From: R.Kiefer.SPAEM@gmx.de   
      
   Lukazi wrote:   
      
   > Cards which contain memory (ROM) are easy to be made auto detectable   
   > because the memory can be programmed to output a specific identifier to   
   > the peripheral slot memory locations ie $C0XX. However it is much more   
   > difficult to detect cards that do not contain any memory chips.   
      
   It's difficult to detect a M$ Z80 Softcard: there is no ROM, there is no   
   register at $C0Nx, but if you write to $CNxx you will switch off the   
   6502 and switch on the Z80. If there is no suitable code for the Z80   
   you've lost control.   
      
   Microsoft could have used a register or $C0Nx to toggle between the two   
   CPUs, but they did not.   
      
   Regards   
   Ralf   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)