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Completed the coding of da65's SEGMENT feature.

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Before this commit, we could define segment ranges; but, the disassembler wouldn't do anything with those definitions.  Now, da65 will put ".segment" directives into its output.

Fixed da65's document.
This commit is contained in:
Greg King
2014-11-23 15:29:16 -05:00
parent 5b55fa4500
commit 0ee891c106
10 changed files with 261 additions and 174 deletions
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122
doc/da65.sgml
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@@ -2,12 +2,14 @@
<article>
<title>da65 Users Guide
<author><url url="mailto:uz@cc65.org" name="Ullrich von Bassewitz">
<date>2003-08-08
<author>
<url url="mailto:uz@cc65.org" name="Ullrich von Bassewitz">,<newline>
<url url="mailto:greg.king5@verizon.net" name="Greg King">
<date>2014-11-23
<abstract>
da65 is a 6502/65C02 disassembler that is able to read user supplied
information about its input data for better results. The output is ready for
da65 is a 6502/65C02 disassembler that is able to read user-supplied
information about its input data, for better results. The output is ready for
feeding into ca65, the macro assembler supplied with the cc65 C compiler.
</abstract>
@@ -23,7 +25,7 @@ the cc65 C compiler and generates output that is suitable for the ca65
macro assembler.
Besides generating output for ca65, one of the design goals was that the user
is able to feed additional information about the code into the disassembler
is able to feed additional information about the code into the disassembler,
for improved results. This information may include the location and size of
tables, and their format.
@@ -106,11 +108,16 @@ Here is a description of all the command line options:
<tag><tt>--cpu type</tt></tag>
Set the CPU type. The option takes a parameter, which may be one of
<itemize>
<item>6502
<item>6502x
<item>65sc02
<item>65c02
<item>huc6280
</itemize>
6502, 6502x, 65sc02, 65c02, huc6280
6502x is the NMOS 6502 with illegal opcodes. huc6280 is the CPU of the PC
engine. Support for the 65816 is currently not available.
6502x is for the NMOS 6502 with unofficial opcodes. huc6280 is the CPU of
the PC engine. Support for the 65816 currently is not available.
<label id="option--formfeeds">
@@ -125,7 +132,7 @@ Here is a description of all the command line options:
<tag><tt>-g, --debug-info</tt></tag>
This option adds the <tt/.DEBUGINFO/ command to the output file, so the
assembler will generate debug information when reassembling the generated
assembler will generate debug information when re-assembling the generated
output.
@@ -241,7 +248,7 @@ unsupported.
The disassembler works by creating an attribute map for the whole address
space ($0000 - $FFFF). Initially, all attributes are cleared. Then, an
external info file (if given) is read. Disassembly is done in several passes.
In all passes with the exception of the last one, information about the
In all passes, with the exception of the last one, information about the
disassembled code is gathered and added to the symbol and attribute maps. The
last pass generates output using the information from the maps.
@@ -275,19 +282,19 @@ braces. Attributes have a name followed by a value. The syntax of the value
depends on the type of the attribute. String attributes are places in double
quotes, numeric attributes may be specified as decimal numbers or hexadecimal
with a leading dollar sign. There are also attributes where the attribute
value is a keyword, in this case the keyword is given as is (without quotes or
value is a keyword; in this case, the keyword is given as-is (without quotes or
anything). Each attribute is terminated by a semicolon.
<tscreen><verb>
group-name { attribute1 attribute-value; attribute2 attribute-value; }
group-name { attribute1 attribute-value; attribute2 attribute-value; }
</verb></tscreen>
<sect1>Comments<p>
Comments start with a hash mark (<tt/#/) and extend from the position of
Comments start with a hash mark (<tt/#/); and, extend from the position of
the mark to the end of the current line. Hash marks inside of strings will
of course <em/not/ start a comment.
<em/not/ start a comment, of course.
<sect1>Specifying global options<label id="global-options"><p>
@@ -543,18 +550,17 @@ disassembled code. The following attributes are recognized:
<tag><tt>END</tt></tag>
Followed by a numerical value. Specifies the end address of the segment. The
end address is last the address that is part of the segment.
end address is the last address that is a part of the segment.
<tag><tt>NAME</tt></tag>
The attribute is followed by a string value which gives the name of the
segment.
</descrip>
All attributes are mandatory. Segments may not overlap. Since there is no
explicit "end this segment" pseudo op, the disassembler cannot notify the
assembler that one segment has ended. This may lead to errors if you don't
define your segments carefully. As a rule of thumb, if you're using segments,
your should define segments for all disassembled code.
All attributes are mandatory. Segments must not overlap. The disassembler will
change back to the (default) <tt/.code/ segment after the end of each defined
segment. That might not be what you want. As a rule of thumb, if you're using
segments, you should define segments for all disassembled code.
<sect1>Specifying Assembler Includes<label id="infofile-asminc"><p>
@@ -563,8 +569,8 @@ The <tt/ASMINC/ directive is used to give the names of input files containing
symbol assignments in assembler syntax:
<tscreen><verb>
Name = value
Name := value
Name = value
Name := value
</verb></tscreen>
The usual conventions apply for symbol names. Values may be specified as hex
@@ -613,48 +619,46 @@ directives explained above:
};
# One segment for the whole stuff
SEGMENT { START $E000; END $FFFF; NAME kernal; };
SEGMENT { START $E000; END $FFFF; NAME "kernal"; };
RANGE { START $E612; END $E631; TYPE Code; };
RANGE { START $E632; END $E640; TYPE ByteTable; };
RANGE { START $EA51; END $EA84; TYPE RtsTable; };
RANGE { START $EC6C; END $ECAB; TYPE RtsTable; };
RANGE { START $ED08; END $ED11; TYPE AddrTable; };
RANGE { START $E612; END $E631; TYPE Code; };
RANGE { START $E632; END $E640; TYPE ByteTable; };
RANGE { START $EA51; END $EA84; TYPE RtsTable; };
RANGE { START $EC6C; END $ECAB; TYPE RtsTable; };
RANGE { START $ED08; END $ED11; TYPE AddrTable; };
# Zero page variables
LABEL { NAME "fnadr"; ADDR $90; SIZE 3; };
LABEL { NAME "sal"; ADDR $93; };
LABEL { NAME "sah"; ADDR $94; };
LABEL { NAME "sas"; ADDR $95; };
# Zero-page variables
LABEL { NAME "fnadr"; ADDR $90; SIZE 3; };
LABEL { NAME "sal"; ADDR $93; };
LABEL { NAME "sah"; ADDR $94; };
LABEL { NAME "sas"; ADDR $95; };
# Stack
LABEL { NAME "stack"; ADDR $100; SIZE 255; };
LABEL { NAME "stack"; ADDR $100; SIZE 255; };
# Indirect vectors
LABEL { NAME "cinv"; ADDR $300; SIZE 2; }; # IRQ
LABEL { NAME "cbinv"; ADDR $302; SIZE 2; }; # BRK
LABEL { NAME "nminv"; ADDR $304; SIZE 2; }; # NMI
LABEL { NAME "cinv"; ADDR $300; SIZE 2; }; # IRQ
LABEL { NAME "cbinv"; ADDR $302; SIZE 2; }; # BRK
LABEL { NAME "nminv"; ADDR $304; SIZE 2; }; # NMI
# Jump table at end of kernal ROM
LABEL { NAME "kscrorg"; ADDR $FFED; };
LABEL { NAME "kplot"; ADDR $FFF0; };
LABEL { NAME "kiobase"; ADDR $FFF3; };
LABEL { NAME "kgbye"; ADDR $FFF6; };
LABEL { NAME "kscrorg"; ADDR $FFED; };
LABEL { NAME "kplot"; ADDR $FFF0; };
LABEL { NAME "kiobase"; ADDR $FFF3; };
LABEL { NAME "kgbye"; ADDR $FFF6; };
# Hardware vectors
LABEL { NAME "hanmi"; ADDR $FFFA; };
LABEL { NAME "hares"; ADDR $FFFC; };
LABEL { NAME "hairq"; ADDR $FFFE; };
LABEL { NAME "hanmi"; ADDR $FFFA; };
LABEL { NAME "hares"; ADDR $FFFC; };
LABEL { NAME "hairq"; ADDR $FFFE; };
</verb></tscreen>
<sect>Copyright<p>
da65 (and all cc65 binutils) are (C) Copyright 1998-2007 Ullrich von
Bassewitz. For usage of the binaries and/or sources the following
da65 (and all cc65 binutils) is (C) Copyright 1998-2011, Ullrich von
Bassewitz. For usage of the binaries and/or sources, the following
conditions do apply:
This software is provided 'as-is', without any expressed or implied
@@ -666,20 +670,16 @@ including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
<enum>
<item> The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
<item> Altered source versions must be plainly marked as such, and must not
be misrepresented as being the original software.
<item> This notice may not be removed or altered from any source
distribution.
<item> The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
<item> Altered source versions must be plainly marked as such, and must not
be misrepresented as being the original software.
<item> This notice may not be removed or altered from any source
distribution.
</enum>
</article>