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/2 assumes unaligned happens 50% of the time. Try a different split. Probably < 50% is more likely? But I guess it depends on the guest architecture? for ((unaligned=0;unaligned<=100;unaligned+=10)); do printf "%3d%%: " "$unaligned" printf "%sc\n" "$(bc <<<...

I think the speed increase would come from the fact that optimized 68K code would read from aligned addresses? The emulator has to check for this alignment and use the slow path for unaligned accesses. Compare the instruction cycle counts in the CPU manual between aligned and unaligned accesses...

Use the Control Strip instead of the Monitors control panel to see the 1280x960 and 1280x1024 options. The Monitors control panel doesn't show those options because they are not marked as safe? The SwitchRes software may be able to fix that.

What modes do you see besides 1152x870?

What version of Mac OS?

Try the 17" mode. If that doesn't work, try the VGA mode.

Is the emulated LC475's ROM choosing the Product Info from the Universal Tables that a real LC475 would?

For PDM and TNT machines (I didn't check the others), I think only 16 AMD Am28F020 chips is supported by the classic Mac OS flasher app. The flasher app has code for 16 Intel 28F020 chips but I don't think it can work because the code checks for the wrong device ID on the side that is reversed...

I think the flash programmer software expects the ROM to have 16 chips. See the disassemblies in the TinkerDifferent thread.

You mean the front legs fit in the groove of the insert? Doesn't that mean the star shape of the insert does not go into the round hole at the bottom of the monitor? What does the other side of the insert look like? Can it be flipped upside down?

Can the insert be removed? What does the base look like without it?

The wiki page has a link to the Discord server where you can get help for using or developing DingusPPC.

My fork lets you enter more than one --hdd_img parameter so you can use : for drive letters in Windows. My fork also has the ability to specify device paths with SCSI or ATA ID numbers so you can place the HD exactly where you want. My fork adds --hdd_part which lets you catenate partitions from...

I think there should be a "waiting on" message near the beginning that indicates the expected I/O Registry path that it is waiting for. It should be the same disk you are booting from. What disk are you booting from? The message comes from xnu/iokit/bsddev/IOKitBSDInit.cpp using "IOLog". There...

What does it think is the root device? If you're booting from an ISO that is burned to a DVD, then the root device should be a partition on the DVD drive. A root device may work from EFI and be able to load the boot loader (as you are experiencing). The boot loader then loads the kernel and OS...

The first problem is a vertical white line, then 6 or 7 or 8 vertical black lines, every 16 pixels. If the problem was a broken trace, then the lines would all be the same color (usually black) and appear across the full width of the display. The lines appear at the left edge of the display. Is...

True. DingusPPC has hardware cursor emulation for ATI graphics cards, and built-in graphics controllers (control and platinum) used by Power Macs. sixty6 doesn't use a hardware cursor. Other graphics controllers aren't implemented yet.

The ERS and cuda firmware source code were posted at https://68kmla.org/bb/threads/getting-rid-of-the-your-clock-is-not-set-to-the-correct-time-alert-dialog-after-system-7-boots.45952/post-511487

This video by Action Retro shows removing and replacing the speaker fabric: I suppose it is too difficult to remove and reuse the old fabric?

I think I have a binary that can do Gazelle machines (PSX based) but I don't know if it works or is complete. At least, the code may possibly show how to enable flashing of a ROM SIMM that is installed and working in a Gazelle machine. Flashers (stored as XCOF resources in the Flasher...