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base:6502_6510_coding [2017-11-17 15:35] – [Illegal opcode tricks] cruzerbase:6502_6510_coding [2018-12-18 17:03] – [The Addresses 00 and 01] ftc
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   * [[Extra Instructions Of The 65XX Series CPU]] - Overview article by Adam Vardy from 1995 - quite old by now   * [[Extra Instructions Of The 65XX Series CPU]] - Overview article by Adam Vardy from 1995 - quite old by now
-  * {{:base:nomoresecrets-nmos6510unintendedopcodes-20142412.pdf|No More Secrets}} - Documentation of unintended opcodes by Groepaz (Version 2014-12-24).+  * {{:base:nomoresecrets-nmos6510unintendedopcodes-20172412.pdf|No More Secrets 0.92}} - Documentation of unintended opcodes by Groepaz (2017-24-12 version). 
 ==== Illegal opcode tricks ==== ==== Illegal opcode tricks ====
 A collection articles and routines that exemplify particular aspects of some illegal opcode. A collection articles and routines that exemplify particular aspects of some illegal opcode.
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    * [[base:memconfig|Memory Management]] - 00 and 01 can be used to switching on/off BASIC, KERNAL, and CHAR ROM.    * [[base:memconfig|Memory Management]] - 00 and 01 can be used to switching on/off BASIC, KERNAL, and CHAR ROM.
    * [[Datasette]]    * [[Datasette]]
-   * [[Unused Bits]] - The upper, unused bits show some unexpected behavior. FIXME 
    * [[RAM beneath $00 and $01]]    * [[RAM beneath $00 and $01]]
  
base/6502_6510_coding.txt · Last modified: 2023-10-20 08:14 by white_flame