byucc.jhdl.platforms.util.readback.Xilinx.Virtex
Class MRP_Virtex

java.lang.Object
  byucc.jhdl.platforms.util.readback.Xilinx.Virtex.MRP_Virtex

All Implemented Interfaces:

MRP_VirtexConstants

public class MRP_Virtex

extends java.lang.Object

implements MRP_VirtexConstants

This class parses Section 5 (the optimization section) of Virtex .mrp (Map report) files generated with the -detail option to Map and builds a MergedSignalsHash which relates physical signal names to all their logical signal aliases. Though only the merged signals are really recorded, the grammar is "complete" for the entire section. The parser skips the rest of the file by returning at the end of the section. As mentioned before, the parser produces a Hashtable of MergedSignals which reflects the signals that were merged by the Xilinx Map tool. The parser handles multi-level merges, in other words, when a signal has been merged into one signal and then that signal is merged into to yet others.

Author:

Paul Graham

Field Summary

Token	jj_nt
Token	token
MRP_VirtexTokenManager	token_source

Fields inherited from interface byucc.jhdl.platforms.util.readback.Xilinx.Virtex.MRP_VirtexConstants

BLOCK, COLON, COMMA, DEFAULT, EOF, EQUAL, EXT_SELECTIO, ID, IDCONTINUATION, LANGLE, LBRACKET, LOADLESSBLOCK, LOGICNAME, LPAREN, MERGEDSIGNALS, NETEXT, NUM, OPTIMIZEDBLOCKS, PERIOD, PRIM_TYPE, PRIMITIVE, RANGLE, RBRACKET, REDUNDANTBLOCKS, REMOVED, RPAREN, SECTION5, SECTION6, SELECTIO, SOURCELESSBLOCK, THESIGNAL, TOENABLEPRINTING, tokenImage, TRIMMEDLOGIC1, TRIMMEDLOGIC2, TYPE, UNUSEDBLOCK

Constructor Summary

MRP_Virtex(java.io.InputStream stream)

MRP_Virtex(MRP_VirtexTokenManager tm)

MRP_Virtex(java.io.Reader stream)

Method Summary

void	disable_tracing()
void	enable_tracing()
ParseException	generateParseException()
java.util.Hashtable	getMergedSignalsHash() Returns a reference to the Hashtable of MergedSignals built by the parser.
Token	getNextToken()
Token	getToken(int index)
static java.io.BufferedReader	initStream(java.io.InputStream ins) Provides a way for the user to skip past the first four sections of the MRP file.
void	initTables() Initializes the extra data structures used by the parser---it must be called before calling the parseMRP method.
static void	main(java.lang.String[] args) Provides a command line interface test for the class.
void	MapDetailMessage() Parses message which describes how to get a more detailed Map Report file.
void	MergedSignals() Parses the Merged Signals subsection of the file and builds the MergedSignalsHash and the MergedToHash based on the information from this subsection.
void	OptimizedBlocks() Parses the Optimized Block portion of the file.
void	parseMRP() Initiates the parsing of the Section 5 of the MRP file.
void	RedundantBlocks() Parses the Redundant Block subsection of the file.
void	ReInit(java.io.InputStream stream)
void	ReInit(MRP_VirtexTokenManager tm)
void	ReInit(java.io.Reader stream)
void	RemovedBlock() Parses just the removed logic/block clauses for the Trimmed Logic section.
void	RemovedSignal() Parses just the removed signal clauses for the Trimmed Logic section.
void	S5Heading() Parses the heading of Section 5
void	S6Heading() Parses the heading of section 6.
void	TrimmedLogic() Parses any trimmed logic statements and headings

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

token_source

public MRP_VirtexTokenManager token_source

token

public Token token

jj_nt

public Token jj_nt

Constructor Detail

MRP_Virtex

public MRP_Virtex(java.io.InputStream stream)

MRP_Virtex

public MRP_Virtex(java.io.Reader stream)

MRP_Virtex

public MRP_Virtex(MRP_VirtexTokenManager tm)

Method Detail

main

public static void main(java.lang.String[] args)
                 throws ParseException

Provides a command line interface test for the class.

Parameters:

args - If the parameter is empty, then the parser just parses the input via System.in (stdin). If there is one command line argument, the "*.mrp" ending is added to the argument when searching for the MRP file to parse and process.

Throws:

ParseException

initTables

public void initTables()

Initializes the extra data structures used by the parser---it must be called before calling the parseMRP method. Ideally, I should have just extended the MRP_Virtex class so I could override it's constructors. The default constructors are not flexible enough.

initStream

public static java.io.BufferedReader initStream(java.io.InputStream ins)

Provides a way for the user to skip past the first four sections of the MRP file.

getMergedSignalsHash

public java.util.Hashtable getMergedSignalsHash()

Returns a reference to the Hashtable of MergedSignals built by the parser.

Returns:

Reference to MergedSignalsHash.

parseMRP

public final void parseMRP()
                    throws ParseException

Initiates the parsing of the Section 5 of the MRP file. It is assumed that the first part of the file has already been skipped.

Throws:

ParseException

S5Heading

public final void S5Heading()
                     throws ParseException

Parses the heading of Section 5

Throws:

ParseException

TrimmedLogic

public final void TrimmedLogic()
                        throws ParseException

Parses any trimmed logic statements and headings

Throws:

ParseException

RemovedSignal

public final void RemovedSignal()
                         throws ParseException

Parses just the removed signal clauses for the Trimmed Logic section.

Throws:

ParseException

RemovedBlock

public final void RemovedBlock()
                        throws ParseException

Parses just the removed logic/block clauses for the Trimmed Logic section.

Throws:

ParseException

OptimizedBlocks

public final void OptimizedBlocks()
                           throws ParseException

Parses the Optimized Block portion of the file.

Throws:

ParseException

RedundantBlocks

public final void RedundantBlocks()
                           throws ParseException

Parses the Redundant Block subsection of the file.

Throws:

ParseException

MergedSignals

public final void MergedSignals()
                         throws ParseException

Parses the Merged Signals subsection of the file and builds the MergedSignalsHash and the MergedToHash based on the information from this subsection. Because of the presence of multi-level merges, the method effectively performs a transitive closure on signal names to resolve signal name aliases.

Throws:

ParseException

MapDetailMessage

public final void MapDetailMessage()
                            throws ParseException

Parses message which describes how to get a more detailed Map Report file. This method throws a MapDetailException since the .mrp file was generated without the -detail option.

Throws:

ParseException

S6Heading

public final void S6Heading()
                     throws ParseException

Parses the heading of section 6.

Throws:

ParseException

ReInit

public void ReInit(java.io.InputStream stream)

ReInit

public void ReInit(java.io.Reader stream)

ReInit

public void ReInit(MRP_VirtexTokenManager tm)

getNextToken

public final Token getNextToken()

getToken

public final Token getToken(int index)

generateParseException

public ParseException generateParseException()

enable_tracing

public final void enable_tracing()

disable_tracing

public final void disable_tracing()