Code generated by one of the C compilers sets up the stack frame and
then maps the direct page on top of it. If the value at the top of
the stack is 16 bits, it will be referenced via address $ff. The
local variable editor was regarding this as illegal, because lvars are
currently only defined for direct page data, and the value doesn't
entirely fit there (unless you're doing an indirect JMP on an NMOS
6502, in which case it wraps around to $00... but let's ignore that).
The actual max width of a local variable is 257 because of the
possibility of a 16-bit access at $ff.
Older versions of SourceGen don't seem to have an issue when they
encounter this situation, as worrying about (start+width) is really
just an editor affectation. The access itself is still a direct-page
operation. You won't be able to edit the entry without reducing the
length, but otherwise everything works. I don't think there's a need
to bump the file version.
If you changed the width of a column, and then clicked the "toggle
display of cycle counts" button in the toolbar, the column width
would revert. The problem appears unique to that toolbar button,
so for now the fix is localized there. The more general fix is to
ensure that column width changes don't get stomped, but that's a
larger change.
Variables, types, and comments have been updated to reflect the new
naming scheme.
The project file serialization code is untouched, because the data
is output as serialized enumerated values. Adding a string conversion
layer didn't seem worthwhile.
No changes in behavior.
(issue #89)
Before:
Hint As Code Entry Point
Hint As Data Start
Hint As Inline Data
Remove Hints
After:
Tag Address As Code Start Point
Tag Address As Code Stop Point
Tag Bytes As Inline Data
Remove Analyzer Tags
The goal is to reduce confusion. The old nomenclature was causing
problems because it's inaccurate -- they're directives, not hints --
and made it look like you need to mark data items explicitly. The
new action names emphasize the idea that you should be tagging a
single address for start/stop, not blanketing a region.
This change updates the user interface, manual, and tutorials, but
does not change how the items are referred to in code, and does not
change how the program works.
(issue #89)
Modified the asm source generators and on-screen display to show the
DP arg for BBR/BBS as hex. The instructions are otherwise treated
as relative branches, e.g. the DP arg doesn't get factored into the
cross-reference table.
ACME/cc65 put the bit number in the mnemonic, 64tass wants it to be
in the first argument, and Merlin32 wants nothing to do with any of
this because it's incompatible with the 65816.
Added an "all ops" test for W65C02.
We were claiming W65C02S, but it turns out that CPU has the Rockwell
extensions and the STP/WAI instructions. We need to change existing
references to be "WDC 65C02", and add a new CPU definition for the
actual W65C02S chip.
This adds the new CPU definition, the instruction definitions for
the Rockwell extensions, and updates the selectors in project properties
and the instruction chart tool.
This change shouldn't affect any existing projects. Still more to do
before W65C02 works though, mostly because the Rockwell instructions
introduced a new two-argument address mode that has to be handled in
various places.
Sometimes you just want to turn cycle counts on for a bit, and going
through app settings is tiresome. Now there's a toolbar checkbox
for it. The icon isn't ideal, but it'll do.
When editing local variables, the data grid generally has the input
focus, so hitting Enter doesn't close the dialog. Rather than play
games with the focus, just take Ctrl+Enter as a shortcut to close
the dialog (same as notes and long comments).
(I found myself hitting Ctrl+Enter automatically, and being annoyed
when it didn't work, so I figured I'd make it official.)
The "show cycle counts in comments" setting is the only one that
affects both the on-screen display and generated source code. This
felt a little weird, so it's now two independent settings. This
also provided an opportunity to move it to the initial tab, so it's
easier to toggle on and off. Overall it feels less confusing to have
two settings for essentially the same thing, because code generation
is distinct from everything else.
The "spaces between bytes" setting was moved to the Display Format
tab, which seems a better fit.
Documentation and tutorial have been updated.
Also did a little bit of cleanup in EditAppSettings.
This experimental feature applied platform symbols to the project,
setting labels where the platform symbol's address matched an internal
address. The feature now applies project symbols as well, and has
been renamed to "apply external symbols".
We now report the number of labels set.
Long operands, such as strings and bulk data, can span multiple lines.
SourceGen wraps them at 64 characters, which is fine for assembly
output but occasionally annoying on screen: if the operand column is
wide enough to show the entire value, the comment column is pushed
pretty far to the right.
This change makes the width configurable, as 32/48/64 characters,
with a pop-up in app settings.
The assemblers are all wired to 64 characters, though we could make
this configurable as well with an assembler-specific setting.
Some things have moved around a bit in app settings. The Asm Config
tab now comes last. Having it sandwiched in the middle of tabs that
altered the on-screen display didn't make much sense. The Display
Format is now explicitly for opcodes and operands, and is split into
two columns. The left column is managed by the "quick set" feature,
the right column is independent.
Another chapter in the never-ending AppDomain security saga.
If a computer goes to sleep while SourceGen is running with a project
open, life gets confusing when the system wakes up. The keep-alive
timer fires and a ping is sent to the remote AppDomain, successfully.
At the same time, the lease expires on the remote side, and the objects
are discarded (apparently without bothering to query the ILease object).
This failure mode is 100% repeatable.
Since we can't prevent sandbox objects from disappearing, we have to
detect and recover from the problem. Fortunately we don't keep any
necessary state on the plugin side, so we can just tear the whole
thing down and recreate it.
The various methods in ScriptManager now do a "health check" before
making calls into the plugin AppDomain. If the ping attempt fails,
the AppDomain is "rebooted" by destroying it and creating a new one,
reloading all plugins that were in there before. The plugin binaries
*should* still be in the PluginDllCache directory since the ping failure
was due to objects being discarded, not AppDomain shutdown, and Windows
doesn't let you mess with files that hold executable code.
A new "reboot security sandbox" option has been added to the DEBUG
menu to facilitate testing.
The PluginManager's Ping() method gets called more often, but not to
the extent that performance will be affected.
This change also adds a finalizer to DisasmProject, since we're relying
on it to shut down the ScriptManager, and it's relying on callers to
invoke its cleanup function. The finalizer throws an assertion if the
cleanup function doesn't get called.
(Issue #82)
Changed "Use Keep-Alive Hack" to "Disable Keep-Alive Hack" to emphasize
that it defaults to enabled. Added a menu item for "Disable Security
Sandbox". Added a warning to both that tells the user that they must
reopen the current project for the change to take effect.
Note neither of these is persisted in app settings.
When formatting a table of 16-bit addresses in 65816 code, the bank
byte was always being set to zero. However, for "JMP (addr,X)", the
program bank is used. We now default to that behavior.
The choice can be overridden as before (select 24-bit addresses with a
constant value for the bank byte).
The old values were pretty optimistic in terms of the length of labels.
Short labels in all caps are very retro but sort of annoying to read,
so most disassemblies use longer ones. The new defaults are more
accommodating for the way labels are actually used.
This is still an "experimental" feature, but it's getting expanded
a bit. The implementation now lives in its own class. An "export"
feature that generates SGEC data has been added. The file extension
has been changed from ".sgec" to ".txt" to make it simpler to edit
under Windows.
Implemented "smart" PLB handling. If we see PHK/PLB, or 8-bit
LDA imm/PHA/PLB, we create a data bank change item. The feature
can be disabled with a project property.
Added a "fake" assembler pseudo-op for DBR changes. Display entries
in line list.
Added entry to double-click handler so that you can double-click on
a PLB instruction operand to open the data bank editor.
Changed basic data item from an "extended enum" to a class, so we can
keep track of where things come from (useful for the display list).
Finished edit dialog. Added serialization to project file.
On the 65816, 16-bit data access instructions (e.g. LDA abs) are
expanded to 24 bits by merging in the Data Bank Register (B). The
value of the register is difficult to determine via static analysis,
so we need a way to annotate the disassembly with the correct value.
Without this, the mapping of address to file offset will sometimes
be incorrect.
This change adds the basic data structures and "fixup" function, a
functional but incomplete editor, and source for a new test case.
This was a relatively lightweight change to confirm the usefulness
of relocation data. The results were very positive.
The relatively superficial integration of the data into the data
analysis process causes some problems, e.g. the cross-reference table
entries show an offset because the code analyzer's computed operand
offset doesn't match the value of the label. The feature should be
considered experimental
The feature can be enabled or disabled with a project property. The
results were sufficiently useful and non-annoying to make the setting
enabled by default.
The handful of 6502-based Atari coin-op systems were very different
from each other, so having a dedicated entry doesn't make sense.
Also, enable word-wrap in the New Project text box that holds the
system description.
Changed bank-start comments to notes, added a summary to the top-of-file
comment.
Also, fixed a bug where the app settings dialog wasn't identifying
display settings as a preset for 64tass and cc65.
It's nice to be able to save images from the visualization editor
for display elsewhere. This can be done during HTML export, but
that's inconvenient when you just want one image, and doesn't allow
the output size to be specified.
This change adds an Export button to the Edit Visualization dialog.
The current bitmap, wireframe, or wireframe animation can be saved
to a GIF image. A handful of sizes can be selected from a pop-up
menu.
If you double-click on the opcode of an instruction whose operand is
an address or equate, the selection jumps to that address. This
feature is now available in the Navigate menu, with the keyboard
shortcut Ctrl+J.
While testing the feature I noticed that the keyboard focus wasn't
following the selection, so if you jumped to an address and then
used the up/down arrows, you jumped back to the previous location.
(This was true when double-clicking an opcode to jump; it was just
less noticeable since the next action was likely mouse-based.) This
has been fixed by updating the ListView item focus when we jump to a
new location.
See also issue #63 and issue #72.
Some tests were duplicated between VisWireframe and the code that
consumed the data. We now expose the Validate function as a public
interface, and invoke it from WireframeObject. Failed validation
results in a null object being returned, which was previously allowed
but not actually checked for.
If you double-click a project symbol declaration, the symbol editor
opens. I found that I was double-clicking on the comment field and
typing with the expectation that the comment would be updated, but
it was actually setting the initial focus to the label field.
With this change the symbol editor will focus the label, value, or
comment field based on which column was double-clicked.
The behavior for Actions > Edit Project Symbol and other paths to the
symbol editor are unchanged.
Also, disabled a wayward assert.
SourceGen Edit Commands is a feature that allows you to generate
commands into a file and have SourceGen apply them to the current
project. I'm not expecting this to be used by anyone but me, so
for now I'm just adding an entry to the debug menu that can read
comments out of a file.
Also, fixed a bug in the re-centering min/max code that prevented
it from working on trivial shapes.
Also, renamed the atari-avg visualizer to atari-avg-bz, with the
expectation that one day somebody might want to create a variant
for newer games.
This converts AVG commands to wireframes. We don't try to track
color or intensity. (This is a disassembler, not a graphics
converter; perfection is not required.) The various rotation and
animation options are still enabled, though they're not terribly
useful for this.
Commands that are meant to be used in series, such as font glyphs,
tend to use (0,0) as their left edge and baseline. This puts the
shape in the upper-right corner of the thumbnail, which makes
everything smaller. The change adds a "re-center" option to the
wireframe renderer that computes the visible bounds and adjusts
the coordinates so that the center of the object is at (0,0) for
display.
- Freeze Note brushes, so HTML export doesn't blow up when it tries
to access them.
- Add Ctrl+Shift+E as keyboard shortcut for File > Export.
- For code/data percentage, count inline data as data.
- Tweak code/data percentage text.
- Document Merlin32 '{' bug.
- Tweak tutorial text.
Experimented with different orders of rotation for wireframe viewer.
Made perspective projection the default behavior. Removed animation
parameters from the stored Visualization when it's not animated.
The visualization editor uses the parameters from the most recent
edit as the defaults when creating a new visualization. This change
extends the behavior to the view controls for wireframes.
Also, tweak the perspective projection scaling to fill out the area
a bit more, and change the visualization editor to use the grid's
size when setting the path dimensions.
Also, note gimbal lock.
Remember how object references from plugins are proxy objects that
time out if you don't access them for a while? I didn't either.
This reshuffles the code to keep WireframeObject references rather
than IVisualizationWireframe.
Handle the remaining visualization editor UI controls, except for
the "test" button. Save/restore wireframe animations in the
project file. Changed the preview from a 1-pixel-wide line drawn
by a path half the window size to a 2-pixel-wide line drawn by a
path the exact window size.
Moved X/Y/Z rotation out of the plugin, since it has nothing to do
with the plugin at all. (Backface removal and perspective projection
are somewhat based on the data contents, as is the choice for
whether or not they should be options.)
Added sliders for X/Y/Z rotation. Much more fun that way.
Renamed VisualizationAnimation to VisBitmapAnimation, as we're not
going to use it for wireframe animation. Created a new class to
hold wireframe animation data, which is really just a reference to
the IVisualizationWireframe so we can generate an animated GIF
without having to pry open the plugin again.
Renamed the "frame-delay-msec" parameter, which should start with
an underscore to ensure it doesn't clash with plugin parameters.
If we don't find it with an underscore we check again without for
backward compatibility.
We extract the data from the wireframe visualization, perform a
trivial transform, and display it. The perspective vs.
orthographic flag in the parameters is respected. (No rotation or
backface removal yet.)
Also, increased the thumbnail sizes in the visualization set editor
list from 48x48 to 64x64, because the nearest-pixel-scaled 48x48
looks nasty when used for wireframes.
