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QB64-PE/tests/qbasic_testcases/misc/mandelb.bas
Matthew Kilgore 9ee89d6ff4 Add QBasic tests
These tests use a variety of sample code (with some of the larger files
removed, so they are not complete!) and verifies that they all compile
successfully.
2022-04-28 23:00:07 -04:00

16 lines
574 B
QBasic

'MANDELBROT by Antoni Gual 2003
'for Rel's 9 LINER contest at QBASICNEWS.COM 1/2003
'------------------------------------------------------------------------
'DECLARE SUB ffix
'ffix
1 IF x& = 0 THEN SCREEN 13 ELSE iter% = 0
2 x& = (x& + 123) MOD 64000
3 im2 = im * im
4 IF iter% THEN im = 2 * re * im + (CSNG(x& \ 320) / 100 - 1) ELSE im = 0
5 IF iter% THEN re = re * re - im2 + (CSNG(x& MOD 320) / 120 - 1.9) ELSE re = 0
6 iter% = iter% + 1
7 IF ABS(re) + ABS(im) > 2 OR iter% > 254 THEN PSET (x& MOD 320, x& \ 320), iter% ELSE GOTO 3
8 IF LEN(INKEY$) = 0 THEN GOTO 1