Category Archives: FileSystem

Finding the Finder

Recently, somebody was asking on Emaculation forums, what would happen if Apple’s Finder would be attempted to run in M.A.C.E.? That was an interesting question, which motivated us to try it out.

Mac System Software architecture

To think about what would make Finder work, let’s consider the classic Mac system software as an architecture consisting of roughly three layers (in real Macs):

  • ROM: Most of Toolbox APIs, ROM resources and stage 0 boot loader.
  • System: Patches to ROM, extensions, system zone, the so-called “kernel” of old MacOS.
  • Finder: The “desktop metaphor” front-end running as a regular Mac application.

This categorization is very naïve, does not consider details such as role of hard drive drivers in boot process, etc. Additionally, M.A.C.E. combines roles of ROM and System as a single entity implemented in native code.

The interesting part to highlight is how Finder is basically “just another” application running on the System, and was even replaced by alternate startup applications on the old Macs (such as MiniFinder, MultiFinder, or other applications using the “Set Startup” option). As such, especially on System 6.x and older, the undocumented dependencies between System and Finder might be few in number, if any.

The first run

So, the question was, what would happen if we would try to run it? Well, we got this far on the first attempt, and with a couple minor fixes to progress further:

So, almost there. What we needed was a couple new (missing) routines and some fixes:

  • Fixed the 0x16 and 0x17 csCodes for .NativeFS driver, which return the logical/physical ICN# data for the volume icon (as seen on the desktop). We actually had that icon already one year ago, but this was the first time anything wanted to access it. 🙂
  • Added working directory indexing to GetWDInfo, which Finder uses to close all open working directories, presumably left open by misbehaving applications under System 6.x.
  • Fixed a buffer overflow bug in GetVolInfo (in volume name).
  • Implemented File locking APIs, which Finder wants to use to maintain the Desktop file.

Getting to the desktop

After a long and tedious session of debugging, it was discovered that due to a stupid bug in GetWDInfo Finder was crashing upon attempting to enumerate volumes. After that fix, we got nice Finder desktop, and a lot of functionality already working:

Operating on the Finder windows added need to implement a couple other missing traps, although as dummy versions for now (SetCatInfo and SetVolInfo, which Finder attempts to use to write metadata about modifications done in the spatial finder windows, icons, etc). Some points:

  • Finder and system icons appear as documents, but that might be because those don’t yet exist in the System file. Not sure about that yet.
  • It’s nice to see how a Finder 6.1.8 from Apple’s real System 6.0.7 behaves nicely even though M.A.C.E. System declares being version 7.0. 🙂
  • For some reason, doing “Get Info” on our Hard Drive turns our custom icon returned by the .NativeFS DRVR to a generic floppy icon.
  • It’s interesting how Finder considers at the moment our custom Hard Drive as “AppleTalk” device, but that might be because we’re hooking into the ExtFS file manager hooks which *I think* were used by AppleTalk in the real System 6.x. Just another thing which needs more investigation.
  • The modification and creation dates shown in “Get Info” (and list-style finder windows) use International Utilities date & time formatting functions, which are still placeholders. And as such, they only display mostly the numeric value of date-time instead of the proper, human-readable format.

Making the Desktop file work

At this point, we didn’t yet get the proper application and document icons to appear, so we did a bit more debugging on what was happening with the Desktop file – which Finder uses to keep track of known application creator & types, file comments, etc. It turned out, that we accidentally had all the “hasBundle” (0x2000) bits turned off in applications, which is why they were not detected by Finder.

As this issue was fixed, Finder started to process the applications properly, and quickly needed a some improvements to Resource Manager APIs. Mostly, it wanted to use UniqueID to allocate unique IDs for resources inside the Desktop file’s resource fork (to avoid conflicts). After that, updating Desktop file seems to work quite nicely, resulting in some fancy icons now appearing in the Finder under M.A.C.E.:

For now, running the real Finder remains as a curiosity, but nevertheless works as a great test case for a various number of Toolbox File Manager APIs which still need work (among some other minor bugs). The summary of the major known issues is:

  • The launching of programs “almost” works. Everything else appears to be fine, but it suffers from the same issue as previously found out using the “Transfer” command in THINK Pascal: The Font Manager data caches do not clear completely, leaving some dangling handles/pointers to the old application zone, which cause crash on attempting to reference them after the zone has been reinitialized for the new application.
  • Getting back to Finder (or any shell) is not yet possible, as ExitToShell is still hard-coded to terminate the entire emulator, instead of launching LMGetFinderName() application. Getting this to work would also encourage researching the Emscripten and Process Manager compatibility, as all of those features share a common need for a better in-emulator process management.
  • SetCatInfo/SetVolInfo are still dummy placeholders, so Finder is trying to use them to update metadata, though it is not yet saved.
  • Folder creation (_DirCreate), File/Folder deletion (_Delete), renaming (_Rename) are not yet implemented, so attempting those operations on Finder will still fail.
  • The _Eject trap is not yet implemented (and in any case you will not be able to eject the NativeFS drives).
  • As previously pointed out, Date & Time formatting does not yet work
  • The “Rebuild Desktop” operation (though using option + cmd keys at startup) does not yet seem to do the actual rebuild on a “fresh” start (i.e. if Desktop file has been wiped). Additionally, attempting that operation while old Desktop file exist will error out because _Delete is unimplemented, and old file cannot be removed out of the way.
  • Maybe other issues too, those are just the ones found out in the quick testing.

The “generic” M.A.C.E. environment might benefit of this though, as a replacement shell and/or program launcher, that could be optionally used by the end-user.

Full list of changes since last post

2019-12-12 18:19:41 +0200 • Add UniqueID/…1ID, to allow Desktop file updates
2019-12-12 17:49:18 +0200 • Add Disk Initialization Pack2 to keep Finder happy
2019-12-12 17:46:55 +0200 • Fix byteswap bug in NativeFS _Allocate handler
2019-12-12 15:00:12 +0200 • Add missing NativeFS.c changes for previous commit
2019-12-12 04:34:28 +0200 • Add dummy SetCatInfo and SetVolInfo selectors
2019-12-12 04:02:48 +0200 • Fix GetWDInfo bug (ioVRefNum & ioWDVRefNum mixed)
2019-12-09 02:58:47 +0200 • Fix memFullErr check in SetApplLimit
2019-12-08 06:31:06 +0200 • Fix filename overflow in GetVolInfo NativeFS call
2019-12-08 06:30:06 +0200 • Implemented CloseWD
2019-12-08 06:29:03 +0200 • Add WD indexing to GetWDInfo
2019-12-08 06:27:20 +0200 • Add Finder test app to cmake configs
2019-12-08 06:27:01 +0200 • Implement icon csCodes in NativeFS Control call
2019-12-08 06:25:52 +0200 • Make more macros in memory manager MSVC friendly
2019-12-08 06:25:18 +0200 • Add dummy SetFilLock and RstFilLock
2019-12-08 06:23:36 +0200 • Fix FinderName lowmem global
2019-12-06 23:44:06 +0200 • Add Bash Big Blue to cmake config for testing
2019-12-04 21:21:36 +0200 • Fix QD_LOG to respect debug settings
2019-12-04 20:48:17 +0200 • Add Cairo ShootOut! to cmake config for testing
2019-11-30 02:02:05 +0200 • Fix empty VA_ARGS problem in MaceLog macro
2019-11-29 23:55:30 +0000 • Make SWAP and MIN/MAX macros MSVC compatible
2019-11-29 23:54:08 +0000 • Made vararg ellipsis parameters MSVC compatible
2019-11-29 23:52:21 +0000 • Make Memory Manager return macros MSVC compatible
2019-11-29 23:51:27 +0000 • Make ROMScratch macros MSVC compatible
2019-11-29 23:50:08 +0000 • Move SwapPoint to MacQuickDraw.h to make it inline
2019-11-29 23:48:05 +0000 • Change void* to UInt8* in fake ROM (for MSVC)
2019-11-29 23:46:50 +0000 • Make SANE conversion macros MSVC compatible
2019-11-29 23:33:03 +0000 • Merge branch 'master' of
2019-11-29 23:32:43 +0000 • WinAPI EndianXX_Swap macros
2019-11-30 01:30:54 +0200 • Add UInt128 type to EmuMacTypes.h

SoftPC (and the quest for the XT memory map)

Before Macintosh was created, there was a computer architecture called IBM PC. With Intel 8086 processor, it was incompatible with the Motorola 68000 family used in Macintosh computers – and thus, no IBM PC software would work in Macintosh. But there were some really smart people, who created a special application called SoftPC in mid-80’s, which interpreted Intel’s x86 instructions on the fly, and emulated enough PC architecture and BIOS ROM to allow those programs to run on Macintosh. And now, SoftPC finally also works on M.A.C.E.

SoftPC 2.51 architecture

The version of SoftPC we got to run is 2.51, which happened to be compatible with the “Classic”-type 68000 Macintosh computers, one which M.A.C.E. aims to emulate in the Phase 1. That is, it works on 68000 processor, supports the 1-bit “classic” QuickDraw on 512×342 screen, and appears to be compatible with System 6 level Toolbox calls.

The IBM PC architecture which SoftPC 2.51 emulates is IBM XT with 640 kilobytes of RAM, and a CGA monochrome display. It also supports two serial ports (although M.A.C.E. serial port drivers are still unfinished to try them out), a printer port (no printing support for us yet), two hard drives (through disk images), and two physical floppy drives (which we don’t either emulate yet).

The XT memory map

The challenging part of getting SoftPC to work was ingenious way it emulates the PC memory map. As everybody knows, IBM PC has physically 20-bit addressing scheme (through 16-bit segment and offset register pairs, which give 4+16 bits of usable virtual address space, as there is overlap between segments). This 20 bits equals 2^20 = 1048576, or 1 megabyte of address space. What SoftPC does, is that it allocates this entire 1 megabyte area to be linearly accessible throughout the physical Macintosh address space, but it saves memory by allowing this area to have “holes” in it for the non-used areas of the PC memory map. This is basically the layout it creates:

  • 000000-09FFFF: RAM
  • 0A0000-0B7FFF: hole
  • 0B8000-0DDFFF: CGA video memory
  • 0DE000-0EFFFF: hole
  • 0F0000-0F4FFF: ROM BIOS #1
  • 0F5000-0FDFFF: hole
  • 0FE000-100000: ROM BIOS #2

The steps it uses to ensure this linear layout is created is quite unique, and a good challenge to test the memory manager implementation:

  1. For starters, the availability of large enough linear memory space is ensured by doing allocation of 1048576+32 bytes of memory using NewPtr. If this fails, it will know that there won’t be enough memory.
  2. The allocated space is shrunk down to the 640K+32 RAM size using SetPtrSize. (The 32 bytes extra is used for aligning the actual addresses inside allocations to 16-byte boundaries for apparently memory access speed optimization on later Macs).
  3. The three other blocks (CGA memory and two ROM areas) are allocated at correct locations using the following algorithm:
    1. The size of “hole” preceding the allocation is calculated. For example, having video memory at B8000 would leave 18000 bytes space between A0000 and B8000.
    2. Two pointers are allocated after each other using NewPtr: one for the hole (using calculated hole size), and the actual memory block (+32 bytes for alignment).
    3. Now this is where the magic happens: If the latter allocated block’s start would not be within alignment range of the required offset (in CGA case B8000) from start of RAM (the 640K block), the size of hole would be decremented with 16 bytes, the two blocks would be disposed, and allocation re-attempted at step 3-2.
    4. After repeating steps 3-2 through 3-3 enough so that required range is reached, the pointer to the allocated hole block is saved, and next one of the three blocks is allocated starting from step 3-1. (It should be noted, that because of a very minor bug in M.A.C.E. memory manager, the allocation size failed to decrease, and this loop would be terminated after 64 attempts, with incorrect block left allocated.)
  4. After all three blocks have been allocated at correct offsets, the holes preceding each of them would be disposed using DisposePtr. This part of process leaves space inside the emulated PC address space, which the Toolbox can use for any regular memory allocations – pointers and handles, even resources. It is not 100% certain, but it may be that SoftPC may optimize performance in such way, that writing to PC address space at these holes might actually even cause native memory to get corrupted, BUT for now we did not try to see if that might happen.

The issue with Memory Manager in step 3-4 was, that as the DisposePtr call on the two blocks actually creates two adjacent “free” blocks, the allocation of new block using NewPtr right after that with only 16 bytes smaller size, would actually not return a physical block with smaller size. This was, because the block allocation routine checks if the space between allocated and next block would be less than minimum allowed block size (for creating new “free” block between allocation and next block), it would actually merge that small bit of space back to the physical allocation. The bug in Memory Manager was, that the when allocating block in free space, it was supposed to always merge the next “free” block after the allocation, and slice the new “free” space from that. A real Mac merges only one extra “free” block after allocation, but in M.A.C.E. for simplicity we fixed this by merging all free space in one run, thus at the same time reducing clutter of having many adjacent free blocks.

With this fix in Memory Manager, SoftPC is now finally able to boot up. Thanks to the Standard File Package implemented earlier this autumn, we could not only configure the hard disk image (C:/), but also set up a “shared” network disk (E:/) through a folder inside emulated Mac file system. This allows easy access of files (and thus DOS applications) from the M.A.C.E. file system, including some games. The shared disk access routines, however, surfaced luckily a couple File Manager bugs, related to the ioNamePtr handling in _GetCatInfo and _GetFileInfo calls, which possibly also improve compatibility of other applications too.

Screenshots

Below are some screenshots of the configuration dialogs of SoftPC (click for larger image):

And here is DIR command output right after booting up:

Also, there was GWBASIC included with the DOS installation, so we can run GWBASIC compatible BASIC programs:

And also some games work nicely. The Monochrome CGA emulation has interesting approach of emulating the 320×200 resolution with 1.5x scaling as 480×300 pixel bitmap display. The four CGA colors are also mapped into distinct vertical stripe patterns, which might also have been used on some old monochrome CGA displays:

Of the two above games, SOPWITH appears to be quite responsive and playable, but ALLEYCAT controls are very laggy. Also Sierra adventure games seem to run:

The Black Cauldron (pictured above) seems to work just fine, although for some reason the function keys were not working, while they did work in GWBASIC earlier (opening of doors with F6, for example). Also, none of the games produced any sound although the SoftPC boot beep works, so it might be that SoftPC may lack actual PC speaker emulation in this particular version (beyond the beep).

Other issue that we also fixed while working on this was a bug in Scrap Manager, which caused the clipboard to misbehave when working in “on-disk” mode (after _UnloadScrap was called). This allows Copy-Paste operations to work nicely in SoftPC, and it also improves clipboard functionality in other applications.

Only remaining issue with SoftPC is that some routine, possibly in SANE and most likely related to converting PC date & time, is causing divide overflow error to popup at random times, which appears to be related to the actual date & time. This needs to be investigated still at later point.

Full list of changes since last post

2019-11-27 00:34:43 +0200 • Fix a Scrap Manager bugs, fixes SoftPC copy+paste 
2019-11-26 23:06:55 +0200 • Fix ioDirFlag to be 4 which appears to be correct 
2019-11-26 23:06:27 +0200 • Don't crash on invalid zone in Handle validation  
2019-11-26 04:01:31 +0200 • Fix register-based 68k->native UPP calls' D0 nuke 
2019-11-26 03:57:20 +0200 • Don't overwrite *ioNamePtr if not indexing files  
2019-11-22 03:41:15 +0200 • Add FREMS selector to SANE's FP68K dispatcher     
2019-11-22 03:40:22 +0200 • Force merge of free blocks at end of BlockFindSize
2019-11-19 22:59:13 +0200 • Fix bug where everything left of a list got erased
2019-11-19 22:55:27 +0200 • Redraw modified cell in LSetCell                  
2019-11-19 01:42:03 +0200 • Add support 23 new native 68k exception handlers  

Continuum + two other new apps & bundle write support

It’s not that long since the previous news update, but there are a couple changes that are especially important:

Application bundle writable file system support

One problem with the app bundles was that by nature, their contents have read-only privileges to prevent unwanted modifications. However, as the emulator’s virtual filesystem needs to be able to not only create new files, but also modify existing ones (such as highscore saving in ZeroGravity and Continuum), using the files directory from inside the app bundle was not suitable.

To make the virtual file system writable, the emulator now relocates it to a safely writable location at /Users/<username>/Library/Application Support/MACE/<application-name>/vfs. This has a couple of neat features:

  • On every launch, any original files which are either not present or zero-length are copied from the app bundle to the writable location. This includes the initial launch, during which the entire filesystem gets replicated there.
  • Holding down the “Shift” key performs a “soft-reset” of the writable filesystem, meaning that all originals files are replicated even if they exist already in the writable filesystem. This is handy in cases if the original system or application files get damaged and would cause the emulation to fail to start. NOTE: There is not yet any prompt when performing the “soft-reset”, but there is plan to add a confirmation dialog (including a option for “hard-reset” feature) later at some time.
  • Any files modified or saved by user are fully accessible through this folder in AppleDouble format, which can be exchanged between applications and/or other emulators (or with appropriate conversion, real Macs).

MacOS Catalina support tweaks

As the new macOS Catalina was released recently, it was discovered that there was a unnecessary privilege used by the SDL2: It was listening to background key presses solely to track state of the caps lock key. Luckily, there was already a patch for this issue in SDL 2.0.10, so updating the SDL2 library (and adjusting some caps lock support code) fixed this problem.

(Please note that there will still be warning for unsigned applications, as to remove this Apple requires not only signing, but since 10.15 also notarization of any downloaded MacOS applications, both which require the paid Apple Developer Program membership.)

New test application: Continuum 1.04

Thanks to the personal permission by Brian Wilson, in combination with the writable bundle support we added this weekend, we have now Continuum 1.04 available as a fully functional MACE app bundle (including planet editor):

You can try the game out by visiting the downloads section. If you would like to know more about Continuum and its history, you can also visit the Continuum web page Brian Wilson has created here.

Other new test applications: Mac Concentration and GunShy 1.3

Thanks to the small fix done to the bug in SANE FP68K trap’s FMULD selector, Mac Concentration now works perfectly (it was previously stuck in game board generation loop due to the messed up multiplication results).

With the writable file system support, GunShy 1.3 is also finally feature-complete as a application bundle, as players need to be able to save & load games.

Like Continuum, these two new app bundles are available freely for trying out in the downloads section.

Full list of changes since last post

2019-10-27 07:49:25 +0200 • Relocate VFS to writable path on Mac OS X startup 
2019-10-27 04:52:17 +0200 • Update Alice, Continuum and GunShy JSON configs   
2019-10-27 04:45:56 +0200 • Adjust CapsLock check to work with new SDL version
2019-10-27 04:44:03 +0200 • Update to SDL2.0.10 to remove scary Catalina popup
2019-10-27 04:21:42 +0200 • Tweak InvalRgn/InvalRect to work better in Conti..
2019-10-26 05:17:58 +0300 • Update cmake JSON config for MacConcentration     
2019-10-26 04:25:41 +0300 • Adjust VBL routine call order for sound refresh   
2019-10-26 03:50:40 +0300 • Fix FMULD bug (param1 not assigned correctly) 

Standard File Package

It’s been quite a while since last update, which is due to combination of us being busy real-life jobs, and focusing work on this project on a monolithic feature, which in this case is nothing less than getting the Standard File Package to work!

Features

This is list of the features which the M.A.C.E. Standard File Package emulation is currently capable of:

  • All 8 selectors for Pack3 (SFPutFile, SFGetFile, SFPPutFile, SFPGetFile, StandardPutFile, StandardGetFile, CustomPutFile, & CustomGetFile). The ones tested are highlighted, but others should work too.
  • Support for custom file dialogs (with assorted hacks to convert MFS-style dialogs, such as the “Save” dialog in MS-BASIC 2.00, to the new HFS-style format)
  • Supports both SFReply and StandardFileReply outputs
  • File listing using List Manager, which displays currently System 6-style SICNs, but with System 7.1+ style spacing (later expandable to use the real icons, when we get Desktop Manager interface)
  • Path popup menu, visually and functionally like on real System 7.x
  • Desktop folder support
  • Focus on selected items (including file list with highlight frame), alterable by mouse or tab key
  • Most of common SF key shortcuts: Clipboard shortcuts, Cmd+S (Save), Cmd+O (Open), Cmd+N (New folder), Cmd+D (Go to desktop), Cmd+Up (Go to parent), Cmd+Shift+Up (Go to root/desktop), Cmd+Down (Open folder), (Cmd+Left/Right to browse volumes not yet implemented)
  • Filename field input filtering (prevents “:” from being used in filenames, which is path separator). Also, copy-pasted filenames will be filtered with proper alert messages.
  • Most of SF items/hooks implemented:
    • Items: sfItemOpenButton, sfItemCancelButton, sfItemVolumeUser, sfItemEjectButton, sfItemDesktopButton, sfItemFileListUser, sfItemPopUpMenuUser, sfItemDividerLinePict, sfItemFileNameTextEdit, sfItemPromptStaticText, sfItemNewFolderUser,
    • Hooks: sfHookFirstCall, sfHookCharOffset, sfHookNullEvent, sfHookRebuildList, sfHookFolderPopUp, sfHookOpenFolder, sfHookLastCall, sfHookGoToDesktop
    • Not yet implemented: sfHookOpenAlias, sfHookGoToAliasTarget, sfHookGoToNextDrive, sfHookGoToPrevDrive, sfHookChangeSelection, sfHookSetActiveOffset
  • File type filtering supported, both by typeList and FileFilterProc
A GIF animation showing the progress done in the past month, from scratch to the latest version

Known issues

Although most of the Standard File Package is functional, and usable, there are still some issues left:

  • Because DirCreate is not yet implemented in NativeFS layer, FindFolder cannot create the Desktop Folder/Trash folders to the file system, thus at least Desktop Folder needs to exist to allow access to “Desktop” level in the SF dialogs. This also prevents “New folder” from actually creating the folders.
  • Eject button does not yet do anything, as the NativeFS volumes are non-ejectable
  • There are minor differences to real System 7.x style SF dialogs, for example with certain elements being a few pixels off their intended locations, and popup menu’s width not always expanding
  • Some custom dialogs don’t yet work exactly as they should, for example THINK Pascal 4.0 “Add files” dialog erases left edge of the applications own custom list located below the SF file list, and for some reason it allows attempts to add folders as source files…
  • Location of the SF dialog is sometimes not correct (for example, Railroad Tycoon’s “Save game” dialog is partially under the menu bar)
  • We cannot yet create app bundles for the currently working freeware/shareware applications that use StandardFile, because when sandboxed the bundle file system is read-only, and thus attempting to save anything to it would straight out fail. To work around this, we need to implement certain changes to the way file system in bundled applications is handled, but we are already working on that for the next release

Other improvements made for Standard File

There were a couple features that were implemented as part of Standard File Package implementation, some of which were necessary to make it work

NativeFS AVL tree balancing and iteration support

One important feature was the need for catalog iteration, which is used by Standard File dialogs to enumerate the files in current folder to be displayed in the file list. This allows for example GetCatInfo to use ioFDirIndex in the parameter block to index specific files inside given directory.

Also, this gave a good excuse to finally implement the actual AVL balancing algorithm in the NativeFS file system, which until now had behaved mostly as a dummy binary tree. Below is a screenshot of how the file system structure was changed by the balancing algorithm:

“Before” and “After” debug visualizations of the NativeFS binary tree data structure (click for larger view)

On the right-hand side, is the unbalanced “dummy” binary tree, and on left-hand side is the same file system, when using AVL balancing algorithm to do the insertions. The deepest nodes were reduced from, in this case, from way over 100+ key comparisons into a rough maximum of 10+.

Popup Menu Control

One important feature of the HFS-style Standard File dialogs is the navigation aid provided by the path popup menu. For this, the Popup Menu Control CDEF 63 was implemented. On real Macs, this was originally part of Communications Toolbox, before it was merged to the System 7.x at some point. The Standard File dialogs use only a subset of its features, but foundation for most use cases was built at the same time, so taking it into more common use should be quite easy. As it uses the Menu Manager’s PopUpMenuSelect trap call, the actual menu selection was already there.

One fun and tricky part though was the need to add MDEF “wrapper” for SF popup path menu, to ensure that the opened popup menu would never be narrower than width of the popup control. To do this, the control imitates how the real Macs did this by adding temporarily a MDEF “wrapper”, which injects modified menuWidth value to the menu after it receives a mSizeMsg message from the Menu Manager, thus modifying the resulting popup menu size.

Picture Button Control

The CDEF 61, picture button, was implemented just to allow adding the “New folder” button to the “put” dialogs. It is quite simple, at least in monochrome version, just drawing a PICT resource as content of a regular push button

Dialog Manager improvements

The StdFilter, which is also used by Standard File dialogs, was improved to add features used by it:

  • Outlining default button with FrameRoundRect
  • Handle “cancel” item’s shortcut key as escape/cmd+dot
  • Track cursor to turn it into i-beam over enabled textedit fields
  • Handle update events for default items

Also, the default shortcut keys (Cmd+X/C/V for Cut/Copy/Paste) were also implemented in DialogSelect trap.

Other news: 68020/68040 support

In other news, Pukka has also been busy adding 68020/68040 support, which includes:

  • Bitfield instructions (bfins, bfset, bftst, bfchg, bfclr, bfextu, bfffo)
  • cas2.b/w/l instruction
  • divs.l/divu.l 32-bit division instructions
  • move16 instruction for 68040
  • Disassembler support for the new and improved instructions
  • Various other improvements

Full list of changes since last post

2019-10-21 02:25:22 +0300 • GetResource falls back to TopMap if CurMap invalid
2019-10-20 23:00:18 +0300 • Fix byteswap bug in LDEF -4000 (item font & size) 
2019-10-19 21:44:23 +0300 • Update ArmorAlley JSON config, it now almost works
2019-10-19 02:18:39 +0300 • Fix _Allocate, use ioFRefNum/FCB to get the vcbPtr
2019-10-19 02:06:57 +0300 • Make MemoryManager allocation alignment adjustable
2019-10-19 01:54:24 +0300 • Fix AddResource bug, ResErr not cleared on success
2019-10-19 01:44:31 +0300 • Implemented RmveResource                          
2019-10-18 17:44:45 +0300 • Set ioFDirIndex for GetCatInfo in SF popup refresh
2019-10-18 17:21:28 +0300 • Desktop folder support improved in SFUpdateReply  
2019-10-18 17:08:07 +0300 • Show files in Desktop Folders on desktop          
2019-10-18 16:25:39 +0300 • Update StdFile Eject button enable/disable state  
2019-10-18 03:39:11 +0300 • Close app resource file on exit from emulator     
2019-10-18 03:07:05 +0300 • Draw CDEF 63 popup triangle & hack to resize menu 
2019-10-17 00:07:14 +0300 • Fix StdFile dirID byteswap bug for popup menu item
2019-10-17 00:05:13 +0300 • Rough proto of autoTrack to CDEF 63 popup tracking
2019-10-16 23:28:35 +0300 • Add sfHookFolderPopUp trigger & handler to StdFile
2019-10-16 23:27:14 +0300 • Implement testCntl in CDEF 63 (& refactor headers)
2019-10-16 22:47:54 +0300 • Merge branch 'master' of  
2019-10-16 22:47:13 +0300 • Fix popup menu creation (fix title & set icon cmd)
2019-10-16 22:45:09 +0300 • Work on CDEF 63 (draw menu in the control)        
2019-10-16 22:44:10 +0300 • Implement mDrawItemMsg in MDEF 0                  
2019-10-16 22:40:13 +0300 • fix initializing 68040 processor type and linkin..
2019-10-16 04:50:31 +0300 • Implement mCalcItemMsg in MDEF 0                  
2019-10-16 03:59:46 +0300 • Implement calculation of popup bounds in CDEF 63  
2019-10-16 03:58:56 +0300 • Make Mac_GetMenu visible in public headers        
2019-10-16 03:58:31 +0300 • Fix bugs in StdFile path popup folder iteration   
2019-10-15 02:25:13 +0300 • Work on CDEF 63 init, dispose and calc messages   
2019-10-14 21:40:29 +0300 • disassembler fixes and support for bit field ins..
2019-10-14 02:50:31 +0300 • Work on CDEF 63: Init StdFile dir popup contents  
2019-10-13 07:21:56 +0300 • Fix filename in GetFileInfo for ioFDirIndex > 0   
2019-10-12 23:57:53 +0300 • Fix old-style StdFile filelist bounds byteswap bug
2019-10-12 23:56:36 +0300 • Fix ioFDirIndex>0 case for GetFileInfo in NativeFS
2019-10-12 04:29:25 +0300 • "New folder" dialog added, and many fixes & tweaks
2019-10-12 02:09:45 +0300 • Cmd+Down in SF & fix list arrow when no selection 
2019-10-11 22:40:18 +0300 • Handle Cmd+S, Cmd+O, cmd+D and cmd+N in StdFile   
2019-10-11 22:21:15 +0300 • Fix crash in CDEF 61 dispCntl message handler     
2019-10-11 05:12:59 +0300 • Enable "new folder" button in StdFile put dialogs 
2019-10-11 05:11:37 +0300 • Implemented CDEF 61 ('PICT' button control for SF)
2019-10-11 02:44:50 +0300 • Don't try to go to the parent of Desktop          
2019-10-11 02:39:49 +0300 • Open parent with cmd+up, desktop with cmd+shift+up
2019-10-11 01:49:34 +0300 • Implement cut/copy/paste handling in DialogSelect 
2019-10-11 00:08:41 +0300 • Fix inverted zonecheck result in handle validation
2019-10-11 00:06:45 +0300 • Finish IsCmdChar implementation (& fix signature) 
2019-10-11 00:05:16 +0300 • Fix KCHR load from ROM (RomMapInsert & TmpResLoad)
2019-10-10 22:27:30 +0300 • Cache KCHR 0 in script manager expand mem globals 
2019-10-10 10:32:50 +0300 • Handle escape key in StdFilter                    
2019-10-10 10:32:26 +0300 • Add dummy IsCmdChar to ScriptUtil dispatcher      
2019-10-10 02:43:08 +0300 • Handle iBeam cursor in StdFilter null/updateEvents
2019-10-10 02:25:40 +0300 • Frame default button in StdFilter (also disabled) 
2019-10-10 01:53:25 +0300 • Handle desktop folder and related buttons         
2019-10-09 22:58:06 +0300 • Use new defines for FindFolder folders in StdFile 
2019-10-09 22:57:33 +0300 • Call DirCreate in FindFolder when createFolder set
2019-10-09 22:56:44 +0300 • Add dummy DirCreate placeholder to FSDispatch     
2019-10-09 22:55:41 +0300 • Merge branch 'master' of  
2019-10-09 22:55:37 +0300 • Fix font strike size to inRec size scale ratio    
2019-10-09 22:20:59 +0300 • disassembler support for move16                   
2019-10-09 21:54:33 +0300 • remove unused sr_bits field from instruction data 
2019-10-09 21:33:53 +0300 • finish implementing move16 instruction            
2019-10-09 21:26:06 +0300 • update xcode 6 project                            
2019-10-09 17:23:48 +0300 • Fix FindFolder memory corrupt (ioNamePtr not set) 
2019-10-09 11:16:53 +0300 • Fix byteswap bug in fld# type comparison          
2019-10-09 11:15:00 +0300 • Fix fld# search to work on non-system folder lists
2019-10-09 03:46:40 +0300 • Add linecount script                              
2019-10-09 03:46:28 +0300 • Add empty desktop/trash folders to THINK Pascal   
2019-10-09 03:32:46 +0300 • AliasManager added, to implement FindFolder for SF
2019-10-09 02:42:02 +0300 • Implemented HOpenResFile                          
2019-10-08 00:43:44 +0300 • Implement sfHookCharOffset and sHookRebuildList   
2019-10-07 21:56:21 +0300 • Found hidden ListManager selector, used by StdFile
2019-10-07 21:55:09 +0300 • Add PageUp/Down and Home/End keys to SDL keymapper
2019-10-07 04:57:10 +0300 • Use inThumb also to draw control on SetCtlMin/Max 
2019-10-07 04:55:48 +0300 • Fix wrong zero-case part code bug in HiliteControl
2019-10-07 03:16:46 +0300 • Fix ignore dot & '%'-prefix items in InsertResMenu
2019-10-07 02:19:28 +0300 • Fix memory leak in DrawPicture                    
2019-10-07 02:18:10 +0300 • Fix conversion of uncompressed pixmap data to b&w 
2019-10-06 23:37:38 +0300 • fix divs.l, start implementing move16 instruction 
2019-10-06 00:00:12 +0300 • allocate move16 instruction                       
2019-10-05 23:07:36 +0300 • fixes for divs.l/divu.l instruction               
2019-10-05 22:00:21 +0300 • Merge branch 'master' of  
2019-10-05 21:59:44 +0300 • implement chk2.b/w/l instructions                 
2019-10-05 21:57:57 +0300 • Merge branch 'master' of  
2019-10-05 21:57:22 +0300 • Fix resource name remove bug                      
2019-10-05 21:27:28 +0300 • implement cas2.w and cas2.l instructions          
2019-10-05 20:34:46 +0300 • finish cas.b/w/l instruction implementation       
2019-10-05 04:50:14 +0300 • Fix bug in FindWindow (theWindow not initialized) 
2019-10-05 04:10:11 +0300 • Merge branch 'master' of  
2019-10-05 00:11:35 +0300 • make bsr instruction branchless                   
2019-10-04 23:43:40 +0300 • THINK Pascal def missing from root CMakeLists.txt 
2019-10-04 23:25:35 +0300 • register variants for bfins, bfset and bftst      
2019-10-04 23:05:14 +0300 • remove unused c16 param from bfxxx_read/write     
2019-10-04 22:42:22 +0300 • use read_pc_immediate for bit field extension     
2019-10-04 22:30:25 +0300 • fixes for bit field instructions                  
2019-10-04 01:06:20 +0300 • Add THINK Pascal 4.0 test app JSON config to CMake
2019-10-04 01:06:00 +0300 • Implemented MaxSizeRsrc                           
2019-10-03 22:25:37 +0300 • Reinforce fake handle handling in memory manager  
2019-10-03 22:21:15 +0300 • bfchg, bfclr, bfext, bfextu and bfffo instructio..
2019-10-03 22:09:06 +0300 • Revert "bfchg, bfclr, bfext, bfextu and bfffo in..
2019-10-03 22:08:15 +0300 • bfchg, bfclr, bfext, bfextu and bfffo instructio..
2019-10-03 04:04:45 +0300 • Escape MacRoman filenames & avoid UTF8 conversions
2019-10-03 00:27:19 +0300 • SF key filtering (max length, skip ':' & CR, etc.)
2019-10-03 00:26:24 +0300 • Support "autoKey" in keyboard and platform modules
2019-10-02 02:55:34 +0300 • Handle tab key in SFDialogFilter                  
2019-10-02 02:14:00 +0300 • Tweak list ListManagerClickTrackProc visible size 
2019-10-02 02:00:26 +0300 • Fix missing sfHookLastCall set on SF dialog close 
2019-10-02 01:58:50 +0300 • Escape characters in NFS (and fix full-path bug)  
2019-10-02 00:08:29 +0300 • Adjust Art Class JSON to use 68020 machine config 
2019-10-02 00:07:57 +0300 • Update SF reply records during event loop         
2019-10-02 00:07:24 +0300 • Handle invalid names and replace in "save" dialogs
2019-10-02 00:05:56 +0300 • Reduce keyboard debug logging                     
2019-10-01 22:34:26 +0300 • Fix missing origName in SFPutFile                 
2019-10-01 22:06:24 +0300 • Merge branch 'master' of  
2019-10-01 22:06:17 +0300 • Tweak Gestalt and fix M68kHelper for 68020 support
2019-10-01 21:35:17 +0300 • kemu header cleanup                               
2019-10-01 21:33:14 +0300 • update xcode6 project                             
2019-10-01 20:38:00 +0300 • 020 bit field instructions, optimizations, some ..
2019-10-01 17:01:23 +0300 • First successful "open" from Standard File        
2019-10-01 15:37:53 +0300 • Missing header update for no-read privilege flag  
2019-10-01 15:37:03 +0300 • Add missing part of previous LayerDispatch fix    
2019-10-01 15:36:20 +0300 • Handle cancel button & implement closing dialogs  
2019-10-01 15:20:57 +0300 • Handle opening of folder in file list             
2019-10-01 15:20:00 +0300 • Don't hilite disabled items in file list lDrawMsg 
2019-10-01 14:58:06 +0300 • Error dialog support for Standard File            
2019-10-01 14:57:19 +0300 • Add some more TODOs to StdFilter proc             
2019-10-01 14:56:52 +0300 • Fix bug in AutoPositionWindow lcParentWindow case 
2019-10-01 13:42:47 +0300 • Fix redraw bug in file list item selection        
2019-10-01 13:40:58 +0300 • Detect when a folder is opened instead of file    
2019-10-01 13:39:08 +0300 • Fix accidental file list framing in "Get" dialogs 
2019-10-01 03:24:36 +0300 • Update save/open button state (and title)         
2019-10-01 01:21:11 +0300 • Add Desktop Folder and Trash to TeachText config  
2019-10-01 01:20:45 +0300 • Add empty folder creation support to make.cmake   
2019-10-01 01:06:51 +0300 • Go to parent folder by clicking volume name       
2019-09-30 02:06:23 +0300 • Handle more events in SF(update, activate & mouse)
2019-09-30 02:02:42 +0300 • Fix byteswap bug in FindDialogItem                
2019-09-29 03:39:31 +0300 • SF activation handling: set reply & frame filelist
2019-09-29 03:35:48 +0300 • Fix more maxIndex bugs in LGetSelect and LSearch  
2019-09-28 03:54:21 +0300 • Add file type filtering & call custom file filters
2019-09-28 03:53:38 +0300 • Fix bug in Standard File dialog autopositioning   
2019-09-28 03:28:31 +0300 • Fix SF special folder detection bytes-wap bug     
2019-09-28 03:27:37 +0300 • Fix ioDrDirID for folders in GetCatInfo           
2019-09-28 03:08:52 +0300 • Handle list clicking in SF dialog event handler   
2019-09-28 03:08:12 +0300 • Fix maxIndex case in LClick selection clearing    
2019-09-28 03:07:09 +0300 • Set mouseLoc in ListRec in LClick                 
2019-09-28 03:05:32 +0300 • Fix ioDirFlg setup in GetCatInfo                  
2019-09-28 01:59:31 +0300 • Re-enable EraseRect calls in SF dialog item redraw
2019-09-28 01:57:24 +0300 • Fix ioNamePtr handling in GetCatInfo              
2019-09-28 01:56:01 +0300 • Draw volume icon & name in Standard File dialogs  
2019-09-27 15:40:16 +0300 • Finalize LDEF -4000 drawing for standard file list
2019-09-27 15:38:52 +0300 • Fix file type mapping bugs in standard file pack  
2019-09-27 15:37:44 +0300 • Add Scratch20 low memory global                   
2019-09-27 04:21:58 +0300 • First real filelist shown in Standard File Dialogs
2019-09-26 22:56:17 +0300 • Add balancing algorithm to the AVL tree (+debug)  
2019-09-26 22:54:32 +0300 • Add missing header from previous commit           
2019-09-26 22:53:19 +0300 • Finish volume/directory setup in SF initialization
2019-09-26 11:30:42 +0300 • Reset to VCBQHdr after last VCB in SF volume scan 
2019-09-26 04:06:05 +0300 • Work on volume state initialization in SF package 
2019-09-26 04:03:16 +0300 • Tweak FMGetDrive to allow passing nil driverRefNum
2019-09-26 04:02:01 +0300 • Support GetVolInfo calls with drvNum as vRefNum   
2019-09-26 04:01:13 +0300 • Add four flag bytes in front of DrvQEl in NativeFS
2019-09-25 04:33:14 +0300 • Set default SF volume&folder to application folder
2019-09-25 04:11:00 +0300 • Add indexing to GetCatInfo + fetch real ioDrNmFls 
2019-09-25 04:09:38 +0300 • Add rough iteration support to file system AVLTree
2019-09-22 13:09:58 +0300 • Refresh file list in StdFile dialogs              
2019-09-22 05:17:32 +0300 • First StdFile dialogs visible, not yet functional 
2019-09-22 05:15:58 +0300 • Support opcodes 0x12, 0x13 and 0x14 in pictures   
2019-09-22 04:41:36 +0300 • More progress on StdFilePack                      
2019-09-22 04:39:36 +0300 • Minor List Manager fixes and tweaks               
2019-09-22 04:37:15 +0300 • Placeholder for popup CDEF (63)                   
2019-09-19 23:06:31 +0300 • Finalize CheckWindow selector for LayerDispatch   
2019-09-19 03:25:17 +0300 • More work on Standard File Package                
2019-09-19 03:23:39 +0300 • Add two new selectors to LayerDispatch for StdFile
2019-09-18 03:58:15 +0300 • Some work on Standard File Package                
2019-09-18 03:54:32 +0300 • Use _RelString in IUMagIDString for now           
2019-09-13 01:48:34 +0300 • Mac OS X 10.6.8 compatibility                     
2019-09-11 21:30:30 +0300 • Enable GetNextEvent CPU throttle for Arkanoid     
2019-09-11 18:25:41 +0300 • Add Crystal Quest and Armor Alley test apps       
2019-09-09 01:31:04 +0300 • Bump up runtime version for new bundles           
2019-09-09 00:58:48 +0300 • Tweak IAGO cmake config                           
2019-09-07 14:04:32 +0300 • Add two more test app configs, IAGO and EveryMan 1
2019-09-07 14:04:02 +0300 • Add substitution for missing fonts in Font Manager