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