To anyone reading this, Merry (belated) Christmas and Happy New Year!
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Changed valid() method Serializer to an explicit bool() operator,
to function similar to C++ streams.
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bit of data loaded from the file.
Changed Serializer class to unique_ptr, eliminating d'tor.
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lists to the Array class? Completely deleting all that code and
using a std::vector directly :)
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versa (I guess it's useful to test under multiple compilers).
Bumped version # for next test release.
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implementation, and using virtual d'tor only when absolutely necessary.
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break. First thing to do is update the year. Happy new year to anyone
reading these commit logs.
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will be used, but at least we can improve it a little).
Eliminated the 'alignment' dimension in the various TIATables masks,
reducing the size of the arrays by a factor of 4. I could never
figure out what alignment meant, until I looked at old TIA code in
the repo. It seems that originally, there was an optimization
in the code to fill the array on 32-bit boundaries, instead of the
current 8-bit boundary. As a result, the masks had to be defined
as 32-bits, or 4 groups of 8-bits. Ah, that's where the 'alignment'
comes from.
Related to this, the colors and pointers in the TIA class are now
8-bit as well. Essentially, the TIA class has been doing extra
work to align everything to 32-bit and never actually using the
results. And it's been this way for 4+ years.
Older state files will no longer work, so the version # has been
bumped.
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of the RIOT chip. This flag is related to the edge-detect circuitry, and
set on active transition of PA7 pin, cleared upon reading from TIMINT (but
only *after* its result is included in the TIMINT read).
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all aspects of the M6532 chip that a real 2600 console doesn't use.
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display modes wrt both palette and display properties (# of scanlines,
size of window, etc). This means you can now dynamically switch
between these modes at runtime.
Also added 'Shift-Control-f', which cycles through the modes in
reverse order.
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we need to modify what is caught. Ironically enough, this fixes
a bug whereby when certain errors occur, the recovery system
itself would crash, not the issue that actually caused the bug!
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now load and play test ROMs, complete with emulation of timing delays
due to slow accesses on real Harmony hardware. Still TODO is the tunes,
DPC+ stuff, which is stubbed out at this point.
Fixed bug in EFSC bankswitching; state files didn't contain extended RAM
information.
Cleaned up the Serializer API, resulting in slightly faster operation
and smaller state files. Because of this, the state file format
has changed for this release (old state files will no longer work).
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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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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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for these opcodes.
The 'data source' in the debugger CPU area now also shows the SP register,
since it's used for TSX and TXS.
Bumped version # for another test release.
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detection and marking of those areas into the TIA class itself, specifically
at the location of the write. In other words, there's no longer an IF
statement executed for every STx opcode; the marking is done directly
within the write to GRPx or PFx, so extra code is only executed when
actually storing to those locations.
Fixed several cases of opcodes marking an area as CODE when it should have
been DATA.
Added output to the CPU area of the debugger for displaying the source
address for loading data into the A/X/Y registers. Note that these are
only modified when actual addresses are used, so immediate and zero-page
mode will show addresses as zero (meaning that no address was involved
in retrieving the data).
Tweaked console font to better diffentiate the disassembly output between
graphics for players and graphics for the playfield.
Bumped state file format because of changes to M6502. This means old
state files will be broken.
Bumped version # for next test release.
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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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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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these bits were ignored, and treated as high all the time. A recently
reported Stella tracker posting noted that these bits could be
configured by SWBCNT to be input or output, and hence used as 3 extra
bits of storage. This is now enabled. Because of these changes, the
state file format has also changed.
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'Stephen Anthony' (aka, me) in addition to Brad Mott as copyright
holders for Stella. I think I've been with the project long
enough now (almost 10 years) to justify being specifically mentioned
above and beyond 'the Stella Team'.
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Bumped state file header for 3.1 release, indicating that all older
state files will no longer work.
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post-3.0), and reworked how state files are accessed. The cart type
now determines if a state file is valid, meaning developers can use
one state file across multiple builds of their program.
Added 'runtopc' debugger command, and associated UI item in the
RomWidget area. This steps the code until the PC matches the given
value.
Added '16in1' bankswitch scheme, which is useful for ROMs named
'128-in-1' in RomHunter database. Also, all multicart schemes now
show the current ROM onscreen while switching between them.
Fixed bug in Serializer class when accessing files in read-only mode.
Such files would be created and set to zero size, even if only
reading was requested.
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The license file is actually named 'License.txt', not 'license'
The 'Stella Team' has a capital T, not lowercase.
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is related to the currently running ROM. If enabled (the default and current
behaviour), state files that do not match the currently loaded ROM will not
be loaded. Otherwise, the state file will attempt to load. Note that in the
latter case, this will probably cause 'bad things' to happen. It's mostly
for developers who are constantly recompiling a ROM, and wish to use a
previously created state file even when the ROM MD5 changes.
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objects. These actions are tied to the same keys as for toggling the
objects themselves, with the addition of the 'Shift' key. For example,
toggling the P0 object is 'Alt z', and toggling P0 collisions is
'Shift-Alt z'. Note that disabling an object will obviously disable
its collisions as well. Still TODO is work out how these keys map on
OSX; the Shift key is already being used for something else.
Reverted Cosmic Ark 'starfield effect' to match the descriptions
given in the 'Stella 3.0 released' thread on AtariAge. It seems the
system I tested this on has an Svideo mod board that changes the
output from a normal console.
Bumped state file format header, since the TIA internals have changed
again. As well, bumped version # to 3.1_svn.
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debugger disassembly improvements, so it will have to wait until 3.1.
Updated various files for impending 3.0 release.
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starfield effect. More research is required in this area.
Large update to exception handling throughout the codebase. It seems
that in many cases, the correct 'catch' block was never being called.
I never see exceptions thrown very much, so that area doesn't get much
testing. But I guess it's good that Stella doesn't generate many
exceptions :)
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no$26K emulator. Basically, when this is enabled, the COLUP0, COLUP1,
COLUPF and COLUBK registers are locked to hardcoded values. This can
be used to clearly show which registers are drawing which part of the
TIA display. For now, the colours are locked as they're shared on
a real system (so P0 and M0 are locked to the same colour). Future
versions may separate these shared registers for even more clarity.
This functionality is toggled with the 'Alt-Comma' key combo.
Updated the state handler to reject loading state files older than
this version, since the TIA internals have changed. This will be
done each time the TIA code changes from this point on.
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class reworking. Serializer class now handles read/write of state from
files as well as in-memory streams. As a result, Deserializer class has
been removed.
Added state rewinding to the debugger. For now, this is limited to 100
levels of undo, with a new state generated each time a step/trace/frame/
scanline advance is performed. The undo level is 'rolling', in that it
remembers the last 100 levels (so you lose the oldest states when you
start adding more than 100). For now, this is tied to the 'Alt-r' key
in the debugger. Still TODO is add a button for it, and clean up some
TIA output issues when rewinding.
Added support for 6K version of Supercharger ROMs (this fixes issues
with the 6K version of Cubis).
Cleaned up the Serializable infrastructure, making sure that all
classes that need to implement it actually do so now.
Fixed issue with editable widgets in the UI, where pressing Enter
on the keypad wasn't actually being registered.
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stephena