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I can *try* to convert it to C but you assume I'm solid in 68k assembly to begin with - I am not. There are so many questions that pop into my head as I'm typing this up and trying to compile it as I go, so that I don't let typos creep in. branching seems to work if I use labels in THINK C using...

yeah, I started poring over the entire code and I guess that's only a small section of a bigger initializing routine. I'll see if I can replace everything I had for serial comm with this, hopefully my asm block adaptation chops are not too rusty

I naively brought this code from this post https://68kmla.org/bb/index.php?threads/external-localtalk-serial-port-clocks.35645/post-453444 formatted for THINK C: void SCCASMInit(void) { asm { MOVE.B #4,(A0) ; pointer for SCC reg 4 MOVE.L (SP),(SP) ; Delay...

Just a wrapped asm { } block Good to know , I'll give it a try, thanks!

I saw your thread but did not understand how to leverage it. What doesn't connect in my mind is the fact that without bringing in my own breadboard circuit with a 1 MHz oscillator and frequency dividers, I'm able to use Cubase just fine and play arbitrary .MID files all day long, + play a...

// Insert your include list here #include <stdio.h> #include "Serial.h" // Insert your #define list here // --- MIDI spec hard coded values --- // good reference is here: https://www.music.mcgill.ca/~ich/classes/mumt306/StandardMIDIfileformat.html#BM1_1 // from the midi.org itself...

Let's get what I'm using as gear out of the way: Dev Machine: modern PC with Basilisk II set with System 7.5.5, Symantec C++ 6.0 Target Machine: SE/30 with System 7.5.3, no Apple MIDI Manager (prefer not to use it since I want to target 6.0.8 and a Mac Plus as well) PocketMac MIDI interface...

I took mine from Macintosh Garden here: https://macintoshgarden.org/games/mac-a-mug-pro I was able to successfuly take that file, unstuff it under System 7 (using Basilisk II) since I found dealing with unstuffing under System 6 is just asking for pain usually, then gone back to mini-vMac and...

What system and finder versions are you using? I recommend not going over System 6.

3rd annual Cursed Boot Disk 03 released! I pushed the enveloppe by loading quite a few gfx art assets into a Handle to a bunch of Sprites that I coded some 16 years ago. The code still held up, but the Draw routines had to be slightly modified to take into account the special quickdraw...

Mac SE/30: Geometry: Setup Mode: normal H Offset: 176 V Offset: 28 Min H Width: 512 Min V Height: 342 Max H Width: 512 Max V Height: 342 H Pixel Aspect: 2 V Pixel Aspect: 2 FB Size: Normal FB Bits/Pixel: 8 Clock Frequency: 15667200 Line Length: 704 Clock Tolerance: 5000 Lines per Frame: 370 Sync...

Ok I'm an idiot. wire colors are hard to get right past midnight. I inverted hsync and vsync on the J12 because I thought I could match colors between the SE/30 and my stuff. Still have to tweak some stuff but I'll post my results when I'm done!

I've been successfully using a RGBtoHDMI for close to 2 years now on my Mac Classic first, then Mac Plus, noting some differences in the settings, mostly around H, V offset and the H & V polarity. I want to recreate this success with my SE/30 now. I have 2 self-bought, self-assembled RGBtoHDMI...

I lived through the hard disk-less era of the Mac Plus and while System 6 wasn't available back then, I would still not have used it anyway. We had an external disk drive and we squeezed every bit of space we could on our 2 possible 800kb disks that we could use at any one time. System 4.2 was a...

That's super cool. As a frequent user of MSDOS games from the 1990-1997 era, I live through the pain of deciding whether to launch a game in: 1) MS-DOS with only .iso support, forgetting about redbook cd audio support, using SHSUCD to mount them 2) Win98se with .bin/.cue support using Daemon...

I'm surprised no one made a thread about this huge bit of mac gaming news. John Calhoun (of Soft Dorothy fame, Glider, the original Glypha I, II and III, etc.) released on May 15 a modern-day version of Glypha called Glypha: Vintage. Runs on Windows, Mac and Linux. Rather than just creating...

ha! It's already winnable with the keyboard - I did it back then around 1988-1989 during xmas eve while family was over! and can more or less redo it at will now. But only on beginner difficulty. I haven't grinded the XP needed for the higher levels yet, but those are my next attempts.

The USBV4C project, which launched last year, is a neat raspberry pi hat that allows modular protocol cards that talk to your vintage computer and sends it modern input controller signals processed right for your old machines. Most modern USB input devices (mice, keyboard) and a few popular...

Today, I released a 2nd cursed boot disk. watch what happens - if you want to try what I coded as the INIT that I used, go here: https://macintoshgarden.org/apps/init-fakes-a-ms-dos-33-startup

This is a magical thread. The popping sound solve is pure joy. Do you mind if your solution is heavily inspired from and adapted?