I found Easy68k as an assembler and a simulator. But it is painful to type the assembly from ROM file and replicate the data in the code.

What version of MacBugs I should use for System 6?

I tried. But I can't find gtk2-devel from homebrew. I incorporated Mac OS X in the Travis CI. But I haven't added GUI UI in the CI due to the missing dependency. I only added SDL2 from homebrew. If your Mac OS X uses homebrew, please let me know how you add X11 and gtk libraries from homebrew. See b...

That would be a hidden feature in mini VMac that I don't know.

I hit ctrl-h + m. I got 2x zoom on the guest OS. Can you explain what you do in mini VMAC?

512x342 is the guest OS resolution. Scaling up means for how the guest screen presents in the host OS. Mini vmac is also 512x342 in guest os. But it can scale up 2x in the host. My patch can scale up at any fractional factor by SDL2. I am working on patching Macintosh SE 24 Bit ROM, where the memory...

I'm enhancing Basilisk II to run System 6. One task I struggled with is to read Macintosh SE 24 bit ROM to figure out how to override the compressed dispatch table directly before it get expanded by the ROM. I found the logic that expands the compressed dispatch table. But my progress is SLOW. I won...

24 bit ROM in System 6 only supports small tiny windows 512x342.

I patched SDL2 to support System 6. Now you can scale up the guest OS by SDL2 acceleration. A PR was sent to upstream.

Please check out my screen case here: https://youtu.be/br5Hjt9F6X4

Thanks to SDL2 features from David. I enhanced the scale up features in window mode. The user can change the scale factor at will by resizing the window. When user restore the window from minimize or maximize, it restores the scale ratio to 1. I can tell the SDL2 employs the hardware acceleration in...

https://i.ibb.co/58LG59v/bii-performance.png I benchmark two addressing: direct and memory banks. As I expected, the memory banks is a little bit slower than direct. But in general, there are no noticeable issues at all to run any Apps in BII under direct or memory banks. But what makes the huge pe...

Okay, it seems like the random hang on startup is caused by the SDL2 code. See https://github.com/cebix/macemu/issues/203 I proposed several solutions in the issue. I will go for the solution that use memory banks addressing. But I dont know the performance hit, compared to direct addressing. I dow...

Ronald P. Regensburg wrote:I described a way to create a disk image from a HFS CD-ROM in Catalina in a separate new topic: https://www.emaculation.com/forum/viewt ... =1&t=10709

Great Jobs, Ron! I forgot there is dd command in macOS.

If you compile with addressing mode in memory banks in configure, it should workaround the hangs.
I'm working on the permanent fix now.

I think you are good. I used to RIP CD/DVD by Toast Titanium. However, after the recent 32 bit binary ban in Mac OS X, I can not use Toast Titanium any more. If you have Linux, you could try dd command to rip the CD into ISO. A command below should work: dd if=/dev/[your cdrom device in Linux] of=my...

First of all, please make sure the binary in the CD-ROM is for Power PC architecture or M68K architecture. They are two different architectures. Apple Macintosh transit from M68K to Power PC in 90s. Some binary may be a fat binary which supports both. Some don't. If it is for M68K, please proceeds t...

You could rip the CD-ROM to ISO. Add ISO files as disks.

BII can't emulate Power PC. It emulate 68030 Motorola processor a.k.a M68K.

I figured it out how to use SDL1 as back end for System6. SDL2 shows a white screen. But SDL 1 is fine in Linux. Need some further debug: https://i.ibb.co/X8fLbPB/bii-sdl1-system6.png The build configure is the following: CFLAGS=-O0;CPPFLAGS=-O0 ./configure --enable-sdl-video --enable-sdl-audio --wi...

Several years ago, I was working on a challenge to emulate 24bit ROM for System 6 in BII. I remembered I did get it done even in SDL with an emulated disk. But I lost all my notes how to replicate it. So this time I updated the wiki for record: https://github.com/cebix/macemu/wiki/Basilisk-II-Compil...

I used macport to get its dependencies to build BII in Mac OS X. But Travis CI support homebrew rather than macport. I'm not familiar with homebrew. If anyone knows the BII dependencies in hombrew, please let me know. I'd like to add Mac OS X to Travis CI, as well. This will help any broken build as...

i sent a PR with back port SDL2 features to upstream repo.

If you uses Linux or Mac, please give a try.

I tested it work for 256 color game like lemmings.

See https://github.com/cebix/macemu/pull/202

Check out the Travis CI yaml file I wrote in upstream. You can get help from build instructions.

I found that using SDL is easier to fix the sound problem. Have you tried build with SDL?

I don't see 64bit is the major issue for SDL 1.2. My fedora box does have 64 bit SDL 1.2 dynamic library: rpm -ql SDL-1.2.15-30.fc28.x86_64 /usr/lib/.build-id /usr/lib/.build-id/e5 /usr/lib/.build-id/e5/3ef3039c3c7e2f6003a11c50f497077c0f386c /usr/lib64/libSDL-1.2.so.0 /usr/lib64/libSDL-1.2.so.0.11.4...

That's a good idea to make memory addressing configurable at runtime. But it will require some boring structural change. I will pass... I haven't got involved in SDL2. I remembered someone has started something. But I have never seen a PR. TBH, I want that feature too for screen integer/fractional z...

Here is my proof: http://i67.tinypic.com/auhzrk.png To use System 6, you need to specifically build for membank address mode. I shared my build script here: make clean NO_CONFIGURE=1 ./autogen.sh CFLAGS=-O0;CPPFLAGS=-O0 ./configure --enable-sdl-video --enable-sdl-audio --disable-vosf --disable-jit-c...

You can run 24 bit ROM in System 6 under BII. That's my PR announcement about. I tested it and confirmed that MacSE ROM can run System 6. md5sum MacSE.ROM 9fb38bdcc0d53d9d380897ee53dc1322 MacSE.ROM The ROM hack here(https://github.com/cebix/macemu/commit/ca11c2588239721d9dee7a7d1186a9aa3542feac) emu...

I wrote a doc on 68K A-trap https://github.com/cebix/macemu/wiki/ROM-Analysis-in-Basilisk-II-Emulation#mac-rom-in-real-macintosh-hardware . In a nutshell, it just invent 68K instruction in software manner. But I'm not sure what your system extension tries to do. For break point, I sent a PR (https:/...