-------------------------------------------------------------------------------
2.10 2010-09-12
-------------------------------------------------------------------------------
- Make CPU::Z80::Assembler::Preprocessor as a wrapper to Asm::Preproc
- Error messages stopped showing actual text of line containing the
error - cluters the display
- Use L<zzz|zzz> instead of L<zzz> in POD to avoid "the zzz manpage" rendering
-------------------------------------------------------------------------------
2.09 2010-03-23
-------------------------------------------------------------------------------
- bump version
-------------------------------------------------------------------------------
2.08_01 2010-03-22
-------------------------------------------------------------------------------
- CPAN cannot unpack tarball, permission denied; give full control to
Win7 source files before make dist, add noacl to cygwin fstab
-------------------------------------------------------------------------------
2.08 2010-03-21
-------------------------------------------------------------------------------
- Failed t/JumpOpcode.t test 36 in perl 5.11.5, operation "eq": no method found
when comparing two CPU::Z80::Assembler::Line;
convert to string before passing on to is()
-------------------------------------------------------------------------------
2.07 2009-11-12
-------------------------------------------------------------------------------
- One test of t/Preprocessor-include.t failed on localized version of $!
-------------------------------------------------------------------------------
2.06 2009-10-26
-------------------------------------------------------------------------------
- Bump up version number
-------------------------------------------------------------------------------
2.05_06 2009-09-22
-------------------------------------------------------------------------------
- Move back to 5.008, CPAN of 5.006 did not compile, Regexp::Trie requires 5.008
- '$' no longer used as label prefix, to be able to support $FF syntax
- '%' (bin), '$' (hex), '#' (hex) number prefixes
- removed ORG label - does not make sense with several segments
- Rename link() to _locate() : only address location is done; make it private,
called by bytes()
- Remove restriction on ORG - each new org creates a new segment,
gaps between the segments are filled with 0xFF (configurable)
- Change 'JR' to 'JP', and 'DJNZ' to 'DEC B:JP NZ' if distance too far
- Publish AsmTable.pm - usefull for disassembler
-------------------------------------------------------------------------------
2.05_05 2009-08-26
-------------------------------------------------------------------------------
- Fix Parser.pm version
- Remove dead code
- Improve documentation
- Tests failed in Unix due to lack of \r processing
- Compatible with perl 5.006, downgraded requirement from 5.008.
- Error in macro expansion : was eating statement terminator
-------------------------------------------------------------------------------
2.05_04 2009-08-23
-------------------------------------------------------------------------------
- New Stream class - faster than HOP::Stream, because head element is always
available to be read without computation (is_promise() in HOP::Stream) and
no test is needed to distinguish a stream node from a array-ref element
(is_node() in HOP::Stream). The stream has an head element, and a list of
the next elements, which may contain iterators.
- List object uses the input to the assembler to read the lines again during
the listing phase, instead of globing all tokens in memory
- Remove usage of HOP::Stream
- Move the macro processing into the parser - removes one level of stream
processing
- Added the unofficial Z80 opcodes to the test cases
- Benchmark assembly times:
0.337 sjasmplus
2.734 z80masm-2.01
2.738 z80masm-2.05
2.898 z80masm-current
3.555 z80masm-2.05_03
11.342 z80masm-1.03
-------------------------------------------------------------------------------
2.05_03 2009-08-11
-------------------------------------------------------------------------------
- Performance :
- hand-coded contructor and accessor for Line.pm and Token.pm instead
of Class::Struct, because too much time was being spent on Token->new()
- Remove Class.pm : plugin replacement to Class::Class to solve RT #42710
- Remove Node.pm : cannot use inheritance with Class::Struct; define different
modules (Program.pm, Segment.pm, Opcode.pm, Expr.pm) with the same interface
(child contains list of children of this node).
- All test scripts now pass
- Move test scripts data files to t\data
- Move all bechmarking scripts to tools\benchmark
- New List.pm class to handle output of the assembly file listing at the
code generation stage.
- New ParserGenerator.pm class to generate a try-based non-backtracking parser.
Builds a complete state table for the input grammar, where each state is a
map of current-token => next-state, or current-token => accept-rule, or
current-token => call-sub-rule. The input grammar accepts
rule => token token ... [sub-rule] ... action
The sub-rule call accepts optional ('?'), 0 or more ('*') or 1 or more ('+').
The output is the new Parser.pm module with about 7K states and 20K lines
of Perl code --> PERFORMANCE PENALTY.
- Remove ParserTable.pm : whole Parser.pm is now generated by
tools\build_Parser.pl
- Expr.pm parser now checks for the correct syntax. The previous parser just
extracted balanced parentheses.
- Lexer.pm :
- accept db, dw, dt, dm as alias to defb, defw, deft, defm
- remove quotes from STRING token value
- Line.pm : added back is_equal() and is_different()
- Macro.pm :
- return the list of newline tokens parsed inside of a macro
definition back to the stream, so that the assembly listing contains
also these lines.
- replace statement_end() by /[:\n]/ -> performance
- Program.pm, Segment.pm : new org() and add() methods to be called by code
generator.
The lexer is still the performance botleneck, together with the heavy usage
of HOP::Stream.
%Time ExclSec CumulS #Calls sec/call Csec/c Name
43.7 0.500 3.052 71417 0.0000 0.0000 HOP::Stream::tail
33.6 0.385 0.665 98780 0.0000 0.0000 HOP::Stream::head
24.6 0.282 0.466 170197 0.0000 0.0000 HOP::Stream::is_node
22.4 0.257 1.214 17902 0.0000 0.0001 CPU::Z80::Assembler::Lexer::__ANON__
21.3 0.244 0.257 67163 0.0000 0.0000 HOP::Stream::is_promise
20.7 0.237 2.173 34954 0.0000 0.0001 CPU::Z80::Assembler::Macro::__ANON__
20.4 0.234 0.250 9 0.0260 0.0278 CPU::Z80::Assembler::Macro::BEGIN
19.6 0.225 0.225 242140 0.0000 0.0000 UNIVERSAL::isa
18.6 0.213 3.250 71417 0.0000 0.0000 HOP::Stream::drop
-------------------------------------------------------------------------------
2.05_02 2009-04-25
-------------------------------------------------------------------------------
- Line.pm, Token.pm :
- go back to Class::Struct instead of Class::Class (bad performance of the
later)
- do not use "eval(Data::Dump::dump())" for clone - bad performance
- add overload for 'bool' and '0+' - '""' was being used, and is too slow
because it uses Data::Dump::dump() internally
- remomve is_equal() and is_different() methods (Line.pm)
-------------------------------------------------------------------------------
2.05_01 2009-04-23
-------------------------------------------------------------------------------
Add Line, Token classes. No need to create LINE tokens - each token carries the
line number.
Change to single-pass design.
Use Class::Class hierarchy for parsed objects.
Several test scripts fail.
Documentation needs update.
Dead code needs to be removed.
-------------------------------------------------------------------------------
2.05 2009-01-04
-------------------------------------------------------------------------------
Fixed VERSION file - wrong version parsed by CPAN.
-------------------------------------------------------------------------------
2.04 2009-01-04
-------------------------------------------------------------------------------
Added MANIFEST.SKIP. Created VERSION file.
-------------------------------------------------------------------------------
2.03 2009-01-04
-------------------------------------------------------------------------------
Fixed MANIFEST - missing files.
-------------------------------------------------------------------------------
2.02 2009-01-04
-------------------------------------------------------------------------------
Support undocumented Z80 instructions (t/test_z80.asm)
Auto-generate ParserTable.pm and test_z80.asm, cross
check the assembly with the sjasmplus assembler.
Fix documentation and show usage when called without arguments.
Integer out of range is now a warning instead of a fatal error.
"+d" in "(ix+d)" is optional.
-------------------------------------------------------------------------------
2.01 2008-07-13
-------------------------------------------------------------------------------
10-lexer.t and 11-z80pp.t tests failed in Unix.
-------------------------------------------------------------------------------
2.00 2008-07-13
-------------------------------------------------------------------------------
Re-implemented for speed improvement.
Split into three layers - lexical scanner, instructions
parser and code generator.
Added Z80 undocumented instructions.
$ in front of labels is optional, accepts lower case
assembly instructions, improved error messages,
accepts multiple assembly instructions in a line
separated by ':'
-------------------------------------------------------------------------------
1.03 2008-06-25
-------------------------------------------------------------------------------
Bugfixes from Paulo Custodio:
see https://rt.cpan.org/Ticket/Display.html?id=36991
-------------------------------------------------------------------------------
1.02 2008-06-22
-------------------------------------------------------------------------------
Added INCLUDE
Added support for #comments at start of line
(for C pre-processor friendliness)
-------------------------------------------------------------------------------
1.01 2008-06-14
-------------------------------------------------------------------------------
Macro parameters no longer clash with labels
whose names start the same as a parameter.
eg, a param $r no longer clashes with label
$rr
Likewise labels
-------------------------------------------------------------------------------
1.0 2008-06-13
-------------------------------------------------------------------------------
Original release