Inv, Neg, etc. buttons on the RAM tab. Also added Undo and Revert buttons
to the RAM tab. Undo undoes your last change only (and does not undo an
undo). Revert reverts RAM to the state it was in when the user entered
the RAM tab. These buttons are disabled when they're not useful.
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about. No use in quitting if the option wouldn't have had any effect
anyway.
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Booleans in "tia" output are now +FOO or -foo (UPPERCASE is set, lower
is clear, plus there's a + or - in front).
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Currently, entering the debugger turns off all the joystick and button
inputs, so we're stuck showing "(no directions)" for the sticks. This
needs a change in EventHandler to fix (assuming it can even be done).
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is in the current number base except the binary graphics data. Audio frequency
is shown both as AUDFx value and frequency in Hz. Boolean flags are now
shown with a prefixed + for true or - for false (e.g. "-delay" for a player
if it's not delayed or "+delay" if it is).
There are still a few TIA internal state values that should be displayed:
delayed graphics data and color clocks at which RESxx was strobed.
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up in the RamWidget. FrameBuffer::advance() now advances all frames and
then returns, instead of setting a flag to advance and then return
immediately (RAM wasn't being updated until the frames where advanced,
but by that point we'd returned from the method).
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CpuWidget automatically gets this support as well.
Still TODO is revamp the loadConfig() method so that updates are only made
when absolutely necessary.
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by making use of the Debugger::ramChanged() method. Still TODO is
actually 'draw' those changes.
Cleaned up Array typedefs, placing them in the Array class. Also
removed StringArray typedef, since there's already a StringList
class that does exactly the same thing.
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per line are displayed. There's room for more, but not for 8... and I
expect each line to contain a power-of-two's worth of bytes for some
reason (I tried 6 bytes/line, it was somehow jarring).
Added bool Debugger::ramChanged(uInt 8 offset) method for the GUI RAM tab
to use.
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light red color).
Inverse video in the PromptWidget is supported, without having to
rewrite any FrameBuffer code.
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any TIA color when drawing lines, characters, etc.
The number of available colors is in GuiUtils::kNumColors, and is currently
set to 262 (256 TIA colors, 6 GUI colors). The enumerated names for the 6
GUI colors are still used; there aren't yet any enumerations for the TIA
colors, so you have to refer to them by index number.
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and become the "mini-language" for conditional breaks/traps.
The current lexer/parser combo benchmarks at 1/2 million parses/sec
on my Athlon 2100. By comparison, Pitfall runs approx. 360,000
instructions/sec. We need to be able to check for a conditional break
once per instruction, so on my box, I'll probably be able to run the
emulator at full speed with one breakcond set, using all the CPU.
Am still working on a way to speed things up: there's no reason we
should have to fully lex and parse an expression every time we want to
evaluate it.
For now, the only place the new parser hooks into Stella is with an
undocumented "expr" command. Try "expr 2+2" at the prompt.
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one tab would temporarily draw a widget from the previously selected tab.
Added 'Alt-f' shortcut for 'Frame+1" in the debugger. Removed that key
from toggling filtering, as it only worked for OpenGL mode anyway (and
filtering is due for a huge rework in a future version of Stella).
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doesn't really need to know about it, and it belongs to the debugger anyway.
Fixed some makefile issues:
Pure C programs were being compiled with 'cc', when 'g++' (or equivalent)
should have been used.
Only pre-define the compiler flags to include '-O2' if the user doesn't
have a CXXFLAGS env variable set. Sometimes I want to use '-g', and in
that case I want to override the internal '-O2'.
Fixed TIASound code to not use its own type definitions, and instead use
the ones from bspf.hxx. Eliminates requirement of specifying -DWIN32,
even when the host system wasn't Win32.
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(indirect),y addressing modes.
Added scanline and frame counters to prompt. They're showing the wrong
values during stepping right now :(
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occurs once per frame, as long as the backspace key is held down
(previously it happened once per keypress only). Haven't decided
whether this is an improvement or not, need more testing
Also, added missing -O2 to new Makefile.
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I've only tested it in 32bit Linux, but I don't forsee any problems.
Dependencies seem to work correctly, recompiling parts of the codebase
as necessary.
New files added to the codebase must be listed in the 'module.mk' file
in the same directory where the new file is placed. Other then that,
no configuration is required.
All configurable options are by default enabled. They can be manually
disabled by an appropriate command to the configure script, but the
script is smart enough to test for the required libraries and disable
support when one isn't found.
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adapted from the ScummVM build process, and isn't as big and nasty as
full autoconf support.
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justHitTrap flag wasn't getting reset after a trap was hit.
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should also be selectable from the GUI. They might also need to include
more controls, but these seems to be the ones that cause interesting
effects: -holdreset gives you double shots in space invaders,
-holdbutton0 gives you "the dot" in carnival.
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as the regular emulator F9 and F11 save/load state. Will add the debugger
state to the statefile in future.
"Frying" support, using Fred Quimby's code from [stella]. Press Backspace
during emulation (or slam it repeatedly like you would the power button
on a real 2600). So far I've been able to duplicate the classic frying
effects from Space Invaders (double shots) and H.E.R.O. (infinite lives).
Also added a "fry" command to the debugger, but it's not very useful
(you need visual feedback when trying to duplicate a known effect,
so the emulator should be running).
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Support patching ROM in almost all cart types.
The ones that aren't supported are going to take a bit more thought.
Still TODO is to support the extra RAM in carts that have it.
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but we can now change ROM from the debugger on a good chunk of the games
out there.
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like the "ram" command. Each Cart type needs its own patch() method to
allow changing ROM. So far, only Cart4K has a working patch() method:
all other cart types inherit Cartridge::patch(), which does nothing and
returns false.
TODO: saverom command?
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Unfortunately every single Cart class will have to be touched to make
this work, and there are 20 of them. Currently only CartF8 has the
necessary methods.
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a lot better now. There shouldn't be any more crashes due to missing
error checking, as the error checking is done by the parser now, instead
of by each command (so I can't forget it now). Also, now that the commands
are stored in an array, I can start on tab-completion for commands.
TODO: validate multi-byte arguments (e.g. the data for the "ram" command).
Currently the command works, but will accept values that don't fit into
a byte. Also validate multi-word arguments, though we don't have any
commands that use them yet.
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compiling to fail. Since ZIP support was added, we always need to link
to the zlib library, not just when we want snapshot support.
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that had WIDGET_TAB_NAVIGATE set (which is exactly the opposite of
what we want).
Added a dashed line to FrameBuffer::frameRect(). This is currently
used to indicate which widget is selected in debugger mode. IMO, it
looks much better than using a solid line.
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One more tab completion fix: made it work when the character before the
label wasn't a space (e.g. "pr *w" now completes to "pr *WSYNC")
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name, description, argument count & types, and a method pointer to
actually execute the command. Instance method pointers in C++ are even
more annoying that function pointers in C...
The actual parser (the run() and getArgs()) methods don't use the new
stuff, so the actual operation of the debugger is unchanged.
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Also, minimum length command line to attempt label completion is now 2.
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have labels "food" and "foobar", and no others starting with "f", and you
type "pr f<TAB>", it will show you both of them, then leave your prompt
looking like "pr foo" with the cursor after the 2nd "o".
Differences from bash:
- In case of multiple completions, bash's default behaviour requires you
to press Tab twice to see them. We only need one Tab. bash can actually
be configured to only need one Tab, too.
- We don't beep. Ever.
- We're case-insensitive. bash is case-sensitive by default, though it
can be configured to be insensitive.
There's one remaining bug in the completion: when we get to the bottom of
the scroll buffer, and the buffer is full (e.g. when the scroll bar handle
is at its minimum size), *and* there's only one possible completion, the
console prints a new blank line after the new (completed) prompt.
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DebuggerParser flag-setting commands now take one optional argument, to
support the above.
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urchlay