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Commit Graph

212 Commits

Author SHA1 Message Date
Andy McFadden
cd937709fa Tweak address region edit dialog
Altered the address region edit UI a little to improve clarity.

Also, close the hex dump viewer window when Escape is hit.  (The
tool windows don't have "cancel" buttons, so the key has to be
handled explicitly.)
2021-10-20 09:06:53 -07:00
Andy McFadden
0fb0b4cca8 Fix some address region issues
Fixed a crash when the listing is refreshed while a .adrend line is
the only thing selected.

Fixed .adrend lines being spammed if the last thing before it is a
multi-byte item, and you edit a comment / note / label on that line.
Harmless, but weird.

Also, added keyboard shortcuts in DefSymbol editor, so you can change
from address to constant with Alt+C.
2021-10-17 18:02:29 -07:00
Andy McFadden
d7dbd8d012 Minor tweak to instruction operand editor
If you put a value in the "symbol" field of an instruction with an
address operand, you're establishing a symbolic reference to a label
that may be at a different address than the numeric value of the
operand.  But if you then hit the "edit label" button, you'll edit
the label at the *numeric* reference address, which can be confusing.
We now disable the create/edit label button when the format has been
set to "symbol".

The button is just a short-cut, so disabling it doesn't prevent the
user from doing anything.
2021-10-16 14:46:13 -07:00
Andy McFadden
adf5726f62 Add daily tips to start screen
The initial screen is largely blank, with just the four large buttons
for new/open/recent1/recent2.  It now also has a "tip of the day" box,
with text and an optional image.

The tips and images are kept in the RuntimeData directory.  They're
small enough that they could have been baked into the binary, but
there's enough other stuff going on there that it didn't seem
necessary.  Also, if the tips annoy you, removing the tips file will
hide the tip UI.

The index of the tip shown is based on the day of the year, modulo
the number of defined tips.  So it will be different every day (with
a bit of hand-waving at the end of the year).
2021-10-16 09:15:28 -07:00
Andy McFadden
2008558870 Add "quick set" menu to delimiter settings tab
Added a pop-up menu with three options: default (curly quotes),
straight, and Merlin.  Removed the "reset to defaults" buttons.

Also, slightly rearranged the Display Format tab so that the quick
set pop-up is on the left, near the items it affects.  Moved the
"use comma-separated format for bulk data" checkbox over as well,
since it's part of the set.
2021-10-15 10:01:14 -07:00
Andy McFadden
cb114be0f6 Add "uninitialized data" format type
This allows regions that hold variable storage to be marked as data
that is initialized by the program before it is used.  Previously
the choices were to treat it as bulk data (initialized) or junk
(totally unused), neither of which are correct.

This is functionally equivalent to "junk" as far as source code
generation is concerned (though it doesn't have to be).

For the code/data/junk counter, uninitialized data is counted as
junk, because it technically does not need to be part of the binary.
2021-10-13 15:05:07 -07:00
Andy McFadden
09eba228dd Add "remove formatting" action
This action removes operand formatting from all code and data in the
selected range.  In most cases this is equivalent to simply editing
the various items and clicking the "default" format radio button,
but the feature can be used to remove data formats that end up inside
multi-byte instructions.  Instructions with such formats cause warnings
and were tricky to fix.

Labels embedded in multi-byte items are also tricky to remove, so this
clears those as well.  It does not remove visible labels.  This is
done in a single pass, which means that labels that would become visible
after the formatting is cleared will still be removed.

Also, fix inclusion of address range end lines when restoring the
selection.  Their peculiar nature -- being associated with the offset
of the last byte of multi-byte items -- was interfering with the
selection save code.  This does not add them to the selection when
an address region deletion is undone, since technically they weren't
part of the selection.

Also, moved Edit Note higher in the Actions menu.
2021-10-12 13:04:34 -07:00
Andy McFadden
6df29e562f Various tweaks
Changed the code that generates cross-references for pre-labels to
ignore labels in regions with non-addressable parents.  Also, changed
the code that complains about references to labels in non-addressable
areas to ignore pre-labels, because it was complaining about references
to pre-labels on region starts that were followed by a non-addressable
region start.

In the address region edit dialog, split up the descriptive text for
the "resize" option to make it easier to see the new end offset and
length.  It doesn't look quite right because it's not using the mono
font like the text near the top, but it'll do.

When multiple lines are selected, the Info window now shows the first
line/offset, last line/offset, and bytes spanned by the selection.
This is helpful if you're trying to figure out how big something is.
2021-10-11 14:44:44 -07:00
Andy McFadden
0ac0686c7a ORG rework, part 9
Modified "jump to" code to understand address range start/end lines.
If there are multiple starts or ends at the same offset, we jump to
the first one in the set, which is suboptimal but simpler to do.
Simplified the API, embedding GoToMode in the Location object (which
is where it really needs to be, to make fwd/back work right).

Updated HTML export to grey out addresses in NON_ADDR sections.

Changed default pseudo-op strings for address regions to ".addrs" and
".adrend", after trying a bunch of things that were worse.  Added
definitions for region-end pseudo-ops to Merlin32 and cc65 for display
on screen.

Added regression test 20260 for address region pre-labels.

Fixed handling of leading underscores in platform/project symbols.
These need to be escaped in 64tass output.  Updated regression test
20170-external-symbols to check it.
2021-10-07 12:39:30 -07:00
Andy McFadden
d2326c389f ORG rework, part 8
Implemented address region pre-labels.  These are useful if the code is
relocating a block from address A to address B, because the code that
does the copying refers to both the "before" address and the "after"
address.  Previously you'd give the block the "after" address and the
"before" would just appears as hex, because it's effectively an
external address.

Pre-labels are shown on screen with their address, but no other fields.
Showing the address makes it easy to see the label's value, which isn't
always obvious right before a .arstart.  The labels are suppressed if the
address value evaluates to non-addressable.

This defines a new type of symbol, which is external and always global
in scope.  Pre-labels affect label localization and must go through
the usual remapping to handle clashes with opcode mnemonics and the
use of leading underscores.  Cross-references are computed, but are
associated with the file offset rather than the label line itself.

Added a new filter to the Symbols window ("PreL").

Implemented label input and checking in the address editor.  Generally
added highlighting of relevant error labels.
2021-10-04 20:41:19 -07:00
Andy McFadden
e8608770b9 ORG rework, part 7
Implemented "is relative" flag.  This only affects source code
generation, replacing ".arstart <addr>" with ".arstart *+<value>".
Only output by 64tass and ACME generators.

Added a bold-text summary to radio buttons in address region edit
dialog.  This makes it much easier to see what you're doing.  Added
a warning to the label edit dialog when a label is being placed in
a non-addressable region.

Modified double-click behavior for .arstart/.arend to jump to the
other end when the opcode is clicked on.  This matches the behavior
of instructions with address operands.

Reordered Actions menu, putting "edit operand" at the top.

Fixed AddressMap entry collision testing.
Fixed PRG issue with multiple address regions at offset +000002.

Added regression tests.  Most of the complicated stuff with regions
is tested by unit tests inside AddressMap, but we still need to
exercise nested region code generation.
2021-10-02 15:43:41 -07:00
Andy McFadden
e6c5c7f8df ORG rework, part 6
Added support for non-addressable regions, which are useful for things
like file headers stripped out by the system loader, or chunks that
get loaded into non-addressable graphics RAM.  Regions are specified
with the "NA" address value.  The code list displays the address field
greyed out, starting from zero (which is kind of handy if you want to
know the relative offset within the region).

Putting labels in non-addressable regions doesn't make sense, but
symbol resolution is complicated enough that we really only have two
options: ignore the labels entirely, or allow them but warn of their
presence.  The problem isn't so much the label, which you could
legitimately want to access from an extension script, but rather the
references to them from code or data.  So we keep the label and add a
warning to the Messages list when we see a reference.

Moved NON_ADDR constants to Address class.  AddressMap now has a copy.
This is awkward because Asm65 and CommonUtil don't share.

Updated the asm code generators to understand NON_ADDR, and reworked
the API so that Merlin and cc65 output is correct for nested regions.

Address region changes are now noted in the anattribs array, which
makes certain operations faster than checking the address map.  It
also fixes a failure to recognize mid-instruction region changes in
the code analyzer.

Tweaked handling of synthetic regions, which are non-addressable areas
generated by the linear address map traversal to fill in any "holes".
The address region editor now treats attempts to edit them as
creation of a new region.
2021-09-30 21:11:26 -07:00
Andy McFadden
2fed19ac47 ORG rework, part 5
Updated project file format to save the new map entries.

Tweaked appearance of .arend directives to show the .arstart address
in the operand field.  This makes it easier to match them up on screen.
Also, add a synthetic comment on auto-generated .arstart entries.

Added .arstart/.arend to the things that respond to Jump to Operand
(Ctrl+J).  Selecting one jumps to the other end.  (Well, it jumps
to the code nearest the other, which will do for now.)

Added a menu item to display a text rendering of the address map.
Helpful when things get complicated.

Modified the linear map iterator to return .arend items with the offset
of the last byte in the region, rather than the first byte of the
following region.  While the "exclusive end" approach is pretty
common, it caused problems when updating the line list, because it
meant that the .arend directives were outside the range of offsets
being updated (and, for directives at the end of the file, outside
the file itself).  This was painful to deal with for partial updates.
Changing this required some relatively subtle changes and annoyed some
of the debug assertions, such as the one where all Line items have
offsets that match the start of a line, but it's the cleaner approach.
2021-09-27 18:13:06 -07:00
Andy McFadden
3a2c4fa6d2 ORG rework, part 4
Reimplemented "set address" dialog as the Address Region Editor.  The
new dialog configures itself differently depending on whether the user
appears to be trying to create, edit, or resize a region.  Each mode
has two options, to allow the user to choose between floating and fixed
end points.

The old dialog would allow you to delete an address override by erasing
the address field.  Now there's an explicit "delete region" button.

Changed the SetAddress undoable change function to use AddressMapEntry
objects.

We now show detailed information on .arstart/.arend in the Info window
when the lines are selected.

PRG files are now created without specifying a region for the first
two bytes, so the load address exists in a NON_ADDR hole.  Fixed a
couple of issues to make that look right.
2021-09-26 17:17:54 -07:00
Andy McFadden
5f472b60cf ORG rework, part 3
Split ".org" into ".arstart" and ".arend" (address range start/end).
Address range ends are now shown in the code list view, and the
pseudo-op can be edited in app settings.  Address range starts are
now shown after notes and long comments, rather than before, which
brings the on-screen display in sync with generated code.

Reworked the address range editor UI to include the new features.
The implementation is fully broken.

More changes to the AddressMap API, putting the resolved region length
into a separate ActualLength field.  Added FindRegion().  Renamed
some things.

Code generation changed slightly: the blank line before a region-end
line now comes after it, and ACME's "} ;!pseudopc" is now just "}".
This required minor updates to some of the regression test results.
2021-09-22 15:28:11 -07:00
Andy McFadden
39b7b20144 ORG rework, part 1
This is the first step toward changing the address region map from a
linear list to a hierarchy.  See issue #107 for the plan.

The AddressMap class has been rewritten to support the new approach.
The rest of the project has been updated to conform to the new API,
but feature-wise is unchanged.  While the map class supports
nested regions with explicit lengths, the rest of the application
still assumes a series of non-overlapping regions with "floating"
lengths.

The Set Address dialog is currently non-functional.

All of the output for cc65 changed because generation of segment
comments has been removed.  Some of the output for ACME changed as
well, because we no longer follow "* = addr" with a redundant
pseudopc statement.  ACME and 65tass have similar approaches to
placing things in memory, and so now have similar implementations.
2021-09-16 17:02:19 -07:00
Andy McFadden
0dfa2326dd Fix L1/L2 ASCII string editing
The data operand editor determines low vs. high ASCII formatting by
examining the first byte of string data.  Unfortunately the test was
broken, and for strings with a 1- or 2-byte length, was testing the
length byte instead of the character data.  This is now fixed.

This also changes the way empty strings are handled.  Before, they
were allowed but not counted, so you couldn't create an empty string
by itself, but could do it if it were part of a larger group.  This
was unnecessarily restrictive.  Empty L1/L2/null-term strings are now
allowed.

This means that a buffer full of $00 can be formatted as a big pile
of empty strings, which seems a bit ridiculous but there's no good
reason to obstruct it.

(issue #110)
2021-09-12 09:46:55 -07:00
Andy McFadden
74fa310718 Fix multi-select with highlighted target
If you select a line that refers to another line, the target line's
address is highlighted.  If you select multiple lines, the highlight
is removed.  The code that removes the highlight was inadvertently
resetting the selection, making it impossible to shift-click a
range that ended with a highlighted line.
2021-09-11 10:48:38 -07:00
Andy McFadden
fc5f36885a Fix crash when window panel sizes are off
The code could attempt to set a negative height for the windows in
the side panels.

(issue #108)
2021-08-21 07:45:11 -07:00
Andy McFadden
19ba34760b Rework ItemContainerGenerator StatusChanged hack
This is another attempt to fix the ListView keyboard position
behavior.  Basic problem: if you change something in the ListView,
the keyboard position is lost, and WPF doesn't expose a nice way to
save and restore it.  It appears the way to set the position is by
calling Focus() on the specific item you want to have as the "current"
keyboard position, but you can only do that at certain times.

This attempt removes the grid-splitter resize hack, in favor of just
setting a "needs refocus" flag when we restore the selection set.
This causes Focus() to be called from the StatusChanged callback on
the next event with status="containers generated".

During testing I noticed some other odd behavior: if you used "goto"
to jump to an address, up/down arrows would change focus to a
different control (menu items, grid splitters, etc).  The problem
there was that we were setting focus to the ListView control rather
than to a ListViewItem, so arrow keys were in control-traversal mode
rather than list-walk mode.  That is also fixed.

(Issue #105)
2021-08-08 17:39:21 -07:00
Andy McFadden
3368182e14 Allow single-character DCI strings
The DCI string format uses character values where the high bit of the
last byte differs from the rest of the string.  Usually all the high
bits are clear except on the last byte, but SourceGen generally allows
either polarity.

This gets a little uncertain with single-character strings, because
SourceGen can't auto-detect DCI very effectively.  A series of bytes
with the high bit set could be a single high-ASCII string or a series
of single-byte DCI strings.

The motivation for allowing them is C64 PETSCII.  While ASCII allows
"high ASCII" as an escape hatch, PETSCII doesn't have that option, so
there's no way to mark the data as a character or a string.  We still
want to do a bit of screening, but if the user specifies a non-ASCII
character set and the selected bytes have their high bits set, we
want to just treat the whole set as 1-byte DCI.

Some minor adjustments were needed for a couple of validity checks
that expected longer strings.

This adds some short DCI strings in different character sets to the
char-encoding regression tests.

(for issue #102)
2021-08-08 15:38:39 -07:00
Andy McFadden
38bc7721a4 Fix "goto address" for overlapping segments
If you have multiple overlapping segments (say, four 8KB chunks
that all load at $8000), and you use the "goto" command to jump
to address $8100, it should try to jump to that address within
whichever segment you happen to be working (based on the current
line selection).  If that address doesn't exist in the current
segment, it's okay to punt and jump to the first occurrence of that
address in the file.

The existing code was always jumping to the first instance.

(related to issue #98)
2021-07-30 14:40:17 -07:00
Andy McFadden
03a0fc13fd Expand max local variable width to 257
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.
2021-07-20 13:08:19 -07:00
Andy McFadden
ab8853219b Version 1.7.4 2021-06-08 13:15:19 -07:00
Andy McFadden
5fb1fb3240 Set owner of status flags edit window
The XAML code specified it to be placed centered on the owner's window,
but we weren't actually setting the owner.
2021-06-03 17:16:07 -07:00
Andy McFadden
011181d848 Work around minor column width update issue
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.
2021-06-03 15:03:22 -07:00
Andy McFadden
49f4017410 Rename "hints" to "analyzer tags"
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)
2020-10-15 16:55:29 -07:00
Andy McFadden
908a1c9900 Rename "hint" in UI and documentation
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)
2020-10-14 15:02:53 -07:00
Andy McFadden
34ba47e71d Add W65C02S support, part 3
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.
2020-10-11 14:35:17 -07:00
Andy McFadden
b60dc4fee4 Add W65C02S support, part 1
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.
2020-10-10 15:46:34 -07:00
Andy McFadden
b962d8715d Add toolbar button for "show cycle counts"
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.
2020-09-04 17:49:28 -07:00
Andy McFadden
7c506dceb6 Add Ctrl+Enter as a way to close the LVTable edit dialog
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.)
2020-08-27 17:09:18 -07:00
Andy McFadden
69a9e98a43 Split "show cycle counts" in two
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.
2020-08-27 13:59:53 -07:00
Andy McFadden
2dfdb3234b Add Apple II screen memory chart
Show mapping between lines on the text and hi-res screens and
locations in memory.
2020-08-20 17:24:28 -07:00
Andy McFadden
94d7a30a09 Expand "apply platform symbols" feature
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.
2020-07-28 10:56:07 -07:00
Andy McFadden
c380b001b7 Put focus on code list after opening project
Setting the focus allows certain key commands (like up/down arrows)
to work without having to click in the code list first.
2020-07-25 11:35:27 -07:00
Andy McFadden
1e7a6620e0 Make project properties window resizable
Useful for the project symbols tab.  The size is retained for the
current session, but resets when the program exits.
2020-07-24 17:14:15 -07:00
Andy McFadden
cb6ceafd73 Make operand wrap length configurable
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.
2020-07-19 18:39:27 -07:00
Andy McFadden
a3c7cd0cf9 Add File > Reload External Files
The new menu item reloads platform symbol files and extension scripts,
which is very handy when making edits to project files.
2020-07-19 16:59:41 -07:00
Andy McFadden
195c93a94a Reboot sandbox when required
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)
2020-07-19 13:20:18 -07:00
Andy McFadden
4928dfd872 Tweak security menu items
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.
2020-07-18 13:47:01 -07:00
Andy McFadden
ad02494f0f Default to source bank in Format Address Table
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).
2020-07-16 13:26:13 -07:00
Andy McFadden
eecace8988 Tweak column widths for clipboard and Export default
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.
2020-07-16 10:48:03 -07:00
Andy McFadden
c5d764d11f SGEC update, part 1
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.
2020-07-15 16:18:02 -07:00
Andy McFadden
2a2aadffec Data Bank Register management, part 5
Update documentation.  Add some information about OMF relocation
data as well.

Fix bug in B=K handling.
2020-07-10 13:29:36 -07:00
Andy McFadden
0929077fda Data Bank Register management, part 4
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.
2020-07-09 19:42:31 -07:00
Andy McFadden
ee58d9e803 Data Bank Register management, part 3
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.
2020-07-09 16:52:23 -07:00
Andy McFadden
973d162edb Data Bank Register management, part 2
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.
2020-07-09 11:14:55 -07:00
Andy McFadden
18e6951f17 Add Data Bank Register management, part 1
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.
2020-07-08 17:56:27 -07:00
Andy McFadden
d58b747571 Use relocation data to format instruction operands
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.
2020-07-03 17:58:41 -07:00