Added option to save snapshots using either internal database name
(the default) or actual ROM filename.
Extended FSNode API for parsing filenames and adding/removing extensions,
which was previously being done in different ways throughout the codebase.
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This will eventually grow to include all relevant options in Distella.
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selection widget to a display of current bank state, taking into
account the more esoteric bank schemes. Currently, some functionality
is disabled/removed for now; I'll work on this for the next commit.
The format for displaying disassembler GFX/PGFX (binary or hex) is now
obeyed in the disassembly file output as well.
Changed various comments/enums/etc referring to 'preliminary' code to
'tentative' code, matching the actual intended meaning and the current
documentation.
Small API change for EditTextWidget; changed method name to setText, since
that's what I keep typing for some reason.
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initial pass of the disassembler. This was required in certain cases,
notably when issuing 'savedis' when the code was currently running from
zero-page.
Fixed missed labels for zero-page RAM when running ZP code.
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to an external file.
- RIOT/TIA mirrors are now used whenever possible. This includes *all*
possible mirrors in the entire 64K address space. This was needed to
make the disassembly byte-exact when recompiling the ROM.
- Disassembly to a file now includes all required defined constants
(RIOT/TIA, non-locatable labels, user-defined, etc).
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listconfig command are now synchronized, and produce the same output.
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for single-bank ROMs, same as disassembly (since the underlying framework
has been modified). Second, it now actually works :) I can't see how it
worked before, and since I didn't get any complaints/reports, I really have
to question how much use this code actually gets.
Still TODO is fix errors in CODE vs. PCODE (preliminary code) (in
the Distella code, we should clearly mark the difference).
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For now (and the next release), filenames are hardcoded to sane defaults.
Eventually, the code may be extended to use BrowserDialog to query the names,
but it's taking much too long to get working, and I want to get a new release
done before the end of May.
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The remainder of this commit is basically some cleanup of the
Widget API, and infrastructure fixes to allow CartDebugWidgets to
have change tracking.
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the saved disassembly to be compiled to the exact same binary.
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out-of-range labels for cases where a label is in the middle of a
multi-byte instruction (Kool Aid Man), and properly indicates
mirrors of TIA read/write addresses (Meltdown).
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- Removed 'SKIP' directive, since it wasn't implemented anyway, and
I see no way to implement it
- Add 'aflag' setting to diassembly output, matching usage in Distella.
This is needed for diassembly output, otherwise DASM barfs on the code.
- Fixed several long-standing bugs in Distella disassembly wrt ROW
directives and labeling. Previously, the output you see in the debugger
wasn't completely correct, since it wasn't compiling properly in DASM.
- Illegal opcodes are now shown as .byte directives; this allows the code
to compile in DASM.
- Print 16 bytes per line in .byte directive in external disassembly,
same as Distella.
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DiStella works, so you don't have to include a vcs.h file.
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working quite well for a single-bank ROM, but more work is required for
multi-bank. Output is currently sent to the console, as I'm still in
the formatting phase. Saving to a file will be easy once the format
is nailed down.
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Distella '-r' option (Relocate calls out of address range) to
the disassembler core. Also added UI item to dynamically
change the setting.
Renamed 'resolvedata', 'showaddr' and 'gfxformat' commandline
arguments to start with 'dis', indicating that they're part
of the disassembler.
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option was set, which normally isn't when disassembling standalone
ROMs. As such, the disassembly didn't match standard Distella output.
The 'fflag' and 'rflag' options from Distella have therefore been
integrated, but they're not configurable at this point (hardcoded
to true and false, respectively).
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cases, these archives contain directories named '__MACOSX' which
contain link files that were being erroneously detected as actual
ROMs.
Added FilesystemNode::isFile() method, and updated several places
in the code to use it. Previously, determining whether something
was a file was simply testing if it wasn't a directory, but this
logic isn't always valid (it's possible to be neither a regular
file *nor* a directory).
Bumped version # for RC release. It's getting very close ...
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available, which helps with constant resizes of arrays with a large number
of push_backs. For now, only the ROM launcher and debugger disassembly
really needs it.
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these logs!
Moved TODO and Credits info directly to the webpage, where it will hopefully
be easier to maintain.
Fixed 'crackling' sound when loading a new ROM, introduced with the 3.5
sound restructuring. It looks like stale data was being loaded by the
sound processing callback. As well, moved the computation of certain
division variables from the sound callback to the framerate re-calculator
(where it's recomputed 1/5 of the time or less).
Updated AboutDialog with info about Stella DonationWare status, and active
members of Stella development.
Updated OSX in-app HTML documentation about Stella DonationWare status.
Bumped version # to 3.5.1_svn, and the process starts again.
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BSPF_snprintf instead, which should eliminate any potential
buffer overflows. Also moved from static arrays to stringstreams
where appropriate to make things safer and more C++ like.
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Blargg NTSC filtering, but we need to revert to base functionality first.
Cleaned up the debugger API wrt converting values from integers to strings
(and vice-versa). There is now only one method for each of these functions,
rather than several ways to do so. In the process, convert from unsafe
sprintf functions into snprintf (eliminate potential buffer overflows).
The debugger 'print' command now indicates if any assigned label represents
a read-only location (R), a write-only location (W), or a read/write location
(R/W).
Fixed bug in DataGridWidgets (used in debugger ROM and CPU registers), where
scrolling the mouse-wheel would cause a segfault. Scrolling the mousewheel
now changes these items as expected.
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The debugger 'saverom' command now uses absolute filenames, and by default
will save data in the users home directory if a proper path isn't included
in the filename. This fixes a major bug where ROMs were being saved to
the current or application directory, which in some cases were invalid
locations.
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Updated documentation with info about 2600-daptor, including
usage and its creator. Also included more in-depth explanation
for the various controller types.
Errors from the Thumb ARM emulation code are now caught as exceptions,
and thrown to the parent class instead of calling exit() and simply
crashing Stella. For now, the messages are simply printed and
emulation continues. This will be expanded to show a detailed crash
log in the debugger, and offer the option to exit the ROM.
Removed most of the menus from the OSX port. They weren't being
maintained anyway, and most of them didn't work. I've modelled this
on the way other cross-platform OSX programs work (notably, ScummVM).
Basically, there are menus for exit and help, but otherwise you
should use the menuing system in the application itself.
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multiple concatentation of strings. This should be faster, or at least
lead to less string constructor calls.
Output of 'ROW' directives in the disassembly now shows only 8 items per
line, instead of 16. This allows to see all the bytes without having a
'...' in between. A future release may customize this to the size of the
output area.
Fixed output from debugger 'disasm' command to properly align different
directive types and show GFX and PGFX output.
Bumped state file version to 3.3 final, since there are no further
changes to the code that will break the file format.
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Removed reference to disassembly 'SKIP' command, since it isn't implemented
yet.
Decided on Nov. 15 for the 3.3 release date, and updated all relevant files.
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disassembly. This allows the debugger 'jump' command to be more accurate.
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emulation core, and distella). This allows to better see exactly how an
address is marked in the disassembly.
Updated Changelog with changes I forgot that I made (you know it's time
for a new release when you forget what's been added since the last one).
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to use curly braces {} instead of apostrophes. This matches the
functionality from older releases.
Fixed debugger prompt messages to show correct info when opening
various files (config files, autoexec, etc).
The debugger 'type' command now accepts a range of values.
Reverted handling of ROMs that aren't in the internal database;
they're inserted with their extension again, just as in older
releases.
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to the emulation core. That is, if something is determined to be CODE in
Distella and *not* in the emulation core, then it shouldn't be marked as such.
Note that the disassembly will still show it as CODE; it's just that the core
will not. This fixes issues with manually specifying directives from the
debugger prompt, whereby setting a directive and later turning it off never
actually turns it off (as it was being permanently set).
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the various header files. Basically, I'm following advice from
Effective C++, and including only what's absolutely necessary. For
definitions that don't need to be included, the designation 'class xxx'
is used instead. This could potentially lead to faster compile times.
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realized that not all things that are referenced are actually data; code can be
referenced too.
Implemented handling of 'DATA' directive. This is very similar to 'GFX',
except X's are not shown for the bits, and the disassembled bytes are always
in hex. For now, it can only be activated manually with a cfg command.
Its real value will become apparent once the emulation tracks when
addresses are actually accessed, differentiating from addresses that are
never referenced (ie, 'ROW'). This will fix the current deficiency in
modifying DATA values (it can't be done, since they're packed into 16 bytes per
line and not changable).
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in general) into the emulation core. For now, this means integrating the
directive names into CartDebug, and having Distella using those same names.
The new directive names were determined by discussion with Omegamatrix on
AtariAge, and are listed in order of decreasing hierarchy:
SKIP (the 'bit' trick to skip over sections of code)
CODE (addresses accessible to the program counter)
GFX (addresses where data is loaded into TIA GRPx registers)
DATA (addresses referenced somewhere in the ROM)
ROW (addresses never referenced at all)
The next TODO item is to have the 6502 core set these values during emulation.
This is currently (crudely) done with a true/false setting in System::peek,
where true corresponds to CODE. This will be extended, so that false
corresponds to DATA. Eventually GFX will also be detected, by watching writes
to the TIA GRPx registers. Still to work out is how to detect SKIP sections.
Anything not marked with one of the above directives will be marked as ROW,
which essentially means ROM space that is never used. This will have the
nice side effect of detecting dead ROM space, potentially leading to space
optimizations.
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disassembly listing) to show/hide opcode/instruction addresses.
The disassembler now includes hints from current PC location *and* 'code
access points' from the emulation core. Testing has shown that some ROMs
don't show completely accurate disassembled output unless both options are
used.
Updated most of the remaining bankswitch schemes to use the new 'code access
points' functionality during disassembly, allowing for very accurate
disassembled output. Note that the more esoteric schemes (AR, 4A50, FE, MC)
are supported for now.
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addresses used as part of code execution (ie, from the PC) during emulation.
This gives Distella much more information than can be determined from a
static analysis alone, resulting in an extremely accurate disassembly.
This also allows to generate very accurate debugger .cfg files.
Not all carts have been ported to this new scheme yet, particularly ones
having extended RAM that can be mapped out dynamically.
Note that this new scheme doubles the amount of RAM used for storing ROM
images, so up to 128KB extra will be used. There's also a small runtime
check for each instruction executed. Preliminary testing doesn't show
any slowdowns, but we'll see how it goes.
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used the current directory.
Fixed error in generating directive lists; there sometimes were 'holes'
at the boundary of CODE <=> DATA transitions.
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directives associated with a given bank (or all banks). Sometimes the
directives are so borked that's it's easier to remove them all at once.
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database, it now has its extension removed (.bin, .a26, etc).
Symbol and config files are now loaded when the debugger is first entered,
not when the ROM is actually loaded. This speeds up ROM loading, since
the user may never need to access these file (ie, they may never enter the
debugger).
The debugger 'loadconfig' and 'saveconfig' commands are now implemented.
Bumped version # for next test release.
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Basically, directories are now guaranteed to always end in the path
separator. Ensuring this makes certain sections of code work faster,
and guaranteeing it allows higher layers of code to not worry about it.
Added 'cfgdir' commandline argument, to specify the default directory
for Distella-like Stella-compatible config files.
Implemented 'loadconfig' debugger prompt command. It's currently
working great with several test config files provided by Omega of
AtariAge.
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mouse button context menu in the disassembly listing. This is used to
set the default display format for GFX data sections (currently, binary
and hex are supported).
Fixed bug in several debugger input areas to accept the '\' symbol.
This symbol is needed when entering data in binary format (it must
prefix the data if the default base for that field isn't binary).
Added 'jump' debugger prompt command, used to scroll the disassembly
to the given address (or there-abouts, if the address isn't valid).
Editing data in the disassembly now won't cause the display to jump to
the current PC. The display will only move to the PC when it actually
changes.
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stephena