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My program is correct. Change line 50 to write the line number as a character between A and X (1 to 24) 50 FOR X = 0 to 39 : POKE 1024+OFFSET+X,Y+1 : NEXT What is the size of the binary created by buckshot? If it's 24 * 40 = 960 then it's not including screen holes. It might be saving the file...

The COMPUTE! magazine issue I referenced is at internet archive and contains machine language for calculating HGR line address.

If you load the GR image to $2000, then this should be able to copy it to $400 (if my math is correct): 10 FOR Y = 0 TO 23 20 AB = INT(Y / 8) 30 CDE = Y - AB * 8 40 OFFSET = CDE * 128 + AB * 40 50 FOR X = 0 to 39 : POKE 1024+OFFSET+X,PEEK(8192+OFFSET+X) : NEXT 60 NEXT But it's really slow...

There's some info at https://en.wikipedia.org/wiki/Apple_II_graphics Basically, the graphics pages have screen holes between some rows. The screen holes for HGR aren't used for anything so you can overwrite them without issue with a BLOAD. The screen holes for GR are used by various things...

I tried Mac OS 8.6 in DingusPPC but got an error "DrawSprocketLib--DspGetVersion" not found. I don't have a working Mac OS 9.1 yet for DingusPPC. I can try it in SheepShaver or on a B&W G3.

There's a build of my flashrom fork at https://forums.macrumors.com/threads/question-how-powerful-of-a-graphics-card-will-work-in-a-beige-power-macintosh-g3.2303689/page-32 but I haven't tried it with the -p satasii option. Of course, no PCI method is going to work for a flash chip that needs a...

I think @dosdude1's flashrom for Linux on PPC Mac should work for Debian. My flashrom fork should work in Mac OS X (PPC and Intel) but I need to make some updates to make my source code buildable on PPC Mac OS X 10.4.11 again. I'll work on it today. I don't think anyone's used it yet to flash a...

Check the permissions? ls -l vmacMountable Does the mounted volume have the FUSE volume icon? Does "Get Info" of the mounted volume show "Format: Unknown (macfuse_hfs)"? I'm using macOS 12.7.2 Monterey. My HFS disk images have file extension .dmg and exist on a partition that has "ignore...

I ported FlashROM to PPC Mac OS X. See the previous page (page 5) of this thread.

Looking at MDD Open Firmware dump, it appears that diagnostic boot doesn't do anything except try to do this command: boot enet:,diags where enet is the default diag-device and ,diags is the default diag-file I don't say any code for handling ,diags Another default for diag-file is bootp There...

Apple Events?

I updated my post above with the correct 9 dip switch info from https://68kmla.org/bb/index.php?threads/mac-to-vga-monitor-adapter-struggles.45423/post-502564

Not all disk images have the overhead of a header. Check the first block of a disk image to see if it is a header or if it is part of the disk data. The disk image needs to be not sparse and not compressed. In Mac OS X, you would use dd in Terminal.app to read and write blocks and xxd to...

But for best results, you want to keep the signal digital. Don't all/most G4 towers have DVI output? That's equivalent to HDMI up to 165 MHz (HDMI 1.1 ≈ 1920x1200@60Hz). You just need a passive DVI to HDMI adapter for that. Beyond that you're dealing with Dual Link DVI (up to 330 MHz) which will...

All the C compilers for classic Mac OS support pascal because Mac OS apps was original programmed using Pascal. Look at all the Inside Macintosh books - they show APIs and code examples written in Pascal. pascal in C alters the parameter passing calling conventions to match those of Pascal - at...

To determine color vs grayscale, For indexed color modes (8 bit or less), can you examine the color table (pmTable) to see if it has any entries that don't have red = green = blue? Regarding drawing icons, maybe try going to...

Oh right, DeviceLoop. I remember that now. Controls and window structures will appear different on color and B&W displays. CDEFs and WDEFs probably use DeviceLoop. You would use DeviceLoop for your own drawing if you want what you draw to be different depending on color depth.

There could be multiple displays connected with different color depths. A window could span multiple displays. GetMainDevice is not necessarily the device with the highest color depth. I forget how drawing and updating should be handled when a window spans multiple displays. Do you get a...

I use StuffIt Destinations.app in macOS Monterey to extract those files successfully. I think it's part of Stuffit Expander 16?

MacsBug only uses 640x480 so it appears in a small window in the middle of the 1600x1200 display. I'm using MacsBug 6.6.3. It seems to work fine on my B&W G3 running 9.2.2 except for some corrupted pixels. I can't see the background while in MacsBug because the pixel depth is not set to 256...