ZX81 Programs


Read about, play, run, or list games, animations, and more. These are my programs from the ’80s to today.

ZX81 Program Listing

*ZX SCROLL**SLR/2022* (zxscroll.p)


SYSTEM VARIABLES

PROG  : 16509
D-FILE: 16686
VARS  : 17479
E-LINE: 17480
STKBOT: 17485
STKEND: 17485


LEGEND

9999 means line number
PRINT means treat as KEYWORD P


PROGRAM LISTING

   1 REM /-*ZX SCROLL**SLR/2022*
52523 Eúö+VAL 5M LN STEP RND
RND7LOOP DATA ñ5 ùñPòGOSUB KAT 5
ùINKEY$- WHEN ;FRESTORE E£RND;)+
ò;YZ?7YX?(INT ?4RND/SAVE   6
THEN RNDLN VòGC(HERR MSGS EDIT
LN X÷INKEY$?>=£E THEN RNDF?P4
TO TAN LN VòG4IF TAN ?<*,011./+
)$ùõóññòô÷"
   2 RAND USR VAL "16514"