp : public MipsStaticInst
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{
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protected:
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/// Constructor
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FPOp(const char *mnem, MachInst _machInst, OpClass __opClass) : MipsStaticInst(mnem, _machInst, __opClass)
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{
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}
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std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
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};
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}};
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output decoder {{
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std::string FPOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
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{
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return "Disassembly of integer instruction\n";
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}
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}};
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// Primary format for float operate instructions:
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def format FloatOp(code, *flags) {{
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code = 'std::cout << "Floating Point Op" << std::endl;\n' + code
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iop = InstObjParams(name, Name, 'MipsStaticInst', CodeBlock(code), flags)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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decode_block = BasicDecode.subst(iop)
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exec_output = BasicExecute.subst(iop)
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}};
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// Primary format for float64 operate instructions:
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def format Float64Op(code, *flags) {{
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code = 'std::cout << "Floating Point 64" << std::endl;\n' + code
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iop = InstObjParams(name, Name, 'MipsStaticInst', CodeBlock(code), flags)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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decode_block = BasicDecode.subst(iop)
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exec_output = BasicExecute.subst(iop)
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}};
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