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.
Created the "all ops" tests for W65C02. Filled in enough of the
necessary infrastructure to be able to create the project and
disassemble the file, though we're not yet handling the instructions
correctly.
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.
Renaming a user label doesn't cause a re-analysis, just a display
update, because nothing structural is changing. However, that's not
quite true when you have a reference to a non-existent label (e.g.
"LDA hoser"), and you rename a label to match (e.g. change "blah"
to "hoser"). The most obvious consequence was that the Message list,
which enumerates the broken symbolic references, was not being
updated.
We now identify broken references during the refactoring rename, and
change the reanalysis mode accordingly.
There is a deeper problem, where undoing the label rename does the
wrong thing with the previously-broken symbolic references (in the
earlier example, it "undoes" them to "blah" rather than back to
"hoser"). I added some notes about that, but it's harder to fix.
Also, clean up some code that was still treating ReanalysisScope as
if it were bit flags.
Consider:
LDA $00 loads a value from address $00
LDA $00,X might load from $00, or might not
LDA ($00),Y dereferences $00 as a 16-bit pointer
LDA ($00,X) dereferences a pointer, not necessarily from $00
When perusing the cross-reference list, it's useful to be able to
tell whether an instruction is accessing the location, using it as a
base address, or deferencing it as a pointer. We now show "ptr" in
the list for pointer dereferences. (We already showed "idx" for
indexed accesses.)
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.
- Added SOS parameter block formatting.
- Normalized SOS call names to values in SOS Reference Manual.
- Added SOS call error code constants.
- (from robjustice) Added more to A3-IO.sym65.
Also, rearranged the ProDOS code slightly.
(issue #85)
Inline BRK instructions have a problem similar to the one fixed
for JSR/JSL back in 63d7a487, but the same fix won't work because
JSR/JSL are assumed "continue", while BRK is assumed "no-continue",
and must therefore set a no-no-continue flag. For now, we just
re-evaluate the BRK on every visit to the code.
A review of the previous fix revealed an opportunity to use the
NoContinueScript flag on subsequent visits to improve consistency.
We weren't altering the status flags after a BRK because of the
assumption that a BRK was a crash. For an inline BRK, such as a SOS
call, execution continues. We need to mark NVZC indeterminate or
we may incorrectly handle conditional branches that follow.
The BRK instruction now uses the same flag updater as JSR, since it's
effectively a subroutine call to unknown code. If execution doesn't
continue across the BRK then the flags don't matter.
Updated 20182-extension-scripts to exercise this.
Added explicit widths to the 6502 vectors.
Two changes to Apple II hi-res visualization:
(1) Allow the row stride to be any value >= 1. This is useful
when data is stored in column-major order, i.e. it's a two-byte-wide
shape, with all of the data for the first column stored before the
data for the second column. (Set the row stride to 1, and the
column stride to the bitmap height.)
(2) Modify the layout of grids (sprite sheets and fonts), so that
we're closer to square when the item counts is low. Otherwise the
thumbnail just looks like a dashed line. (This one is strictly
cosmetic.)
Added a bunch of Applesoft entry points, and updated the F8ROM
definitions.
Added a visualizer for Applesoft shape table shapes that are not part
of an actual shape table.
It's fairly common to want to Find something and then jump back to
where you were. The Find command now adds the current position to
the nav stack for the initial search. If you Find Next, the nav
stack is not altered.
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.
First, make the per-segment comments and notes optional.
Second, add an "offset segment by $0100" feature that tries to shift
each segment forward 256 bytes. Doing so avoids potential ambiguity
with direct page locations.
The 20212-reloc-data test no longer has the per-segment comments.
The "smart" PLP handler tries to recover the flags from an earlier
PHP. The non-smart version just marks all the flags as indeterminate.
This doesn't work well on the 65816 in native mode, because having
the M/X flags in an indeterminate state is rarely what you want.
Code rarely uses PLP to reset the flags to a specific state, preferring
explicit SEP/REP. The analyzer is more likely to get the correct
answer by simply leaving the flags in their prior state.
A test case has been added to 20052-branches-and-banks, which now has
"smart PLP" disabled.
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.
