OpenASIP  2.0
VhdlImageWriter.cc
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1 /*
2  Copyright (c) 2002-2010 Tampere University.
3 
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24 /**
25  * @file VhdlImageWriter.cc
26  *
27  * Implementation of VhdlImageWriter class.
28  *
29  * @author Otto Esko 2010 (otto.esko-no.spam-tut.fi)
30  * @note rating: red
31  */
32 
33 #include <iostream>
34 #include "InstructionBitVector.hh"
35 #include "ArrayImageWriter.hh"
36 #include "VhdlImageWriter.hh"
37 using std::endl;
38 
39 /**
40  * The constructor.
41  *
42  * @param bits The bits to write.
43  * @param rowLength Length of the rows to write.
44  */
46  const BitVector& bits,
47  int rowLength,
48  const std::string& entityName) :
49  ArrayImageWriter(bits, rowLength), entityName_(entityName) {
50 }
51 
52 /**
53  * The destructor.
54  */
56 }
57 
58 /**
59  * Writes the bit image to the given stream.
60  *
61  * @param stream The stream to write.
62  */
63 void VhdlImageWriter::writeImage(std::ostream& stream) const {
64  writeHeader(stream);
66  writeEnding(stream);
67 }
68 
69 
70 /**
71  * Writes the vhdl declaration stuff to the beginning of the stream
72  */
73 void VhdlImageWriter::writeHeader(std::ostream& stream) const {
74  stream << "library ieee;" << endl
75  << "use ieee.std_logic_1164.all;" << endl
76  << "use ieee.std_logic_arith.all;" << endl << endl;
77 
78  stream << "package " << packageName() << " is" << endl << endl
79  << " type std_logic_dmem_matrix is array (natural range <>) of "
80  << "std_logic_vector(" << rowLength() << "-1 downto 0);"
81  << endl << endl;
82 
83  stream << " constant dmem_array : std_logic_dmem_matrix := (" << endl;
84 }
85 
86 /**
87  * Writes the end declarations to the stream
88  */
89 void VhdlImageWriter::writeEnding(std::ostream& stream) const {
90  stream << ");" << endl << endl
91  << "end " << packageName() << ";" << endl;
92 }
93 
94 std::string
96 
97  std::string package = "dmem_image";
98  if (!entityName_.empty()) {
99  package = entityName_ + "_" + package;
100  }
101  return package;
102 }
VhdlImageWriter::VhdlImageWriter
VhdlImageWriter(const BitVector &bits, int rowLength, const std::string &entityName)
Definition: VhdlImageWriter.cc:45
VhdlImageWriter::entityName_
std::string entityName_
Definition: VhdlImageWriter.hh:59
InstructionBitVector.hh
BitVector
Definition: BitVector.hh:44
AsciiImageWriter::rowLength
int rowLength() const
Definition: AsciiImageWriter.cc:112
VhdlImageWriter.hh
ArrayImageWriter.hh
ArrayImageWriter::writeImage
virtual void writeImage(std::ostream &stream) const
Definition: ArrayImageWriter.cc:63
VhdlImageWriter::writeImage
virtual void writeImage(std::ostream &stream) const
Definition: VhdlImageWriter.cc:63
VhdlImageWriter::~VhdlImageWriter
virtual ~VhdlImageWriter()
Definition: VhdlImageWriter.cc:55
ArrayImageWriter
Definition: ArrayImageWriter.hh:43
VhdlImageWriter::writeHeader
void writeHeader(std::ostream &stream) const
Definition: VhdlImageWriter.cc:73
VhdlImageWriter::writeEnding
void writeEnding(std::ostream &stream) const
Definition: VhdlImageWriter.cc:89
VhdlImageWriter::packageName
std::string packageName() const
Definition: VhdlImageWriter.cc:95