Grafix draws six screens of line patterns built from the SIN and COS functions, one after another; the program waits for a key to begin. The magazine describes it as having “no real use” but being entertaining, and as an example of the graphics that SIN and COS can produce.
Grafix was written by Kristian Boisvert and published on the December 1986 – January 1987 tape of Byte Power (©1987). A later Grafix II appeared in the Fall 1987 issue.
Program Analysis
The 5,342-byte BASIC program is a REM at line 0 holding the drawing code, a REM with the title and credit, the Byte Power copy check (IF PEEK 23681=0 THEN CLS : LIST 9999: STOP) and RANDOMIZE USR 26715, which calls code inside the line 0 REM. The magazine notes that Byte Power converted submitted BASIC to machine code where it could, and this program has no BASIC drawing statements of its own, so the six screens could not be checked against the listing.
Image Gallery
Note: Type-in program listings on this website use ZMAKEBAS notation for graphics characters.