COMMODORE SECRETS
                                       
   
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  Product: Any Commodore 8-bit computer
  
          Typing:
          
PRINT""+-0

   will crash the BASIC.
          
  Product: Commodore PET, Vic20, 64, but not the 128
  
          Typing:
          
35072121

   crashes the BASIC. The Commodore 64 sometimes reports ?SYNTAX ERROR
          instead.
          
  Product: Commodore PET, older versions
  
          Typing:
          
WAIT 6502,n

   Results in the word MICROSOFT! being displayed n times.
          
  Product: Commodore 128
  
          To get the credits and anti-war message you just need to type:
          
SYS 32800,123,45,6

   
          
  Product: Commodore 1571 Disk Drive (DOS 3)
  
          The following BASIC 2 program displays the software and
          hardware credits and a date.
          

10 dv=8:sa=32770:n=46:rem device number, starting address, number of bytes
20 st$="":open1,dv,15,"m-r"+chr$(sa-int(sa/256)*256))+chr$(sa/256)+chr$(n)
30 fori=1ton:get#1,by$:st$=st$+by$:printasc(by$);:next:close1
40 print:printst$

  Product: Commodore 1581 Disk Drive
  
       
error = $ff3f
org $3000
lda #$79  OR  lda #$7a
jmp error

   
          
          The two messages are listed in the 1581 dos reference guide as:
          
          $79: Software by David Siracusa. Hardware by Greg Berlin
          $7a: Dedicated to my wife Lisa
          
          Here is a program to illustrate the messages:
          

10 open15,9,15:n$="m-w":m$=""
20 fori=0to3:reada:n$=n$+chr$(a):next
30 fori=0to2:reada:m$=m$+chr$(a):next
40 print#15,n$chr$(121)m$:print#15,"m-e"chr$(0)chr$(3)
50 get#15,a$:printa$;:ifst=0goto50
60 print#15,n$chr$(122)m$:print#15,"m-e"chr$(0)chr$(3)
70 get#15,a$:printa$;:ifst=0goto70
80 data0,3,5,169
90 data76,63,255