CEEMAC

CEEMAC is a programming language developed in the 1980s for the Apple II family of computers. It was developed by Brooke Boering and published by Vagabondo Enterprises,^[1]

CEEMAC is a visual composition language in which the programmer designs dynamic "scores" by programmatically controlling color, shape, sound and movement. A programmer can then "perform" their score through use of the Apple II keyboard or paddle input devices to introduce additional variation.^[2]

Syntax loosely resembles a combination of BASIC and Pascal and includes control commands such as GOTO, GOSUB, DO, AGAIN, FOR, SKIP, EXIT and loop control structures such as IF/WHILE and TIL/UNLESS. Additionally, 30 predefined macros aid in score composition.^[2]

CEEMAC was originally marketed through distribution of a free demonstration program entitled Fire Organ. This program contained several scores created by Boering and other programmers to demonstrate some of the capabilities of the language.^[1]

The following is a small CEEMAC sample score:^[3]

 SCORE: KT :FIRE ORGAN KEY T SPEED [0,0] : - BUT 0 0 CLEAR [0,0] XY1 = $80;$80 : MAIN LOOP F :FORGND SYMMETRY 0-3 VC = RND3 ORA 3 : SAVE FORGND ROTATION VD = ROTEZ :FORGND COLOR COLOR = NXTCOL

• A structured graphics language: Ceemac
• CEEMAC and Fire Organ Information, screen shots, liner notes
• Ceemac: A Language for Teachers, Artists, and Animators
• Fire Organ demonstration in an online Apple II emulator
• Video of Fire Organ CEEMAC demonstration program