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Update README.md
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btb authored Sep 21, 2023
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Expand Up @@ -52,9 +52,9 @@ JP2 open, Jumper on pins 1,3 (lower right): Card ROM enabled

#### Using two ROM images on a 4K or larger ROM:

JP3 shorted, Jumper on pins 1,3 (lower right) and 2,4 (lower left): Upper ROM image enabled (A11 high)
JP2 shorted, Jumper on pins 1,3 (lower right) and 2,4 (lower left): Upper ROM image enabled (A11 high)

JP3 shorted, Jumper on pins 3,5 (upper right) and 4,6 (upper left): Lower ROM image enabled (A11 low)
JP2 shorted, Jumper on pins 3,5 (upper right) and 4,6 (upper left): Lower ROM image enabled (A11 low)

### Solder Jumper JP2
Short, and install DPDT switch (or use pair of jumpers as above) for ability to select two different F8 ROM images on a single (4K or larger) ROM.
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