WonderVIC

Modding and Technical Issues

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MCes
Vic 20 Afficionado
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Joined: Fri Jul 24, 2015 1:19 am
Location: Italy

WonderVIC

Post by MCes »

WonderVIC is out of alfa test!

The modification is a FULL expansion RAM (37K) and an alternative kernal,
all on board leaving the cartridge expansion free for user ,
the RAM/Kernel setting are chosen (during HW reset) through the function keys: no hole on case!
HW reset can be generated by continuos pressing of "RESTORE" key.

Code: Select all

 continuous pressing of RESTORE will generate a HW RESET,
 during HW RESET the function keys could select:
  _____________________________________________________
 |          | 3k RAM |  16k   |  8k  |   2K   |   8k   |
 | F5 F3 F1 | 1+2+3  | BLK1+2 | BLK3 | I/O2+3 |  BLK5  |
 |__________|________|________|______|________|________|
 | -- -- -- |   --   |   --   |  --  |   --   |   --   |
 | -- -- ** |   **   |   **   |  --  |   --   |   --   |
 | -- ** -- |   **   |   --   |  --  |   --   |   --   |
 | -- ** ** |   **   |   **   |  **  |   --   |   --   |
 | ** -- -- |   **   |   **   |  **  |   --   |   **   |
 | ** -- ** |   **   |   **   |  **  |   --   | R.ONLY |
 | ** ** -- |   **   |   **   |  **  |   **   |   **   |
 | ** ** ** |   **   |   **   |  **  |   **   | R.ONLY |
 |__________|________|________|______|________|________|

      (R.ONLY = Read only: ROM emulation)
      
 F7= second kernal (JDos + cartridge autostart disabled)
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