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HISTORY
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2019-09-08: release 2.5.6
* SOLVE would not always return the best function value in Z. Fixed.
* iOS version: There have been crashes occurring in the display update logic,
due to some not yet understood condition that appears to affect faster
iPhones (8, X, XR, XS). I implemented a fix that appears to prevent these,
but at a cost in terms of performance, i.e. the emulation is a bit slower
now. I'm working on a proper fix, which will eliminate these problems and
restore maximum performance.
2019-09-06: release 2.5.5
* Moved the settings "Singular Matrix Error," "Matrix Out Of Range," and "Auto-
Repeat" from the core state (the *.f42 files) to the shell state, so they are
not affected by switching core states.
* Fixed a bug that caused State File Corrupt when reading a state containing a
zero-length string.
* iOS version: Fixed a couple of bugs that were causing memory and state file
corruption and crashes.
* iOS and MacOS versions: Fixed a couple of bugs that were causing crashes in
the States window.
* Android version: The States window would ask for confirmation to revert the
current state back to the last version saved, even when the user was trying
to switch to a different state. Fixed.
2019-09-02: release 2.5.4 (iOS only)
* Fixed a crash when the States window was opened the very first time the app
was run after a new install.
* Fixed a bug that could cause the hostname lookup for the HTTP Server window
to fail.
2019-09-01: release 2.5.3
* Invalid state files (corrupt, or created by an incompatible newer version of
Free42) are now renamed, so they are not lost when a new state is written,
and can be retrieved for post-mortem analysis.
2019-08-31: release 2.5.2
* In the States window, renamed Reload to Revert, and added a confirmation
dialog, since that is a potentially destructive action.
* When programs were imported from raw files, empty programs were sometimes
being created unnecessarily. Harmless but slightly annoying. Fixed.
* Android and iOS versions: Added "share" option for Print-Out view.
* Android and iOS versions: Added "share" option for programs in raw format.
* Android and iOS versions: Now import raw files directly from email
attachments and web links.
2019-08-28: release 2.5.1
* Fixed bug in 2.5 that caused string elements in real matrices (including the
numbered registers) to be written incorrectly in the state file, leading to
memory corruption and crashes when the state file was read back in.
* iOS version: Now makes sure that the current state shows up in the list in
the States view, even if it is opened right after a fresh install or right
after upgrading from a version before 2.5.
2019-08-25: release 2.5
* Added state file manager, for loading, saving, and switching between,
calculator states. The state files are in a platform-neutral format, so they
can be exchanged between Free42 instances running on different devices.
* Fixed crash in RTN when a local variable was hiding the indexed matrix.
2019-07-12: release 2.4.2
* Windows version: The new Ctrl-A, Ctrl-I, and Ctrl-T shortcuts (Paper Advance,
Copy Print-Out as Image, and Copy Print-Out as Text) didn't work, because I
hadn't updated the corresponding accelerator resources. Fixed.
* Windows and Linux versions: All Ctrl-<Key> shortcuts now work even when the
Print-Out window is on top.
* Android, iOS, and MacOS versions: When loading a skin in the skin browser,
they now force an un-cached load, so skin fixes can actually be loaded by
users without delay, and without having to resort to side-loading.
* Android and iOS versions: Changed default landscape skin, from desktop/42ct
to android/SGS-L. The old skin had keys below the display that didn't line up
with the menus; you really have to have Σ+ 1/x √x LOG LN XEQ
below the display for a consistent user interface.
* iOS version: Changed Standard-X skin, from Ehrling42sl.X to Matt42X. The old
skin was rather blurry; the new skin has nice and crisp text for all key
labels.
2019-07-03: release 2.4.1
* Fixed several bugs in BWRAP mode.
2019-07-01: release 2.4
* Implemented configurable word size for BASE functions (up to 64 bits, or 52
in Free42 Binary), unsigned mode, and wrap mode. The new settings are all in
a new row in the MODES menu.
* Android, iOS, and MacOS versions: Added some feedback in the skin loading
window: the "Load" button changes to "..." while a page load is in progress;
"Load" is enabled only when a GIF or layout file is being displayed, i.e.
something that could actually be a skin, and therefore loadable; and finally,
when Load is pressed to load a skin, an alert box is now shown to report
success or failure.
2019-06-25: release 2.3.1a (Android only)
* Adding -mfpu=vfp to compilation flags when building the Intel library for
armv7. Apparently, with NDK r19c, Neon is enabled by default, but Neon is not
supported on all armv7 Android devices, so this setting is causing 2.3.1 to
crash on certain phones. (2.2.1b and earlier were built with an earlier NDK,
which did not have this problem.)
2019-06-25: release 2.3.1
* Android version: Implemented the 2.3 features, with the exception of Copy
Print-Out as Image. (Apparently Android doesn't support images on the
clipboard.)
* MacOS version: Copy Print-Out as Image didn't handle wrap-around in the
image buffer correctly. Fixed.
* Windows and Linux version: Implemented Paper Advance, Copy Print-Out as Text,
and Copy Print-Out as Image.
* iOS version: Fixed the top-of-screen menu trigger so that it no longer
sabotages keys that are also in that area, as in the HP_Mega_42 and SGS-L
skins. This is the same fix I made for Android in release 1.5.8d. I didn't
think to fix this for iOS at the time, probably because the iOS version
didn't support landscape mode then.
2019-06-15: release 2.3.0a (iOS only)
* Added the 2.3 features.
This should have been called version 2.3 as well, but a mistake with the
release build forced me to use the next higher version number instead.
2019-06-12: release 2.3 (MacOS only)
* Added Load Skins feature, for downloading and installing skins from the
Internet.
* Added Delete Skins feature.
* Added Paper Advance for Print-Out window.
* Added Copy Print-Out as Text and Copy Print-Out as Image.
2019-05-29: release 2.2.1d (source code only)
* Migrated the Android project from Eclipse with ADT to Android Studio.
Also building the native code for x86 and x86_64 now. Not sure if I should
release that, but it is convenient for testing in the Android Emulator, now
that Google no longer releases ARM system images for the emulator.
The minimum Android API level requirement went from 8 to 14 (2.2 to 4.0), but
that seems like an acceptable price to pay.
2019-05-24: release 2.2.1c (iOS only)
* Fixed crash in Paste when clipboard contained no text.
2019-05-20: release 2.2.1b (Android only)
* Made the app explicitly single-instance (by adding
launchMode="singleInstance" to Free42Activity in the app manifest).
This should eliminate the remaining null-pointer crashes in the native code,
and also prevent State File Corrupt scenarios.
2019-05-19: release 2.2.1a (Android only)
* Added 64-bit native code.
2019-05-11: release 2.2.1
* Added side margins to print-out window.
* PRLCD is now supported in "Print to Text," using Unicode 2x2 block elements.
* Flag 64 is now set or cleared to indicate the Shift state during the most
recent key press. This can be used by MENU handlers to implement different
behaviors for unshifted and shifted menu keys.
* Windows version: Changed sounds from using the Beep() function to playing
wav sounds using the PlaySound() function, matching the way sounds are played
in the Android, iOS, and MacOS versions.
* MacOS Dashboard version: Didn't recognize comma as decimal key. Fixed.
2019-04-07: release 2.2
* Implemented YMD mode for date functions, using YYYY.MMDD as the numeric
format and YYYY-MM-DD as the display format. Programs can check whether this
mode is active by testing flag 67. If flag 67 is clear, the mode is indicated
by flag 31 (clear = MDY, set = DMY), as before.
* Local variables. You create them with the new LSTO function, and they
disappear automatically when the current subroutine ends, by executing RTN or
END. If a local variable is created with a name that matches an already-
existing variable, the older variable is hidden until the local variable goes
away.
* Dynamically growing RTN stack. It is not unlimited; in order to prevent
infinite recursion from eating up all memory, it maxes out at 1024 levels.
The new stack behaves a bit different than the old version (and the real
HP-42S): when an XEQ happens while the stack is full, the old version would
silently discard the oldest RTN, while with the new version, this returns a
"RTN Stack Full" error.
* Added support for direct command mapping in skins. This is specified by
creating Macro: lines where the macro is not a sequence of keystrokes, but a
command name enclosed in double quotes, e.g., Macro: 40 "SST→"
* Windows, MacOS, and Linux versions: In skin layout files, they now look for
keymap entries tagged as "WinKey:", "MacKey:", or "GtkKey:", respectively.
This allows embedding keymaps for multiple platforms in one layout file.
This does mean that old-style keymap entries, with no identifying tags, are
no longer recognized. Out of all the skins in my collection, the only
affected skins are desktop/42ck and desktop/42ct. If you use these skins,
you'll want to download the updated layout files.
2019-03-27: release 2.1.1 (Android only)
* The "Maintain skin aspect ratio" setting didn't stick when the app was exited
and restarted. Fixed.
2019-03-26: release 2.1
* New functions: SST↑ (Step Out) and SST→ (Step Over). Step Out runs the
program until the end of the current subroutine; Step Over executes one step,
but if that step is an XEQ, SOLVE, or INTEG, it runs until the subroutine
returns, or SOLVE or INTEG are done. When Step Out is performed in a function
called by SOLVE or INTEG, the program runs until SOLVE or INTEG are done.
* Added SST↓ (Step Into), which is just an alias for SST. This allows creating
a row in the CUSTOM menu with SST↓, SST→, and SST↑, like in typical high-
level language debuggers.
* Android and iOS versions: Improved "Maintain skin aspect ratio" option: it
now chooses the largest scale where the skin still fits on the screen in its
entirety, and centers the skin within the available space.
* iOS version: The "Maintain skin aspect ratio" and "Print to text" options in
the Preferences were switched. Fixed.
* iOS version: Fixed handling of announcements in the status bar (audio
recording, active call, active GPS).
* iOS version: Turned optimization back on. It looks like the optimizer bug
(see release notes for 2.0.21a) has been fixed.
2019-03-18: release 2.0.24h (Android only)
* The screen update logic in the previous version was incorrect and caused the
app to appear unresponsive on many devices. Fixed.
2019-03-17: release 2.0.24g (Android, iOS, and MacOS)
* Android, iOS, and MacOS versions: Enabled non-integral display scaling.
* Android and iOS versions: Added setting in Preferences to choose whether to
stretch skins to fill the screen, or to stretch them only to fill the
available width, while maintaining their original aspect ratio.
* iOS version: Implemented support for landscape orientation.
* iOS version: Fixed alignment of "Done" buttons.
2019-03-08: release 2.0.24f (iOS only)
* Added Haptic Feedback setting in Preferences.
2019-03-03: release 2.0.24e (Android only)
* Fixed crash when calling ON or OFF from a program.
* Fixed a bug that could leave a corrupted state file under certain
circumstances.
2019-02-28: release 2.0.24d (Android only)
* Fixed crashes while printing.
2019-02-26: release 2.0.24c (Android and iOS)
* Android version: Removed all restrictions on file selection dialogs, and
instead added a "Home" button, so you can always navigate back to
/sdcard/Android/data/com.thomasokken.free42 if you get stuck somewhere.
* iOS version: Fixed the white bar that was showing up above the skin on iPads
running iOS 12.
2019-02-25: release 2.0.24b (Android only)
* Made file selection dialogs full-screen.
* Fixed file selection behavior for Import Programs and Select Skin. It now
starts in the writable storage directory, but does allow navigation out of
it.
2019-02-25: release 2.0.24a (Android and MacOS)
* Android version: Lifted file selector directory restriction for Import
Programs and skin selection, keeping it in place for Export Programs and
selecting print-out files.
* MacOS version: The previous release broke Import Programs. Fixed.
2019-02-24: release 2.0.24
* Made program pasting a bit more lenient: tabs are now treated as spaces, and
the following command names are now recognized: x, RCL*, RCLx, RCL/, STOx,
X#0?, X#Y?, X<>0?, and X<>Y? (in addition to all the alternate spellings that
were recognized previously).
* iOS version: Added Key Clicks setting in Preferences.
* Windows and MacOS versions: Now refuse to export zero programs. (The other
versions already did this.) Also tweaked the file selection dialogs a bit.
* Android version: When running on 4.4 (KitKat) or later, now creates the
storage directory, /sdcard/Android/data/com.thomasokken.free42, as soon as it
has access. The file selection dialogs are now restricted to this directory
and its subdirectories.
2019-02-18: release 2.0.23c (iOS only)
* The previous release calculated the skin scale incorrectly for certain skins,
causing them to be displayed too small. Fixed.
2019-02-17: release 2.0.23b (iOS only)
* Enabled non-integral scaling for skins, so skins can fill the width of the
screen on iPhone X series (X, XR, XS, XS Max) even if they were designed for
older models with 3:4 or 9:16 screen aspect ratios.
2019-02-11: release 2.0.23a (iOS only)
* Replaced iPhone X skin with a more screen-filling one.
2019-02-09: release 2.0.23
* SOLVE now tries harder when secant extrapolation gets stuck due to the secant
being excessively steep.
* 0^0 now returns Invalid Data, not 1, for all combinations of real and complex
arguments. The rationale for returning 1 was mathematically questionable, and
Invalid Data is what the real HP-42S returns.
* iOS version: Added basic iPhone X support.
2019-01-26: release 2.0.22c (Android only)
* New Main Menu. This should be compatible with all Android versions, including
Amazon Fire HD tablets and other devices that sabotaged the old menu after it
started targeting Android 8.
* Added code to request storage and GPS access when needed.
2019-01-13: release 2.0.22b (Android only)
* Another fix for invisible overflow menu items.
2019-01-12: release 2.0.22a (Android only)
* Fixed invisible overflow menu items.
2019-01-12: release 2.0.22
* Made pasting real scalars a bit more lenient: it is now permitted for there
to be trailing non-numeric characters after the number, so pasting a number
with an attached unit, say 50mm, yields the number 50, not the string "50mm".
* INPUT should clear any message from the display before showing the prompt,
but it didn't. Fixed.
* When ALPHA mode is active on top of VARMENU, ASTO and ARCL should show the
regular variable menus, but they showed the VARMENU instead. Fixed.
* During command entry, SST and BST should be disabled, but the code that tried
to do this also prevented some legitimate uses of up-arrow and down-arrow,
such as switching menu rows during FIX IND __.
* While entering a numeric LBL, it should be possible to switch to ALPHA mode,
using Shift-ENTER, to switch from, say, LBL 3_ to LBL "3_ , as an alternative
method of entering ALPHA labels that start with a digit. The HP-42S allows
this, but Free42 didn't. Fixed.
* Android and iOS versions: OFF now turns off "continuous on" mode.
2018-11-24: release 2.0.21b (Windows only)
* Fixed Alt-Tab behavior.
2018-07-03: release 2.0.21a (iOS only)
* Turned off all optimization for release builds; the latest iOS developer
tools appear to have a buggy optimizer, and it is causing number display in
OCT and HEX modes to misbehave -- they show numbers with unwanted leading
zeroes, for a total number of digits that would be appropriate for BIN mode,
so 1=>1, 2=>02, 3=>03, 4=>004, etc.
2018-06-24: release 2.0.21
* Fixed complex SQRT so it returns exact results when Re(x) = 0 and Im(x)/2 is
a perfect square.
* VARMENU would step through rows of multi-line menus in the wrong order.
(You needed a function with 13 or more MVARs to notice this.) Fixed.
* When printing to GIF, changing the filename did not cause the GIF numbering
sequence to restart at 1. Fixed.
* When printing to GIF, the output file is now flushed and closed immediately
if there is no more room for at least another 9 pixels after printing -- in
other words, when no more printing to that file is possible anyway. It used
to wait until the next print request, or app close, before flushing and
closing in this situation.
Also, the minimum height of a GIF output file is now 16 pixels, down from 32.
2018-03-12: release 2.0.20
* MATA, MATB, and MATX should exhibit the same stack lift behavior as EDIT and
EDITN, but didn't. Fixed.
2018-03-10: release 2.0.19
* Another EDIT/EDITN fix: in the real HP-42S, EDIT and EDITN don't actually
disable stack lift; they preserve the stack lift state, which you can observe
if you do ENTER vs. a stack-lift-enabling operation (say, X<>Y) just before
invoking them. This behavior is not really useful, but it needs to be
emulated anyway, since not doing so risks breaking HP-42S programs.
This does not affect GOTO Row/Column.
2018-03-09: release 2.0.18
* EDIT, EDITN, and GOTO Row/Column should disable stack lift, but they didn't.
Fixed.
2018-03-02: release 2.0.17
* Inserting or deleting an END would not always clear cached local GTO or XEQ
targets, potentially causing local GTO or XEQ commands to jump to the wrong
locations. Fixed, and also added code to repair such damage in existing state
files.
2018-02-22: release 2.0.16
* 0 SEED initialized the random seed incorrectly, wasting one digit of
randomness. Fixed.
* When importing raw files, E and -E are now recognized as 1 and -1, for
compatibility with HP-41 raw files with synthetic numbers.
* When importing raw files, synthetic instructions are now handled more like
the real HP-42S handles them. Basically, any argument >= 100 that isn't a
stack register and that isn't a local label is treated as numeric. Arguments
112-116 are always stack registers, even when that makes no sense (flags,
SigmaREG, etc.); 102-111 and 123-127 are only considered as A-J and a-e in
LBL, GTO, and XEQ.
Note that nothing very interesting happens as a result of these changes. They
won't make synthetic HP-41C code work in Free42 any more than it does in the
HP-42S; the behavior is just more like the real 42S now.
2018-02-17: release 2.0.15
* POSA would not find the search string if its only occurrence was at the very
end of the alpha register. Fixed.
* Android version: Tweaked handling of low-battery indicator.
2018-02-10: release 2.0.14
* In Export Programs, removed the hard-coded buffer size for the list of
programs, so you should now see all your programs in the list, no matter how
many there are.
* When Pasting complex numbers in a+bi notation, the imaginary unit must now be
either i or j; the alternative spellings I and J are no longer recognized.
2018-02-06: release 2.0.13
* Paste didn't handle numbers with negative exponents correctly. Fixed.
2018-02-02: release 2.0.12d (iOS only)
* Fixed crash in GIF printing.
2018-01-30: release 2.0.12c (Android only)
* Another fix for crash on orientation change while printing.
2018-01-29: release 2.0.12b (Android only)
* Switching between portrait and landscape modes, while printing was in
progress, could cause a crash. Fixed.
2018-01-28: release 2.0.12a (Android only)
* Fixed handling of state files that were corrupted in a way that caused
persistent crashes on the first keystroke.
2018-01-27: release 2.0.12
* Fixed pasting of SIZE lines.
* When pasting numbers, spaces are now allowed as thousands separators.
* MacOS and MacOS Dashboard versions: Are now 64-bit.
* MacOS and Linux versions: Fixed Caps Lock handling, so Caps Lock + Esc no
longer exits.
* Android and iOS versions: Implemented "continuous on" mode (ON function,
flag 44).
2018-01-26: release 2.0.11a (Android only)
* Removed the cleanup of variables in core_quit(); it looks like this was
responsible for the failure mode where the app would crash at the first
keystroke, consistently, forcing uninstall/reinstall.
* Pasting numbers that ended in CRLF, as when copying a single cell from Excel,
didn't work; they were interpreted as strings. Fixed.
2018-01-14: release 2.0.11
* Copy now ignores flag 29 (thousands separators) and always copies numbers
without separators. This fixes certain surprising / undesirable behaviors
when pasting numbers into spreadsheets or programs.
* When entering a program line in NORM or TRACE modes, the line would be
printed, even when printing was disabled. Fixed.
* MATA and MATB, in the SIMQ menu, would crash if the MATA or MATB variables
were missing. Fixed, and also cleaned up type checks in MATX.
* Android version: Printing lots of output quickly, for example, by running a
program in TRACE mode, would cause the user interface to become sluggish or
even unresponsive on some devices. Fixed by posting UI updates less
aggressively.
2018-01-07: release 2.0.10
* Program Paste without line numbers didn't handle certain numbers,
specifically, those that started with a digit and didn't consist of only
digits. Fixed.
2018-01-07: release 2.0.9
* Program Paste no longer requires line numbers.
* The CUSTOM command would toggle the CUSTOM menu, but that was wrong: it
should only activate that menu, never deactivate it. Fixed.
* DIM?, EDIT, and EDITN didn't print X in TRACE mode. Fixed.
* Selecting the already-active menu did not cause the display to be repainted,
even though it should: there might be a message, which should be removed in
that case. Fixed.
* All versions except MacOS Dashboard: made the print annunciator linger for
one second after printing stops. This makes it more noticeable, so printing
is less likely to go unnoticed on fast devices.
* MacOS version: Implemented battery checker.
* Linux version: Added /sys/class/power_supply support in battery checker.
2017-12-26: release 2.0.8
* MENU (activating the programmable menu) while in ALPHA mode didn't turn off
the alpha_mode flag, leading to bad behavior or even crashes if any menu keys
were subsequently pressed.
2017-12-21: release 2.0.7c (Windows only)
* Decimal: SIN and COS of 45 degrees or 50 grads returned an inaccurate result,
correct to only 16 digits. Fixed.
2017-12-18: release 2.0.7b (Android only)
* The "Always Paint Entire Display" setting, introduced in the previous
version, didn't stick after app restart. Fixed.
2017-12-17: release 2.0.7a (Android only)
* Added "Always Paint Entire Display" option. This prevents display glitches
with certain combinations of devices and skins.
2017-11-19: release 2.0.7
* Changed the RAN and SEED functions to match the behavior of the real HP-42S.
The previous implementation used the algorithm from the HP-41C Standard Pac,
which produced numbers with only 6 significant digits.
* The up/down annunciator (multi-row menu) did not get updated correctly when
VARMENU was activated, including in the solver and integrator. Fixed.
* Windows version: Restored the Calculator key mapping option, which I had
removed in 1.5.14. It turns out that keyboards with a dedicated Calculator
key do still exist.
* Android version: The menu icons for Copy, Paste, and Print-Out were displayed
too large, overlapping the menu item labels on some devices. Fixed.
* Windows, Linux, MacOS, and MacOS Dashboard versions: Added keyboard mappings
g => GTO and p => PI. On existing installations, users must delete or rename
the existing keymap and restart for this to take effect.
* iOS version: Painting the display could be glitchy if either or both of
its coordinates were odd. Fixed by forcing them to be even.
2017-08-12: release 2.0.6
* Decimal version: Fixed ISG and DSE for values >= 2^63 (9.2e18).
* Fixed a couple of bugs in how changes to internal SOLVE and INTEG data
structures are handled.
2017-07-30: release 2.0.5
* Fixed INTEG termination condition. It would return inaccurate results in
certain cases.
* Fixed importing numbers with exponent but no mantissa, e.g. E3, -E-5, etc.
This got broken in 1.5.
* Fixed crash when trying to allocate ridiculously large matrices.
* While entering a numeric argument, the up-arrow and down-arrow keys would
perform BST and SST, which should be blocked. Fixed.
* Testing flag 75 would turn on the programmable menu. Fixed.
* iOS version: Fixed a few display alignment issues with the built-in 4"
skin.
2017-05-29: release 2.0.4
* Implemented special-case code for pure real and pure imaginary numbers in all
the complex logarithmic, trigonometric, and hyperbolic functions.
2017-05-28: release 2.0.3
* Fixed a few edge cases in complex functions.
* The last digit in full-precision representation (SHOW, Copy) could be off by
one in certain circumstances. Fixed.
* On cold start, now clearing flags 21 (printer enable) and 55 (printer
existence), to match the behavior of the real HP-42S.
* Removed "raw text" print option; it has been obsolete since the introduction
of UTF-8 printing in 1.5.11, since Unicode can represent the HP-42S character
set directly.
* iOS version: LOCAT didn't work when its initial invocation happened from a
program. Fixed.
* In the About box, replaced the link to the Free42 discussion group with a
link to the Alternative HP-42S/Free42 Manual.
2017-04-28: release 2.0.2
* In Unicode-to-HP conversion, translate "\LF" and "[LF]" to 10, not 138.
Character 138 only exists to *represent* LF, but isn't available in the ALPHA
menu and therefore cannot appear in non-synthetic programs.
* Unicode-to-HP conversion handles curly quotes now (U+2018, U+2019, U+201C,
U+201D).
2017-04-23: release 2.0.1 (beta)
* Change right-pointing triangle from Unicode U+25B6 (black right-pointing
triangle) to U+25B8 (black right-pointing small triangle); the former gets
rendered as an emoji in iOS, while the latter doesn't, plus, the smaller
triangle looks better in listings anyway.
* MacOS Dashboard version: Fixed multi-line pasting.
2017-04-22: release 2.0 (beta)
* Copy & Paste now handle matrices, ALPHA mode, and PRGM mode.
2017-04-01: release 1.5.15
* Instead of being limited to 12 mantissa digits, full precision (34 digits in
the Decimal version, 16 digits in Binary) is now supported for number entry,
SHOW, Copy, and Paste.
2017-03-11: release 1.5.14
* Changed complex TAN and TANH to use more accurate formulae.
* The Time Module functions used to keep track of MDY/DMY modes using an
invisible flag. For better HP-41 compatibility, they now use flag 31.
* Android version: Made state file writing more robust. If writing the state
file fails, it now keeps the previous one, instead of leaving behind a
partial or corrupt one.
* Linux version, Free42 Binary only: Some (recent?) versions of GTK set the
LC_NUMERIC locale, which Free42 expects to always be "C". This causes number
entry and display to be messed up in locales where the decimal is not ".",
including most of Europe. I added code to force LC_NUMERIC back to "C" after
gtk_init(), fixing this problem.
* Binary version: Fixed binary round-off problem in ADATE (for example,
10.102010 would be rendered as 10/10/2009).
2017-01-22: release 1.5.13
* When DIM, SIZE, or SIMQ resize the indexed matrix, and when CLV deletes the
indexed matrix, IJ should be set to (1, 1); and when DIM, SIZE, or SIMQ try
to resize the matrix currently being edited by EDITN, and when CLV tries to
delete the matrix currently being edited by EDITN, they should return a
"Restricted Operation" error. Neither happened, creating the potential for
memory corruption if IJ ended up pointing outside the matrix' data array.
Fixed.
* STO and STO* allowed the target to be the matrix under edit by EDITN. They
should not allow this, but return "Restricted Operation" instead. Fixed.
* CLALL didn't always exit all menus. Fixed.
2016-10-03: release 1.5.12
* Android version: Fixed UTF-8 printing, which was broken in 1.5.11.
* All versions: When printing to text, up-arrow now looks like an up-arrow,
instead of a caret.
2016-10-01: release 1.5.11
* EXITALL didn't always exit all menus. Fixed.
* Print-to-text now emits UTF-8 encoded text, instead of ISO-8859-1.
* Print-to-text now emits CRLF line separators on all platforms.
* Android version: Didn't save the "raw text" print setting. Fixed.
* Android version: Added landscape skin; made it the default for landscape mode
in new installs.
2016-09-04: release 1.5.10 (Android, Windows, MacOS, and Linux)
* Fixed AGRAPH bug with complex number in X.
2016-09-04: release 1.5.9 (Android, Windows, MacOS, and Linux)
* Now building the Intel Decimal Floating-Point Math Library from source for
all targets. In terms of the end user, this makes no difference, but it will
make life easier for people who want to port Free42 to platforms that I don't
support myself (FreeBSD, Solaris, etc.); those platforms were left out in the
cold when I started using the Intel library and only provided pre-built
binaries for the supported platforms.
* Implemented range reduction for more accurate TAN in DEG and GRAD modes.
* Android version: Now handles orientation change more efficiently.
2016-04-26: release 1.5.8f (Android only)
* Rolled back 8e, which was a disaster; it didn't fix the remaining black
line issues, but it did cause crashes everywhere.
2016-04-26: release 1.5.8e (Android only)
* The previous fix for the thin-black-line problem didn't do the job on some
devices. Here's another fix that should do a better job.
2016-04-25: release 1.5.8d (Android only)
* Fixed the thin black lines that would sometimes appear around the display.
* In full-screen mode, swiping down from the top would post the menu, because
the initial touch would be in the same area that Free42 watches as the menu
trigger. I changed the code so that the trigger only fires if the user lifts
their finger while still inside that critical area, which will only happen
if the downward swipe is very short.
* Fixed the top-of-screen menu trigger so that it no longer sabotages keys
that are also in that area, as in the HP_Mega_42 skin.
2016-04-24: release 1.5.8c (Android only)
* Implemented true full-screen mode. This hides the navigation bar as well the
status bar, on devices running Android 4.4 (KitKat) or later.
2016-04-23: release 1.5.8b (Android only)
* Print-Out is now scaled to make better use of available screen width.
* Fixed key clicks.
* Implemented Reverse Portrait (upside-down) mode.
2016-04-17: release 1.5.8a (Android only)
* Tapping in the top half of the display now brings up the app's option menu.
2016-04-17: release 1.5.8
* Entering an END into a program using the CUSTOM menu would leave the program
counter at an invalid value, leading to memory corruption, state file
corruption, and crashes. Fixed.
* Android version: Changed haptic feedback code back to using the old API.
* Android version: Changed targetSdkVersion from 3.0 to 2.2. This should make
the menu reliably accessible in all Android versions and with all display
styles.
* Resurrected the MacOS Dashboard version; the display repaint logic now
supports Yosemite (10.10) and later.
2016-03-19: release 1.5.7a (Android only)
* Made the action/title bar optional.
* Added full-screen mode (removes action/title bar and status bar).
* Added installLocation=auto to the manifest, so the app can now be installed
on an SD card.
2016-02-28: release 1.5.7
* INSR should disable stack lift, but didn't. Fixed.
* Android version: Added Action Bar, reluctantly embracing the reality of
devices with no menu button (or hard-to-find menu buttons, like the "press
and hold the task switch button" behavior on some devices).
2014-12-21: release 1.5.6
* iOS version: Implemented Copy and Paste.
* iOS version: Fixed LOCAT for iOS 8.
* All versions, on hard reset, now initializing flag 28 (decimal point/comma)
to match the host's locale.
* Paste didn't clear the message flags. Fixed.
2014-11-12: release 1.5.5
* Decimal version: Entering a number with an empty exponent (e.g. 1E or 1E-)
would yield <Not a Number>. Fixed.
* iOS version: HTTP server: Fixed downloading individual programs from, and
uploading zip files of programs to, the /memory directory. This got broken in
release 1.4.77, while implementing local file download.
* Android version: When the screen orientation was set to "automatic", it would
not honor any system-wide orientation lock. Fixed.
2014-11-08: release 1.5.4a (Android only)
* Fixed crash on startup in Android 5.0 (Lollipop).
* Printing to text would truncate the file whenever it was reopened, opening it
for writing rather than appending. Fixed.
2014-09-23: (no new code release)
* Added nova1_1096 skin, for iPhone 5, to the Free42iPhoneSkins package.
Contributed by Keith Carangelo.
2014-09-06: release 1.5.4a (iOS only)
* Fixed keyboard handling in the Preferences and Select File dialogs.
* Fixed scrolling behavior (in 1.5.4, windows were sized 20 pixels beyond the
bottom of the screen, making the bottommost bit of scroll views drop off the
screen).
* Added 4" skin for iPhone 5, and added code to select the best-fitting built-
in skin on first launch.
2014-07-22: release 1.5.4
* Decimal version: Fixed ACOS. It would return 0 for acos(-1).
This bug was introduced in release 1.5.
2014-06-21: release 1.5.3a (Android only)
* Made GPS optional. When I added the ACCESS_FINE_LOCATION permission in
1.4.78, that had the side effect of making GPS a requirement. In 1.5.3a,
the app manifest explicitly states that the GPS is not required.
2014-05-25: release 1.5.3
* Fixed crash in SIMQ if any of MATA, MATB, or MATX already existed and was a
scalar or string.
2014-05-10: release 1.4.78 (Android only)
* Fixed the LOCAT function, by adding the ACCESS_FINE_LOCATION permission.
2014-03-16: release 1.5.2
* Decimal version: Fixed Y^X for complex Y and negative integral X.
* Decimal version: Made Y^X and 10^X for real Y and integral X more accurate.
* All versions: sin(45°) now equals cos(45°), and sin(50grad) = cos(50grad).
2014-03-15: release 1.5.1
* All versions: Fixed ASIN, ACOS, and ATAN so they return exact results in DEG
and GRAD modes for trivial parameters (asin(1), asin(-1), acos(0), atan(1),
atan(-1), atan(infinity).
* Now displaying signed zero as zero, so you won't see -0 any more.
* Windows version: Removed the "Free42 Directory" setting from the Preferences.
The application now looks for a file or directory named "portable" in the
directory where Free42Decimal.exe or Free42Binary.exe itself is located; if
it exists, the state.bin, print.bin, and keymap.txt files will be stored in
this directory as well, and skins will only be loaded from this directory. If
there is no "portable" item in the executable's directory, it will store
state.bin, print.bin, and keymap.txt in %APPDATA%\Free42, and it will load
skins from that directory, and from the executable's directory.
2014-03-09: release 1.5
* Decimal version: Switched from BCD20 to Intel's Decimal Floating-Point
Library v2.1.
* Binary version: Replaced the old binary-to-decimal and decimal-to-binary
conversions with code that uses the standard C library's equivalent
functionality. This fixes final-digit errors in the Binary version, and also
final-digit errors when switching from the Decimal to the Binary version.
* All versions: Added angle reduction code to make SIN, COS, and ->REC more
accurate in DEG and GRAD modes.
* Windows version: Now uses %APPDATA%\Free42 as the default Free42 directory
(for storing state.bin, print.bin, and keymap.txt). This avoids permissions
problems when people install the executable in a directory to which they
don't have write access (like the popular choice C:\Program Files).
2013-12-08: release 1.4.78
* All versions except Android: while parsing macros in skin layout files, tab
characters were not recognized as whitespace and caused parsing to fail.
Fixed.
* Linux version did not repaint the skin when it was switched from one skin to
another with the same width and height. Fixed.
* Windows version: Downgraded my build environment from Visual C++ 2012 to 6.0.
This means the Free42 build for Windows will run on older versions of Windows
again.
2013-12-07: release 1.4.77a (Android only)
* Android version: The "external storage" filesystem is no longer referred to
by the hard-coded path /sdcard, but using the external storage directory name
provided by the Environment. This should help prevent problems like exporting
programs and then not being able to find them from the PC.
* The file selection dialog will now append the file extension if the filename
doesn't include it already.
2013-06-15: (no new code release)
* Three new skins, and many tweaks to existing skins, contributed by KD0GLS.
The Free42Skins.zip, Free42iPhoneSkins.zip, and Free42AndroidSkins.zip
packages were all updated.
* Added two new skins for large Android devices. Contributed by Tyge Loevset.
2013-06-08: (no new code release)
* Galaxy_Nexus skin to Android skins package. Contributed by Andrew Novinc.
2013-03-02: release 1.4.77a (iOS only)
* iOS version: Fixed "Make Directory" in the file selection dialogs.
* iOS version: When the user turns off printing to text or to GIF in the
Preferences, or changes the print-out file name, the existing files are now
promptly flushed and closed.
* iOS version: Fixed "garbage" in print-out window.
* iOS version: Now highlights the currently selected skin in the Select Skin
menu.
2013-02-17: release 1.4.77
* iOS version: The links in the About view now actually work.
* iOS version: Implemented 'New directory' and 'Delete' in the HTTP Server.
* iOS version: Implemented zip file upload and download in the HTTP Server.
* iOS version: Implemented local program import/export.
* iOS version: Implemented print-out window.
2013-01-06: release 1.4.77
* All versions except iOS: the links in the About boxes now actually work.
2013-01-01: release 1.4.76
* MacOS version: Implemented print-out window.
2012-12-17: release 1.4.75b (iOS only)
* iOS version: Fixed three issues with the HTTP Server (displaying the wrong IP
address, binding to the network incorrectly, and a crash when writing to the
on-screen log).
2012-12-04: release 1.4.75a (iOS only)
* iOS version: Clicking Done on the HTTP Server window could cause the app to
freeze under certain circumstances. Fixed.
2012-11-24: release 1.4.75
* Android version: Implemented haptic feedback option (vibrate on keypress).
2012-10-27: release 1.4.75
* iOS version: In the HTTP Server view, tapping on the server URL switches
between the DNS name and the IP address.
* Linux version: Now uses ALSA to play BEEP and TONE sounds (but not when
running on remote displays).
2012-07-29: release 1.4.74b (Android only)
* Android version: Now writes state file when moved to background.
2012-05-06: release 1.4.74a (Android only)
* Android version: Fixed a couple of bugs that could cause crashes while
printing.
2012-05-05: release 1.4.74
* Decimal version: The overflow fix in 1.4.73 was incorrect. This one works.
2012-05-05: release 1.4.73
* iOS version: Now writes state file when moved to background.
* OFF now refuses to shut down Free42 if there have been no keystrokes since
the application was started. It will stop program execution and display
the message "Suspicious OFF" instead.
This prevents code like LBL "OOPS" SF 11 OFF GTO "OOPS" from locking the
user out.
* Decimal version: Overflows would return zero in some cases, i.e.
9E9999 ENTER +. Fixed.
2012-04-15: release 1.4.72
* Android version: Added "skin smoothing" and "display smoothing" check boxes
in the Preferences view.
2012-04-14: release 1.4.71
* HMS+ and HMS- would return results with the wrong sign under certain
circumstances: result < 0 and |result| < 59 seconds, or result < 0 and
|result| > maximum integer. Fixed.
2012-04-09: release 1.4.70b (Android only)
* Android version: Fixed app manifest so the app no longer obtains the
READ_PHONE_STATE permission, which it never needed anyway.
Some background: Apps targeted at Android 1.5 automatically get
READ_PHONE_STATE and WRITE_EXTERNAL_STORAGE when installed in Android 1.6 or
higher, without the user being told, and this tends to look under-handed to
users who aren't aware of what's going on. Free42 now targets 1.6, which
means it doesn't get any permissions silently.
It does now request WRITE_EXTERNAL_STORAGE, because it needs it for printing
to files and for exporting programs.
Note that the app still runs on 1.5 and later; the requirements for running
it have not changed.
2012-02-12: release 1.4.70a (Android only)
* Android version: Fixed app manifest to make the app work with screens other
than 320x480. This should fix the problem of skins not filling the whole
screen on some devices.
2011-09-18: release 1.4.70
* Fixed several bugs in complex ASIN, ASINH, ACOS, and ACOSH.
* Android version: Better printer icon in the main menu, by Günter Schink.
* MacOS version: OFF didn't work when invoked from a program. Fixed.
2011-06-11: (no new code release)
* Added two new skins to the Android skins package, designed for the Samsung
Galaxy S 9000, which has an 800x480 screen. Contributed by Günter Schink.
2011-05-22: (no new code release)
* Added Free42AndroidSkins.zip package, for skins designed for Android-based
devices; added HTC4800 skin for HTC Desire HD or other Android devices with
480x800 screens. Skin contributed by Michael Vogel, based on an iPhone skin
by Jerrod Hofferth.
2011-04-22: release 1.4.69 (Android only)
* Added "orientation" option in Preferences, allowing the user to lock the app
in landscape or portrait mode.
* Improved the layout of the file selection and Preferences dialogs.
* The file selection dialog no longer disables files that don't match the
filter; it now hides them.
2011-04-20: release 1.4.68
* INVRT did not perform any type checks, leading to badness when it was applied
to anything that wasn't a matrix. Fixed.
2011-04-10: (no new code release)
* Added six new skins to the iPhone skins package. Contributed by Javier
Goizueta.
2011-03-13: release 1.4.67
* ASIN returned incorrect results for large complex arguments. Fixed.
* iOS version: Added support for 640x920 skins.
* Added Silver And Blue skin to Free42PocketPCSkins.zip package. Contributed by
David Geiger.
* The SST and BST key labels were switched in these skins: