10 IF A=0 THEN A=1:LOAD"GEOS BOOT",8,1
20 OPEN 5,8,15,"I0:"
30 PRINT#5,"R:GEOS BOOT ALT=GEOS BOOT"
40 INPUT#5,A,B$,C,D
50 PRINTA,B$,C,D
60 CLOSE 5
100 IF PEEK(25759)<> 76THEN END:REM JMP
120 POKE 25759,96 :REM RTS
122 POKE 25748,44 :REM STA $0100,Y=>BIT
130 SYS 25730     :REM DECODIERE
132 POKE 25748,153:REM STA $0100
140 POKE 25759,76 :REM WIEDER JMP
150 IF PEEK(25745)<>201THEN END:REM EOR
160 POKE 25745,0:REM EOR #$00
170 REM $63F1 = JSR $F510 PATCHEN
180 IF PEEK(25585)<>245 THEN END
190 POKE 25585,4
200 POKE 25586,200
210 POKE 25587,76
220 REM NUN JSR $F510 -> JMP 04C8
230 REM $63C3 STA $0413 -> BIT $0413
240 IF PEEK(25541)<>141 THEN END
250 POKE 25541,44
260 REM ***************************
270 REM * NUN GEOS BOOT SPEICHERN *
280 REM ***************************
300 POKE 43,0  :POKE44,96:REM ANF
310 POKE 45,168:POKE46,100:REM ENDE
320 SAVE "GEOS BOOT",8
990 PRINT "ALLES KLAR"
995 END
998 REM ***************************