ZX81 Programs

ZX81 Program Listing

SCROLLEX**SLR/1998 (scrollex.p)

SYSTEM VARIABLES

PROG  : 16509
D-FILE: 16609
VARS  : 17402
E-LINE: 17427
STKBOT: 17439
STKEND: 17439

LEGEND

9999 means line number
PRINT means treat as KEYWORD P

PROGRAM LISTING

  10 FOR X=0 TO 30 STEP .3
  20 LET L=15+14*SIN X
  30 PRINT TAB L;"ZX"
  40 IF X>6.3 THEN SCROLL
  50 NEXT X