--------------------------------------------------------------------------------------------
	PICOTRON VERSION HISTORY
--------------------------------------------------------------------------------------------


	0.1.0h

		Added: PFX6416 effects: tremelo, vibrato, wibble, slide, fade, arps, retrigger, cut, delay, pan
		Added: PFX6416 stereo mixing, + wide instruments (allows nodes to have separate panning position)
		Added: tracker interface: thumbnails, channel output scopes, cursor/playback following, re-order instrument nodes
		Added: tracker can now handle up to 64 instruments, 384 SFXs and 128 patterns
		Added: text editor shortcuts: ctrl+e (end), ctrl+w (staWt), ctrl+up (same as ctrl-home), ctrl+down
		Added: text editor operations: ctrl+b (block comment) ctrl+d (duplicate) shift+enter (add "end" and indent), ctrl+l
		Added: monospace toggle button in code editor's app menu
		Added: file modification events // on_event("modified:/foo.txt", function(msg) end)
		Added: select/copy/paste multiple items (shift+drag/click): sprites, instruments, SFXs, patterns
		Added: gfx editor: batch resize and flag modification, shift to snap shape tools, 1,2 to switch colours
		Added: run command // similar to ctrl-r, but can pass commandline arguments
		Added: "Fullscreen:Window" in settings to be multi-monitor friendly (uses a borderless window)
		Added: memory accounting: max 16MB per process (stat(0)) // total Lua allocations + 4k ram pages allocated on write
		Added: fget / fset supports reading/writing a single bit  // fget(n, b), fset(n, b, val)
		Added: unmap(ud, addr) to unmap only one userdata that may still be mapped elsewhere
		Added: userdata :peek(addr) :poke(addr) // e.g. can fetch("/system/fonts/p8.font"):poke(0x4000)
		Added: map() can take tile_w, tile_h as the last two parameters (integers); defaults to 0x550e, 0x550f
		Added: userdata:row(), userdata:column()
		Added: ord("abc",1,3) multiple return values
		Changed: resonance knob in filter FX tweaked to have a more even distribution of values
		Changed: ctrl+left/right in text editor skips whitespace 
		Changed: memmap(ud, addr) (was memmap(addr, ud) -- that legacy form is still supported)
		Changed: maximum values that can be poked / peeked in a single call: 65536
		Changed: map() does not draw (or charge   for) spr 0 by default // for old behaviour: poke(0x5f36, 0x8)
		Changed: foldback uses a more usual triangle function instead of cosine (sounds similar, but less harmonic junk)
		Changed: many cpu accounting adjustments to get closer to real-world cost
		Optimised: transparent window blits (filenav.p64 on desktop), and pal() calls use less host cpu
		Fixed: crash when blit()ing to a region outside the target, but partially inside source userdata (0.1.0g fix was incomplete)
		Fixed: thread contention slowing down tracker while playing music in pattern mode on low end machines
		Fixed: text editor: doesn't handle trailing newline in selection
 		Fixed: text editor: cursor x position is lost when moving across short lines
		Fixed: text editor: shift-tab on selection does nothing when line starts with spaces instead of tabs
		Fixed: can't use file wrangler from /ram/cart; e.g. file open -> filenav launches terminal instead of /ram/cart
		Fixed: when saving a cart with ctrl+S, files deleted in /ram/cart are not also removed from the rewritten .p64
		Fixed: window{pauseable=false} doesn't disable pausing on Enter for fullscreen apps
		Fixed: changing draw target or display size does not release the old userdata for garbage collection
		Fixed: palt() ignores single integer parameter (is means to act as a 64-bit bitfield)
		Fixed: tline3d crash on tiles that use flip bits // now supports tile flipping
		Fixed: map editor slow when zoomed out and/or there are more than a few layers
		Fixed: can not assign integer userdata element to a real number using flat indexing // get_draw_target()[0] = 9.1
		Fixed: matmul cpu cost is wrong for large matrices (was charging for only w*h multiplies instead of w*h*h)
		Fixed: scalar-userdata operations with scalar on LHS treated as if RHS ((2/vec(1))[0] == 0.5 instead of 2.0
		Fixed: userdata:tranpose() broken for non-square matrices
		Fixed: f64 userdata loses its data type on copy (as reported by :attribs())
		Fixed: resetting a cartridge from the pause menu sometimes kills it
		Fixed: doubletap / doubleclick message firing even when two clicks are far apart
		Fixed: global mute setting not observed
		Fixed: (web) multiple webaudio mixer on reset / open multiple carts in one bbs thread (causes speedup / glitches)


	0.1.0g

		Added: pause menu for fullscreen programs (ENTER -> continue, toggle sound, reset cartridge, exit)
		Added: file extension associations. To specify a default app: default_app vgfx /apps/tools/veditor.p64
		Added: shortcuts: ctrl-home, ctrl-end in code/text editor;  ctrl-a (home) and ctrl-d (delete) in terminal
		Changed: .sfx format and resource loader now stores 256k by default (space for 398 SFX; is backwards compatible)
		Changed: Open File and New File (via app menu) always open in the program that requested it (ref: VisiTrack, VGFX)
		Changed: Can not rename a file over an existing filename in filenav
		Fixed: sometimes boot into an invalid workspace and need to switch back and forth to mend
		Fixed: web player: audio, key(), touch controls (but only P8 buttons for now)
		Fixed: the first file change logged by anywhen each day is stored as the newly written version instead of the old version
		Fixed: stray globals in terminal: k, res, cproj_draw, cproj_update
		Fixed: node output missing in instrument designer
		Fixed: crash when blit()ing from outside of source bitmap // was happening when using magnifying glass at bottom right
		Fixed: magnifying glass drawing black as transparent
		Fixed: btn(), btnp() when no _update() callback exists only works via ctrl-r and not when run directly from desktop / terminal
		Fixed: several types of crackles / discontinuities in audio mixer, mostly relating to echo nodes
		Fixed: SFXs 64 and above are not initialised to "empty" (instead, zeroed data that shows up as C0's)
		Fixed: some ctrl- combinations produce a textinput event. e.g. ctrl-1 // explicitly blocked in events.lua
		Fixed: (Mac) icon is slightly too big
		Fixed: (Mac) Option key not mapped to "alt"
		Fixed: cursor in terminal doesn't wrap with command string
		Fixed: Locked mouse speed is different along X & Y (partial fix)
		Fixed: Moving a folder inside itself causes folder to be deleted
		Fixed: crash if call clip() in _init (before a display is created)


	0.1.0f

		Added: reboot
		Added: logged disk writes for backups / versioning ("anywhen" in settings)
		Added: load cart.p64@2024-04-06_14:00:00 to load a cart from the past (or just @14:00 for short if same day -- local time)
		Added: date() can take a time to convert (string or epoch time) and a delta: date(nil, "2024-02-01_15:00:00", delta_secs)
		Added: stat(87) for timezone delta in seconds (add to local time to get UTC)
		Added: drag and drop host files into picotron (copied to /ram/drop -- not mounted) -> generates a "drop_items" message
		Added: drop a png into gfx editor to load it (colour fits to current display palette)
		Added: filenav: open files or folder on host via app menu ("View in Host OS")
		Added: can fetch .p64 host files directly as binary strings // same semantics as fetching "https://...foo.p64"		
		Added: PICO-8 style string indexing;  ?("abcde")[4] --> "d"    ?("abcde")[02] --> nil
		Added: btnp() repeat rates (follows PICO-8: initial repeat delay: @5f5c, subsequent delays at @5f5d specified at 30fps)
		Added: >>, << operators for integer userdata
		Added: Row markers in tracker pattern view + 
		Added: mouselock(true, event_sensitivity, movement_sensitivity) -- mouselock(false) to disable; dx,dy = mouselock()
		Added: tline3d dev flags (last param): 0x100 skip last pixel; 0x200 apply sub-pixel adjustment // see: /bbs/?tid=141647
		Added: music() fade in and out
		Changed: increased userdata ops per cycle (2x for mul,div,mod; 4x for others) 
		Changed: ls() sorts results with (non-cart) folders first by default
		Changed: renamed create_diff / apply_diff -> create_delta / apply_delta
		Changed: timestamps shown by about.p64 and default tooltray clock show local times
		Changed: when pixel_perfect is off, blitter prescales to 960x540 (still quite blurry though)
		Changed: screenshots stored to /desktop/host -- a folder automatically mounted on host at {Desktop}/picotron_desktop
		Changed: cp, mv take -f flags (required if copying over an existing folder / cartridge)
		Fixed: trailing slash for folders on tab complete in filenav, terminal
		Fixed: delete key + AltGr not working in terminal
		Fixed: tracker note keys using mapped key names -- should be raw scancode layout
		Fixed: tracker knobs hard to use when close to edge of the screen (now using mouselock and finer sensitivity)
		Fixed: using keyboard controls while a game controller is plugged in causes ghost button presses
		Fixed: ceil(1.0) returns 2 ._.
		Fixed: crash on multiplying userdata by scalar on LHS //  ?(tostring (1 * vec(1, 1, 1)))
		Fixed: redundant cartridge file flushing (writes that happen within 300ms are now batched)
		Fixed: search for an empty spot on desktop to create dropped files
		Fixed: key() / keyp() returns false when received keyup and keydown messages in same frame (should be true for 1 frame)
		Fixed: keyboard btn() responds to keypress one frame late
		Fixed: memmap(0x8000) crashes // update: can't unmap pages like this, can only unmap by userdata: unmap(ud)
		Fixed: high dpi display modes blurry [not sure if will be fixed in 0.1.0f]
		Fixed: fetching https:// forces url to be lowercase
		Fixed: LFO phase knob ignored


	0.1.0e

		Added: sfx tracker: undo / selections / copy + paste single instruments / track data / patterns
		Added: gfx bank selection in map editor
		Added: pixel_perfect x stretch: each axis separately uses largest integer multiple that fits
		Added: hold down ctrl x 2 to boot into terminal (useful for recovering from borked configurations)
		Added: create new tab flow: guess file extension from other files in the target folder when none is given
		Added: home/end/ctrl+e in terminal to control cursor position
		Changed: palt(1) sets colour 0 as transparent, not 63 (departure from P8 style)
		Fixed: double listings of .p64 files in /
		Fixed: host folders called foo.p64 collapse back into .p64 files on save (but still happens on mv / cp)
		Fixed: flip bits not observed when drawing with map()
		Fixed: map editor draws an out of bounds row and column at bottom and right
		Fixed: workspace icons lose transparency after using magnifying glass
		Fixed: \n\r pasted from windows creates overlapping lines in code editor (now filtered out)
		Fixed: host keypresses getting through to Picotron (alt+tab, ctrl+alt+left/right)
		Fixed: filenav crashes when actioning intention with a filename that can not be resolved
		Fixed: can not use AltGR during text entry 
		Fixed: default key mappings: command keys & delete were missing in 0.1.0d
		Fixed: bad keycodes.pod / scancodes.pod format causes wm crash on boot

	0.1.0d

		Added: default keyboard mapping for key()/keyp() uses host OS layout by default
		Added: can map multiple physical keys to a single virtual key
		Added: sfx len (becomes loop0 when loop1 > len)
		Added: warning on startup when the /system version does not match the build version
		Changed: about.p64 now shows/edits the metadata of /ram/cart by default (i.e. just type: about)
		Changed: rename triplane.p64 to biplane.p64 (need to re-select it again from wallpapers)
		Fixed: /system rom in 0.1.0c was the wrong version! (caused map drawing and other things to break)
		Fixed: (Windows) rm does not delete host folders 
		Fixed: (Mac) crashes after ~13.5 minutes
		Fixed: host system user data paths are clipped at non-ascii characters
		
	0.1.0c

		Added: custom map tile sizes (taken from sprite 0)
		Added: layer naming and ordering (the first layer in the list is now drawn on top)
		Added: mget(), mset(), ceil()
		Added: async remote fetch (put it in a coroutine)
		Added: /system/util: shutdown pwd info
		Added: right click on desktop to create new file / get file info
		Added: /appdata/system/keycodes.pod to map virtual key (to a raw name or directly to scancode)
			// store("/appdata/system/keycodes.pod", {a="q",z="w",q="a",w="z",m=51})
		Added: future version checking; a separate runtime version number is stored with each cart.
		Added: delete file menu item in filenav (moves a single file to /ram/compost)
		Added: send_message(pid, {msg=..., _delay = 2}) to send a delayed message (_delay is in seconds)		
		Changed: filenames can contain hyphens
		Changed: terminal searches for commands in current path /after/ standard paths (/system/util, ..)
		Changed: added more undo checkpoints to the text editor
		Changed: gui elements must explicitly :set_keyboard_focus(true) on click to consume textinput events
		Changed: screenshots and untitled cart filenames are given an integer suffix to reduce collisions 
		Changed: when saving a file with no extension, wrangler automatically adds the default filename extension
		Changed: track (sfx) length can be specified pico-8 style by increasing loop0 (memory layout doesn't change)
		Fixed: load #bbs_id twice over the same local file -> fails to unmount the first cartridge
		Fixed: audio lock causing random crashes on Mac (tentative ~ not sure if that was the cause or the only cause)
		Fixed: cp allows copying to inside self (-> crash; e.g. when save cart to /ram/cart)
		Fixed: reset() does not reset scanline palette selection bits at 0x5400
		Fixed: (Mac) vertical red line junk on letterboxed area in fullscreen mode
		Fixed: (Windows) printh doesn't send anything to terminal
		Fixed: drop file into a folder exactly when it opens --> hard freeze (wm crashes)
		Fixed: when dragging files and move mouse quickly, offset from mouse doesn't match original position
		Fixed: flr("garbage") causes runtime error (should return 0 to match PICO-8 behaviour)
		Fixed: text editor operations (undo, indent, double click select) stop working after using search
		Fixed: width/height fields dump earlier keypress junk + no way to delete characters
		Fixed: msg.has_pointer not always set when it should be (--> cursor not changing on window title)
		Fixed: msg.mx, msg.my absolute values for draw callbacks; should be relative to gui element 
		Fixed: no printh output under Windows (switched to using SDL_Log)
		Fixed: ctrl+6 screenshot while in video mode 3 or 4 is not scaled to cover the 480x270 output
		Fixed: flashing when windowed cartridge runs at < 60fps with a custom display palette (e.g. inst editor)
		Fixed: flashing when video mode 3 or 4 running at < 60fps
		Fixed: filenav selects .loc files (drive.loc) as target to save over instead of opening it like a folder
		Fixed: corrupted /desktop/drive.loc due to aforementioned bug -- now automatically mended on startup
		Fixed: run bells.p64 and then enter tracker -> audio is mixed from left over junk state 
		Fixed: note entry sometimes does not play in pattern editing mode 
		Fixed: can edit track that is not currently visible
		Fixed: ASDR release is calculated incorrectly (is way too long) when played in track view
		Fixed: clipping: tline3d (w is wrong), spr() when flipped


	0.1.0b

		Added: system event logging in log.txt (same folder as picotron_config.txt)
		Added: /appdata/system/scancodes.pod to remap physical key scancode
				// e.g. store("/appdata/system/scancodes.pod", {lctrl=57})
		Changed: apple option / windows menu keys are mapped to "ctrl"
		Fixed: Default mapping of lctrl is wrong
		Fixed: Windows file saving generating corrupt data (opened in text instead of binary mode)
		Fixed: Crash when reading corrupted lz4 pods -- now returns a nil object 
				// (& deals with existing corrupt settings.pod)
		Fixed: Windows BSOD on boot
		Fixed: Button mappings wrong for controller index 1 and above


	0.1.0 First release of binaries