170 HOME : PRINT "PROGRAMS IN EXTRA.AMPER EXCEED 6K": PRINT "FILES IN /RAM MAY BE OVERWRITTEN": PRINT : PRINT "ESCAPE TO QUIT, RETURN TO CONTINUE";: GET Z$: PRINT : ON Z$ < > CHR$(27) GOTO 270: END
180 HOME : POKE 49153,0: POKE 49237,0: POKE 1024,123:A = PEEK(1024): POKE 49236,0: POKE 49152,0: IF A < >123 THEN PRINT "128K REQUIRED": END
190 RETURN
200 REM DOS 3.3 MEMORY CHECK
210 IF PEEK(64435) < >6 THEN HOME : PRINT "APPLE IIE, IIC OR IIGS REQUIRED": END
220 IF PEEK(64448) = 0 OR ( PEEK(64448) = 224 AND PEEK(65055) < >96) GOTO 250: REM IIC OR IIGS
230 GOSUB 370: CALL 724: GOSUB 180
240 IF PEEK(975) < >128 THEN HOME : PRINT "128K REQUIRED": END
250 EF = 3: ONERR GOTO 300
260 PRINT D$"BLOAD EXTRA.AMPER"
270 CALL 8192: REM RUN EXTRA.AMPER
280 HOME : PRINT CHR$(18): PRINT "EXTRA.AMPER INSTALLED"