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unsigned char


unsigned char


Animbrushes and fill modes in Brilliance 2.0.  Converted to animated GIF in Cloanto Personal Paint 7.1.

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Squeak Amiga VM progress

Squeak Amiga VM progress

I've made some time to work on the Amiga Squeak VM I started many years ago.

The screenshot above shows it running on its own 8bpp screen on an Amiga 1200.  This Amiga 1200 has a 40MHz 68030 processor, and you can see the benchmarks.

In comparison, my Core i5 MacBook Air running 64-bit Squeak 5.1 with a recent Cog VM gets these benchmarks:

 '2,000,000,000 bytecodes/sec; 190,000,000 sends/sec'

Features recently enhanced in the Amiga port: 

  • Screen palette uses Squeak's intended colors
  • Visiting the root of the file system in the File Browser shows all attached Amiga volumes
  • More functional UNIX path to Amiga path conversion allows more flexibility of where image/changes/sources files may be stored
  • Cmd-key shortcuts work
  • Abandoned "window on pubscreen" approach in favor of "clone Workbench screen" approach
  • Initial backdrop window now is sized according to screen size
  • Right mouse button and middle mouse button both work

Most development has been done in this round on MorphOS 3.10 using SAS/C 6.58 and CygnusEd 4.22.


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Opcode and a Macintosh SE

2 min read

Today while fighting off a cold I thought it would be great to see if I could get Opcode's Galaxy running on my Macintosh SE to use its Editor/Librarian with my Roland XP-50.

First, I tried running the OMS 2.3.8 installer while booted to System 6.0.8.

OMS and System 6.0.8

Nope.  I'll have to boot to my System 7.1 disk and try it there.

OMS and 68000

Oops.  Of course, the Macintosh SE has a 68000 processor, and OMS 2.3.8 requires a 68020.  Oh well.  But... what's this... a copy of Opcode's legendary Vision MIDI sequencer, version 1.0.2?  Maybe it will work... let's reboot to System 6.0.8 again.

Vision 1.0.2 and System 6.0.8


Vision blank song

...and it launches.  Blank song.  This show's off Vision's keyboard (i.e. computer keyboard) sequence-triggering capability, which was also present in Dr. T's KCS (Keyboard-Controlled Sequencer) but wasn't present as a first-class feature in a mainstream sequencer again until Ableton's Live.  (I don't count Logic's Touch Tracks or Bars'n'Pipes Pro here, nor Max, as using keyboard-triggered sequences requires construction in each.)

Let's open a demo song...

Vision tutorial demo song

We've got a sequence editor, note editor, drum editor... oh, the vision we have into our musical data... let's check the about window for more info regarding this amazing program.

Vision about window

Lovely.  1989.  That's, uhh, almost 30 years ago.

I probably won't use Vision 1.02 with my Roland XP-50, since the XP-50 has a pretty cool built-in sequencer with RPS and phrase tracks.  But it's fun to think about...